Errata Title & Document Type: 16500B/16501A Logic Analysis System Service Guide Manual Part Number: 16500-97011 Revision Date: August 1994 HP References in this Manual This manual may contain references to HP or Hewlett-Packard. Please note that HewlettPackard's former test and measurement, semiconductor products and chemical analysis businesses are now part of Agilent Technologies. We have made no changes to this manual copy. The HP XXXX referred to in this document is now the Agilent XXXX.
Service Guide Publication number 16500-97011 First edition, August 1994 For Safety information, Warranties, and Regulatory information, see the pages at the end of the book. Copyright Hewlett-Packard Company 1987 – 1994 All Rights Reserved.
HP 16500B/16501A Logic Analysis System The HP 16500B is the mainframe of the Logic Analysis System, and the HP 16501A is the expansion frame. The HP 16500B/16501A is of modular structure using plug-in cards with a wide range of data acquisition and stimulus capabilities.
The HP 16500B Logic Analysis System iii
In This Book This book is the service guide for the HP 16500B/16501A Logic Analysis System and is divided into eight chapters. Chapter 1 contains information about the instrument and includes accessories for the instrument, specifications and characteristics of the instrument, and a list of the equipment required for servicing the instrument. Chapter 2 tells how to prepare the instrument for use. Chapter 3 gives instructions on how to test the performance of the instrument.
Contents 1 General Information Accessories 1–2 Specifications 1–3 Characteristics 1–3 Recommended Test Equipment 1–6 2 Preparing for Use To inspect the logic analysis system 2–2 To apply power 2–3 To operate the user interface 2–3 To set the line voltage 2–4 To degauss the display 2–5 To clean the logic analysis system 2–5 To test the logic analysis system 2–5 To install modules 2–6 To install the HP 16500L interface module 2–7 To connect the HP 16501A Expansion Frame 2–9 To connect an external monitor 2–
Contents 6 Replacing Assemblies To remove and replace the Optional modules or filler panels 6–3 Covers 6–4 Flexible disk drive 6–5 Power supply 6–6 Rear fan 6–8 Side fan 6–9 HP 16500L interface module 6–10 Hard disk drive 6–12 Microprocessor board (CPU) 6–13 SIMM memory 6–14 Expansion interface board 6–15 Mother board 6–16 Front-panel board 6–18 Color display assembly 6–19 To return assemblies 6–22 7 Replaceable Parts Replaceable Parts Ordering 7–2 Replaceable Parts List Description 7–3 HP 16500B Exploded
1 Accessories 1–2 Specifications 1–3 Characteristics 1–3 Recommended Test Equipment 1–6 General Information
General Information This chapter lists the accessories, the specifications and characteristics, and the recommended test equipment. Accessories The following accessories are supplied with the HP 16500B/16501A Logic Analysis System.
General Information Specifications Specifications The specifications are the performance standards against which the product is tested. There are no specifications for the HP 16500B or the HP 16501A. Characteristics These characteristics are not specifications, but are included as additional information. The following characteristics are typical for the HP 16500B/16501A system. Hard Disk Drive Capacity 86 Mbyte unformatted; Formatted as a Microsoft DOS disk drive IDE Interface Bus.
General Information Characteristics Time Interval Accuracy Between Modules Equals the sum of the channel-to-channel time interval accuracies of each module used in the measurement, for a deskewed measurement. Time Correlation Resolution 2 ns (500 MHz). Operating Environment Temperature Instrument 0 °C to 50 °C (+32 °F to 122 °F). Disk Media 10 °C to 40 °C (+50 °F to 104 °F). Probes and Cables 0 °C to 65 °C (+32 °F to 149 °F). Humidity Instrument up to 95% relative humidity at 40 °C (104 °F).
General Information Characteristics Dimensions Refer to the following figure for dimensional detail.
General Information Recommended Test Equipment Recommended Test Equipment Equipment Required Equipment Critical Specifications Oscilloscope Voltmeter RS-232C Loopback Connector 100 MHz Bandwidth *A = Adjustment 1–6 P = Performance Tests T = Troubleshooting Recommended Model/Part HP 54600A HP 3478A HP Part Number 01650-63202 Use* T T T
2 To inspect the logic analysis system 2–2 To apply power 2–3 To operate the user interface 2–3 To set the line voltage 2–4 To degauss the display 2–5 To clean the logic analysis system 2–5 To test the logic analysis system 2–5 To install modules 2–6 To install the HP 16500L interface module 2–7 To connect the HP 16501A Expansion Frame 2–9 To connect an external monitor 2–10 Preparing for Use
Preparing For Use This chapter gives you instructions for preparing the logic analysis system for use. Power Requirements The logic analysis system mainframe requires a power source of either 115 Vac or 230 Vac, –22 % to +10 %, single phase, 48 to 66 Hz, 475 W maximum power. The logic analysis system expansion frame requires a power source of either 115 Vac or 230 Vac, –22 % to +10 %, single phase, 48 to 66 Hz, 420 W maximum power. Operating Environment The operating environment is listed in chapter 1.
