User Manual WFM 601A, WFM 601E & WFM 601M Serial Digital Component Waveform Monitors 071-0103-01 This document supports firmware version 1.00 and above.
Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000 TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of three (3) years from the date of shipment. If a product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product.
Service Assurance If you have not already purchased Service Assurance for this product, you may do so at any time during the product’s warranty period. Service Assurance provides Repair Protection and Calibration Services to meet your needs. Repair Protection extends priority repair services beyond the product’s warranty period; you may purchase up to three years of Repair Protection.
Table of Contents General Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix xi Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accessories . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Serial Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vector Display Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Video In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Waveform Display .
Table of Contents Display Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–25 DISPlay:SINGLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DISPlay:INTENSITY:: . . . . . . DISPlay:INTENSITY:READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DISPlay:INTENSITY:AUDIO (WFM 601A Only) . . . . . . . . . . . . DISPlay:PIXC . . . . . .
Table of Contents FILTer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PORT:ECHO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ROTEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SNID? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents List of Figures Figure 1–1: Dimensions of the 1700F00 plain cabinet . . . . . . . . . . . . . Figure 1–2: 1700F02 portable cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1–3: Rear view of the waveform monitor in a 1700F02 cabinet Figure 1–4: The 1700F05 rack cabinet holds two instruments . . . . . . Figure 1–5: 1700F05 cabinet showing utility drawer and blank panel Figure 1–6: Monitoring the video bit stream of a serial receiver . . . .
Table of Contents Figure 3–8: Typical Bowtie display on the waveform monitor . . . . . . Figure 3–9: Bowtie waveform showing a timing error in CH 3 . . . . . Figure 3–10: Bowtie waveform showing gain error in CH 3 . . . . . . . . Figure 3–11: Configure menu for WFM/VEC showing the selection knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3–12: Map of functions available in the Configure menu . . . . Figure 3–13: Example of the Digital List display . . . . . . . . .
Table of Contents List of Tables Table 3–1: List of measured and actual rise times for the waveform monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table A–1: Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . Table A–2: CRT display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table A–3: AC power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table A–4: Environmental characteristics . . . . .
Table of Contents viii WFM 601A, WFM 601E & WFM 601M User Manual
General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. Only qualified personnel should perform service procedures. To avoid potential hazards, use this product only as specified. Injury Precautions Use Proper Power Cord. To avoid fire hazard, use only the power cord specified for this product. Avoid Electric Overload.
General Safety Summary CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property. Terms on the Product. These terms may appear on the product: DANGER indicates an injury hazard immediately accessible as you read the marking. WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. Symbols on the Product.
Preface This manual describes the capabilities of the WFM 601A, WFM 601E, and WFM 601M Serial Digital Component Waveform Monitors and their features and specifications. To get started, refer to the first section, Getting Started. This section shows you how to install and configure the waveform monitor for use in your operating environment. For detailed information about a feature, refer to the third section, Reference.
Preface Contacting Tektronix Product Support For application-oriented questions about a Tektronix measurement product, call toll free in North America: 1-800-TEK-WIDE (1-800-835-9433 ext. 2400) 6:00 a.m. – 5:00 p.m. Pacific time Or contact us by e-mail: tm_app_supp@tek.com For product support outside of North America, contact your local Tektronix distributor or sales office. Service Support Contact your local Tektronix distributor or sales office.
Getting Started
Getting Started This section presents information you need to set up your waveform monitor and to check that it is functional. This section contains the following information: Product Description gives an overview of the product capabilities. Accessories lists the standard and optional accessories. Installation describes how to set up the waveform monitor for use. Functional Check gives a procedure to verify the primary functions of your waveform monitor.
Getting Started SMPTE RP-165 standard EDH indicator for presence Embedded Audio indentification Analog audio Lissajous display on the WFM 601A Source signal level meter and cable-length readout on the WFM 601E and the WFM 601M Lightning and Vector displays Reclocked Serial Component Digital output following A/B switching Video Reference: Internal Serial Component signal (follows A/B switching) or external composite Menus An expanded feature set is available through the menus.
Getting Started Options The following options are available when ordering a waveform monitor. Power Cord Options. If you do not specify a power cord option, the waveform monitor is shipped with a North American 125 V power cord and one replacement fuse. The following power cord options are available when purchasing your waveform monitor. Power cords for use in North America are UL listed and CSA certified.
Getting Started 1700F06 Blank Panel. When you use only one side of a 1700F05 enclosure, insert a 1700F06 Blank Panel in the unused side to improve appearance and air flow. 1700F07 Utility Drawer. When you use only one side of a 1700F05, install the 1700F07 utility drawer in the unused side to provide storage and improve appearance and air flow. The drawer opens and closes freely, unless latched for transport.
Installation This section provides instructions for installing the waveform monitor into a standard rack or one of the optional cases. At installation time, save the shipping carton and packing materials (including the anti-static bag) in case you need to ship the instrument. Included Accessories The waveform monitor is shipped with several accessory items which may be required for normal use. For more information on accessories, refer to page 1–2.
Installation 21 cm (8.25 in) 42.7 cm (16.2 in) 13 cm (5.1 in) Figure 1–1: Dimensions of the 1700F00 plain cabinet The optional 1700F00 cabinet is the basic element for all of the cabinets. The 1700F02 Portable carrying case is an enhanced version of the 1700F00 cabinet, as is the 1700F05 side-by-side rack mount assembly. All cabinets are available from your Tektronix representative.
Installation The portable cabinet, 1700F02, is shown in Figure 1–2. The 1700F02 has a handle, four feet, and a flip-up stand. The mounting hole sizes and spacing are different from those of the 1700F00. 42.7 cm (16.2 in) 21 cm (8.25 in) 13 cm (5.
Installation Installing the Waveform Monitor in a Cabinet Secure the waveform monitor in a cabinet using two 6-32 Pozidriver screws. Figure 1–3 shows the location of these screws on the rear panel. CAUTION. Do not carry a waveform monitor in a cabinet without installing the rear panel mounting screws. Without the mounting screws, there is nothing to keep the waveform monitor in its cabinet.
Installation Rack Adapter The optional 1700F05 side-by-side rack adapter, shown in Figure 1–4, consists of two attached cabinets. Use it to mount the waveform monitor and another half-rack width instrument, such as an analog component monitor, in a standard 19-inch rack. You can adjust the rack adapter so that the waveform monitor is aligned with other equipment in the rack. See Figure 1–4. 48.2 cm (19 in) 13.2 cm (5.3 in) Mounting holes Mounting holes 43.9 cm (17.
Installation If you are using only one side of the rack adapter, insert a blank panel (1700F06) or an accessory drawer (1700F07) in the unused section to improve airflow and appearance. Figure 1–5 shows the blank panel and drawer. 1700F05 1700F07 1700F06 Figure 1–5: 1700F05 cabinet showing utility drawer and blank panel Repackaging for Shipment To ship the waveform monitor to a Tektronix Service Center for service, follow these instructions: 1.
Installation c. Pack dunnage or urethane foam between the instrument and the carton. If using Styrofoam kernels, overfill the box and compress when closing the lid. You need three inches of cushioning on all sides of the instrument. 3. Seal the carton with shipping tape or industrial staples. Connecting Power The waveform monitor operates from a single-phase power source with the neutral conductor at or near earth ground. The line conductor is fused for over-current protection.
Installation Installing the Waveform Monitor in a Serial Video System The serial digital monitor can operate almost anywhere in the distribution system due to its high impedance, bridging, loop-through inputs. This section describes two types of connections and presents useful information on line termination. Most serial equipment employs a receiver that regenerates an output signal, such as the receiver shown in Figure 1–6.
Installation You can use the waveform monitor to check serial digital signals around a routing switcher. It is possible to look at all the inputs to the switcher with the use of a patch panel and the serial monitor as shown in Figure 1–7.
Installation Figure 1–8 shows the Eye Pattern with a good return loss terminator. Figure 1–9 shows the distorted Eye Pattern of a terminator having only 13 dB return loss (capacitive) at 100 MHz. Terminations with aberrations under 10% are acceptable. Figure 1–8: Eye Pattern display of a termination with good return loss Figure 1–9: Eye Pattern display of a termination with poor return loss Compatibility of BNC Center Pins.
Functional Check The following procedure provides a basic operational check of the waveform monitor. Only instrument functions, not measurement quantities or specifications, are checked in this procedure. Therefore, a minimum amount of test equipment is required. WARNING. To avoid personal injury, be sure that a cabinet is installed on the instrument. All checks are made with the cabinet installed.
Functional Check Initial Equipment Connections Figure 1–10 shows how to configure a signal generator and the waveform monitor to preform the Functional Check procedure. Waveform Monitor (rear panel) Signal generator 75 terminator SER A Loop-through input Output Figure 1–10: Initial equipment connections Follow these steps to configure the test equipment. 1. Ensure the waveform monitor is enclosed in a cabinet before connecting AC power. 2.
Functional Check Functional Check Procedure Perform the following steps to check the basic functions. WARNING. A shock hazard exists in the waveform monitor when it has no cabinet and it is connected to AC power. Always install the waveform monitor in a cabinet before use. 1. Perform steps listed under Initial Equipment Connections. 2. Set the video generator to produce a 100% Color Bar signal and to enable its output. 3. Press the front-panel power switch on the waveform monitor.
