® 43B Power Quality Analyzer Software version 3.00 onwards Service Information 4822 872 05401 Febr. 2009, Rev. 1, 04-June-2012 © 2009, 2012 Fluke Corporation, All rights reserved. Printed in the Netherlands All product names are trademarks of their respective companies.
SERVICE CENTERS To locate an authorized service center, visit us on the World Wide Web: http://www.fluke.com or call Fluke using any of the phone numbers listed below: +1-888-993-5853 in U.S.A.
Table of Contents Chapter 1 Title Page Safety Instructions............................................................................... 1-1 1.1 Introduction.................................................................................................. 1.2 Safety Precautions........................................................................................ 1.3 Caution and Warning Statements................................................................. 1.4 Symbols ............................
3B Service Information 3.3.4 Digital Circuit....................................................................................... 3-24 4 Performance Verification .................................................................... 4-1 4.1 Introduction.................................................................................................. 4.2 Equipment Required For Verification ......................................................... 4.3 How To Verify..........................................
Contents (continued) 6.1. Introduction................................................................................................. 6.2. Disassembling Procedures .......................................................................... 6.1.1 Required Tools ..................................................................................... 6.2.2 Removing the Battery Pack .................................................................. 6.2.3 Removing the Bail.........................................
List of Tables Table 1-1. 2-1. 2-2. 2-3. 3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 4-1. 4-2. 4-3. 4-4. 4-5. 4-6. 4-7. 4-8. 4-9. 4-10. 4-11. 5-1. 5-2. 5-3. 5-4. 7-1. 8-1. 8-2. 8-3. 9-1. 9-2. Title Page Symbols.................................................................................................................. No Visible Disturbance .......................................................................................... Disturbance < 1 %..................................................................
List of Figures Figure 2-1. 3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 3-7. 3-8. 3-9. 3-10. 3-11. 3-12. 3-13. 4-1. 4-2. 4-3. 4-4. 4-5. 4-6. 4-7. 4-8. 4-9. 4-10. 4-11. 4-12. 5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 6-1. Title Page Max. Input Voltage vs. Frequency ......................................................................... Fluke 43 Block Diagram ........................................................................................ Fluke 43 Start-up Sequence, Operating Modes..............................
43B Service Information 6-2. 6-3. 6-4. 6-5. 7-1. 8-1. 8-2. 9-1. 9-2. 9-3. 9-4. 9-5. 9-6. 9-7. 9-8. 9-9. 9-10. Flex Cable Connectors ........................................................................................... Main PCA Unit Assembly...................................................................................... Mounting the display shielding bracket ................................................................. Battery pack installation...............................................
Chapter 1 Safety Instructions Title 1.1 Introduction.................................................................................................. 1.2 Safety Precautions........................................................................................ 1.3 Caution and Warning Statements................................................................. 1.4 Symbols ....................................................................................................... 1.5 Impaired Safety.............
Safety Instructions 1.1 Introduction 1 1.1 Introduction Read these pages carefully before beginning to install and use the instrument. The following paragraphs contain information, cautions and warnings which must be followed to ensure safe operation and to keep the instrument in a safe condition. Warning Servicing described in this information package is to be done only by qualified service personnel. To avoid electrical shock, do not service the instrument unless you are qualified to do so. 1.
43B Service Information 1.5 Impaired Safety Whenever it is likely that safety has been impaired, the instrument must be turned off and disconnected from line power. The matter should then be referred to qualified technicians. Safety is likely to be impaired if, for example, the instrument fails to perform the intended measurements or shows visible damage. 1.
Chapter 2 Characteristics Title 2.1 Introduction.................................................................................................. 2.2 Safety Specifications.................................................................................... 2.3 Function Specifications................................................................................ 2.3.1 Electrical functions............................................................................... 2.3.2 Scope ...........................
Characteristics 2.1 Introduction 2 2.1 Introduction Safety Characteristics The Fluke 43B has been designed and tested in accordance with Standards ANSI/ISA 82.02-01, IEC/EN 61010-1-2001, CAN/CSA C22.2 No. 61010-1-04 (including cCSAus approval), UL std No 61010-1, Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use.
43B Service Information ST8571 Figure 2-1. Max. Input Voltage vs. Frequency Maximum floating voltage From any terminal to ground 0 to 400 Hz ..................................................................................................600 Vrms 2.3 Function Specifications The accuracy of all measurements is within ± (% of reading + number of counts) from 18 °C to 28 °C. For all specifications, probe specifications must be added. 2.3.
Characteristics 2.3 Function Specifications 2 0.25 to 0.90.................................................................................................. ± 0.04 0.90 to 1.00.................................................................................................. ± 0.03 PF .............................................................................................................0.00 to 1.00 ± 0.04 Frequency range ......................................................................... 10.
43B Service Information In Roll mode......................................................................................... 60 s to 1 s/div Time base error................................................................................ < ±(0.4 % + 1 pixel) Maximum sampling rate 10 ms to 60 s.................................................................................................... 5 MS/s 20 ns to 10 ms...............................................................................................
Characteristics 2.3 Function Specifications 2 A ac and A ac+dc (True RMS) input 2 DC to 60 Hz.................................................................................. ±(1 % + 10 counts) 60 Hz to 15 kHz ......................................................................... ±(30 % + 25 counts) Frequency (Hz), Pulse width, Duty cycle (2.0 % to 98.0 %) 1 Hz to 1 MHz............................................................................. ±(0.5 % + 2 counts) 1 MHz to 10 MHz ....................
43B Service Information 2.4 Miscellaneous Display Useful screen area................................................................72 x 72 mm (2.83 x 2.83 in) Resolution.............................................................................................. 240 x 240 pixels Backlight .................................................................. Cold Cathode Fluorescent (CCFL) Power External Power Adapter............................................................................................
Characteristics 2.5 Current Probe i400s 2 Electrical Specifications Reference Conditions: 23 ± 5 °C, 20 to 75 % RH; conductor centered in jaw opening; no DC component; no adjacent conductor 40 A Range 400 A Range Measurement Range: 0.5 A to 40 A 5 A to 400 A Output: 10 mV/A 1 mV/A Accuracy: 45 Hz to 3 kHz 2 % + 0.015 A 2 % + 0.04 A 0.5 A to 1 A 1 A to 5 A 5 A to 10 A 10 A to 20 A 20 A to 40 A 40 A to 400 A Unspecified 4° 3° 3° 2° NA NA NA Unspecified 2° 2° 1.
43B Service Information 2.6 Environmental Conditions Environmental ..................................................... MIL 28800E, Type 3, Class III, Style B Temperature During operation.......................................................................0 to 50 °C (32 to 122 °F) While stored .......................................................................... -20 to 60 °C (-4 to 140 °F) Humidity During operation: 0 to 10 °C (32 to 50 °F) ..........................................................
Characteristics 2.7 Electromagnetic Immunity 2 2.7 Electromagnetic Immunity The Fluke 43B, including standard accessories, conforms with the EEC directive 2004/108/EC for EMC immunity, as defined by EN-61326-1:2006, with the addition of the following tables. Disturbance with STL120 and i400s • Volts / amps / hertz • Resistance, Capacitance • Power • Harmonics Table 2-1. No visible disturbance E = 1 V/m E = 3 V/m 80 MHz – 1 GHz E = 10 V/m 5 mV – 500 V/div 1.4 GHz to 2.0 GHz 5 mV – 500 V/div n.a. n.
43B Service Information 2-12
Chapter 3 Circuit Descriptions Title 3.1 Introduction.................................................................................................. 3.2 Block Diagram............................................................................................. 3.2.1 Input 1 - Input 2 Measurement Circuits................................................ 3.2.2 Trigger Circuit ...................................................................................... 3.2.3 Digital Circuit........................
43B PROBE B PROBE B 19 16 16 21 Service Information ST7965_2.WMF Figure 3-1.
Circuit Descriptions 3.1 Introduction 3 3.1 Introduction Section 3.2 describes the functional block diagram shown in Figure 3-1. It provides a quick way to get familiar with the test tool basic build-up. Section 3.3 describes the principle of operation of the test tool functions in detail, on the basis of the circuit diagrams shown in Figures 9-1 to 9-8. For all measurements, input signals are applied to the shielded input banana jackets. Traces and readings are derived from the same input signal samples.
43B Service Information 3.2.1 Input A (1) - Input B (2) Measurement Circuits The basic input signal for the Input 1 and Input 2 circuits (hardware) is voltage. The reading of Input 1 is in (milli)Volts. The reading of Input 2 is in Amperes. So the voltage on Input 2 is assumed to be supplied by a current clamp. From the measured voltage samples the readings are calculated by the instrument firmware. For example: power readings are calculated from the Input 1 and Input 2 voltage samples.
