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190 Series III

Service Manual

Parts List

This section contains a list of replaceable parts for all the models of the Test Tool. Parts are

listed by assembly and alphabetized by item number or reference designator. The figures

show the location of each part and the item number or reference designator.
The parts list shows:



Description



Ordering code

Caution

Electrical components, and in particular active components such as ICs,

transistors, and diodes, may be damaged by static discharge.
Only qualified personnel at a static-free workstation should handle and service

static-sensitive components and assemblies.

How to Obtain Parts

To locate an authorized service center, go to

www.fluke.com

In the event that the part ordered has been replaced by a new or improved part, the

replacement will be accompanied by an explanatory note and installation instructions, if

necessary.
To ensure prompt delivery of the correct part, include the following information when you

place an order:



Instrument model (for example, 190-502-III) and serial number (25530001) that is printed

on the type plate on the bottom cover



Ordering code



Item number - Reference designator



Description



Quantity

Содержание ScopeMeter 190 Series III

Страница 1: ...ol Models 190 xxx III 190M x III MDA 550 III Service Manual 3 2022 English 2022 Fluke Corporation All rights reserved Specifications are subject to change without notice All product names are trademar...

Страница 2: ...n warranty service contact your nearest Fluke authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty pos...

Страница 3: ...quency Test 15 Input A B C D Peak Measurements Test 16 Input A B C D Frequency Measurement Accuracy Test 17 Input A B C D Phase Measurements Test 18 Time Base Test 19 Input A B C D Trigger Sensitivity...

Страница 4: ...Models 44 Input AB LF HF Gain and Position 45 Input Pos ABCD AB Calibration 45 Input ABCD AB Noise F FBW Calibration 45 Input AB Volt Gain 46 DMM Calibration 47 Multimeter Meter Zero 47 Multimeter Vo...

Страница 5: ...ration operates worldwide For local contact information go to our website www fluke com To register your product or to view print or download the latest manual or manual supplement go to our website 1...

Страница 6: ...re touching or handling any PCBs or components Minimize handling Handle static sensitive parts by non conductive edges Do not slide static sensitive components over any surface When removing plug in a...

Страница 7: ...specification see Specifications The values given here are valid for ambient temperatures between 18 C and 28 C The Performance Verification Procedure is a quick check of all main specifications for...

Страница 8: ...ied with Test Tool General Operation Instructions Use these general instructions for all tests 1 Power the Test Tool with the BC190 power adapter The battery pack must be installed 2 Allow the specifi...

Страница 9: ...keys to highlight the function 4 Press E to confirm the selection The active function in the next menu group is highlighted If the confirmation is made in the last most right menu group the menu will...

Страница 10: ...pe Voltage Attenuation 1 1 11 Press A The inverse text indicates the actual settings 12 Press 3 to change the PROBE A setting 13 Select Probe Type Voltage Attenuation 1 1 14 Press P 15 Press 1 READING...

Страница 11: ...before making any connection between the calibrator and the Test Tool Dangerous voltages are present on the calibration source and connection cables during these steps Note The test steps for channel...

Страница 12: ...I to clear the softkey menu and see the full display Note The 10 kHz bandwidth limiter rejects calibrator noise It does not affect the gain accuracy at a 50 Hz input signal 3 Press A and use j and k...

Страница 13: ...cy check the allowed V1 V2 60 mV 0 021 x 60 0 08 x 10 60 mV 1 26 0 8 60 mV 2 06 mV Exception 2 mV div where accuracy is 2 9 0 08 range div Table 2 Vertical Accuracy Verification Points Range Initial 5...

Страница 14: ...dard Test Tool Setup Press S 2 RECALL and select SETUP b Press E select the setup name and press E to recall the setup c Press A press 4 INPUT A OPTIONS and select Attenuator Normal Bandwidth 10 kHz f...

Страница 15: ...olt and Standby Table 3 Volts DC Measurement Verification Points Range 5502A Output V DC Reading 2 mV div 6 0 mV 4 9 to 7 1 6 0 mV 7 1 to 4 9 5 mV div 15 0 mV 14 2 to 15 8 15 0 mV 15 8 to 14 2 10 mV d...