Preparing for Use To apply power 2 Check the supplied accessories. Accessories supplied with the logic analysis system are listed in "Accessories" in chapter 1. 3 Inspect the product for physical damage. Check the logic analysis system and the supplied accessories for obvious physical or mechanical defects. If you find any defects, contact your nearest Hewlett-Packard Sales Office. Arrangements for repair or replacement are made, at Hewlett-Packard’s option, without waiting for a claim settlement.
Preparing for Use To set the line voltage To set the line voltage When shipped from HP, the line voltage selector is set and an appropriate fuse is installed for operating the instrument in the country of destination. To operate the instrument from a power source other than the one set, perform the following steps. 1 Turn the front panel power switch to the STBY position, then turn the power switch 2 3 4 5 to the Off position. Remove the power cord from the instrument.
Preparing for Use To degauss the display To degauss the display • If the mainframe has been subjected to strong magnetic fields, the CRT might become magnetized and display data might become distorted. To correct this condition, degauss the CRT with a conventional, external-television-type degaussing coil. To clean the logic analysis system • With the instrument turned off and unplugged, use mild soap and water to clean the front and cabinet of the system. Harsh soap might damage the water-base paint.
Preparing for Use To install modules To install modules The following steps give general instructions for installing modules into the mainframe or the expansion frame of the system. CAUTION Electrostatic discharge can damage electronic components. Use grounded wriststraps and mats when performing any service to modules. 1 Turn off the frame power switch, then unplug the power cord. Disconnect any input or output connections. 2 Plan your module configuration.
Preparing for Use To install the HP 16500L interface module To install the HP 16500L interface module The HP 16500L interface module is required to connect the HP 16501A Expansion Frame to the HP 16500B mainframe. WARNING CAUTION Hazardous voltages exist on the power supply, the CRT, and the CRT driver board of the HP 16500B mainframe. To avoid electrical shock, disconnect the power from the instrument before performing the following procedures.
Preparing for Use To install the HP 16500L interface module 5 Slide the interface module into the mainframe through the slot in the rear panel. 6 Install the screws connecting the interface module to the mainframe. Two screws through the top of the interface module connect it to the sheetmetal plate, and four screws through the rear plate of the interface module connect it to the rear panel of the mainframe. 7 Connect the end of the 40-pin CRT cable to the interface module.
Preparing for Use To connect the HP 16501A Expansion Frame To connect the HP 16501A Expansion Frame The HP 16501A Expansion Frame includes an interface cable and requires an HP 16500L interface module to connect to the HP 16500B mainframe. To install the expansion frame, you need to install the interface module into the mainframe, then connect the cable from the module to the expansion frame. CAUTION Electrostatic discharge can damage electronic components.
Preparing for Use To connect an external monitor To connect an external monitor The following tables define the signal available for external monitors at the HP 16500L connector and pin numbers. HP 16500L Output Signal For External Monitors Horizontal deflection (fh) 25.0 kHz Vertical deflection (fv) 59.95 Hz Resolution 576 x 368 x dots x lines (WxH) RGB video 0.714 VP-P, positive Impedance 75 ohm , analog External Sync Signal H TTL, negative 3.
3 To perform the power-up tests 3–3 To perform the self-tests 3–4 Testing Performance
Testing Performance To ensure the logic analysis system is operating correctly, you can perform software tests (self-tests) on the system. Directions for performing the software tests are given in this chapter. This chapter normally tells you how to test the performance of the logic analysis system against the specifications listed in chapter 1. Because there are no specifications for the HP 16500B/16501A, there are no performance verification tests.
Testing Performance To perform the power-up tests To perform the power-up tests The logic analysis system automatically performs power-up tests when you apply power to the instrument. The revision number of the boot ROM shows in the upper-right corner of the screen during these power-up tests. As each test completes, either "passed" or "failed" prints on the screen in front of the name of each test. 1 Disconnect all inputs, then insert a formatted disk into the flexible disk drive.
Testing Performance To perform the self-tests To perform the self-tests The self-tests verify the correct operation of the logic analysis system. Self-tests can be performed all at once or one at a time. While testing the performance of the logic analysis system, run the self-tests all at once. 1 If you just did the power-up self-tests, go to step 2. If you did not just do the power-up self-tests, disconnect all inputs, then turn on the power switch. Wait until the power-up tests are complete.
Testing Performance To perform the self-tests 5 Install a formatted disk that is not write protected into the flexible disk drive. Connect an RS-232C loopback connector onto the RS-232C port. 6 Select All System Tests. You can run all tests at one time by running All System Tests. To see more details about each test, you can run each test individually. This step shows how to run all tests at once. The status of the tests will change from Untested to Passed or Failed.