Circuit Descriptions 3.2 Block Diagram 3 from acquired input voltage samples. For functions with (LF), the HF path of Input 1 is disabled, which results in a 15 kHz bandwidth for both Input channels. Miscellaneous Control of the C-ASIC, e.g. selecting the attenuation factor, is done by the D-ASIC via the SDAT (Serial Data) and SCLK (Serial Clock) serial communication lines. An offset compensation voltage and a trace position control voltage are provided by the D-ASIC via the APWM bus.
43B Service Information The DPWM-BUS (Digital Pulse Width Modulation) supplies square wave signals with a variable duty cycle to the PWM FILTERS circuit (RC filters). The outgoing APWMBUS (Analog PWM) provides analog signals of which the amplitude is controlled by the D-ASIC. These voltages are used to control e.g. the trace positions (C-ASIC), the trigger levels (T-ASIC), and the battery charge current (P-ASIC). In random sampling mode (time base faster than 1 μs/div.
Circuit Descriptions 3.2 Block Diagram 3 The BACK LIGHT CONVERTER generates the 400V ! supply voltage for the LCD fluorescent back light lamp. If the lamp is defective a 1.5 kV voltage can be present for 0.2 second maximum. The brightness is controlled by the BACKBRIG signal supplied by the D-ASIC. Serial communication with a PC or printer is possible via the RS232 optically isolated interface. The P-ASIC buffers the received data line (RXDA) and supplies the buffered data (RXD) to the D-ASIC.
43B Service Information In the following situations the batteries will need a deep discharge-full charge cycle, called a “refresh”: • every 50 not-full discharge/charge cycles, or each 3 months. This prevents battery capacity loss due to the memory effect. • after the battery has been removed, as the test tool does not know the battery status then. The user will be prompted for this action when he turns the test tool on, directly following the start up screen.
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 Table 3-2.
43B Service Information As described in Section 3.2.5, the test tool operating mode depends on the connected power source. The voltage VBAT is supplied either by the power adapter via V506/L501, or by the battery pack. It powers a part of the P-ASIC via R503 to pin 60 (VBATSUP). If the test tool is off, the Fly Back Converter is off, and VBAT powers the D-ASIC via transistor V569 (+3V3GAR). This +3V3GAR voltage is controlled and sensed by the P-ASIC. If it is NOT OK (<3.
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 The filtered CHARCUR voltage range on pin 80 is 0... 2.7V for a charge current from 0.5A to zero. A voltage of 0V complies to 0.5A (fast charge), 1.5V to 0.2A (top off charge), 2.3V to 0.06A (trickle charge), and 2.7V to 0A (no charge). If the voltage is > 3 Volt, the charger converter is off (V506 permanently non-conductive). The D-ASIC derives the required charge current value from the battery voltage VBAT.
43B Service Information VCHDRIVE V506 “OFF” VCHDRIVE -13V V506 “ON” 10 μs Figure 3-4. CHAGATE Control Voltage +3V3GAR Voltage When the test tool is not turned on, the Fly Back Converter does not run. In this situation, the +3V3GAR voltage for the D-ASIC, the FlashROM, and the RAM is supplied via transistor V569. The voltage is controlled by the VGARDRV signal supplied by the P-ASIC (pin 69). The current sense voltage across R580 is supplied to pin 70 (VGARCURR).
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 The FREQPS control signal is converted to appropriate voltage levels for the FET switch V554 by the BOOST circuit. The voltage VBAT supplies the BOOST circuit power (pin 48) via V550 and C551. The FREQPS signal is also supplied to the D-ASIC, in order to detect if the Fly Back converter is running well. V551 and C552 limit the voltage on the primary winding of T552 when the FET V554 is turned of.
43B Service Information RS232 The optical interface enables serial communication (RS232) between the test tool and a PC or printer. The received data line RXD1 (D-ASIC pin L2) is connected to the output of the circuit with photodiode H522 and the operational amplifiers N601, N602. N601, D532, R610, and C612 form a rectifier circuit that makes a DC voltage across C612. The magnitude of the DC voltage depends on the magnitude of the signal received by the photodiode.
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 3.3.2 Input 1 (A) - Input 2 (B) Measurement Circuits The description below refers to circuit diagrams Figure 9-1 and Figure 9-2. The Input 1 and Input 2 circuits are partly identical. Both circuits condition input voltages. See section 3.2.1 for a description of the differences between Input 1 and 2. The Input 1/2 (A/B) circuitry is built-up around a C-ASIC OQ0258.
43B Service Information large HF gain. The C-ASIC includes a HF pre-amplifier with switchable gain factors for the 1-2-5 steps. The C-ASIC also includes circuitry to adjust the gain, and pulse response. ADC output pin 27 The combined conditioned HF/LF signal is supplied to the ADC output (pin 27) via an internal ADC buffer. The output voltage is 150 mV/d. The MIDADC signal (pin 28), supplied by the ADC, matches the middle of the C-ASIC output voltage swing to the middle of the ADC input voltage swing.
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 DACTEST output pin 24 As described above, the DACTEST output is used for signaling a ground protect error. It can also be used for testing purposes. Furthermore the DACTEST output provides a CASIC reset output signal (+1.75V) after a power on. ADDRESS output pin 23 The output provides a replica of the input voltage to the SENSE line via R165. In capacitance mode, the sense signal controls the CLAMP function in the T-ASIC (See Section 3.3.3).
43B Service Information ground. Any voltage across the PTC resistor will be added to the input signal, and cause a mis-reading. This influences Input 2 in particular as this input operates mostly in the lowest voltage ranges (see section 3.2.1). For this reason a hum rejection circuit is added for Input 2. The voltage across the PTC is supplied to the inverting X1 amplifier N202. Then the AC part of the N202 output signal is subtracted from the input sigal on the C-ASIC LF input (pin 42).
Circuit Descriptions 3.3 Detailed Circuit Descriptions +Iref 0 3 I-Cx -Iref pos. clamp active ref clamp th2 th1 U-Cx 0 neg. clamp active neg. clamp active TRIG-A Figure 3-9. Capacitance Measurement The T-ASIC supplies a positive (charge) and a negative (discharge) current. A measurement cycle starts from a discharged situation (U CX=0) with a charge current. After reaching the first threshold level (th1) the pulse width measurement is started.
43B Service Information banana-to-BNC adapter, is inserted in Input 2, it will short the two ground shield halves. This can be detected by the D-ASIC. Supply Voltages The +5VA, +3V3A, and -3V3A supply voltages are supplied by the Fly Back Converter on the POWER part. The voltages are present only if the test tool is turned on. 3.3.3 Trigger Circuit The description refers to circuit diagram Figure 9-4. The trigger section is built up around the T-ASIC OQ0257.
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 1. Single shot triggering. The DUALTRIG signal is supplied to the synchronization/delta-T circuit. The trigger levels TRIGLEV1 and TRIGLEV2 are set just above and below the DC level of the input signal. A trigger is generated when the signal crosses the trigger levels. A trigger will occur on both a positive or a negative glitch. This mode ensures triggering, when the polarity of an expected glitch is not known. 2. Qualified triggering .
43B Service Information TRIGGER dt1 3 13 SAMPLES SWEEP 1 dt2 4 14 SAMPLES SWEEP 2 PIXEL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Figure 3-11. Random Repetitive Sampling Mode DACTEST output A frequency detector in the T-ASIC monitors the ALLTRIG signal frequency. If the frequency is too high to obtain a reliable transmission to the D-ASIC, the DACTEST output pin 29 will become high. The DACTEST signal is read by the D-ASIC via the slow ADC on the Power part.
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 Reference Voltage Circuit This circuit derives several reference voltages from the 1.23 V main reference source. REFPWM2 +3.3V +1.23V 73 REFP 72 V301 71 REFP R309 R311 R312 R308 -1.23V + - 1.23V +3.3V P-ASIC OQ0256 R307 62 + GAINPWM 56 REFPWM1 55 GNDREF 57 GAINREFN 63 - + - REFN 64 + GAINADCB 54 - 3 R303 REFADCB 53 + +1.6V 2 R306 R310 +0.