Functional Check @ 525/2:1 10 S/DIV Figure 1–11: Initial display in the Waveform display mode 1–18 WFM 601A, WFM 601E & WFM 601M User Manual
Functional Check 6. Check the display brightness controls. a. Press the CRT MENU button. The display controls should appear as shown in Figure 1–12. b. Check that you can position the waveform by adjusting the VERT and HORIZ POS bezel knobs. Leave the signal horizontally centered and with the waveform bottom on the 0 V line. @ 525/2:1 10 S/DIV DISPLAY READOUT TRACE RD TEST ON OFF FOCUS SCALE INTENSITY Figure 1–12: Channel 1 of a color bar signal with CRT adjustments visible c.
Functional Check 7. Check the Eye Display mode. (WFM 601E and WFM 601M only) a. Press the EYE/JITTER button to select the Eye display mode. The indicator next to EYE should light. b. Check that the waveform is triggered to produce an Eye display like that in Figure 1–13. The degree of noise on the Eye waveform is determined by the video generator and connecting cables. c. Press the lower bezel button to change from FLAT mode to EYE EQ mode.
Functional Check 1 UI/DIV 10 S/DIV 10HZ JITTER (P-P) TIMING 0.10UI 10HZ HPF 0.10UI Figure 1–14: Jitter display mode 9. Check the Vector display modes. a. Press the VECTOR/GAMUT button to select the Vector mode. The indicator next to VECTOR should light. b. Check that the display looks like the Vector display pictured in Figure 1–15. c. If the display does not appear as illustrated, ensure that the generator is set to output a 100% Color Bar signal. d.
Functional Check @ 525/2:1 10 S/DIV 100% BARS I Figure 1–15: Vector display for a 100% Color Bar signal @ 525/2:1 YL C G M R B B R M G C YL VECTOR LIGHTNING Figure 1–16: Lightning display for a 100% Color Bar signal 1–22 WFM 601A, WFM 601E & WFM 601M User Manual
Functional Check 10. Check the Gamut display modes. a. Press the VECTOR/GAMUT button to select the GAMUT display mode. The indicator next to GAMUT should light up. b. If the bezel button labeled DIAMOND/ARROWHEAD does not have Arrowhead selected, press that bezel button to select ARROWHEAD. c. Check that the display looks like the Arrowhead gamut display in Figure 1–17.
Functional Check d. Press the bezel button again to select the Diamond display mode. e. Check that the display looks like the Diamond gamut display in Figure 1–18. @ 525/2:1 ARROWHEAD DIAMOND Figure 1–18: Diamond gamut display 11. Check the Digital Waveform display modes. (WFM 601M only) a. Press the DGTL WFM/DGTL LIST button to select the Digital Waveform display mode. The indicator next to DGTL WFM should light up. b.
Functional Check @ 525/2:1 Y’ 10 S/DIV 840 d VIDEO DATA F1: 50 SMP 271 ACTIVE UPDATE FREEZE NEXT FIELD HEX DECIMAL BINARY LINE SEL SAMPLE Figure 1–19: Video digital waveform d. Press the bezel button again to select the DATA display mode. e. Check that the display looks like the Data digital waveform display in Figure 1–20.
Functional Check @ 525/2:1 DATA 10 S/DIV 840 d VIDEO DATA F1: 50 SMP 271 ACTIVE UPDATE FREEZE NEXT FIELD HEX DECIMAL BINARY LINE SEL SAMPLE Figure 1–20: Data digital waveform 12. Check the Audio display mode. (WFM 601A only) a. Set the function generator for a sine wave at 1 kHz and 10 Vpk-pk or less amplitude. b. Press the ANALOG AUDIO button. The AUDIO button indicator should light. c. Check that the display looks like the Audio display in Figure 1–21.
Operating Basics
Functional Overview This section provides an overview of the front-panel features and rear-panel connectors for the waveform monitor Front Panel Overview Figures 2–1 and 2–2 show the front panels of the three waveform monitors. A brief discussion of each feature follows the illustrations. For detailed information, refer to section 3, Reference.
Functional Overview WFM 601A front panel WFM 601E front panel Figure 2–2: WFM 601A and WFM 601E front panels DISPLAY and VIDEO DISPLAY Buttons Six buttons in the DISPLAY or VIDEO DISPLAY area control the type of display. Most buttons represent two related types of displays. Press a button to select one of its two displays. Press the button again to select the other. When you select a display type, the indicator beside it lights up. EYE. Displays the serial input signal as an Eye pattern display.
Functional Overview nance signals. The top of the display plots Y against Pb while the bottom plots Y against Pr. GAMUT. Displays the video signal in Diamond or Arrowhead gamut displays. Diamond mode evaluates RGB signals for gamut limit violations. Arrowhead display plots Y versus chrominance magnitude to show adherence to composite gamut limits. A gamut error message appears at the lower-left when an RGB or Composite gamut error is detected. Turn this alarm on or off in the CONFIG menu. WAVEFORM.
Functional Overview Bezel Knobs Bezel Buttons VIDEO IN SWEEP The center three knobs located below the CRT have multiple functions. Your selection of DISPLAY or MENU functions or items from on-screen menus determine the current function of each knob. A label adjacent to the knob indicates its current function. The outside knobs are permanently assigned to control vertical and horizontal trace position. The five bezel buttons along the right side of the CRT have multiple functions.
Functional Overview associated functions. Press the button again to exit the menu and disable the function. POWER CLEAR MENU Puts the waveform monitor into the standby or operational state. Turns off the MENU function readouts without affecting the menu settings. Also, provides access to alternative displays in some display modes. Using the Menus The instrument has a set of front-panel selectable MENU buttons that call up CRT readout menus.
Functional Overview Rear Panel Connectors Figure 2–4 shows the rear panel of the waveform monitor. A brief discussion of each connector follows the illustration. Power Connector The waveform monitor is designed to operate from a single-phase power source with the neutral conductor at or near earth ground. Only the line conductor is fused for over-current protection. A protective ground connection through the grounding conductor in the power cord is essential for safe operation. WARNING.
Functional Overview Loop-Through Inputs There are three passive loop-through inputs located on the rear panel. All are compensated for 75 W impedance and require proper termination at one end of the loop-through connector or at the receiver in a monitored system. SER A and SER B. Provides for connection of two 270 Mb serial component data signals. These inputs have minimal impact on the monitored serial data path. EXT REF.
Functional Overview 2–8 WFM 601A, WFM 601E & WFM 601M User Manual
Reference
Reference This section provides detailed information on the waveform monitor functions. The topics are organized alphabetically. Most topics are named after the front panel labels and button names. Audio Display (WFM 601A Only) The Audio display allows you to measure stereo audio phase errors of 20 kHz analog stereo audio signals. Connect the audio signals to the Remote Connector described in Appendix B on page B–2.
Reference Figure 3–2 depicts an input audio signal in which the X and Y channels are in perfect phase and have equal amplitudes. X = Y Figure 3–2: X and Y signal in phase with equal amplitudes Figure 3–3 depicts an input audio signal in which the X and Y channels are out of phase by some amount but have equal amplitudes. The pattern is an ellipse rather than an line, which indicates the signals are out of phase.
Reference Figure 3–4 depicts signals out of phase with unequal amplitudes. The figure on the left shows a signal in which the X channel amplitude is greater than the Y channel. The figure on the right depicts a signal with a larger Y channel amplitude. X X = Y = Y Figure 3–4: Signals out of phase with unequal amplitudes Figure 3–5 depicts an input audio signal in which the X and Y channels are reversed (reversed polarity) with equal amplitudes.
Reference Measuring Phase Error The electronic graticule of the Analog Audio Display has scales for measuring stereo audio phase and amplitude errors. The dashed diagonal line is the measurement axis for errors less than 90 degrees and is terminated in amplitude targets that correspond to the length of the X and Y axes. The boxes surrounding the crosshairs are equal to amplitude errors of 1/2 and 1 dB, respectively.
Reference Bowtie Display The Bowtie display evaluates the relative amplitude and timing between the three video channels. This display requires a special test signal from the monitored source. See Figure 3–8. The Tektronix TG 2000 Waveform Generator can produce a bowtie signal with 20 ns time marks, which aid in signal evaluation. The signal is a 500 kHz sinewave on CH 1 (luminance) and 502 kHz sine waves on CH 2 (Pb) and CH 3 (Pr). The display is made up of two separate waveforms as shown in Figure 3–8.
Reference Timing Measurement The timing measurement is based on alignment of the center marker and the null point at the center of the waveform. The generator provides a center marker, which is centered on the null point when interchannel timing is correct. A shift of the null to the left or right indicates a difference in the relative timing. If the null shifts two full time markers, the relative timing error between channels would be 40 ns.
Reference Calibration Instrument gain may require adjustment for special monitoring applications or to ensure the best precision for cursor or graticule signal measurements. Follow these procedures to set the vertical and horizontal gain. Setting Vertical Gain 1. Press the WAVEFORM/PARADE button to select the Waveform display. 2. Press the CONFIG menu button and use the bezel knob to select the CALIBRATE submenu. Press the bezel buttons to set CAL SIG on and GAIN CAL on. 3.