3–6
4 To prepare the instrument 4–3 To access the test patterns 4–4 To adjust geometry 4–5 To adjust focus, landing, and convergence 4–6 To adjust white balance 4–13 Calibrating and Adjusting
Calibrating and Adjusting This chapter normally gives you instructions for calibrating and adjusting the logic analysis system. Because the HP 16500B/16501A requires no calibration, only adjustment instructions are included. Adjustments The only adjustments to the logic analysis system are adjustments to the color CRT monitor assembly. Use the following procedures to adjust the CRT module to compensate for magnetic influences causing misconvergence.
Calibrating and Adjusting To prepare the instrument To prepare the instrument 1 Remove the rear feet and the covers from the mainframe. 2 Before starting the adjustments, mark the position where the potentiometers are set. This helps in returning the adjustments to their original positions if it becomes necessary to restart the procedure. 3 During any of the following CRT adjustments, the CRT module must face west. 4 Use the following chart to guide you with the CRT adjustment procedure.
Calibrating and Adjusting To access the test patterns To access the test patterns Some procedures on the following pages ask you to access test patterns. This procedure tells you how to access them and how to exit the test. 1 In the System Configuration menu, touch Configuration, then select Test in the pop-up menu. 2 Touch the field near the center of the screen to load the Test System. 3 In the Test System Configuration menu, touch Test System, then select Mainframe Test in the pop-up menu.
Calibrating and Adjusting To adjust geometry To adjust geometry 1 Display the white cross-hatch test pattern on the CRT. From the Color Display Test menu, select the white, cross-hatch pattern. 2 Preset the front panel brightness control, the top of the two controls to the left of the display, maximum clockwise. 3 Preset the front panel contrast control, the bottom of the two controls to the left of the display, to the mechanical center. 4 Preset H.SUB SHIFT (RV006) and V.
Calibrating and Adjusting To adjust focus, landing, and convergence To adjust focus, landing, and convergence Once you have started, you will have to do all three of the procedures in this group: the focus, the landing, and the convergence adjustments. Initial Preparation 1 Loosen the deflection yoke clamp screw. 2 Remove the rear and side fans. Refer to chapter 6, "Replacing Assemblies." Focus Adjustment Geometry adjustments must be performed before making the focus adjustment.
Calibrating and Adjusting To adjust focus, landing, and convergence Landing Adjustment 1 Turn the front panel BRIGHTNESS control fully clockwise. 2 Degauss the CRT by momentarily pressing the DEGAUSS switch located on the instrument rear panel. In some cases, the user’s environment or shipping environment may have caused high levels of magnetization in the CRT. In this case, to completely degauss the CRT you may need to use a conventional television-type degaussing coil.
Calibrating and Adjusting To adjust focus, landing, and convergence 8 Move the deflection yoke forward until the entire raster is green. Landing adjustment is easier if the yoke is moved all the way forward and then moved back until the raster is completely green. 9 Using the Color Purity key, replace the green raster with red and then blue raster, each time checking for proper landing adjustment (color purity of each).
Calibrating and Adjusting To adjust focus, landing, and convergence Static Convergence 1 Temporarily disconnect the power from the instrument. 2 Remove the PC board shield cover from the rear of the Color CRT Module by prying evenly on all four sides. 3 Reapply power. 4 Display the white, cross-hatch test pattern on the CRT. From the Color Display Test menu, select the white, cross-hatch pattern.
Calibrating and Adjusting To adjust focus, landing, and convergence Dynamic Convergence 1 Display the white, cross-hatch test pattern on the CRT. From the Color Display Test menu, select the white, cross-hatch test pattern. 2 Adjust Y BOW (RV805) located on the bottom PC board to eliminate red, green, and blue bowing at the top and bottom of the center vertical line.
Calibrating and Adjusting To adjust focus, landing, and convergence 4 Adjust V TOP (RV801) and V BOTTOM (RV802) to obtain coincidence of the red, blue, and green at the intersection of the top and bottom horizontal lines with the center vertical line. The VTOP and VBOTTOM adjustments are located on the bottom PC board. Use the next two figures for V TOP and V BOTTOM respectively.
Calibrating and Adjusting To adjust focus, landing, and convergence 5 Adjust H.AMP (RV807) located on the bottom PC board for equal amounts of misconvergence at the right and left sides of the screen. 6 Adjust H.TILT (RV806) located on the bottom PC board for coincidence of red, green, and blue at the right and left sides of the screen. 7 If you are finished with the CRT adjustments, replace the fans.
Calibrating and Adjusting To adjust white balance To adjust white balance 1 Provide a blank display on the CRT. From the Color Display Test menu, select a blank (colorless) raster. 2 Preset the front panel brightness and contrast controls to their mechanical centers. 3 On the bottom PC board, set the following adjustments to their mechanical centers. • SUB BRT (RV901) • SUB CONT (RV902) 4 On the bottom PC board, set the following adjustments to their mechanical centers. • G. DRIVE (RV921) • B.