Страница 16: ...the 5502A See Figure 3 2 Select the Test Tool setup a Recall the created setup see Standard Test Tool Setup Press S 2 RECALL and select SETUP press E select the setup name and press E to recall the s...

Страница 17: ...c Reading 3 on C V ac Reading 4 on D V ac 5 Use V to change the time base and lock on 20 s div for the 20 kHz signal and on 10 ms div for the 60 Hz signal 6 Use j and k to select the manual vertical r...

Страница 18: ...Set channel Bandwidth 20 MHz 20 mV div 40 mV 20 kHz 37 5 mV to 42 5 mV 50 mV div 100 mV 20 kHz 96 0 mV to 104 0 mV 100 mV div 200 mV 20 kHz 180 mV to 220 mV 200 mV div 400 mV 20 kHz 375 mV to 425 mV 5...

Страница 19: ...4 on D V ac d Press A and use 2 to select COUPLING AC e Press B and use 2 to select COUPLING AC f Press C and use 2 to select COUPLING AC g Press D and use 2 to select COUPLING AC h Press I to clear t...

Страница 20: ...setup name and press E to recall the setup b Press P c Press 2 READING and select with 1 READINGS and h i Reading 1 on A Peak and next Peak Peak Reading 2 on B Peak and next Peak Peak Reading 3 on C P...

Страница 21: ...o recall the setup b Press P c Press 2 READING and select with 1 READINGS and h i Reading 1 on A Hz Reading 2 on B Hz Reading 3 on C Hz Reading 4 on D Hz 3 Use j and k to select range 100 mV div for A...

Страница 22: ...ecall the setup see Standard Test Tool Setup Press S 2 RECALL and select SETUP press E select the setup name and press E to recall the setup b Press P c Press 2 READING and select with 1 READINGS and...

Страница 23: ...he 5502A to 0 zero Volt and Standby Time Base Test To test the time base accuracy 1 Connect the Test Tool to the 5502A as shown in Figure 5 For the Fluke 190 502 190 504 and MDA 550 III you must use t...

Страница 24: ...e is indicated in the lower right of the display See Figure 6 Adjust the trigger delay time to 8 000 ms A 8 00 ms Figure 6 Time Base Verification e Use V to set the time base on 10 s div f Use N to mo...

Страница 25: ...is triggered The trigger icon indicates the trigger level 8 Continue through the test points When you are finished set the 5502A to Standby Table 9 Input Trigger Sensitivity Test Points UUT Model UUT...

Страница 26: ...se 1 to select Input B as trigger source 5 Use j and k to change the sensitivity range to select manual sensitivity ranging and lock the Input B sensitivity range on 2 V div 6 Repeat step 4 to step 8...

Страница 27: ...to turn Input C on 4 Press C and use l to move the Input C trace zero to the center grid line 5 Press T and use 1 to select Input C as trigger source 6 Use j and k to change the sensitivity range to s...

Страница 28: ...lect manual sensitivity ranging and lock the Input D sensitivity range on 2 V div 7 Repeat step 4 to step 8 same as for the Input A trigger test When you are finished set the 5502A to Standby Input A...

Страница 29: ...Continue through the test points When you are finished set the 5502A to Standby Input B AC Voltage Accuracy HF and Bandwidth Test To test the Input B high frequency automatic scope ac voltage measure...

Страница 30: ...ut C high frequency automatic scope ac voltage measurement accuracy and bandwidth 1 Connect the Test Tool to the 5502A See Figure 8 2 Select the Test Tool setup a Recall the setup see Standard Test To...

Страница 31: ...ame and press E to recall the setup b Press P then press 2 READING and select READINGS 4 on D V ac c Press J to select autoranging AUTO in upper right LCD edge d Use j and k to change the sensitivity...

Страница 32: ...Noise Reject E NCycle Off E 8 Use 1 EDGE TRIG to select Ext 9 Use 2 SLOPE to select positive slope triggering 10 Use 3 Ext LEVEL to select 1 2 V 11 Set the 5502A to source 0 4 V dc 12 Verify that no...

Страница 33: ...Press 1 to open the Measurement menu and select V dc 5 Press E 6 Press J to select MANUAL ranging Use j and k to select the ranges 7 Set the range to the first test point in Table 11 8 Set the 5502A t...