Reference Configure Menus The Configure menu provides configuration selections for all display modes and some external signals. Press the CONFIG MENU button at any time to enter the Configure menu. Figure 3–11 shows a sample Configure menu and the bezel knob used to select from the list of Configure menus. Figure 3–12 provides a map of all Configure menu functions.
Reference WFM/VEC GAMUT EYE PATTERN (WFM 601E and WFM 601M only) JITTER (WFM 601M only) SER ALARM MISSING VID FORMAT OFF ALARM CALIBRATE FULL FIELD CRC ERROR OFF ALARM ACTIVE PIC CRC ERROR OFF ALARM JITTER HPF 10 Hz 1kHz 10kHz 100kHz READOUT UI SEC OFF GAIN CAL ON OFF CLOCK BW 10 Hz 100 Hz 1 kHz ALARM DISP SCREEN PIX MON BOTH GAMUT (IRE) 100 110 120 131 COLOR BARS 75% 100% WFM AS RGB YPBPR PBPR OFFSET 0 mV 350 mV EAV-SAV PASS STRIP LIMIT FORMAT NTSC PAL AUTO FMT ERROR OFF ALARM CAL SIG ON OFF MODE
Reference GAMUT. Configures conditions and error indicators for the gamut error alarm. GAMUT CHECK. Determines whether RGB, Composite (CMPST), or both types of gamut errors trigger the gamut alarm. RGB indicates when the R, G, or B signals are less than 0 mV or greater than 700 mV. CMPST indicates when the sum of luminance and peak chrominance exceed the level selected with GAMUT (IRE). Use ALARM DISP to determine the indicator of the gamut alarm. ALARM DISP.
Reference SER ALARM. Selects which events cause the Alarm indicator to light. The front-panel Alarm light can be activated by up to four different serial video conditions. Press the adjacent bezel buttons to turn these alarms on or off. When an alarm condition occurs, the Alarm light stays on for a minimum of one second. If selected alarm conditions occur at a frequency greater than once per second, the Alarm light stays on continuously.
Reference CALIBRATE. Allows minor adjustment to the vertical and horizontal gain calibration prior to making amplitude measurements. To adjust gain, you need a 700 mV, 100 kHz signal. Use a known external reference signal or the internal calibrator signal. Selections for the CALIBRATE menu are only present when in the Waveform or Parade display modes. CAL SIG. Turns on or off the internal 700 mV calibrator signal.
Reference point, turn the bezel knob next to the HORIZ POS knob clockwise to increase the readout intensity. Press the CRT button to exit the CRT menu. Cursors Cursors allow you to measure the amplitude or time difference between waveform features. Cursors usually provide better measurement resolution than is possible measuring against the etched graticule. Press the CURSOR MENU button to display the Cursor menu.
Reference Time Cursors. Use the HORIZ POS knob to pan left or right to the cursor locations. Digital List (WFM 601M Only) The Digital List display lists the data values in sequence as they occur in the digital component video signal. Press the DGTL WFM/DGTL LIST button to enter the Digital List mode. Figure 3–13 shows an example of the Digital List display. You can use the data cursor, assigned to a bezel knob, to scroll through the data.
Reference Data Format Press the fourth bezel button to select the base used for displayed data from hexadecimal (h), decimal (d), or binary (b). The characters (h, d, or b) following the data indicates its base.
Reference Digital Waveform (WFM 601M Only) The Digital Waveform display shows the component data samples as a waveform. Press the DGTL WFM/DGTL LIST button to enter the Digital Waveform mode. Figure 3–15 shows an example of the Digital Waveform display. You can use the data cursor, assigned to a bezel knob, to scroll through the data waveform. The data cursor remains centered while the data scrolls by.
Reference will switch between Y and Y’. The symbol “–>” indicates the currently selected sample. The offset or broken data cursor seen in Figure 3–15 indicates that the Y’ sample is selected and it is not aligned (nonco-sited) with the Cb and Cr channels. The Y sample is aligned or co-sited with Cb and Cr channels and its data cursor appears in line. Use the Video mode when selecting samples in the active picture area. The DATA mode displays the samples in sequence as they are received (Cb,Y,Cr,Y’).
Reference Gain Interactions Use the GAIN MENU function to magnify the vertical gain of a single channel by X5 or X10. Figure 3–17 shows CH 1 with X5 gain. Note the data cursor readout is for the “Y” channel with a value of 868 decimal.
Reference Eye Display (WFM 601E and WFM 601M Only) The Eye pattern display presents a voltage-versus-time waveform composed of multiple sweeps of the serial bit stream. You can measure the amplitude, rise time, aberrations, and jitter of the serial signal using the Eye pattern display. Select either the Serial A or B input for display and measurement. You can also choose to display the raw signal data (FLAT) or perform receiver equalization (EQ EYE) on the signal before display.
Reference Trigger Modes Two trigger or sweep modes are available with the Eye display: OVERLAY and 10-EYE. OVERLAY. In OVERLAY mode, all bits of a serial word are overlaid at each eye location. Because numerous transitions for the data bits are overlaid, each eye crossing shows the timing jitter in the video system. Figure 3–18 shows the Overlay Eye display. Approximately three eyes are displayed and the horizontal scale is 1 ns/div.
Reference 10 EYE. In 10-EYE mode, every tenth bit of the serial signal appears at a fixed location on the display. Figure 3–19 shows the 10-EYE mode. Approximately 10 eyes are displayed per horizontal sweep, and the horizontal scale is 3 ns/div. In the 10-Eye more, you can observe events that are correlated with the serial word rate or horizontal line rate. In this mode, you can also observe systematic errors that affect certain bits in the data word.
Reference Eye Pattern Measurements This section describes how to measure parameters of the Eye pattern to verify standard signal specifications for serial digital transmission. The measurements discussed here are amplitude, aberrations, rise time, and jitter. Figure 3–20 illustrates the initial equipment connections. Waveform Monitor (rear panel) Serial source 75 terminator SER A Loop-through input Output Figure 3–20: Connections for measuring a serial source Setup for Measurements.
Reference 3. Use either the OVERLAY or 10-EYE display mode. Press the CONFIG MENU button and select the EYE PATTERN menu to choose OVERLAY or 10-EYE. 4. Set CLOCK BW, in the Config EYE menu, to 1kHZ in order to reduce the effects of time jitter, which can obscure the amplitude measurement. 5. For graticule measurement, select X1 vertical gain and make sure that variable gain is off. At X1 gain, the scale is 100 mV/div. 6. Use the VERT POS knob to position the waveform bottom at the 0 V line.
Reference The Eye display bandwidth of the waveform monitor is 450 MHz, so it can not display aberrations faster than this. Most receiver circuits are also bandwidth limited and usually ignore fast transients. This common bandwidth makes the waveform monitor a good indicator of problem sources in systems. Measuring Rise Time. Rise time measurements provide a check on the performance of sources and signal degradation by cabling. To measure rise time, perform the following steps: 1.
Reference Calculating Actual Rise Time. The waveform monitor Eye display has a bandwidth of 450 MHz which equates to a 20 – 80% rise time of 500 ps. Consider this finite rise time when you measure the displayed rise time. You can calculate the actual rise time of the source being measured using the following formula: TR(source) = Ǹ(TR(measured) )2–(0.
Reference Measuring Jitter. The Eye display in Overlaid mode provides a quick way to measure timing jitter. The WFM 601M waveform monitor also provides an automated Jitter measurement described on page 3–37. Timing jitter is the deviation of signal transitions compared to those of a reference clock. Ideally, all data bit transitions occur at equal intervals. In real systems, factors such as noise, pulse distortion, and variations in bit patterns cause timing jitter.
Reference genlock can add noise, which results in jitter in the 10 Hz to 1 kHz range. By using the appropriate BW Limit filter, genlock jitter can be included or rejected from a jitter measurement. Observing Word Correlated Behavior. The Eye Pattern display in 10-Eye mode allows you to analyze word correlated jitter. When video is serialized, a 270 MHz serial clock is derived from the 27 MHz rate parallel word clock.
Reference Gain Menu The GAIN menu allows you to expand the display vertically by set levels or to vary it continuously. The expanded waveform lets you inspect a waveform feature or more precisely position a cursor for a measurement. Press the GAIN MENU button to access the Gain menu. Use the fixed bezel buttons to select from the gain settings of X1, X5, X10, and Variable gain. Gain is useful in all display modes except PICTURE mode.
Reference Gamut Displays The waveform monitor features two types of gamut displays. The Diamond display checks video signals for proper RGB gamut. The Arrowhead display checks composite-coded video signals. Both gamut, or signal limit, displays can trigger an alarm when the input signal exceeds a gamut limit. Press the VECTOR/GAMUT button to select GAMUT. Use the bottom bezel button to select either the Diamond or Arrowhead display mode.
Reference Checking RGB Gamut. For a signal to be in gamut, all signal vectors must lie within the G-B and G-R diamonds. Conversely, if a vector extends outside the diamond, it is out of gamut. The direction of an excursion out of gamut indicates which signal is excessive. Errors in green amplitude affect both diamonds equally, while blue amplitude errors affect only the top diamond and red errors affect only the bottom diamond. You can set an alarm to indicate when the signal exceeds the RGB gamut.