4–14
5 To use the flowcharts 5–2 To check the power-up self-tests 5–18 To run the self-tests 5–19 To check the video signals 5–22 To check the power supply LEDs 5–23 To test the power supply voltages 5–24 To test the flexible disk drive voltages 5–25 To test the hard disk drive voltages 5–27 To test the expansion frame interface 5–29 Troubleshooting
Troubleshooting This chapter helps you troubleshoot the logic analysis system to find defective assemblies. The troubleshooting consists of flowcharts, self-test instructions, and tests. This information is not intended for component-level repair. If you suspect a problem, start at the top of the first flowchart. During the troubleshooting instructions, the flowcharts will direct you to perform other tests. The other tests are located in this chapter after the flowcharts.
Troubleshooting To use the flowcharts Main Troubleshooting Flowchart 1 5–3
Troubleshooting To use the flowcharts Note: The HP 16500L is in the System Configuration menu if "Master Frame" is in a blue field and "Ethernet" is in the Communications field.
Troubleshooting To use the flowcharts Color Module Troubleshooting Flowchart 3 5–5
Troubleshooting To use the flowcharts Color Module Troubleshooting Flowchart 3A (continued) 5–6
Troubleshooting To use the flowcharts Power-Up Troubleshooting Flowchart 4 5–7
Troubleshooting To use the flowcharts System Start Troubleshooting Flowchart 5 5–8
Troubleshooting To use the flowcharts Mainframe Tests Troubleshooting Flowchart 6 5–9
Troubleshooting To use the flowcharts Power Supply Troubleshooting Flowchart 7 5–10
Troubleshooting To use the flowcharts HIL Troubleshooting Flowchart 8 5–11
Troubleshooting To use the flowcharts Flexible Disk Drive Troubleshooting Flowchart 9 5–12
Troubleshooting To use the flowcharts Hard Disk Drive Troubleshooting Flowchart 10 5–13
Troubleshooting To use the flowcharts RS-232C Troubleshooting Flowchart 11 5–14
Troubleshooting To use the flowcharts Intermodule Troubleshooting Flowchart 12 5–15
Troubleshooting To use the flowcharts Expansion Frame Troubleshooting Flowchart 13 5–16
Troubleshooting To use the flowcharts Note: Compare the specifications of the monitor against the specifications of the video signal as a way to determine compatibility (ability to synch). Video signal specifications are listed in "To connect an external monitor" in chapter 2.
Troubleshooting To check the power-up self-tests To check the power-up self-tests The logic analysis system automatically performs power-up self-tests when you apply power to the instrument. The revision number of the operating system shows in the upper-right corner of the screen during these power-up tests. As each test completes, either "passed" or "failed" appears on the screen in front of the name of each test. 1 Disconnect all inputs, then insert a formatted disk into the flexible disk drive.
Troubleshooting To run the self-tests To run the self-tests Self-tests identify the correct operation of major, functional subsystems of the instrument. You can run all self-tests without accessing the interior of the instrument. If a self-test fails, the troubleshooting flowcharts instruct you to change a part of the instrument. 1 If you just did the power-up self-tests, go to step 2. If you did not just do the power-up self-tests, disconnect all inputs, then turn on the power switch.
Troubleshooting To run the self-tests 5 Select ROM Test. The ROM Test screen is displayed. You can run all tests at one time by running All System Tests. To see more details about each test, you can run each test individually. This example shows how to run an individual test. 6 Select Run, then select Single. To run a test continuously, select Repetitive. Select Stop to halt a repetitive test. For a Single run, the test runs one time, and the screen shows the results.
Troubleshooting To run the self-tests 7 To exit the ROM Test, select Done. Note that the status changes to Passed or Failed. 8 Install a formatted disk that is not write-protected into the flexible disk drive. Connect an RS-232C loopback connector onto the RS-232C port. Run the remaining All System Tests in the same manner. The Color Display Test is not part of this troubleshooting. The Color Display Test is used in chapter 4, "Calibrating and Adjusting," to adjust the color display.
Troubleshooting To check the video signals To check the video signals Refer to chapter 6, "Replacing Assemblies," for instructions on how to remove or replace covers and assemblies. WARNING Hazard voltages exist on the power supply, the CRT, and the CRT driver board. This procedure is to be performed by service-trained personnel aware of the hazards involved, such as fire and electrical shock. 1 Turn off the instrument, then remove the bottom cover.
Troubleshooting To check the power supply LEDs To check the power supply LEDs Refer to chapter 6, "Replacing Assemblies," for instructions to remove or replace covers and assemblies. Hazard voltages exist on the power supply, the CRT, and the CRT driver board. This procedure is to be performed by service-trained personnel aware of the hazards involved, such as fire and electrical shock. WARNING 1 2 3 4 Turn off the instrument, then remove the top cover. Apply power to the instrument.
Troubleshooting To check the power supply voltages To check the power supply voltages Refer to chapter 6, "Replacing Assemblies," for instructions to remove or replace covers and assemblies. Hazard voltages exist on the power supply, the CRT, and the CRT driver board. This procedure is to be performed by service-trained personnel aware of the hazards involved, such as fire and electrical shock. WARNING 1 2 3 4 Turn off the instrument, disconnect the power cord, then remove the top cover.