43B Service Information Amplifier 3 and 4 and connected resistors supply the REFADCT and REFADCB reference voltages for the ADC’s. Both voltages directly influence the gain accuracy of the ADC’s. The T-ASIC can select some of the reference voltages to be output to pin 8 (REFATT). The REFATT voltage is used for internal calibration of the Input 1 and B overall gain. Tracerot Signal The T-ASIC generates the TRACEROT signal, used by the C-ASIC’s. Control signals TROTRST and TROTCLK are provided by the D-ASIC.
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 The sample rate depends on the sample clock supplied to pin 15. The sample rate is 5 MHz or 25 MHz, depending on the instrument mode. The ADC-A input signal is sampled by sample clock SMPCLK_A; ADC-B by SMPCLK_B. Both sample clocks are generated by the D-ASIC. SMPCLK_B is also used for synchronisation of the Trigger Circuit (B is choosen because of the printed circuit board track layout).
43B Service Information RAM Measurement data, instrument settings, screens and set ups are stored in RAM D475. This RAM is 8 Mb. All RAM data will be lost if all power sources (battery and power adapter) are removed. mask ROM The D-ASIC has on-chip mask ROM. If no valid Flash ROM software is present when the test tool is turned on, the mask ROM software will become active.
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 Each 14 ms the LCD picture is refreshed during a frame. The frame pulse (FRAME) indicates that the concurrent LINECLK pulse is for the first column. The column drivers must have been filled with data for the first column. Data nibbles (4 bit) are supplied via lines LCDAT0-LCDAT3. During 20 data clock pulses (DATACLK0) the driver for Y161..240 is filled. When it is full, it generates a carry to enable the driver above it, which is filled now.
43B Service Information PWM Signals The D-ASIC generates various pulse signals, by alternately connecting an output port to a reference voltage (REFPWM1 or REFPWM2) and ground level , with software controllable duty cycle (pins B13-C9). The duty cycle of the pulses is controlled by the software. By filtering the pulses in low pass filters (RC), software controlled DC voltages are generated. The voltages are used for various control purposes, as shown in Table 3-6. Table 3-6.
Circuit Descriptions 3.3 Detailed Circuit Descriptions 3 BATIDENT The BATTIDENT/BATIDGAR line (pin B5) is connected via R498 to R510 on the Power section, and to a resistor in the battery pack (0 Ω for Ni-Cd, 825 Ω for Ni-MH). If the battery is removed, this is signaled to the D-ASIC (BATTIDENT line goes high). MAINVAL, FREQPS The MAINVAL signal (pin M2) is supplied by the P-ASIC, and indicates the presence of the power adapter voltage (high = present).
43B Service Information 3-30
Chapter 4 Performance Verification Title 4.1 Introduction.................................................................................................. 4.2 Equipment Required For Verification ......................................................... 4.3 How To Verify............................................................................................. 4.4 Display and Backlight Test.......................................................................... 4.
Performance Verification 4.1 Introduction 4 4.1 Introduction Warning Procedures in this chapter should be performed by qualified service personnel only. To avoid electrical shock, do not perform any servicing unless you are qualified to do so. The test tool should be calibrated and in operating condition when you receive it. The following performance tests are provided to ensure that the test tool is in a proper operating condition.
43B Service Information 4.4 Display and Backlight Test Before doing the tests, you must reset the test tool to put it in a defined state. Proceed as follows to reset the test tool: • Press • Press and hold • Press and release to turn the test tool off. . to turn the test tool on. Wait until the test tool has beeped twice, and then release beeped twice, the RESET was successful. When the test tool has Proceed as follows to test the display and the backlight: 1. Press to turn the test tool on. 2.
Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. 4 11. Press . The test pattern is removed; the test tool shows Contrast (CL 0110):MANUAL (CAL) . 12. Press The test tool shows the display test pattern shown in Figure 4-1, at default contrast. Observe the test pattern closely, and verify that the no pixels with abnormal contrast are present in the display pattern squares. Also verify that the contrast of the upper left and upper right square of the test pattern are equal. 13.
43B Service Information 4.5.1 Input 1 Trigger Sensitivity Test Proceed as follows to test the Input 1 trigger sensitivity: 1. Connect the test tool to the 5500A as shown in Figure 4-2. ST8004.CGM Figure 4-2. Test Tool Input 1 to 5500A Scope Output 50Ω 2. Select the AUTO test tool setup: • Press to select the MENU. • Press till SCOPE is highlighted. • Press to select SCOPE mode. 3. Select timebase of 100 ns/d. • Press • Press to select RANGE. to select 100 ns/d. 4.
Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. 4 4.5.2 Input 1 Frequency Response Upper Transition Point Test Proceed as follows to test the Input 1 frequency response upper transition point: 1. Connect the test tool to the 5500A as for the previous test (see Figure 4-2). 2. Select the AUTO test tool setup: • Press to select the MENU. • Press till SCOPE is highlighted. • Press to select SCOPE mode 3.
43B Service Information 3. Select the following test tool setup: • Press • Press • Press • Press • Press • Press • Press • Press • Press to confirm;
mark changes to . • Press to return to SCOPE. to select menu SCOPE SETUP. to highlight Input 1 coupling. to select the Input 1 coupling menu. to highlight DC Coupling. to confirm;
mark changes to to highlight Input 1 Reading to go to Input 1 READING. to highlight Hz. 4.
Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. 4 4.5.4 Input 2 Frequency Measurement Accuracy Test Proceed as follows to test the Input 2 frequency measurement accuracy: 1. Connect the test tool to the 5500A as shown in Figure 4-3. Figure 4-3. Test Tool Input 2 to 5500A NORMAL output ST8588.wmf 2. Select the AUTO test tool setup: • Press to select the MENU. • Press till SCOPE is highlighted. • Press to select SCOPE mode 3.
43B Service Information 4.5.5 Input 2 Trigger Level and Trigger Slope Test Proceed as follows: 1. Connect the test tool to the 5500A as for the previous test shown in Figure 4-3. 2. Select the AUTO test tool setup: • Press to select the MENU. • Press till SCOPE is highlighted. • Press to select SCOPE mode 3. Make Input 2 active: • Press to select menu SCOPE SETUP. • Press to highlight the Input 2 READING.
Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. • Press • Press • Press • Press • Press • Press to highlight positive trigger ( ). • Press to confirm;
changes to . • Press to return to SCOPE. 4 .to select the TIME BASE menu. to select SINGLE. to confirm;
mark changes to . to highlight Trigger slope. to select the TRIGGER SLOPE menu. 7.
43B Service Information 17. Verify that the 5500A voltage is between +1.5V and +2.5V when the test tool is triggered. To repeat the test, start at step 12. 18. When you are finished, set the 5500A to Standby. 4.5.6 Input 2 Trigger sensitivity Test. Proceed as follows to test the Input 2 trigger sensitivity: 1. Connect the test tool to the 5500A as for the previous test shown in Figure 4-3. 2. Select the AUTO test tool setup: • Press to select the MENU. • Press till SCOPE is highlighted.
Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. • Press 4 to adjust. 8. Select timebase of 10 μs/d. • Press • Press to select RANGE. to select 10 μs/d. 9. Set the 5500A to source a 20 kHz leveled sine wave of 100 mV peak-to-peak (half a division peak-to-peak on the display). 10. Verify that the signal is well triggered , if necessary adjust the trigger level (see 7). 11. When you are finished, set the 5500A to Standby. 4.5.
43B Service Information • Press to return to SCOPE. • Press to select Input 1 RANGE. • Press to select 1V/d. • Press to select a timebase of 10 ms/d. • Press to leave RANGE 1. • Press to select TRIGGER. • set the trigger level to +2 divisions from the screen center. For Using positive slope triggering, the trigger level is the top of the trigger icon ( ). 4. Set the 5500A to source 0.4V DC.
Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. • Press to confirm;
mark changes to . • Press to return to SCOPE. 4 11. Set the 5500A to source +3V DC. 12. Set the trigger level to +2 divisions from the screen center. For negative slope triggering, the trigger level is the bottom of the trigger icon ( ). • Press • Using to select TRIGGER. set the trigger level to +2 divisions from the screen center. 13.
43B Service Information • Press to select SCOPE mode. 3. Select DC coupling & reading for Input 1 and 2. • Press to select menu SCOPE SETUP. • Press to select Input 1 READING. • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press to confirm;
mark changes to . • Press to return to SCOPE. to highlight DC. to confirm;
mark changes to . to highlight Input 1 Coupling. to select the Input 1 Coupling menu.
Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. 4 Table 4-2. Volts DC Measurement Verification Points Sensitivity 5500A output, V DC DC Reading Input 1 Input 2 Input 1 [mV or V/div] Input 2 [A or kA/div] 5 mV/div 5 A/div 15 mV 14.4 to 15.6 2) 14.88 to 15.13 2) 10 mV/div 10 A/div 30 mV 29.3 to 30.7 2) 29.80 to 30.20 2) 20 mV/div 20 A/div 60 mV 59.2 to 60.8 50 mV/div 50 mV/div 150 mV 148.7 to 151.3 100 mV/div 100 A/div 300 mV 298.0 to 302.0 298.
43B Service Information 2. Select the AUTO test tool setup: • Press to select the MENU. • Press till SCOPE is highlighted. • Press to select SCOPE mode 3. Select DC coupling & reading for Input 1 and 2. • Press to select menu SCOPE SETUP. • Press to select Input 1 READING. • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press to confirm;
mark changes to . • Press to return to SCOPE.
4 Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. Table 4-3. Volts AC Measurement Verification Points Sensitivity Input 1 Input 2 200 mV/div 200A/div 2V/div 2kA/div 20V/div 1) 20kA/div Time base 5500A output Volts rms 5500A Frequency Reading 1 & 2 Input 1 Input 2 494.0 to 506.0 10 ms/d 500 mV 60 Hz 494.0 to 506.0 20 μ/d 500 mV 20 kHz 486.0 to 514.0 20 μ/d 5V 20 kHz 4.860 to 5.140 10 ms/d 5V 60 Hz 4.940 to 5.060 4.940 to 5.060 10 ms/d 50V 60 Hz 49.
43B Service Information • Press • Press • Press to confirm;
mark changes to . • Press to return to SCOPE. to select the Input 2 COUPLING. to highlight AC Coupling. 4. Set the 5500A to source an AC voltage, to the first test point in Table 4-4 (NORMAL output, WAVE sine). 5. Observe the Input 1 and Input 2 main reading and check to see if it is within the range shown under the appropriate column. 6. Continue through the test points. 7. When you are finished, set the 5500A to Standby. Table 4-4.
Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press to confirm;
mark changes to . • Press to return to SCOPE. 4 to highlight DC Coupling. to confirm;
mark changes to . select Input 2 READING. to select the Input 2 READING. to highlight Peak m/m. to confirm;
mark changes to . to highlight Input 2 Coupling. to select the Input 2 COUPLING. to highlight DC Coupling. 4.
43B Service Information • Press • Press • Press • Press • Press • Press • Press • Press to confirm;
mark changes to . • Press to return to SCOPE. to select Input 2 READING. to select the Input 2 READING. to highlight Phase. to confirm;
mark changes to . to highlight Input 2 Coupling. to select the Input 2 COUPLING. to highlight DC Coupling. 4. Set the 5500A to source a sine wave, to the first test point in Table 4-6 (NORMAL output, WAVE sine). 5.
Performance Verification 4.5 Input 1 and Input 2 Tests in the SCOPE MODE. 4 2. Select the AUTO test tool setup: • Press to select the MENU. • Press till SCOPE is highlighted. • Press to select SCOPE mode 3. Select DC coupling & reading for Input 1 and 2. • Press to select menu SCOPE SETUP. • Press to select Input 1 READING.
43B Service Information 8. Select DC coupling and ACrms reading for Input 1 and 2. • Press to select menu SCOPE SETUP. • Press to select Input 1 READING. • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press • Press to confirm;
mark changes to . • Press to return to SCOPE. to highlight ACrms. to confirm;
mark changes to . to highlight Input 1 Coupling. to select the Input 1 Coupling menu.
4 Performance Verification 4.6 Ohms/Continuity/Capacitance. Table 4-7. V DC and V AC High Voltage Verification Tests Sensitivity Time/ div. Input 1 Input 2 200V/d 200kA/d 500V/d 500kA/d 5500A output Vrms 5500A Frequency Reading (DC) Input 1 & 2 10 ms/d 0V DC -0.5 to +0.5 10 ms/d +500V DC +497.0 to +503.0 10 ms/d -500V DC -497.0 to -503.0 10 ms/d +600V DC +0.592 to +0.608 10 ms/d -600V DC -0.592 to -0.608 10 ms/d 0V DC -0.005 to +0.
43B Service Information 3. Set the 5500A to the first test point in Table 4-8. Use the 5500A “COMP 2 wire” mode for the verifications up to and including 50 kΩ. For the higher values, the 5500A will turn off the “COMP 2 wire” mode. 4. Observe the Input 1 main reading and check to see if it is within the range shown under the appropriate column. 5. Continue through the test points. 6. When you are finished, set the 5500A to Standby. Table 4-8.
Performance Verification 4.6 Ohms/Continuity/Capacitance. • Press • Press to select the item. • Press to select CONTINUITY. 4 to highlight OHMS/CONTINUITY/CAPACITANCE. 3. Set the 5500A to 25Ω. Use the 5500A “COMP 2 wire” mode. 4. Listen to hear that the beeper sounds continuously. 5. Set the 5500A to 35Ω. 6. Listen to hear that the beeper does not sound. 7. When you are finished, set the 5500A to Standby. 4.6.4 Capacitance Measurements Test Proceed as follows: 1.
43B Service Information 4.7 Inrush Current. Proceed as follows to test the INRUSH CURRENT. 1. Connect the test tool to the 5500A as shown in Figure 4.8. ST8588.wmf Figure 4-8. Test Tool Input 2 to 5500A NORMAL output 2. Press 3. Press 4. Press . to highlight INRUSH CURRENT. to enter mode. Now the MAXIMUM CURRENT is highlighted. If the CURRENT IS NOT 1000A then: 1. Press 2. Press 3. Press to highlight 1000A. to confirm;
mark changes to . 4. Set the 5500A to 0V (NORMAL output). 5. Press 6. Press 7.
Performance Verification 4.8 Sags & Swells 3. Press 4 to move the right cursor to the fifth division. 4. Observe the readings and verify that they are between 1.38 and 1.62 kA. 5. When you are finished, set the 5500A to Standby 4.8 Sags & Swells Proceed as follows to test the sags & swells mode. ST8001.CGM Figure 4-9. Test Tool Input 1 & 2 5500A Normal Output 1. Connect the test tool to the 5500A as shown in Figure 4.9. 2. Press 3. Press 4. Press . to highlight SAGS & SWELLS. to enter mode.
43B Service Information 4.9 Harmonics. Proceed as follows to test HARMONICS: 1. Connect the test tool to the 5500A as for the previous test shown in Figure 4-9. 2. Press . 3. Press to highlight HARMONICS. 4. Press to select HARMONICS. 5. Set the 5500A to source a square wave 2.5V, 60Hz (NORMAL output, WAVE square). 6. Check the bargraphs of VOLTS look like the ones in Figure 4-10. 7. Press to enter the AMPS mode. 8. Check the bar graph look like the one in Figure 4-11. 9.
Performance Verification 4.11 POWER. 4 Table 4-10. Volts/AMPS/HERTZ verification points 5500A output 5500A Freq. Reading1 Reading 2 Volt Hertz Kilo-Amperes ± 10 counts 0 5.5V 70Hz 4.5V 70Hz ± 10 counts 5.34 - 5.66 69.4 - 70.6 5.34 - 5.66 69.4 - 70.6 4.445 - 4.555 4.11 POWER. Proceed as follows to test POWER: 1. Connect the test tool to the 5500A as for the previous test shown in Figure 4-9. 2. Press 3. Press to highlight POWER. 4. Press to select POWER. 5.
43B Service Information 4.12 Transients. Proceed as follows to test the TRANSIENTS function: 1. Connect the test tool to the 5500A as show in Figure 4-12. ST8586.WMF Figure 4-12. Test Tool Input 1 to 5500A Normal Output 2. Press 3. Press 4. Press . to highlight TRANSIENTS. to select the TRANSIENTS mode. VOLTAGE CHANGE will be highlighted, continue with: 1. Press 2. Press 3. Press 4. Press . to select 20%. to confirm;
mark changes to . to select START. 5.
Chapter 5 Calibration Adjustment Title Page 5.1 General.........................................................................................................5-3 5.1.1 Introduction ..........................................................................................5-3 5.1.2 Calibration number and date.................................................................5-3 5.1.3 General Instructions..............................................................................5-4 5.
Calibration Adjustment 5.1 General 5 5.1 General 5.1.1 Introduction The following information, provides the complete Calibration Adjustment procedure for the Fluke 43B test tool with firmware V03.00 and onwards. The test tool allows closed-case calibration using known reference sources. It measures the reference signals, calculates the correction factors, and stores the correction factors in RAM. After completing the calibration, the correction factors can be stored in FlashROM.