Reference Arrowhead Gamut The Arrowhead gamut display plots luminance (Y) against chrominance (C) to check if the composite signal adheres to standard gamut. Figure 3–24 shows NTSC and PAL Arrowhead displays (75% Color bars) and indicates the values of the graticule lines. The arrow-head shape of the graticule results from overlaying the standard limits for luminance and luminance plus peak chrominance.
Reference Signals exceeding the luminance amplitude gamut extend above the top horizontal limit (top electronic graticule line). Signals exceeding the luminance plus peak chrominance amplitude gamut extend beyond the upper and lower diagonal limits. The bottom horizontal line shows the minimum allowed luminance level of 7.5 IRE for NTSC and 0 mV for PAL. See Figure 3–24. Graticule Format. The electronic graticule is different for PAL and NTSC formats. Use the CONFIG GAMUT menu to select the Limit Format.
Reference Gamut Alarms The Gamut display modes can alert you whenever a signal exceeds a selected limit. You can set alarm limits for both the Diamond RGB display and Arrowhead composite display. The alarm can take the form of an alarm message in the lower left corner of the CRT or a flashing of the MON OUT signal. To set either the RGB or composite alarm, follow these steps: 1. Press the CONFIG button and select the GAMUT menu. 2.
Reference Graticule Measurements The waveform monitor provides an internal etched graticule for waveform measurements. The internal graticule scales are on the same plane as the CRT phosphor to reduce parallax errors. You can adjust the graticule and trace illumination in the CRT menu for viewing or photographing the display. Figure 3–25 shows the etched graticule.
Reference K-Factor Graticule. A special graticule located at the top of the etched graticule allows measurement of K-Factor line-time distortion. Figure 3–26 shows the special graticule and how to align a 2T Bar waveform to measure time-line distortion. The graticule does not include the first and last 1 ms of the bar where short-time distortions (ringing, overshoot, undershoot, etc.) occur. The solid outer box equals a 4% K factor, while the dashed-line inner box equals a 2% K factor.
Reference 2T Pulse to Bar. 2T pulse-to-bar measurements are made using the solid and dashed lines located to the left of the K-Factor graticule. Setup is the same as for K-Factor measurement. The 2T pulse-to-bar graticule lines are scaled according to the following formula: 1 (1–4K) and 1 (1+4K) Where: K = 0.02 for 2% K Factor (using the dashed lines) or K = 0.04 for 4% K Factor (using the solid lines) Set Gain to X5 to increase the resolution to 0.4% and 0.8%.
Reference Jitter Measurement Display (WFM 601M Only) The Jitter display mode provides an automatic peak-to-peak measure of time jitter on the active SER A or B input signal. Selectable high-pass filters allow you to distinguish between high and low frequency jitter. Figure 3–27 shows an example of the Jitter display including a sample jitter waveform. The jitter mode converts any phase modulation to amplitude and plots it against time.
Reference Jitter Demodulation The Jitter measurement uses a demodulator method to determine signal jitter. The serial clock is recovered from the input signal and multiplied (demodulated) against a very stable oscillator, which translates any phase modulation (jitter) into a DC value. The resulting DC values plotted against time is proportional to jitter in the serial signal. This jitter waveform is passed through a high-pass filter and applied to a peak detector.
Reference Line Select The Line Select menu lets you select the part of the extracted video signal to display and measure. You can select one line, 15 lines, or a single sample on any line in any field. The selected part is indicated on the MON OUT signals as highlighted video. A readout in the upper left of the CRT indicates the currently selected field, line, and sample. For example, the display F1:22, SMP1441 means that field 1, line 22 and sample 1441 is selected.
Reference A special condition exists in 15H mode when you select the PARADE or WAVEFORM displays. The first line in the display corresponds with the LIN SEL readout. The second is from the second line and the third is from the third line in the sequence. See Figure 3–28. For more information on how line select affects the Parade mode, refer to page 3–41.
Reference Multiple Display The Multiple display allows you to overlay two display modes. When the Waveform or Parade mode is displayed, you can add either the Vector, Lightning, or Diamond displays. When you exit the Multiple display, the previous display is restored. Parade Display Display the component signals Y (CH 1), Pb (CH2), and Pr (CH 3) using the Parade display. You can choose to display one, two, or all three waveforms at once. Measure the waveforms using the graticule or Cursors.
Reference Picture Display The Picture display shows a monochrome version of the video signal carried by the serial digital input signal. Figure 3–30 shows an example of a color bar signal. The Picture display lets you verify the signal source. When Line Select is active, the highlight or “bright-up” of the selected line appears as it would on an external analog monitor. .8 .7 100% .6 .5 .4 50% .3 .2 .1 –.1 –.2 –.
Reference Presets The Preset menu makes it possible to recall front-panel settings from a list of 10 stored front-panel presets. You can store up to nine front-panel presets at these locations. The remaining one is factory programmed to help calibrate the waveform monitor. Preset Menu Press the PRESET MENU button to access the list of the 10 presets. The list appears over a bezel knob below the CRT. Rotating this knob moves the highlight box up or down the list.
Reference Ref Mode The REF button selects the synchronization reference. The default reference is the currently selected serial digital input (SER A or B). Press the REF button once to select the external reference input (EXT REF). The EXT indicator, located just above the REF button, lights when the external reference is selected. The EXT REF input is a 75 W loop-through input. The external reference signal can be a black burst or composite video signal.
Reference STATUS Screen The Status screen presents a signal description, the results of EDH checks, and the cable length. Figure 3–31 shows an example of the Status screen displaying a signal with a 525-line rate, 10 bit data, and 16 channels of embedded audio. Figure 3–32 shows the STATUS screen for firmware V1.X instruments.
Reference Features of the Status Screen. The Status screen features operate as follows: 3–46 Signal Present. Indicates when a valid serial digital signal is detected. When the serial receiver detects a no-signal condition, the status will read SIGNAL MISSING. 525/625 Lines. Gives the number of lines in the serial digital signal. 10/8 Bits. Gives the number of data bits in the serial digital signal. Audio. Gives the number of embedded audio channels detected in the serial digital signal.
Reference Status Screen for V1.X Firmware The WFM 601M with V1.X firmware includes cable length and signal strength readouts in the Status screen as shown in Figure 3–32. The other information in the STATUS screen is the same as that shown in Figure 3–31.
Reference FORMAT Screen (WFM 601E and WFM 601M Only) The FORMAT screen presents the results of six signal format checks. A given check reports back either OK or ERROR. The waveform monitor continuously performs the format checks. The results are not saved or latched; once an error condition clears, the indicator returns to OK. The FORMAT screen is identical for V1.X and V2.X firmware except for the CABLE selection for the DISPLAY bezel button.
Reference CABLE Screen (WFM 601E and WFM 601M Only) ANC Checksum. Indicates an error if an ancillary data checksum error has occurred The CABLE screen displays signal level and cable length readouts and allows you to select the cable type used in your installation. See Figure 3–34. This screen appears only with firmware V2.X and later. SIGNAL PRESENT 525 LINES 10 BITS SOURCE SIGNAL LEVEL: APPROX CABLE LENGTH: CABLE LOSS: 100 % 0 METERS 0.
Reference Measuring Error Rate DISPLAY. Selects either STATUS, FORMAT, or CABLE screens. CABLE TYPE. Selects the type of cable connecting the signal source to the waveform monitor. The Cable Type sets parameters needed to calculate the Source Signal Level and Approx. Cable Length. Press the CABLE TYPE bezel button to select the correct cable type for your installation. The waveform monitor provides two methods for measuring data transmission errors in serial video systems.
Reference seconds that contained errors (errored seconds) is indicated. An elapsed time indicator gives the total time since the error counter display was last reset. Use the elapsed time to calculate statistics such as percentage errored seconds. Press the RESET bezel button to set both the errored seconds readouts and the elapsed time counter to zero. Each ERR SEC readout has a STATUS field just below it. The status can be either Valid, Invalid, or Missing.
Reference Comparison of the Two Methods. Of the two methods described above, the EDH system is the most powerful. First, it works with any video program material, since the source-end CRC is calculated on a field-by-field basis. It does not matter if the source is a fixed pattern test signal or moving pictures. Thus, EDH can monitor error rate while your facility is in service.
Reference Vector Display Modes The waveform monitor provides two types of vector displays. One is a conventional Vector display that plots the two color difference signals, Pb and Pr, against each other. The Vector display is useful for checking the chrominance phase and amplitude. The second vector display is the Lightning display. The Lightning display plots luminance (Y) versus Pb on the top and Y versus Pr on the bottom. This display is useful for evaluating component signal amplitude and timing.
Reference Vector Graticule. The waveform monitor Vector graticule, shown in Figure 3–37, operates as a component vectorscope. Each chrominance vector of a Color Bar signal terminates as a bright dot in a target. The distance from the center box to the target box corresponds to the amplitude for the color being measured. The dot brightness corresponds to the duration of the color bar. The dimension of each target box represents 2% (±14 mV) of a 700 mV amplitude.