Troubleshooting To test the flexible disk drive voltages To test the flexible disk drive voltages Refer to chapter 6, "Replacing Assemblies," for instructions to remove or replace covers and assemblies. WARNING Hazard voltages exist on the power supply, the CRT, and the CRT driver board. This procedure is to be performed by service-trained personnel aware of the hazards involved, such as fire and electrical shock.
Troubleshooting To test the flexible disk drive voltages 5 Check for the following voltages and signals using an oscilloscope.
Troubleshooting To test the hard disk drive voltages To test the hard disk drive voltages Refer to chapter 6, "Replacing Assemblies," for instructions to remove or replace covers and assemblies. WARNING Hazard voltages exist on the power supply, the CRT, and the CRT driver board. This procedure is to be performed by service-trained personnel aware of the hazards involved, such as fire and electrical shock.
Troubleshooting To test the hard disk drive voltages Disk Drive Voltages Pin Signal Description Pin Signal Description Pin Signal Description 1 Reset 15 Data 29 +5 V 2 Ground 16 Data 30 Ground 3 Data 17 Data 31 Interrupt Request 4 Data 18 Data 32 NC 5 Data 19 Ground 33 Address 6 Data 20 (connector key pin) 34 NC 7 Data 21 NC 35 Address 8 Data 22 Ground 36 Address 9 Data 23 Write Strobe 37 Register Select 10 Data 24 Ground 38 Register Select
Troubleshooting To test the expansion frame interface To test the expansion frame interface This procedure is used during troubleshooting to isolate a failed interface component, the interface cable, the expansion frame interface card, or the HP 16500L. The Option Board Test in the performance verification software generates bit patterns across the data, address, and strobe lines of the interface.
Troubleshooting To test the expansion frame interface Test the Expansion Interface Card 1 Ground the oscilloscope probe to the metal portion of the frame near the rear panel of the expansion frame and check for TTL activity on the following pins. • U7 pins 11 through 18 • U8 pins 2 through 9 • U9 pins 5 through 9 If there is TTL activity on all of the pins indicated, then the signal paths from the mainframe CPU board and the end of the expansion frame interface card are considered working.
Troubleshooting To test the expansion frame interface 3 Remove the probe ground from the frame, and reattach the probe ground to the metal portion of the expansion frame near the front panel. 4 Probe the following pins. • U1 pins 2 through 9 • U2 pins 2 through 9 • U3 pins 5 through 9 If all of the signal lines show TTL activity, then go to the next step. If one or more of the signal lines do not show TTL activity, then replace the expansion frame interface board.
Troubleshooting To test the expansion frame interface Test the Mainframe CPU Board 1 Remove power from the HP 16500B system and unplug the power cords from both the mainframe and the expansion frame. 2 Reinstall the bottom cover on the expansion frame. Set the mainframe on its side 3 4 5 6 with the strap handle facing up, then remove the bottom cover. Plug the power cords into both the mainframe and expansion frame, then apply power. In the System Configuration menu, select Configuration.
6 To remove and replace the Optional modules or filler panels 6-3 Covers 6–4 Flexible disk drive 6–5 Power supply 6–6 Rear fan 6–8 Side fan 6–9 HP 16500L interface module 6–10 Hard disk drive 6–12 Microprocessor board (CPU) 6–13 SIMM memory module 6–14 Expansion interface board 6–15 Mother board 6–16 Front-Panel board 6–18 Color display assembly 6–19 To return assemblies 6–22 Replacing Assemblies
Replacing Assemblies This chapter contains the instructions for removing and replacing the assemblies of the logic analysis system. Also in this chapter are instructions for returning assemblies. WARNING CAUTION Hazardous voltages exist on the power supply, the CRT, and the CRT driver board. To avoid electrical shock, disconnect the power from the instrument before performing the following procedures.
Replacing Assemblies To remove and replace optional modules or filler panels To remove and replace optional modules or filler panels 1 To reconfigure your system later in this procedure, note the configuration of your system. Some modules for the Logic Analysis System require calibration if you move them to a different slot. 2 Starting from the top, loosen the thumb screws on filler panels and cards in the mainframe or the expansion frame. Starting from the top, pull the cards and filler panels out.
Replacing Assemblies To remove and replace the covers To remove and replace the covers There are four outside covers on the HP 16500B and on the HP 16501A, a top cover, a bottom cover, and two side covers. When removing the covers, note where the shielding braid is located. If the shielding braid separates from the covers, reinstall it when replacing the covers. The shielding braid helps the instrument meet EMI (electromagnetic interference) specifications. 1 Remove the four rear feet.
Replacing Assemblies To remove and replace the flexible disk drive To remove and replace the flexible disk drive HP 16500B 1 Using previous procedures, remove the following assemblies: • Top cover 2 Remove the two disk drive mounting screws. 3 Slide the flexible disk drive assembly toward the rear panel until the assembly is out of the instrument. 4 Disconnect the control cable for the disk drive. 5 Remove the mounting bracket from the bottom of the assembly.