43B Service Information 5.1.3 General Instructions Follow these general instructions for all calibration steps: • • • Allow the 5500A to satisfy its specified warm-up period. For each calibration point , wait for the 5500A to settle. The required warm up period for the test tool is included in the WarmingUp & PreCal calibration step. Ensure that the test tool battery is charged sufficiently. 5.
Calibration Adjustment 5.3 Starting Calibration Adjustment 5 The Calibration Adjustment Procedure uses built-in calibration setups, that can be accessed in the Maintenance mode. To enter the Maintenance mode proceed as follows: • Press and hold • Press and release • Release • The display shows the Calibration Adjustment Screen. . . . The display shows the first calibration step Warming Up (CL 0200) , and the calibration status :IDLE (valid) or :IDLE (invalid). 4. Continue with either a. or b.
43B Service Information Functions of the keys F1-ENTER are: PREV select the previous step NEXT select the next step CAL start the calibration adjustment of the actual step EXIT leave the Maintenance mode Readings and traces After completing a calibration step, readings and traces are shown using the new calibration data. 5.4 Contrast Calibration Adjustment After entering the Maintenance mode, the test tool display shows Warming Up (CL 0200):IDLE (valid).
Calibration Adjustment 5.5 Warming Up & Pre-Calibration 5 Figure 5-2. Display Test Pattern 5.5 Warming Up & Pre-Calibration After entering the Warming-Up & Pre-Calibration state, the display shows: WarmingUp (CL 0200):IDLE (valid) or (invalid). You must always start the Warming Up & Pre Calibration at Warming Up (CL0200) . Starting at another step will make the calibration invalid! Proceed as follows: 1. Remove all input connections from the test tool. 2. Press to start the Warming-Up & Pre-Calibration.
43B Service Information 5.6.1 HF Gain Input 1. Proceed as follows to do the HF Gain Input 1&2 calibration: 1. Press to select the first calibration step in Table 5-1 ( HFG & FI A (CL 0600): ) 2. Connect the test tool to the 5500A as shown in Figure 5-3. Do NOT use a 50Ω termination! ST8097.CGM Figure 5-3. HF Gain Calibration Input Connections 3. Set the 5500A to source a 1 kHz fast rising edge square wave (Output SCOPE, MODE edge) to the first calibration point in Table 5-1. 4.
Calibration Adjustment 5.6 Final Calibration 5 Table 5-1. HF Gain Calibration Points Fast 1) Cal step 5500A Setting (1 kHz, no 50 Ω!) 1) Test Tool Input Signal Requirements (1 kHz, trise<100 ns, flatness after rising edge: <0.5% after 200 ns) HFG & FI A (CL 0600) 10 mV 20 mV HFG & FI A (CL 0601) 25 mV 50 mV HFG & FI A (CL 0602) 50 mV 100 mV HFG & FI A (CL 0603) 100 mV 200 mV HFG & FI A (CL 0604) 250 mV 500 mV HFG & FI A (CL 0605) 500 mV 1V HFG & FI A (CL 0606) 1V 2V 2.
43B Service Information ST8004.CGM Figure 5-4. 5500A Scope Output to Input 1 3. Set the 5500A to source a 1V, 1 MHz fast rising (rise time ≤ 1 ns) square wave (SCOPE output, MODE edge). 4. Set the 5500A to operate (OPR). to start the calibration. 5. Press The Delta T gain, Trigger Delay (CL0720), and Pulse Adjust Input 1 (CL0640) will be calibrated. 6. Wait until the display shows Pulse Adj A (CL 0640):READY. 7. When you are finished, set the 5500A to Standby. 8. Continue at Section 5.6.3. 5.6.
Calibration Adjustment 5.6 Final Calibration 5 ST8001.CGM Figure 5-5. Volt Gain Calibration Input Connections <300V 3. Set the 5500A to supply a DC voltage, to the first calibration point in Table 5-3. 4. Set the 5500A to operate (OPR). 5. Press to start the calibration. 6. Wait until the display shows calibration status :READY. 7. Press to select the next calibration step, set the 5500A to the next calibration point, and start the calibration. Continue through all calibration points of Table 5-3 8.
43B Service Information 10. Connect the test tool to the 5500A as shown in Figure 5-6. ST8129.CGM Figure 5-6. Volt Gain Calibration Input Connections 500V 11. Set the 5500A to supply a DC voltage of 500V. 12. Set the 5500A to operate (OPR). to start the calibration. 13. Press Gain DMM (CL0814) and Gain DMM (CL0815) will be calibrated now. 14. Wait until the display shows calibration status Gain DMM (CL0815):READY. 15. Set the 5500A to 0V (zero) and to Standby. 16. Continue at Section 5.6.4. 5.6.
Calibration Adjustment 5.6 Final Calibration 5 5.6.6 Gain Ohm Proceed as follows to do the Gain Ohm calibration: 1. Press to select calibration adjustment step Gain Ohm (CL 0860):IDLE 2. Connect the UUT to the 5500A as shown in Figure 5-7. Notice that the sense leads must be connected directly to the test tool. ST8003.CGM Figure 5-7. Four-wire Ohms calibration connections 3. Set the 5500A to the first test point in Table 5-4.
43B Service Information 2) The Gain Ohm (CL0866) calibration step is done automatically after the Gain Ohm (CL0865) calibration. 5.6.7 Capacitance Gain Low and High Proceed as follows to do the Capacitance Gain calibration: 1. Press to select calibration adjustment step Cap. Low (CL 0900):IDLE 2. Connect the test tool to the 5500A as shown in Figure 5-8. ST8002.CGM Figure 5-8. Capacitance Gain Calibration Input Connections 3. Set the 5500A to supply 250 mV DC. 4. Set the 5500A to operate (OPR). 5.
Calibration Adjustment 5.7 Save Calibration Data and Exit 5 5.6.9 Capacitance Gain Proceed as follows to do the Capacitance Gain calibration: 1. Press to select calibration adjustment step Cap. Gain (CL 0960):IDLE 2. Connect the test tool to the 5500A as shown in Figure 5-8. 3. Set the 5500A to 500 nF. 4. Set the 5500A to operate (OPR). 5. Press to start the calibration. 6. Wait until the display shows Cap. Gain (CL 0960):READY. 7. Continue at Section 5.7 to save the calibration data. 5.
43B Service Information • To return to the Maintenance mode: ⇒ Press NO. Now press until the display shows WarmingUp (CL 0200):IDLE, and calibrate the test tool, starting at Section 5.5. • To exit and save the INVALID calibration data: ⇒ Press YES. The test tool will show the message The test tool needs calibration. Please contact power on. The calibration date and number will not be updated. A complete recalibration must be done.
Chapter 6 Disassembling Title 6.1. Introduction................................................................................................. 6.2. Disassembling Procedures .......................................................................... 6.1.1 Required Tools ..................................................................................... 6.2.2 Removing the Battery Pack .................................................................. 6.2.3 Removing the Bail...............................
Disassembling 6.1. Introduction 6 6.1. Introduction This section provides the required disassembling procedures. The printed circuit board removed from the test tool must be adequately protected against damage. Warning To avoid electric shock, disconnect test leads, probes and power supply from any live source and from the test tool itself. Always remove the battery pack before completely disassembling the test tool.
43B Service Information ST8562.EPS Figure 6-1.
Disassembling 6.2. Disassembling Procedures 6 6.2.5 Removing the Main PCA Unit Referring to Figure 6-1, use the following procedure to remove the main PCA unit. 1. Open the test tool (see Section 6.2.4). 2. Disconnect the LCD flex cable, and the keypad foil flat cable, see Figure 6-2. Unlock the cables by lifting the connector latch. The latch remains attached to the connector body. The keypad foil is provided with a shielding flap that covers the LCD flat cable.
43B Service Information 6.2.6 Removing the Display Assembly There are no serviceable parts in the display assembly. Referring to Figure 6-1, use the following procedure to remove the display assembly. 1. Remove the main PCA unit (see Section 6.2.5). 2. The keypad pressure plate (item 9) is captivated by four plastic keeper tabs in the top case. Press the plate down, carefully slide the plate to release it from the tabs, and then remove it. 3. Remove the display assembly (item 6).
Disassembling 6.3 Disassembling the Main PCA Unit 6 Caution To avoid contaminating the main PCA with oil from your fingers, do not touch the contacts (or wear gloves). A contaminated PCA may not cause immediate instrument failure in controlled environments. Failures typically show up when contaminated units are operated in humid areas. ST8015.CGM 6-3.