Reference Vector Timing Measurements. In the composite domain, the transitions between the vector end points display timing differences. But, because these timing differences include the delay in the decoder output filtering, you can usually ignore them. In the component domain there is no decoding required and therefore the color bar transitions contain useful timing information. These timing differences appear as looping or bowing of the transitions.
Reference Figure 3–39 shows the Lightning graticule with a trace. The target boxes at the end of each vector indicate a tolerance of ±14 mV. The closely spaced small dots provide a guide for checking transitions. These dots are spaced 40 ns apart while the widely spaced dots represent 80 ns. The electronic graticule eliminates the effects of CRT nonlinearity.
Reference Luminance Gain Measurement. The signal is driven along the vertical axis above and below the center box by the luminance signal. The lower half is driven down from the center. The luminance gain is correct when the center dot (clamped black level) is centered in the target box and the positive and negative excursions end at the top and bottom of the graticule. Perfect monochrome signals appear as a thin vertical line.
Reference Video In The VIDEO IN selections enable Serial input A or B and determine which component signals are displayed. The SERIAL A and B button corresponds to the SER A and B loop-through inputs on the rear panel. Only one input can be active at a time. The CH 1 button displays the Y or luminance signal. The CH 2 button displays the Pb or B-Y chrominance signal. The CH 3 button displays the Pr or R-Y chrominance signal. In the WFM AS RGB mode, CH 1 displays R, CH 2 displays G, and CH 3 displays B.
Appendices
Appendix A: Specifications Table A–1 lists the Electrical specifications for the WFM 601A, WFM 601E, and WFM 601M Serial Digital Component Waveform Monitors. Performance Requirements are generally quantitative and can be tested by the Performance Verification Procedure in the Service Manual. Reference information describes useful operating parameters that have typical values. These parameters are not directly checked in the Performance Verification Procedure.
Appendix A: Specifications Table A–1: Electrical specifications (cont.) Characteristic Performance requirement Reference information Serial Digital Video Interface (SER A and SER B inputs) Format 270 Mbit/s component. Complies with SMPTE 259M and CCIR 656. Input Type Passive loop-through, 75 compensated. Input Level 800 mV peak-to-peak $10%. Input voltages outside this range might cause reduced receiver performance. Return Loss Power on w25 dB 1–270 MHz, channels on or off.
Appendix A: Specifications Table A–1: Electrical specifications (cont.) Characteristic Performance requirement Reference information Jitter Attenuation 10 Hz HPF < 10% for frequencies > 20 Hz. –3 dB at approximately 10 Hz. 100 Hz HPF < 10% for frequencies > 300 Hz. –3 dB at approximately 100 Hz. 1 kHz HPF < 10% for frequencies > 3 kHz. –3 dB at approximately 1 kHz. Up to 3 dB jitter gain from 2–4 kHz. Display Modes Overlay Overlays bits 0-9 of a serial word to form each Eye opening.
Appendix A: Specifications Table A–1: Electrical specifications (cont.) Characteristic Performance requirement Dynamic Range Reference information 10 UI p-p Deflection Factor Horizontal Four modes available: 1 Line, 2 Line 1 Field, 2 Field Vertical X1 1 UI/div $5% X5 0.2 UI/div $10% X10 0.1 UI/div $20% –3 dB Bandwidths Bandwidth Selection Jitter Output (WFM 601M Only) 10 Hz to 5 MHz 1 kHz to 5 MHz 10 kHz to 5 MHz 100 kHz to 5 MHz 120 mV/UI $10% into 75 load.
Appendix A: Specifications Table A–1: Electrical specifications (cont.) Characteristic Performance requirement Reference information Diagnostics Embedded Audio Identifies the presence of up to 16 channels of AES/EBU digital audio. Ancillary Data Identifies the presence of ancillary data (other than audio and EDH) and indicates if a checksum error has occurred. Bit Activity Indicates if any of the 10 data bits are always high or low during the active picture for an entire field.
Appendix A: Specifications Table A–1: Electrical specifications (cont.) Characteristic Performance requirement Reference information w40 dB to 6 MHz; typically w46 dB to 6 MHz, w40 dB to 10 MHz. Return Loss Waveform Horizontal Deflection Sweep Internal Synchronization: Proper Sweep Length: [12 divisions horizontal and vertical synchroniza- Sweep free runs without input tion with a component digital signal conforming to CCIR Rec. 601/656 and SMPTE 125M.
Appendix A: Specifications Table A–1: Electrical specifications (cont.) Characteristic Performance requirement Horizontal Gain Accuracy $1% Display to Graticule Registration v0.25 box with the color bar black, display dot centered in target Reference information Electronic Graticule Shape Minimal visible gaps or tails at corners of target boxes Vector Display PB is displayed on horizontal axis and PR is displayed on vertical axis.
Appendix A: Specifications Table A–1: Electrical specifications (cont.) Characteristic Performance requirement Reference information WFM 601M 700 mV $1% peak-to-peak (Y-PB-PR mode) Typically < "2% for RGB mode. WFM 601E and WFM 601A Typically 700 mV $1% peak-topeak (Y-PB-PR mode) Active Video Accuracy Black (Blanking) Output Level 0 mV "35 mV Frequency Response Y to 5.75 MHz: $1% PB and PR to 2.75 MHz: $1% Non-Linearity v0.5% Group Delay Error Y at 5.75 MHz: v10 ns PB and PR at 2.
Appendix A: Specifications Table A–3: AC power source Characteristic Description Reference information Electrical Rating 90 – 250 V, 50/60 Hz, 1.5 A maximum ; Continuous range from 90 to 250 VAC Supply Type Single Phase Supply Connection Detachable cord set Power Consumption < 115 VA (75 watts) Table A–4: Environmental characteristics Characteristic Standard Reference information Vibration Military Specification: Mil–T–28800D, Paragraph 1.2.2, Class 3 5 minutes at 5 – 15 Hz with 0.
Appendix A: Specifications Table A–6: Safety standards Characteristic Standard U.S. Nationally Recognized Testing Laboratory Listing ANSI/ISA S82.01 - Safety Standard for Electrical and Electronic Test, Measuring, Controlling, and Related Equipment, 1994. Canadian Certification CAN/CSA C22.2 No. 1010.1 - Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use.
Appendix A: Specifications Table A–8: Certifications and compliances Characteristic Standard EC Declaration of Conformity Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility and Low Voltage Directive 73/23/ECC for Product Safety.
Appendix A: Specifications A–12 WFM 601A, WFM 601E & WFM 601M User Manual
Appendix B: Remote Operation The waveform monitor has two multi-pin connectors on the rear panel that provide different types of remote control. The RS-232 port provides for automated calibration using a procedure contained in the Service Manual. In a future firmware release, the RS-232 port will provide remote control using a SCPI command set. The REMOTE connector provides a way to monitor signal errors and to load or save Presets. It also provides two audio channel inputs for the WFM 601A.
Appendix B: Remote Operation When STORE (pin 25) is grounded along with one of the preset pins, the current front-panel settings are stored at the selected Preset location. Line Select Strobe Pin 15 outputs an active-low TTL pulse during selected lines when in Line Select modes. Use this signal as a trigger for a logic analyzer or oscilloscope. Serial Video and Gamut Alarm Pin 16 outputs an active-low TTL level whenever the front-panel ALARM light is illuminated or when a gamut alarm occurs.
Appendix B: Remote Operation Table B–1: Remote connector pin assignments and functions (cont.) Pin number Function Signal requirement Miscellaneous information 11 –X Audio Input Audio input, –8 V peak (WFM 601A Only) 12 Not Used No connection allowed 13 Not Used No connection allowed 14 Ground TTL ground 15 Line Strobe In Line Select Modes, true, low, during selected video lines 16 Serial Video Alarm True low.
Appendix B: Remote Operation Table B–1: Remote connector pin assignments and functions (cont.) Pin number Function Signal requirement Miscellaneous information 24 Preset 8 Ground (TTL low) Recalls the stored Preset from this location, or selects the Preset 1 memory location to store the current front-panel settings. See the pin 25 description. 25 Store Ground (TTL low) Grounding STORE enables storage of instrument settings.
Appendix C: Remote Command Set This section describes the remote command set for the waveform monitor and provides examples of typical usage. The remote command set is a versatile and convenient interface that conforms to industry standards for programmable instruments. The waveform monitor permits remote operation through the RS-232 port on the rear panel. Remote communication parameters are described in Appendix B: Remote Operation.
Appendix C: Remote Command Set in the Syntax sections. Query examples and typical responses are given in the Response sections.
Cable Measurement Commands Cable Measurement Commands The commands in this section provide control of the cable measurements available in the Serial status mode. You access these measurements differently depending on whether your waveform monitor has V1.X or V2.X (or latter) firmware. With either version, you must first enter the Serial mode by sending the command MENU:SERial. This is equivalent to pressing the SERIAL button on the front panel. For waveform monitors with version V1.
Cable Measurement Commands SLM:SOURCE? (WFM 601E and WFM 601M Only) Returns the power (Signal Level readout) of the source as a percent of an 800 mV signal. This command works only with V2.X firmware. See the corresponding V1.X firmware command SLM:LEVEL. Syntax Arguments Examples Returns SLM:[SOURCE]? None slm:source? :SLM:SOURCE 95 PERCENT SLM:RCVR? (WFM 601E and WFM 601M Only) Returns a dB value for the power lost in the cable. This command works only with V2.X firmware.