Страница 34: ...anging Use j and k to select the ranges 7 Set the range to the first test point in Table 12 8 Set the 5502A to source the appropriate ac voltage 9 Observe the reading and check that it is within the r...

Страница 35: ...t the 5502A to Standby Diode Test Function Test To test the diode function 1 Select the Test Tool setup 2 Press M 3 Press 1 to open the Measurement menu and select Diode 4 Connect the Test Tool to the...

Страница 36: ...s the 5502A will turn off the COMP 2 wire mode 8 Observe the reading and check that it is within the range shown under the appropriate column 9 Continue through the test points When you are finished s...

Страница 37: ...probe calibration The first step is to manually adjust the square wave response to a pure square wave pulse top must be straight The trimmer is located in the probe housing near the BNC and can be rea...

Страница 38: ...he calibration date and number 1 Press U then press 3 to see the version and calibration data 2 Press 4 to close the version and calibration menu Note The calibration date and calibration number do no...

Страница 39: ...scilloscope inputs 2 Coax Cables are sufficient 50 feed through termination Fluke TRM50 4x for Test Tools with 4 BNC oscilloscope inputs 2x for Test Tools with banana jacks and 2 BNC oscilloscope inpu...

Страница 40: ...adjust the date with h i Press E to activate all selections and leave the menu 3 Select the calibration mode The Calibration Adjustment Procedure uses built in calibration setups that can be accessed...

Страница 41: ...re entering this step the calibration process is not started The calibration data are invalid This means that the last time this step was done the calibration was not successful Most probably the uni...

Страница 42: ...Pre Calibration The display shows the calibration step in progress and status The first step is WarmingUp CL 0200 BUSY 00 29 59 or WarmingUp1 CL 0200 BUSY 00 09 59 The warming up period is counted do...

Страница 43: ...Up and Pre Calibration If you want to exit and maintain the old calibration data 1 Turn off the Test Tool Final Calibration Before you start the final calibration do the Warming Up and Pre Calibratio...

Страница 44: ...calibration step CL 0570 ADC Timing 5 Connect Ch A of the Test Tool to the 5502A SCOPE output See Figure 13 Use a 50 termination 6 Set the 5502A to generate a sine wave 50 25 MHz 0 5 V pp mode LEVSIN...

Страница 45: ...point signal and start the calibration Continue through all calibration points for Input A LF HF Gain 7 Wait until the display shows calibration status CL 0461 READY When you are finished set the 550...

Страница 46: ...nput D LF HF Gain are for 4 channel ScopeMeters 190 104 190 204 190M 4 190 504 and MDA 550 III models For 2 channel models see Input AB Position All Models To do the Input C LF HF Gain calibration 1 C...

Страница 47: ...ibration step in Table 14 Input D LF HF Gain 2 Connect Ch D of the Test Tool to the 5502A See Figure 16 3 Set the 5502A SCOPE output to source the signal required for the first calibration point in In...

Страница 48: ...500 mV to channel A and B 3 Press 3 to start the calibration Wait until the display shows calibration status CL 0637 READY Continue at the Input AB LF HF Gain and Position section Figure 17 Test Tool...

Страница 49: ...the calibration Continue through all calibration points of Input AB Gain and Position Set the 5502A to Standby and continue at the Input Pos ABCD AB Calibration section Input Pos ABCD AB Calibration...

Страница 50: ...AB to 5502A Normal Output 3 Set the 5502A to supply a 50 Hz voltage NORMAL output to the first calibration point in Input AB Volt Gain 4 Press 3 to start the calibration Wait until the display shows c...

Страница 51: ...ADY 4 Remove the input terminations Continue at the Multimeter Volt Gain section Multimeter Volt Gain XW Warning To prevent possible electrical shock fire or personal injury make sure that the calibra...

Страница 52: ...hm Gain Note The adjustment steps for the meter section are only for the models 190 062 190 102 190 202 190M 2 and 190 502 To do the DMM Ohm Gain calibration 1 Press 2 to select the CL 0910 calibratio...