43B Service Information 6.4 Reassembling the Main PCA Unit Reassembling the main PCA is the reverse of disassembly. However you must follow special precautions when reassembling the main PCA unit. 1. Ensure the input banana jacks have the rubber sealing ring in place (Input 1, 2 item 9, COM input item 10, see Figure 4-6). 2. Do not forget to install the power connector insulator (item 3) and the LED holder (item 6). 3.
Disassembling 6.5 Reassembling the Test Tool 6 ST8185.EPS Figure 6-4. Mounting the display shielding bracket ST78197.EPS Figure 6-5.
43B Service Information 6-10
Chapter 7 Corrective Maintenance Title Page 7.1 Introduction..................................................................................................7-3 7.2 Starting Fault Finding. .................................................................................7-4 7.3 Charger Circuit ............................................................................................7-4 7.4 Starting with a Dead Test Tool ....................................................................7-6 7.4.
Corrective Maintenance 7.1 Introduction 7 7.1 Introduction This chapter describes troubleshooting procedures that can be used to isolate problems with the test tool. Warning Opening the case may expose hazardous voltages. For example, the voltage for the LCD back light fluorescent lamp is >400V! Always disconnect the test tool from all voltage sources and remove the batteries before opening the case.
43B Service Information 7.2 Starting Fault Finding. After each step, continue with the next step, unless stated otherwise. Power the test tool by the battery pack only, then by the power adapter only. 1. The test tool operates with the power adapter, but not with the battery only: install a charged battery (VBAT >4V), and check the connections between the battery and the test tool (X503, R504, R506, R507). 2.
Corrective Maintenance 7.3 Charger Circuit 7 If not correct, then: a. Check +3V3GAR at the + of C568 or TP571 for +3.3V. If not correct, possibly caused by V569, R580, + of C568 short to ground, loose pins of N501, N501 defective. b. Check N501 pin 8 (VADALOW) for ≅ 1.1V If not correct: 1. Check R515 and connections. The P-ASIC supplies a current to R515. The current source uses REFPWM2 and IREF, see 2 and 3 below. 2. Check N501 pin 73 (REFPWM2) for +3V3. REFPWM2 is supplied by the P-ASIC.
43B Service Information 1. Check the SLOW ADC, see 7.5.3. 2. Check VGARVAL (N501 pin 64), for +3.3V. If not correct, check if the line is shorted to ground. If it is not, then replace N501. 3. Trace the CHARCURR signal path to R534, R 442 and D471A (D-ASIC) output pin B8. d. Check the following: 1. C506 and connections to N501. 2. Connections between V506 and N501 pin 16 (CHAGATE). 3. The voltage at TP501 (N501 pin 19, VCHDRIVE) for ≅ 15...20V. 4. The voltage at N501 pin 43 for a triangle waveform, 80...
Corrective Maintenance 7.5 Miscellaneous Functions 7 TP307 (N501 pin 72, REFP) for 1.22V, check V302/R307. If no 1.22V, and V302/R307 and connections are correct, then replace N501. c. Check N501 pin 12 (NETVALID) for +2.6V. If not correct, proceed as indicated in 7.3, step 6. d. Check the Power ON/OFF function, see 7.5.13. 6. Check X-tal signals on TP473 (32 kHz), and TP475 (50 MHz); if not correct check connections, replace X-tals, replace D471A. The 3.
43B Service Information b. MS420: DATACLK0 for 120 ns pulses MS414-415: LCDAT0,1 for 250 ns pulses MS417-418: LCDAT2,3 for 250 ns pulses MS412 LINECLK, for 120 ns pulses, ≅16 kHz MS411 FRAME, for 250 ns pules, ≅70Hz MS409 M, for a ≅625Hz square wave. c. MS406 +5VA for +5V MS405 +3V3D for +3.3V MS401 -30VD for -30V (from Fly Back Converter). d. MS404 REFPWM1 for +3.3V. 3. Bad contrast. a. Check MS403 (CONTRAST) for a 60 kHz sinewave of 200 mVpp that rides on 0.8 Vdc. b. Check MS408 (LCDTEMP1) for +1.
Corrective Maintenance 7.5 Miscellaneous Functions 7 1. Check the voltage on N501 pin 55 (FLYSENSP). For a correct converter this is a saw tooth voltage of 50...100 kHz, 50...150 mVpp). } 50...150 mV a. If no sawtooth voltage is present on R501, no current, or a DC current flows in FET V554. The primary coil or V554 may be defective (or interrupted connections). Check R504, R506, R507 (battery current sense resistors); these resistors may be fused due to a short in FET V554. b.
43B Service Information 5. SPI-DIN (TP591), SPI-CS (TP592), SPI-SCLK (TP593), SPI-OUT (TP534) supplied by the D-ASIC must show pulses between 0V and +3.3V. 6. In case of considerable deviations (typical examples, measured signals may have different pulse amplitude and repetition rate) replace D531. If this does not help, replace D471A. 7.5.4 Keyboard Proceed as follows if one or more keys cannot be operated. 1. Replace the key pad, and the key pad foil to see if this cures the problem. 2.
Corrective Maintenance 7.5 Miscellaneous Functions 7 2. Select the Scope Roll mode for both input channels: , , highlight SCOPE and press Press (SETUP), highlight INPUT 2 Coupling: OFF, press , highlight Press , highlight Time Base: NORMAL, press , highlight ROLL, DC, press , press BACK. press 3. Apply a 1 kHz square wave to Input 1 and Input 2, and change the test tool sensitivity (V/div) to make the complete square wave visible. 4.
43B Service Information 13. Check N101/31 or N201/31 (TRACEROT supplied by T-ASIC N301) for the signals shown below (typical example at 20 ms/div.). +0.8V -0.8V ≈100 ms ≈5 ms If not correct check: TP432 (RAMPCLK) for 3V, 200 ns pulses. TP332 (RAMPCLK at N301/44) for 0.6V, 200 ns pulses. TP331 (RSTRAMP) for +0.6V pulses, with varying pulse with and repetition rate. All pulses are supplied by D-ASIC-D471A. 14. Check TP310 (REFATT) for alternating +1.2V and -1.2V pulses.
Corrective Maintenance 7.5 Miscellaneous Functions 7 If not correct, most probably the C-ASIC N101 is defective. If correct continue at 7.5.8 Trigger functions (pulse width is measured via the T-ASIC). 7.5.8 Trigger Functions 1. Select the Scope Normal mode for both input channels: , highlight SCOPE and press , press (SETUP), highlight INPUT Press , highlight DC, press , highlight Time Base: 2 Coupling: XXX, press , highlight NORMAL, press , press BACK. XXX, press 2.
43B Service Information 7.5.10 Buzzer Circuit 1. Press Press and select OHMS/CONTINUITY/CAPACITANCE. (Continuity). 2. Short circuit Input 1 to COM. The buzzer is activated now. 3. Check TP496 for a 4 kHz, 0...3V square wave during beeping (+0 V if not activated). 4. Check TP495 for a 4 kHz +3...-30V square wave during beeping (TP495 is -30V if the beeper is not activated). 7.5.11 Reset ROM Line (ROMRST) 1. Check TP487 for +3V (supplied by D471A). 7.5.
Corrective Maintenance 7.6 Loading Software 7 Notice that the acknowledge overwites the first character of the message sent to the test tool. 7.5.13 Power ON/OFF 1. Check TP528 for +3V at power on, and 0V at power off (supplied by D471A). If not correct, do the 7.4.1. tests first! 2. Check MS444 (ONKEY, D471A) for +3V; when pressing the ON key the signal must below for 100...150 ms. 7.5.14 PWM Circuit 1. Check the PWM control signals generated by D471A. The signals must show 0...
43B Service Information After configuring, it must be checked if if the CPLD-configuration was succesfull: The function of CPLD is to assure that battery current drain is zero (<1 mA) after the Power Quality Analyzer has been switched off. This current can be checked with a sensitive Digital Voltmeter across R504/R506/R507 (0.33 ohms in total). The check must be done 10 times after power off and every time current should not exceed 1 mA (with the mains adapter disconnected!).
Chapter 8 List of Replaceable Parts Title Page 8.1 Introduction..................................................................................................8-3 8.2 How to Obtain Parts.....................................................................................8-3 8.3 Final Assembly Parts ...................................................................................8-4 8.4 Main PCA Unit Parts ...................................................................................8-6 8.
List of Replaceable Parts 8.1 Introduction 8 8.1 Introduction This chapter contains an illustrated list of replaceable parts for the model 43B ScopeMeter test tool. Parts are listed by assembly; alphabetized by item number or reference designator. Each assembly is accompanied by an illustration showing the location of each part and its item number or reference designator.