Cable Measurement Commands SLM:LEVEL? (WFM 601E and WFM 601M Only) Returns the power (Signal Level readout) of the source in decibels with reference to an 800 mV signal. This command works only with V1.X firmware. See the corresponding V2.X firmware command SLM:SOURCE. The Signal Level value is derived as LEVEL= 20 Log (Estimated Source Power)/800 mV. A negative sign indicates that the received power is below 800 mV. Syntax Arguments Examples Returns SLM[:LEVEL]? None slm:level? SLM:LEVEL 4.
Configuration Commands Configuration Commands The commands in this section allow you make the following changes to the waveform monitor: Select the source of your reference signal Select a specific mode for different displays (for example, select the Lightning mode when in the Vector display) Set parameters for various displays Most of these commands correspond to the selections available from the CONFIG menu on the waveform monitor.
Configuration Commands ARROWhead:LIMIT:PAL Sets the PAL gamut limit amplitude on the ARROWHEAD graticule. The gamut limit triggers an alarm when exceeded by the input signal. This selection corresponds to the choices available under GAMUT in the CONFIG GAMUT menu. Use the command DISPlay:SINGLE:GAMut to enable the GAMUT display.
Configuration Commands ARROWhead:FORMat Sets the video format for theARROWHEAD graticule. Use the command DISPlay:SINGLE:GAMut to enable the GAMUT display. Use the command ARROW:LIMIT:NTSC or ARROW:LIMIT:PAL to set the gamut alarm setting.
Configuration Commands GAMut:ALarm:TRIGger Determines the type of gamut error that will trigger a gamut alarm. This command corresponds to the selections found under GAMUT CHECK in the GAMUT CONFIG menu.
Configuration Commands STANDard Sets the scanning standard that the instrument expects to NTSC (525 lines) or PAL (625 lines). When in the AUTO mode, the waveform monitor automatically senses the standard of the input signal. This selection corresponds to the choices available under STANDARD in the CONFIG FORMAT menu.
Configuration Commands VECtor:GRATicule Selects either the Lightning or Vector display. Use the command DISP:SINGLE:VEC (page C–25) to enable the vector display modes. Syntax Arguments Examples Returns VECtor:GRATicule VECtor[:GRATicule]? vec:grat ltng vec:grat? :VECTOR:GRATICULE LIGHTNING SERial:MENU Sets the Serial Format display to the Status, Format, or Cable screens.
Configuration Commands SERial:DISPlay Sets the display to native YPbPr or transcoded RGB for the Waveform and Parade displays. The monitor outputs are not affected. This selection corresponds to the choices available under WFM AS in the CONFIG WFM/VEC menu.
Configuration Commands SERial:EAVSAV This command permits stripping of the END/START of ACTIVE VIDEO information from the displayed signal. This selection corresponds to the choices available under EAV–SAV in the CONFIG WFM/VEC menu.
Configuration Commands Table C–2: SERial:ALarm: commands and options Examples Returns : Remarks FMTERR (Format error) ALARM | OFF Sets the format error alarm on or off. When on, a Serial Format error lights the Alarm LED on the front panel. This selection corresponds to the choices available under FMT ERROR in the CONFIG SER ALARM menu. FFCRC ALARM | OFF (Full-field cyclic redundancy check) Sets the full-field cyclic redundancy check (FFCRC) error alarm on or off.
Configuration Commands Table C–3: UIMENU: commands and options Examples Returns : Remarks STICKY FILTer | CURsor | LINESelect | GAIN | CONFIG Sets the selection to the named subsystem when in the UIMENU mode. The Sticky function is accessible from the front panel by pressing a menu button before pressing the CONFIG button. PREset ON | OFF Enables or disables UIMENU presets. Use the PRESET commands to recall, store, and name presets.
Cursor Commands Cursor Commands The commands in this section allow you to select and move the voltage and timing cursors on the waveform monitor. They also allow you to make measurements using the cursors. CURsor:SELect Enables any one of the following cursor types: Syntax Arguments Examples Returns C–16 VOLT provides two voltage cursors and a track control. TIME provides two time cursors and a track control. MARK provides three amplitude markers.
Cursor Commands CURsor:CONTROL Selects either the VOLT or TIME cursor when the cursor type is both voltage and time. This command operates like the bezel button for selecting between voltage and time cursors when VOLT_TIME (or the front panel selection V+T) is enabled.
Cursor Commands : Positions the voltage or timing cursors over the voltage range or timing base of the displayed waveform. When :TRACK is ON, moving one cursor moves the other cursor the same distance. Table C–4 describes the voltage and timing cursor positioning commands, arguments, and limits.
Cursor Commands :TRACK Enables cursor tracking. When :TRACK is ON, moving one cursor moves the other cursor an equal amount in the same direction. Table C–5 describes the voltage and timing cursor tracking commands. Both options can be turned ON or OFF. Use the Voltage and Timing Cursor positioning commands (page C–18) to move the cursors.
Digital Waveform and Digital List Commands Digital Waveform and Digital List Commands The commands in this section allow you to change parameters for the Digital Waveform and Digital List displays. DGTL? (WFM 601M Only) NOTE. The values displayed when using this command are accurate only when the waveform monitor is in the Data List mode. Returns data for all DGTL display settings. For a description of each part of the returned data, refer to the associated command descriptions.
Digital Waveform and Digital List Commands DGTL:REGion? (WFM 601M Only) Returns the region of the video signal where the data cursor is located. Possible regions include active picture, horizontal blanking, and vertical blanking. Syntax Arguments Examples Returns DGTL:REGION? None dgtl:region? :DGTL:REGION ACTIVE DGTL:DATA? (WFM 601M Only) DGTL:DATA:V#? NOTE. The values displayed when using this command are accurate only when the waveform monitor is in the Data List mode.
Digital Waveform and Digital List Commands Syntax Arguments Examples Returns DGTL:DATA? DGTL:DATA:V#? Include the letter V followed by an integer (0–14) for the line number (#) argument. disp:single:dlist dgtl:data:v7? dgtl:data:v7? :DGTL:DATA:V7 536 DGTL:VDATA? (WFM 601M Only) NOTE. The values displayed when using this command are accurate only when the waveform monitor is in the Digital Waveform mode.
Digital Waveform and Digital List Commands DGTL:VIDmode
Digital Waveform and Digital List Commands DGTL:BASE (WFM 601M Only) Displays the sample values in hexadecimal, binary or decimal format on the Digital List display.
Display Commands Display Commands The commands in this section allow you to select and set parameters for the display modes of the waveform monitor. You must use the VECtor:GRATicule and GAMut:GRATicule commands to select one of the two modes for the Vector and Gamut displays. DISPlay:SINGLE Sets the display mode to one of those described in Table C–6.
Display Commands Table C–6: DISPLay:SINGLE commands (cont.) Examples Returns Selects Remarks PIX Picture Use the commands DISPlay:PIXB and DISPlay:PIXC to set the blackness and contrast levels (page C–28). GAMut Diamond | Arrowhead Use the command GAMut:GRAT to select the DIAmond or ARROW display (page C–8). BOWtie Bowtie AUDIO Audio Use the command GAIN:AUDIO (page C–35) to set the audio input gain level.
Display Commands Table C–7: DISPlay:INTENSITY command options WFM Sets the intensity of the Waveform display 1 –2047 to 1700 VEC Sets the intensity of the Vector display 1 –2047 to 1700 LTNG Sets the intensity of the Lightning display 1 –2047 to 1700 EYe Sets the intensity of the Eye display 1 –2047 to 1700 1 Examples Returns When REF mode is set to Internal, the displa
Display Commands DISPlay:INTENSITY:AUDIO (WFM 601A Only) Sets the intensity of the on screen readout text. Intensity is an integer from –2047 to 1700. Syntax Arguments Examples Returns DISPLay:INTENSITY:AUDIO DISPLay[:INTENSITY | :INTENSITY:AUDIO]? displ:intensity:audio 1000 display:intensity:audio? :DISPLAY:INTENSITY:AUDIO 1000 DISPlay:PIXC Sets the contrast in the Picture display. The contrast value is an integer from –170 (low) to –1200 (high).
Display Commands sponds to the BLACK LEVEL adjustment available when the CRT MENU button is pressed in the Picture display. Syntax Arguments Examples Returns DISPlay:PIXB DISPlay[:PIXB]? displ:pixb 100 display:pixb? :DISPLAY:PIXBLACKNESS 100 DISPlay:TRACEROT Allows adjustment of trace rotation. The argument is an integer from –2047 to +2047. The median value ( 0 ) represents a trace rotation angle of approximately 0 degrees.
Display Commands Arguments Examples Returns disp:scale –100 display:scale? :DISPLAY:SCALEILLUM –100 DISPlay:FOCUS: Adjusts the CRT focus for different Line Select modes. The for all of the FOCUS settings is –2047 to +2047. Table C–8 describes the command options. Use this command to set the focus for displays using Normal, H1 or H15 LINE SELECT modes.