Страница 53: ...2 Press 4 SAVE The Test Tool shows on the display Calibration data valid Save data and exit maintenance mode Note Calibration data valid indicates that the calibration adjustment procedure is performe...

Страница 54: ...90M 2 4 381 MHz Fluke 190 102 104 151 MHz Fluke 190 062 111 MHz SCOPE levsine 0 5 Vpp 501 MHz 381 MHz 151 MHz 111 MHz CL 0460 100 mVpp sine wave 50 kHz SCOPE levsine 100 mVpp 50 kHz CL 0461 100 mVpp s...

Страница 55: ...0550 2 5 Vpp square wave 1 kHz SCOPE edge 2 5 Vpp 1 kHz CL 0584 2 5 Vpp sine wave 50 kHz SCOPE levsine 2 5 Vpp 50 kHz CL 0585 2 5 Vpp sine wave Fluke 190 502 504 501 MHz Fluke 190 202 204 190M 2 4 381...

Страница 56: ...Fluke 190 102 104 151 MHz Fluke 190 062 111 MHz SCOPE levsine 500 mVpp 501 MHz 381 MHz 151 MHz 111 MHz CL 0466 100 mVpp sine wave 50 kHz SCOPE levsine 100 mVpp 50 kHz CL 0467 100 mVpp sine wave Fluke...

Страница 57: ...bration Points 2 channel models only CL 0890 no input see Multimeter Meter Zero SCOPE Off 0 V 0 Hz Operate DMM Volt Gain Calibration Points see Figure 19 CL 0840 500 mV 0 Hz SCOPE Off 500 mV 0 Hz CL 0...

Страница 58: ...n 5000 check input signal and test leads and press 2 to repeat the current step if nnnn 5000 check input signal and test leads and repeat the final calibration in the Warming Up 2 Warm Up Final and AD...

Страница 59: ...Test Tool itself Always remove the battery pack before completely disassembling the Test Tool Only qualified personnel using customary precautions against electric shock should work on a disassembled...

Страница 60: ...e input cover reinstall the four steel pins 2x17 mm in the left side and right side of the Test Tool The pins are used to attach the hang strap and the side strap 7 Remove the two screws M3x10 total l...

Страница 61: ...access the top side of the PCA How to Access the Bottom Side of PCA To avoid contaminating the flex cable contacts with grease from your fingers wear cotton gloves or do not touch these contacts Cont...

Страница 62: ...oil and Keypad To access 1 Unlock both flat cables by shifting the connector latch at the left and right edge using a small screwdriver The latch is an integral part of the connector body 2 Remove the...

Страница 63: ...y Procedures 59 Disassembly Steps See Figure 22 Figure 23 and Figure 24 for guidance on disassembly Note Figures may be subject to minor changes without prior notice Figure 22 Opened Case and Screws 2...

Страница 64: ...190 Series III Service Manual 60 Figure 23 Screening Plate Removed and Screws 4x 4x 4x 5 2 3 6 9 7 8 1 4...

Страница 65: ...ScopeMeter Test Tool Disassembly and Reassembly Procedures 61 Figure 24 PCA Removed from Chassis Bottom Side Visible 6 5 2 3 9 10 12 11 13 6x 1 14 15 8...

Страница 66: ...arge Only qualified personnel at a static free workstation should handle and service static sensitive components and assemblies How to Obtain Parts To locate an authorized service center go to www flu...

Страница 67: ...c for 4 channel 1 pc for 2 channel instruments 22 Tab Mounting Material Set 3981859 Self tapping Screw 10 mm 2x to fix input cover 22 Dowel 6x to fix straps 22 Steel Plate for Lock 22 Self tapping Scr...

Страница 68: ...Faston pins Sealing piece USB Probe black 24 Sealing piece DC power black 24 BNC Connector red 500 MHz 4306959 X1100 not shown individually BNC Connector blue 500 MHz 4306967 X1300 BNC Connector gray...

Страница 69: ...ble 24 Keypad 4 channels 190 III 5325387 24 Keypad 2 ch DMM 190 III 5325393 24 Keypad MDA 550 III 5325400 24 Keypad Foil all models 5325417 includes flat cable 24 DC Power Input Socket 190 III 430 II...

Страница 70: ...190 Series III Service Manual 66...

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