43B Service Information 8.3 Final Assembly Parts See Table 8-1 and Figure 8-1 for the Final Assembly parts. Table 8-1.
List of Replaceable Parts 8.3 Final Assembly Parts 8 ST8562.EPS Figure 8-1.
43B Service Information 8.4 Main PCA Unit Parts See Table 8-2 and Figure 8-2 for the Main PCA Unit parts. Table 8-2. Main PCA Unit Item Description Ordering Code 1 screw M2.5x5 5322 502 21206 2 combiscrew M3x10 5322 502 21507 3 insulator for power input 5322 325 10163 5 main PCA shielding box 5322 466 10976 6 guide piece for optical gate LEDs 5322 256 10201 7 main PCA shielding plate 5322 466 10964 8 screw M2.
List of Replaceable Parts 8.5 Main PCA Parts 8 8.5 Main PCA Parts See Figures 9-9 and 9-10 at the end of Chapter 9 for the Main PCA drawings. Table 8-3. Main PCA Reference Designator Description Ordering Code PCA Location 1 Led Holder for H521 and H522 5322 255 41213 2 Screw for Input Banana Jack Assembly 5322 502 14362 3 ( X100 ) Input Banana Jack Assembly - without Input A,B and COM O-rings, see Figure 8-2. - including rersistors R1 and R2 5322 264 10311 B401 QUARTZ CRYSTAL 32.
43B Service Information Reference Designator 8-8 Description Ordering Code PCA Location C134 CER CHIP CAP 63V 5% 470PF 5322 122 32268 D2 BOTTOM C136 CER CHIP CAP 63V 10% 4.
List of Replaceable Parts 8.
43B Service Information Reference Designator 8-10 Description C322 CER CHIP CAP 63V C331 Ordering Code 10% 1.5NF PCA Location 5322 122 31865 B3 TOP CER CHIP CAP 63V 0.25PF 4.7PF 5322 122 32287 C4 BOTTOM C332 CER CHIP CAP 63V 5322 122 32658 C4 BOTTOM C333 CER CHIP CAP 63V 0.25PF 1PF 5322 122 32447 C3 TOP C337 CER CHIP CAP 63V 0.25PF 4.7PF 5322 122 32287 C3 TOP C339 CER CHIP CAP 63V 0.25PF 1PF 5322 122 32447 C3 TOP C342 CER CHIP CAP 63V 0.
List of Replaceable Parts 8.5 Main PCA Parts Reference Designator Description Ordering Code PCA Location C410 CER CHIPCAP 16V 10% 100NF 4022 301 61681 C3 BOTTOM C415 ALCAP 6.
43B Service Information Reference Designator 8-12 Description Ordering Code PCA Location C481 CER CHIP CAP 50V 5% 18PF 4022 301 60201 B4 BOTTOM C482 CER CHIP CAP 50V 5% 18PF 4022 301 60201 B4 BOTTOM C483 CER CHIP CAP 50V 5% 18PF 4022 301 60201 B4 BOTTOM C484 CER CHIP CAP 50V 5% 18PF 4022 301 60201 B4 BOTTOM C485 CER CHIP CAP 50V 6% 4.
List of Replaceable Parts 8.
43B Service Information Reference Designator 8-14 Description Ordering Code PCA Location C611 CER CHIPCAP 50V 5% 1NF 4022 301 60411 C5 TOP C612 CAP 10NF 10% 50V X7R 2412029 A3 BOTTOM C613 CAP 1UF 10% 25V X7R 3453551 A3 BOTTOM C614 CAP 1NF 5% 50V NP0 1284953 A3 TOP C615 CAP 10PF 5% 50V NP0 1284876 A3 BOTTOM C616 TACAP 10UF 20% 10V 3453609 A4 BOTTOM C617 CAP 1NF 5% 50V NP0 1284953 A3 TOP C618 CAP 1NF 5% 50V NP0 1284953 A3 BOTTOM D401 * AD-CONV AD9280ARSRL 4022 103 00121
List of Replaceable Parts 8.5 Main PCA Parts Reference Designator Description Ordering Code 8 PCA Location L181 CHIP INDUCT. 47UH 10% TDK 4822 157 70794 C3 BOTTOM L182 CHIP INDUCT. 47UH 10% TDK 4822 157 70794 D3 BOTTOM L183 CHIP INDUCT. 47UH 10% TDK 4822 157 70794 D3 BOTTOM L281 CHIP INDUCT. 47UH 10% TDK 4822 157 70794 A3 BOTTOM L282 CHIP INDUCT. 47UH 10% TDK 4822 157 70794 B3 BOTTOM L283 CHIP INDUCT.
43B Service Information Reference Designator 8-16 Description Ordering Code PCA Location N101 * C-ASIC OQ0258 5322 209 13141 C2 TOP N201 * C-ASIC OQ0258 5322 209 13141 A2 TOP N202 * OPAMP 4MHZ LP LM7301IMX SO8 3453572 A2 BOTTOM N301 * T-ASIC OQ0257 5322 209 13142 C3 TOP N401 * OPAMP R-R OPA364AIDBVR SOT23-5 3453585 B4 BOTTOM N501 * P-ASIC OQ0256 5322 209 13143 A5 TOP N600 * LAMP CONTROLLER UC3872DW 5322 209 14851 D5 BOTTOM N601 * OPAMP R-R OPA364AIDBVR SOT23-5 3453585 A3
List of Replaceable Parts 8.
43B Service Information Reference Designator 8-18 Description Ordering Code PCA Location R144 RESISTOR CHIP RC12H 1% 348E 5322 117 12456 D2 BOTTOM R146 RESISTOR CHIP RC12H 1% 215K 5322 117 12457 D2 BOTTOM R151 RESISTOR CHIP TC50 1% 100K 4022 301 22311 D2 BOTTOM R152 RESISTOR CHIP TC50 1% 100K 4022 301 22311 D2 BOTTOM R153 RESISTOR CHIP RC12H 1% 681K 5322 117 12485 D2 BOTTOM R154 RESISTOR CHIP RC12H 1% 681K 5322 117 12458 D2 BOTTOM R155 RESISTOR CHIP RC12H 1% 178K 5322 117 124
List of Replaceable Parts 8.5 Main PCA Parts Reference Designator Description Ordering Code PCA Location R233 RESISTOR CHIP RC12G 1% 10K 5322 117 12486 B2 BOTTOM R234 RESISTOR CHIP RC12G 1% 5322 117 12487 B2 BOTTOM R236 RESISTOR CHIP RC-02G 1% 100E 4822 051 51001 B2 BOTTOM R237 RES 261K 1% 0.25W TC100 3453675 A1 BOTTOM R238 RES 261K 1% 0.25W TC100 3453675 A1 BOTTOM R239 RES 261K 1% 0.25W TC100 3453675 A1 BOTTOM R240 RES 215K 1% 0.
43B Service Information Reference Designator 8-20 Description Ordering Code PCA Location R295 RES 215K 1% 0.1W TC50 207191 A2 TOP R296 RES 1M 1% 0.1W TC50 1284722 A2 BOTTOM R297 RES 10E 1% .125W TC100 1284161 A2 TOP R298 RES 10E 1% .
List of Replaceable Parts 8.
43B Service Information Reference Designator 8-22 Description Ordering Code PCA Location R436 RESISTOR CHIP RC12H 1% 26K1 5322 117 12448 C4 BOTTOM R438 RESISTOR CHIP RC12H 1% 147K 5322 117 12478 B4 BOTTOM R439 RESISTOR CHIP RC12H 1% 21K5 5322 117 12477 C4 BOTTOM R441 RES 10K 1% 0.
List of Replaceable Parts 8.5 Main PCA Parts Reference Designator Description Ordering Code 8 PCA Location R496 RESISTOR CHIP RC12H 1% 3K16 5322 117 12465 D3 BOTTOM R498 RESISTOR CHIP TC50 1% 10K 4022 301 22071 C4 BOTTOM R500 RES 100K 1% 0.