Error Commands Error Commands The waveform monitor detects errors and records error messages in an error message buffer. To determine whether an error has been recorded, send the query ESR?. If an error has been detected, the waveform monitor will respond with a message similar to :ESR 32. To get more information about the error, send the query ALLEV?. The response to the ALLEV? query will be similar to one of the error message types described in Table C–9.
Error Commands The error messages displayed consist of three parts: An ALLEV response number A description of the error type A record of the command string in which the error was detected The description of the error type and the record of the command string are enclosed in quotes. Multiple error messages are separated by a comma and an ALLEV response number. Syntax Arguments ALLEV? None Table C–9: Typical ALLEV? responses to detected system errors.
Eye Pattern Commands Eye Pattern Commands The commands in this section allow you to select either the Eye or EQEye displays and to toggle between the Overlay and 10 Eye modes. Use the command DISPlay:SINGLE:EYe to enable the Eye display. EYe:DISPlay < FLAT | EQEYE> (WFM 601M Only) Selects either the Flat (or raw) digital data stream or an Equalized data stream for the Eye display. The Flat mode corresponds to the EYE bezel button selection in the Eye display mode.
Eye Pattern Commands EYe:CLOckhpf (WFM 601E and WFM 601M Only) Selects between high-pass filters 10, 100, or 1000 Hz to suppress low-frequency jitter while in the Eye display mode.
Gain Commands Gain Commands The commands in this section allow you to select fixed gain levels or set variable gain levels for the Waveform, Vector, and Lightning displays. GAIN:AUDIO (WFM 601A Only) Sets the gain level of the analog audio input to the desired level and scales the electronic graticule accordingly.
Gain Commands GAIN::VAR:STATE Sets variable vertical gain ON or OFF for the Waveform or the Vector displays. Variable gain is selectable in the GAIN menu. Syntax Arguments Examples Returns GAIN::VAR:STATE GAIN[::VAR:STATE]? and gain:wfm:var:state on gain:wfm:var:state? :GAIN:WFM:VARIABLE:STATE ON GAIN::VAR:VALUE Sets the value of variable for the Waveform or Vector display to an integer value.
Gain Commands GAIN:LTNG:VAR::STATE Sets the variable vertical or horizontal gain ON or OFF for the Lightning display.
Input Commands Input Commands The commands in this section allow you to make the following changes to the waveform monitor: Select an input signal source Select which channel or channels to display Set the offset level for the Pb and Pr channels of the input signal INput:SOUrce Selects the signal for display from the A or B rear-panel, loop-through inputs.
Input Commands INput:CHANnel Selects the component YPbPr or RGB channel to display in Waveform and Parade displays. The channel mapping is CH1 (Y/R), CH2 (Pb/G), CH3 (Pr/B) and any combination of the three channels can be displayed at one time by separating the channel options with commas.
Jitter Measurement Commands Jitter Measurement Commands The commands in this section allow you to change parameters for the Jitter measurement display. JITter:HPFILter (WFM 601M Only) Selects the high-pass filter frequency for the Jitter measurement display. This setting corresponds to the Jitter HPF selection in the Config Jitter menu.
Jitter Measurement Commands JITter:? (WFM 601M Only) Independently queries the magnitude of the jitter components. The TIMING measurement is the raw jitter and the ALIGNMENT is the jitter remaining after the high-pass filter (JIT:HPFIL). Use the command JIT:UNITS to pick the units of measure. Syntax Arguments Examples Returns JITter:? jit:timing? jit:timing? :JITTER:TIMING 0.
Line Select Commands Line Select Commands The commands in this section allow you to select the part of the video signal you wish to display and measure. Use the command MENU LINESelect (page C–50) to enable the Line Select functions. LINESelect: Table C–10 describes the LINESelect: commands and the argument options associated with each command. These commands correspond to the selections available when you press the LINE SELECT button.
Line Select Commands Examples Returns lines:mode on lines? :LINESELECT:MODE ON;NUMBER 573;SMPL 741;FIELD F2;FMODE TWO;DISPLAY SAMPLE WFM 601A, WFM 601E & WFM 601M User Manual C–43
Position Commands Position Commands The commands in this section allow you to position displays vertically and horizontally on the graticule. POSition:VERTical: POSition:HORZ: The POSition commands correspond to the bezel knobs that position the display vertically and horizontally. POSition:VERTical commands and options are listed in Table C–11. Table C–12 lists the POSition:HORZ (horizontal) commands and options.
Position Commands Table C–11: POSition:VERTical commands and options Remarks WFM | EYe | BOWtie –8188 to +8188 Positions the named display vertically. PIX –3120 to +966 Positions the Picture display vertically. VECtor –500 to +500 Positions the Vector display vertically. LTNG –500 to +500 Positions the Lightning display vertically. ARROWhead –2047 to +2047 Positions the Arrowhead Gamut display vertically.
Preset Commands Preset Commands The commands in this section allow you to select, store, and name parameter presets for the waveform monitor. Use the command UIMENU:PREset (page C–15) to enable the preset functions. PREset:REcall Recalls the Preset stored in the named location. The preset function allows you to store up to ten front panel setups: Nine user defined presets and one factory preset. The factory preset is programmed to assist in calibrating the instrument.
Preset Commands PREset:NAMES: “any string” Sets the name of the specified Preset. The name is limited to ten alphanumeric characters. You can use the 25 pin REMOTE connector on the rear panel to save or recall Presets. The appropriate pin is grounded to select the front panel setup stored in that preset location. Grounding pin 25 with any one of the other preset pins stores the current front panel setup into that selected PRESET location.
Sweep Commands Sweep Commands The commands in this section allow you to manipulate the sweep characteristics of the waveform monitor. SWEEP:TIMING Sets the sweep rate to one line (5 msec/div), two line (10 msec/div), one field, or two fields for displays other than the Parade and Eye displays. This command is equivalent to pressing the LINE/FIELD button on the Front Panel which has four states: ONELINE, TWOLINE, ONEFIELD, and TWOFIELD.
Sweep Commands SWEEP:TIMING When you display more than one channel at a time in the Parade display, the SWEEP:TIMING command toggles between one line (ONEL) and one field (ONEF). In the Eye mode, the argument allows you to toggle between a 1 and 3 ns/div line sweep rate and a field rate sweep. To set the sweep rate for displays other than the Eye or multiple channel Parade displays see SWEEP:TIMING .
System Commands System Commands Using the commands in this section you can make the following changes to the waveform monitor: Select menus needed to change various parameters of the waveform monitor Select an appropriate filter for the Waveform and Parade displays Enable and disable the AFC and ECHO functions, the readout alignment markers, and the internal calibration signal Access the serial number for the waveform monitor MENU
System Commands FILTer Selects a filter setting for the Waveform and Parade displays. Table C–13 describes the options for this command. Syntax Arguments FILTer FILTer? Table C–13: FILTer command options Examples Returns Arguments Remarks FLAT Selects a flat filter (all pass) for the Waveform and Parade displays. DIFF Selects a differentiated step filter for the Waveform and Parade displays.
System Commands Examples Returns afc on afc? :AFC ON PORT:ECHO Enables the echo of remote commands to the controlling device through the remote interface port. Echo should be on when using a monitor program and off when using a test program to send commands and receive data. Syntax Arguments Examples Returns PORT:ECHO PORT[:ECHO]? PORT:echo OFF port:echo? :PORT:ECHO OFF ROTEST Sets the Readout alignment markers ON or OFF.
System Commands SNID? Returns the waveform monitor serial number. Syntax SNID? Arguments None Examples snid? Returns snid? :SNID B0123456 CALSignal:ENable In Waveform display, turns ON/OFF the internal calibrator signal.
System Commands C–54 WFM 601A, WFM 601E & WFM 601M User Manual
Remote Command Processing Code The following code ensures that the waveform monitor does not drop any characters during remote command operations. This procedure expects a character string to send and places to put two types of responses: expected and unexpected. /* * wfmto601.c * * This module contains the processing functions required for a DOS or * Windows based PC to communicate effectively with the WFM601x family of * instruments.
Remote Command Processing Code /* * Module WARNINGS (these warnings indicate bad communications or * invalid requests to the instrument) */ #define W_INVALID_RESP -1 /* Invalid response from instrument #define W_UNEXPEC_RESP -2 /* Unexpected response from instrument /* Local communications port static int comPort; */ */ */ /* * init601Port - Initialize the port to communicate with the WFM601x * * This procedure connects the program to a COM port, attempts to open it, * and initialize communications with
Remote Command Processing Code if ( errCode == A_OK ) { /* Set remote XON/XOFF flow control (void) setop_a1(comPort, 6, 1); return A_OK; } */ break; } /* * Open and close port to reset it, and try to initialize * it again. */ (void)open_a1(comPort, sizeof(ioBuf)/2, sizeof(ioBuf)/2, 0, 0, ioBuf); close_a1 (comPort); } /* * If we can't at least get an OK, the port is either * missing or busy.
Remote Command Processing Code C–58 register char char unsigned int sendChar; recvChar; portStatus; /* Char to send to the instrument /* Char received from the instrument /* Status of the serial port */ */ */ int char isQuery = 0; *baseUnexp; /* Set if portMsg is a query /* The base unexpected response */ */ register int int int libError; iq_size; iSendAttempt; /* Error code returned from library /* Unused return arg required by lib /* Counter to halt pgm after x retries */ */ */ /* Return inv
Remote Command Processing Code /* If no character is present (i.e., no echo response) * then resend the dropped character.