Replacing Assemblies To remove and replace the power supply To remove and replace the power supply Hazardous voltages exist on the power supply. To avoid electrical shock, disconnect the power from the instrument before performing the following procedures. After disconnecting the power, wait at least six minutes for the capacitors on the power supply board to discharge before servicing the instrument.
Replacing Assemblies To remove and replace the power supply 6–7
Replacing Assemblies To remove and replace the rear fan To remove and replace the rear fan HP 16500B and HP 16501A 1 Using previous procedures, remove the following assemblies: • Top cover 2 3 4 5 6 Remove the rear fan shroud mounting screws. Remove the complete rear fan assembly from the rear panel of the instrument. Disconnect the rear fan power cable. Remove the rear fan mounting screws and remove the fan from the fan shroud. Reverse this procedure to install the replacement rear fan.
Replacing Assemblies To remove and replace the side fan To remove and replace the side fan HP 16500B and HP 16501A 1 Using previous procedures, remove the following assemblies: • Top cover and side cover 2 Remove the four side fan mounting screws. 3 Reach through the top of the instrument and disconnect the fan power cable, then remove the fan. 4 Reverse this procedure to install the replacement side fan.
Replacing Assemblies To remove and replace the HP 16500L interface module To remove and replace the HP 16500L interface module HP 16500B and HP 16500L 1 Using previous procedures, remove the following assemblies: • Top cover 2 If your system includes an expansion frame, disconnect the interface cable from the 3 4 5 6 HP 16500L interface module by pressing the release tabs on either side of the cable connector while pulling the connector away from the card.
Replacing Assemblies To remove and replace the HP 16500L interface module 7 If your system includes an expansion frame, connect the interface cable from the expansion frame to the HP 16500L interface module located in the HP 16500B mainframe. In order to ensure correct connection of the interface cable, the 68-pin "D" connectors on the cable are asymmetric in shape. They only fit into the ports on the cards when oriented to match the shape of the ports.
Replacing Assemblies To remove and replace the hard disk drive To remove and replace the hard disk drive HP 16500B 1 Using previous procedures, remove the following assemblies: • Top and bottom covers • HP 16500L interface module 2 Reaching in from the top of the instrument, remove the four screws connecting the hard disk drive to the bracket. 3 Reaching in from the bottom of the instrument, remove the hard disk drive. 4 Disconnect the two cables from the hard disk drive to the CPU board.
Replacing Assemblies To remove and replace the microprocessor board (CPU) To remove and replace the microprocessor board (CPU) HP 16500B 1 Using previous procedures, remove the following assemblies: • Top cover and left, rear foot • All optional modules and filler panels 2 3 4 5 Disconnect the cables from the microprocessor board. Remove the two screws connecting the microprocessor to the rear panel. Carefully slide the microprocessor board out of the mainframe.
Replacing Assemblies To remove and replace a SIMM memory To remove and replace a SIMM memory HP 16500B 1 Using previous procedures, remove the following assemblies: • Microprocessor (CPU) board 2 Hold the release tabs away from the SIMM (single inline memory module), then pull the module out. 3 Reverse this procedure to install the replacement SIMM. Slide the SIMM module into the connector at an angle, then push it down parallel to the microprocessor board.
Replacing Assemblies To remove and replace the expansion interface board To remove and replace the expansion interface board HP 16501A 1 Using previous procedures, remove the following assemblies: • Bottom cover • All optional modules and filler panels 2 Disconnect the interface cable by pressing the release tabs on either side of the 3 4 5 6 cable connector while pulling the cable connector away from the board. Disconnect the two cables on the expansion interface board.
Replacing Assemblies To remove and replace the mother board To remove and replace the mother board HP 16500B 1 Using previous procedures, remove the following assemblies: • • • • Top and bottom covers Power supply Microprocessor board All optional modules and filler panels 2 Set the frame so that the bottom of the frame is facing up. This is to gain access to the fan power cable and the front-panel cable. 3 Disconnect the fan power cable and the front-panel cable from the mother board.
Replacing Assemblies To remove and replace the mother board 6–17
Replacing Assemblies To remove and replace the front-panel board To remove and replace the front-panel board HP 16500B 1 Remove the top trim from the front frame. 2 Disconnect the two cables from the front-panel board. One cable is connected to the color display assembly and one cable is connected to the mother board. 3 Remove the screws connecting the front-panel assembly to the top and bottom of the frame.
Replacing Assemblies To remove and replace the color display assembly To remove and replace the color display assembly HP 16500B The color display assembly replacement procedure consists of three sections: Removing the assembly from the mainframe. Transferring parts to the replacement assembly. Installing the assembly in the mainframe.
Replacing Assemblies To remove and replace the color display assembly Transferring parts to the replacement assembly The purpose of this procedure is to transfer the mechanical parts from the old assembly to the replacement assembly. 1 Remove the rear mounting bracket from the rear support bracket. Remove the rear support bracket from the color display assembly. 2 Attach the rear support bracket to the replacement assembly, using the two 3 4 5 6 thread-forming screws. Do not overtighten.