43B Service Information Reference Designator 8-24 Description Ordering Code PCA Location R600 RESISTOR CHIP RC12H 1% 5K11 5322 117 12469 C5 BOTTOM R601 RESISTOR CHIP TC100 1% 68E1 4022 301 21551 D5 BOTTOM R602 RESISTOR CHIP TC50 1% 10K 4022 301 22071 C5 BOTTOM R603 RESISTOR CHIP TC50 1% 100K 4022 301 22311 C4 BOTTOM R604 RESISTOR CHIP RC12H 1% 4822 117 11154 C5 BOTTOM R605 SMD RES 10 K 1% TC50 4022 301 22071 D5 BOTTOM R606 SMD RES 6K19 1% TC50 4022 301 22021 D5 BOTTOM R607
List of Replaceable Parts 8.5 Main PCA Parts Reference Designator Description Ordering Code PCA Location T552 BACKLIGHT TRANSFORMER PT73458 5322 146 10447 B5 TOP T600 SMD TRANSFORMER 678XN-1081 TOK 5322 146 10634 D5 TOP V171 * PNP/NPN TR.PAIR BCV65 5322 130 10762 D3 BOTTOM V172 * PNP/NPN TR.PAIR BCV65 5322 130 10762 B3 BOTTOM V174 * PNP/NPN TR.
43B Service Information Reference Designator Description Ordering Code PCA Location V600 * TMOS P-CH FET MMSF3P03HD 5322 130 10672 D5 BOTTOM V601 * TMOS N-CH FET MMDF3N04HD 4022 304 10221 D5 BOTTOM V602 * SCHOTTKY DIODE MBRS340T3 5322 130 10674 D5 BOTTOM V603 * SIL DIODE 5322 130 31928 C4 TOP V604 * N-CHAN FET 5322 130 63289 C5 BOTTOM V605 * LF TRANSISTOR BC858C 4822 130 42513 C5 BOTTOM X452 CON FFC 15P STR 52610-1571 3453701 D4 TOP X453 CON FFC 21P STR 52610-2171 3453712
Chapter 9 Circuit Diagrams Title Page 9.1 Introduction.................................................................................................. 9-3 9.2 Schematic Diagrams ....................................................................................
Circuit Diagrams 9.1 Introduction 9 9.1 Introduction This chapter contains all circuit diagrams and PCA drawings of the test tool. There are no serviceable parts on the LCD unit. Therefore no circuit diagrams and drawings of the LCD unit are provided. Referring signals from one place to another in the circuit diagrams is done in the following way: 1 2 3 4 5 A B 1 2 3 4 5 A SIGNAL B [5] C C [1] Figure 9.1 Circuit Diagram 1 SIGNAL Figure 9.
43B Service Information Overview of locations of measuring points: MS401-419: D3 MS420-422: D4 MS431-441: D4 MS442-445: D5 MS450: B4 TP151 (POS-A): B3 TP152 (OFFSET-A): C3 TP153 (DACTESTA): C3 TP154 (ADC-A): C3 TP156 (TRIG-A): C3 TP251 (POS-B): B3 TP252 (OFFSET-B): B2 TP253 (DACTESTB): B4 TP254 (ADC-B): B3 TP256 (TRIG-B): B3 TP301 (REFADCT): B3 TP302 (REFADCB): B3 TP303 (REFN): B3 TP304 (+3.3V): B3 TP306 (REFPWM2): A4 TP307 REFP/+1.
9 Circuit Diagrams 9.2 Schematic Diagrams C105 R110 1 10uF C111 4.7pF R105 147E 2.15k R111 10Meg R112 10Meg R113 10Meg R114 10Meg 13 4.7pF NC100 R120 10Meg R108 C114 R117 C116 4.7pF 0E 4.7pF 215E 4.7pF R116 215E R172 400E 16 NC101 GENOUT C118 4.7pF C119 R125 4.7pF C122 12 9 DSP1-L-1.5V C199 470pF 4.7pF NC102 68.1E R119 C123 464E CHANNEL A C131 C124 33pF R118 68.1E 0.82pF 35 R131 R121 68.1E 9 37 R132 8 C107 470pF K171C R109 2.
43B Service Information 10 DCBIAS VATTP3V3 GNDATT 2 R211 13 10Meg 14 CHANNEL B R206 400E 12 C202 C206 100nF 4.7nF R237 R238 R239 R240 R212 261k 261k 261k 215k 10Meg R290 56.2k C295 Not_placed R291 56.2k C293 C292 10nF 10nF 16 17 15 R213 10Meg 19 18 20 10Meg R214 R295 R292 56.2k 215k 21 22 C296 100nF 2 BC848CLT1 R293 46.4k V200 1 1 LM7301IMX 2 VN202 BC848CLT1 V201 3 + 2 R294 100k X100B PROBEB C248 PROBE 220K IN PTC COMMON 7 1 C294 0.
Circuit Diagrams 9.2 Schematic Diagrams 3 +3V3D +3V3A +3V3ADCD R416 1.0E C415 10uF SUPPLY +3V3ADCA R466 1.0E C465 10uF +3V3ADCA +3V3ADCD R417 1.0E ADC-CHANNEL-A +3V3ADCA R404 1.0E C416 100nF [4] ADC-CHANNEL-B REFADCT MIDADC_A R401 10k [4] D401 C402 100nF AD9280 C410 100nF C405 100nF C406 10uF C407 100nF 21 22 24 25 26 18 REFADCB 27 C403 100nF [1] [5] ADC_A SMPCLK_A C401 4.
43B Service Information R354 R356 261E V356 BC858CLT1 +5VA V395 Not_placed R173 348E R324 215k R323 34.8k TRIG_B [2] + R171 348E 3 TP303 [1,2] REFN 14 6 10 11 59 3 1 5 2 4 19 12 13 16 9 15 R306 21.5k C306 100nF GAINREFN -1.23V REFERENCE VCC5REF VCC3REF VEEREF R302 10k 100k R310 10k R309 R305 10k R301 5.
3 PROBEB V+ + OPA364 N401 4 - out 1 ROW0 ROW1 ROW2 ROW3 ROW4 ROW5 C492 100nF PROBEB_D TP475 V- R482 82.5E 1.0Meg 2 ROW0 ROW1 ROW2 ROW3 ROW4 ROW5 COL0 COL1 COL2 COL3 COL4 COL5 ONKEY 1 B403 2 4 3 5 0 M Hz C481 18pF C490 180pF +VD +VD TP474 R484 511E B402 3.
43B Service Information 5 ST8558A 090220 ST8559-1.WMF Figure 9-6.
9 Circuit Diagrams 9.2 Schematic Diagrams VGARVAL 1 FLYBACK-CONVERTOR 6 R570 1 100k LINEAR SUPPLY L503 330E -30VD R509 46.4E 47uA C509 1uF TP504 C506 47nF C554 1uF 11 10 TEMP 5 TEMPHI 4 IBATP 9 VBAT 3 VBAT RCCHA1 RCCHA2 TEMP TEMHI IBATP VBATMEAS +3V3GAR VCOIL FLY BOOST SNUB GNDD C551 100nF 49 FLY GATE C534 100nF [7] BATVOLT [7] BATTEMP R528 34.8k P3V3SADC POWONOFF FREQPS NETVALD CHARCURR [7] BATCUR COSC GNDO [4] REFP C529 100nF 1 + 2 V302 LM4041CIM3X-1.
43B Service Information 7 SLOW ADC +3V3SADC +3V3A +3V3SADC C598 +3V3SADC 100nF [6] BATCUR [6] BATVOLT [6] BATTEMP [5] LCDTEMP1 [5,6] BATIDENT [1] DACTESTA [2] DACTESTB [4,5] DACTESTT VBAT C591 100nF C592 100nF 8 7 6 5 TP601 R605 10k C604 1uF C605 1nF UC3872DW R618 100k 2 V602 MBRS340T3 MS453 C602 2 C608 100nF 2 5 6 C606 100nF 6 5 [5] C595 100nF IR SFH487-2 2 V603 BAS16 1 1 4 SADCLEV +3V3SADC H522 Optical Port C613 1uF 3 SFH229F 3 R609 237E +3V3D V605 BC858CLT1 SIT07
Circuit Diagrams 9.2 Schematic Diagrams 1 2 3 4 9 5 D R2 R1 C B A Figure 9-9.
43B Service Information 1 2 3 A B C D Figure 9-10.
Chapter 10 Modifications Title Page 10.1 Software modifications ..............................................................................10-3 10.2 Hardware modifications.............................................................................
10 Modifications 10.1 Software modifications 10.1 Software modifications Changes and improvements made to the test tool software (firmware) are identified by incrementing the software version number. These changes are documented on a supplemental change/errata sheet which, when applicable, is included with the Information Package. To display the software version, proceed as follows: 1. Press to open the MENU. 2. Press 3. Press to highlight INSTRUMENT SETUP. to select INSTRUMENT SETUP. 4. Press 5.
43B Service Information 10-4