Remote Command Processing Code } /* Break out of this loop and halt the program if * the max number of retries has been exceeded. */ if (iSendAttempt++ > NUMBER_OF_RETRIES) { strcpy(expectedResp, "NADA"); printf("\nUnrelated character returned"); getch(); return libError; } } /* end for(;;) character sending loop /* end while() port message sending loop /* * If this is a query, read the next line. * Wait forever until we get it.
Remote Command Processing Code /* Terminate the string of chars received above *expectedResp = '\0'; */ /* Return an unexpected warning if we got one from the instrument if ( unexpectedResp != baseUnexp ) return W_UNEXPEC_RESP; */ return 0; } WFM 601A, WFM 601E & WFM 601M User Manual C–61
Remote Command Processing Code C–62 WFM 601A, WFM 601E & WFM 601M User Manual
Appendix D: User Service This section describes preventive maintenance for the waveform monitor and how to replace graticule light bulbs. If the waveform monitor does not function properly, send it to a qualified service personnel or contact Tektronix for service. Cleaning or Replacing the Fan Filter To ensure adequate air flow, clean or replace the rear-panel fan filter regularly. The interval between filter cleaning or replacement is determined by the operating environment.
Appendix D: User Service Graticule Light Replacement The graticule is illuminated by small light bulbs located under the bezel that surrounds the CRT. You or a service person can replace these bulbs if they burn out. The Accessories kit shipped with your waveform monitor contain several replacement bulbs. Additional bulbs can be purchased from Tektronix or from local electronics distribution sources.
Appendix D: User Service CAUTION. Needle-nosed pliers are not recommended in the following step, as they are more likely to break a bulb. 4. To remove a bulb, position the tweezer tips on the thin, flat portion of the bulb (close to the plastic socket). Carefully pull the bulb straight out. 5. To install a new bulb, hold it with the tweezers on the flat portion, align the bulb leads with the socket, and push the bulb in until it snaps into place. 6.
Appendix D: User Service 3. Insert a small, straight-blade screwdriver into the recessed area on the right or left side of the panel. Pry gently until the panel snaps out of the frontpanel frame. See D–1 for panel and recess location. 4. Remove the two Torx screws that fasten the bezel to the waveform monitor. 5. Grasp the bottom of the bezel and pull out and upward to remove the bezel from the instrument. Two hinges at the top of the bezel hold it in place.
Glossary
Glossary Accuracy The closeness of the indicated value to the true value. Bandwidth The range of frequencies over which signal amplitude remains constant (within some limit) as it is passed through a system. Baseband Refers to the composite video signal as it exists before modulating the picture carrier. Composite video distributed throughout a studio and used for recording is at baseband. Bowtie Display A display used to assess relative timing and gain through a three-channel component system.
Glossary Diamond Display A simplified vector display for RGB signals that defines the valid gamut limits in the form of two diamonds. Distortion See harmonic distortion. EDH Error detection and handling. Supports the standard SMPTE RP-165, which proposes a technique for recognizing inaccuracies in the serial digital signal. Frame Contains all the information required for a complete picture. For interlaced scan systems, there are two fields in a frame.
Glossary Linear Distortion Refers to distortions which are independent of signal amplitude. Lissajous figure An X–Y plot in which the signals applied to both axes are sinusoidal functions. For a stable display the signals must be harmonics. Lissajous figures are useful for determining phase and harmonic relationships. LSB Least Significant Bit. The lowest weighted bit or signal line. Luminance The signal (Y) which represents brightness or the amount of light in the picture.
Glossary tion system. These are the three color signals generated by the camera and used by the picture monitor to produce a picture. R–Y One of the color difference signals obtained by subtracting luminance (Y) from the red camera signal. Saturation The property of color which relates to the amount of white light in the color. Highly saturated colors are vivid, while less saturated colors have more white mixed in and, therefore, appear pastel.
Index
Index A Aberrations, serial channel measurements, 3–23 Accessories, 1–2 optional accessories, 1–3 Options, 1–3 standard (included), 1–2 Accuracy, Glossary–1 Active PIC CRC Error, in Configure SER ALARM menu, 3–11 AFC, synchronization selection, 3–11 Air filter, part number, 1–2 ALARM, 2–4 Alarm based on serial format checks, 3–44 Gamut alarm, 3–33 ALARM DISP, in Configure GAMUT menu, 3–10 Amplitude, serial channel measurements, 3–22 Analog Audio, see Audio, 3–1 ANC Checksum, Serial format checks, 3–49 ANC P
Index Remote, B–1 RS232, B–1 Connectors, rear panel, 2–6 Coprocessor code version, determining software version, 3–12 CRC use in AP CRC measurements, 3–51 use in EDH measurements, 3–50 CRC value, in Serial format screen, 3–46 Cross hair cursor, on picture monitor output, 3–39 CRT filter part number, 1–2 filter replacement, D–3 setting intensity, 3–12 Cursor Menu, 3–13 Cursors, 3–13 Both selection, 3–13 data cursor correlated, 3–39 on MON OUT video, 3–39 on picture monitor output, 3–39 timing, 3–13 timing C
Index jitter measurement, 3–26 measurements, 3–22 Overlay trigger mode, 3–20 rise time actual, 3–25 rise time measurement, 3–24 Trigger Modes, 3–20 vertical gain, 3–21 word correlated behavior, 3–27 F F1 AP CRC Value, Serial format selection, 3–46 F2 AP CRC Value, Serial format selection, 3–46 Fan, filter part number, 1–2 Fan filter, cleaning or replacing, D–1 Features, product features, 1–1 FF CRC ERR SEC, Serial format selection, 3–46 Field selecting, 3–39 selecting one or two for display, 3–52 Field Le
Index Gamut Alarm, 3–33 Gamut Check, in Configure GAMUT menu, 3–10 Gamut display, 3–29 Arrowhead Display, 3–31 checking RGB gamut, 3–30 composite Arrowhead Display, 3–31 configure menu, 3–10 Diamond Display, 3–29 in Functional Check, 1–23 setting Gamut alarms, 3–33 Glossary, Glossary–1 Graticule 2T Pulse to Bar measurement, 3–36 Arrowhead NTSC and PAL, 3–31 Audio display, 3–4 for Vector Display, 3–54 horizontal scale, 3–36 internal, 3–34 K-factor measurement, 3–35 K-factor setup for measurement, 3–35 light
Index M MAG, using with Timing Cursors, 3–13 Magnified, Sweep, 2–4 Manual, Service part number, 1–3 Manuals, related, xi Markers, using, 3–13 Measurement amplitude with Vector Display, 3–54 cable commands, C–3 cable length, 3–49 cable length for firmware V1.
Index Option A5, 1–3 options, 1–3 Power, connecting, 1–11 PR to Y Timing, 3–57 Preset, renaming, 3–43 Preset Menu, 3–43 Recall, 3–43 Recover, 3–43 Rename, 3–43 Return, 3–43 Store, 3–43 Procedure, Functional Check, 1–17 Product Description, 1–1 R Rack Adaptor, 1–9 Readout in Configure JITTER menu, 3–10 setting brightness, 3–12 Rear panel connectors, 2–6 Jitter Out, 2–7 loop-through inputs, 2–7 MON OUT (Y/G - PB/B - PR/R), 2–7 multi-pin connectors, 2–7 outputs, 2–7 power connector, 2–6 Remote, 2–7 RS-232 co
Index SLM:LEVEL?, C–5 SLM:RCVR, C–4 SLM:SOURCE?, C–4 SWEEP:MAG, C–49 SWEEP:TIMING, C–48 User Interface menu commands, C–14 Variable GAIN state for Lightning display, C–37 Variable GAIN state for the WFM and VEC displays, C–36 Variable GAIN value for the Lightning display, C–37 Variable GAIN value for WFM and VEC displays, C–36 VECtor:BARS, C–10 VECtor:GRAT, C–11 Voltage and timing cursor positioning, C–18 Voltage and timing cursor tracking, C–19 Remote operation, B–1 Rename, Preset function, 3–43 Renaming,
Index Signal receiver power level, 3–49 source signal level, 3–49 Signal Present, Serial format selection, 3–46 Software Version Number, 3–12 Specifications, A–1 Certifications and Compliances, A–11 Electrical Specifications, A–1 Environmental Characteristics, A–9 Physical Characteristics, A–9 Safety Certification Compliance, A–10 Safety Standards, A–10 STANDARD, Format configure menu, 3–11 Standard (NTSC/PAL), Glossary–3 Standard accessories, 1–2 Standby mode, 1–11 Status, automated serial format, 3–44 St
Index horizontal scale, 3–36 vertical scale, 3–34 WFM AS, in Configure WFM/VEC menu, 3–9 WFM/VEC, configure menu, 3–9 Word correlated behavior, serial channel measurements, 3–27 WFM 601A, WFM 601E & WFM 601M User Manual Word rate trigger, 3–21 Y YPbPr Parade, 3–41 Index–9
Index Index–10 WFM 601A, WFM 601E & WFM 601M User Manual