Replacing Assemblies To remove and replace the color display assembly Installing the replacement color display assembly 1 Carefully slide the color display assembly most of the way into the mainframe. To prevent damage to the cables, make sure that they clear the mainframe. 2 Connect the color display to power supply cable to the power supply. Slide the 3 4 5 6 7 8 display assembly completely into the mainframe.
Replacing Assemblies To return assemblies To return assemblies Before shipping the logic analysis system or assemblies to Hewlett-Packard, contact your nearest Hewlett-Packard sales office for additional details. 1 Write the following information on a tag and attach it to the part to be returned. • • • • Name and address of owner Model number Serial number Description of service required or failure indications 2 Remove accessories from the logic analysis system.
7 Replaceable Parts Ordering 7–2 Replaceable Parts List 7–3 HP 16500B Exploded View and Replaceable Parts 7–4 HP 16501A Exploded View and Replaceable Parts 7–9 Replaceable Parts
Replaceable Parts This chapter contains information for identifying and ordering replaceable parts for your logic analysis system. Replaceable Parts Ordering Parts listed To order a part on the list of replaceable parts, quote the Hewlett-Packard part number, indicate the quantity desired, and address the order to the nearest Hewlett-Packard Sales Office.
Replaceable Parts Replaceable Parts List Description Replaceable Parts List Description The replaceable parts list is organized by reference designation. The exploded view does not show all of the parts in the replaceable parts list.
Replaceable Parts HP 16500B Exploded View and Replaceable Parts HP 16500B Exploded View and Replaceable Parts Exploded view of the HP 16500B External Parts 7–4
Replaceable Parts HP 16500B Exploded View and Replaceable Parts HP 16500B Replaceable Parts Ref. Des.
Replaceable Parts HP 16500B Exploded View and Replaceable Parts Exploded View of the HP 16500B 7–6
Replaceable Parts HP 16500B Exploded View and Replaceable Parts HP 16500B Replaceable Parts Ref. Des.
Replaceable Parts HP 16500B Exploded View and Replaceable Parts HP 16500B Replaceable Parts Ref. Des.
Replaceable Parts HP 16501A Exploded View and Replaceable Parts HP 16501A Exploded View and Replaceable Parts Exploded view of the HP 16501A 7–9
Replaceable Parts HP 16501A Exploded View and Replaceable Parts HP 16501A Replaceable Parts Ref. Des.
Replaceable Parts HP 16501A Exploded View and Replaceable Parts HP 16501A Replaceable Parts Ref. Des. HP Part Number QTY Description Internal Parts H1 0515-0372 H2 0515-0433 H3 0515-0435 H4 0515-0664 H5 0515-0943 19 12 6 2 14 Screw M3 X 0.5 8MM-LG Screw M4 X 0.8 15MM-LG Screw M4 X 0.7 14MM-LG Screw M3 X 0.5 12MM-LG Screw M4 X 0.7 12MM-LG H6 H7 H8 H9 0515-1384 0515-1403 0515-1444 0535-0105 2 16 4 4 Screw M5 X 0.8 10MM-LG Screw M4 X 0.7 6MM-LG 90-DEG FH Screw M3.5 X 0.6 25.
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8 Block-Level Theory 8–3 The HP 16500B Logic Analysis System 8–3 The Microprocessor Board 8–6 The Power-Up Routine 8–9 The Power-Up Screen 8–9 Power-Up Self-Tests 8–10 Power-Up Tasks 8–10 The System Configuration Menu 8–12 Self-Tests Description 8–13 Power-Up Self Tests 8–13 Functional Performance Verification Tests 8–15 HP-IB 8–18 RS-232C 8–19 Theory of Operation
Theory of Operation This chapter tells the theory of operation for the logic analysis system and describes the self-tests. The information in this chapter is to help you understand how the logic analysis system operates and what the self-tests are testing. This information is not intended for component-level repair.
Block-Level Theory The block-level theory is divided into two parts: theory for the logic analysis system and theory for the microprocessor board. A block diagram is shown with each theory.
Theory of Operation The HP 16500B Logic Analysis System System Overview Theory HP 16500B The HP 16500B is the mainframe for the Logic Analysis System. Microprocessor Board The microprocessor board contains all the interface circuitry for managing data flow between the mainframe components and the optional boards. The microprocessor used is a Motorola 68EC030. Mother Board Located on the mother board are the intermodule bus and the fan speed control circuit.
Theory of Operation The HP 16500B Logic Analysis System HP 16501A The HP 16501A is the expansion frame for the Logic Analysis System. The expansion frame components include the following: • • • • Expansion Interface Board Interface Cable Mother Board Power Supply To connect the expansion frame to the mainframe, you must install an HP 16500L interface module into the mainframe. The interface cable connects the expansion frame to the HP 16500L in the mainframe.
Theory of Operation The Microprocessor Board The Microprocessor Board The Microprocessor Board 8–6
Theory of Operation The Microprocessor Board Microprocessor Board Theory The microprocessor board contains the system memory, all of the interfaces for the mainframe peripherals, the intermodule bus monitor, and the option board module interface. Microprocessor and System ROM & RAM The processing engine of the HP 16500B microprocessor board is a Motorola 68EC030 microprocessor. The 68EC030 is supported by 128 Kbytes of ROM and 8 Mbytes of single inline memory module (SIMM) RAM.
Theory of Operation The Microprocessor Board HIL Interface The Hewlett-Packard Human Interface Link (HP-HIL) is the interface between the microprocessor and the HP 16500B front panel. In the write mode, the interface controller serializes the 8-bit data and transmits the data to the devices on the link. In the read mode, the data is fed to the interface controller in serial format and to the microprocessor in parallel format.
The Power-Up Routine When power is applied to the HP 16500B Logic Analysis System mainframe, a series of tasks called the power-up routine is performed to initialize and to verify operation of the mainframe. The mainframe monitor reports the progress and status of the power-up routine. Each of the tasks of the power-up routine is added to the monitor display as the task is being performed. The following figure shows all of the tasks and possible status reporting fields that can be displayed on the monitor.
Theory of Operation Power-Up Self-Tests Power-Up Self-Tests All of the power-up self tests are performed to verify the operation of the HP 16500B mainframe. If any of the self-tests fail, then the power-up routine is halted and the FATAL ERRORS ENCOUNTERED, BOOT HALTED message appears. For more information about the individual self-tests, refer to "Self-Tests Description" later in this chapter. If any power-up self-test fails, refer to chapter 5, "Troubleshooting.
Theory of Operation Power-Up Tasks Initializing and Calibrating Modules The installed modules are initialized and stored calibration factors are uploaded from either the disk drive or module NV-RAM into system RAM. The configuration menu of the module using the calibration factors will show if the calibration factors have been successfully loaded. In some cases, a message appears the first time the module is entered.
Theory of Operation The System Configuration Menu The System Configuration Menu When the power-up routine is complete and the HP 16500B is operational, the System Configuration menu is displayed. The names of the installed modules appear in fields on the left side of the display. The fields correspond to the slot into which the module is installed.
Self-Tests Description The self-tests identify the correct operation of the major sub-systems in the HP 16500B Logic Analysis System mainframe. The self-tests are not intended for component-level diagnostics. Two types of tests are performed on the HP 16500B mainframe: the power-up self-tests and the functional performance verification tests. The power-up self-tests are performed when power is applied to the instrument.
Theory of Operation Power-Up Self-Tests RAM Test The RAM Test performs an abbreviated read/write test at various memory locations. The test returns a pass or fail message. For RAM Test failures, first you can suspect a faulty SIMM module, then you can suspect a faulty microprocessor board. Interrupt Test The Interrupt Test checks the microprocessor interrupts (interrupts 1 thorough 7). This test returns a pass or fail message. If any interrupts are active, the test fails.
Theory of Operation Functional Performance Verification Tests Correlator Test The correlator test verifies that the intermodule bus time correlator on the microprocessor board is functioning properly. If the correlator is functioning, then intermodule measurements can be time-correlated to within 2 ns. This test reports either a pass or fail message. For Correlator Test failures, you can suspect a faulty microprocessor board.
Theory of Operation Functional Performance Verification Tests RAM Test This test checks the mainframe RAM on the microprocessor board. The test performs a non-destructive pattern write/read at every location. The initial RAM contents are restored after the test. For RAM Test failures, first you can suspect a faulty SIMM module, then you can suspect a faulty microprocessor board. HP-IB Test The HP-IB Test checks the basic interface functions of the HP-IB port.
Theory of Operation Functional Performance Verification Tests Possible problems causing a failed message in either the flexible disk drive or hard disk drive include the following: • • • • • A damaged or disconnected disk drive cable. Wrong disk formatting or no disk formatting. The disk write-protect tab set to the write-protect position. A faulty disk drive. Faulty microprocessor board interface circuitry to the disk drive.
HP-IB The Hewlett-Packard Interface Bus (HP-IB) is Hewlett-Packard’s implementation of IEEE Standard 488-1978, "Standard Digital Interface for Programming Instrumentation." HP-IB is a carefully defined interface that simplifies the integration of various instruments and computers into systems. The interface makes it possible to transfer messages between two or more HP-IB compatible devices. HP-IB is a parallel bus of 16 active signal lines divided into three functional groups according to function.
RS-232C The logic analysis system interfaces with RS-232C communication lines through a standard 25 pin D connector. The logic analysis system is compatible with RS-232C protocol. When a hardwire handshake method is used, the Data Terminal Ready (DTR) line, pin 20 on the connector, is used to signal if space is available for more data in the logical I/O buffer. Pin outs of the RS-232C connectors are listed in the following table.
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