Fluke ScopeMeter 199B User manual

Fluke 19xB-19xC-2x5C
ScopeMeter
models 192B,196B,199B,192C,196C,199C,215C,225C
Service Manual
PN 4822 872 05391
September 2002, rev.2, Oct.09
© 2002-2009 Fluke Corporation, All rights reserved.
All product names are trademarks of their respective companies.

PLACING ORDERS AND GETTING ASSISTANCE
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:
[phone] in U.S.A. and Canada
[phone] in Europe
[phone] from other countries

i
Table of Contents
Chapter Title Page
1 Safety Instructions...............................................................................1-1
1.1 Introduction..................................................................................................1-3
1.2 Safety Precautions........................................................................................1-3
1.3 Caution and Warning Statements.................................................................1-3
1.4 Symbols .......................................................................................................1-3
1.5 Impaired Safety............................................................................................1-4
1.6 General Safety Information..........................................................................1-4
2 Characteristics.....................................................................................2-1
3 List of Replaceable Parts ....................................................................3-1
3.1 Introduction..................................................................................................3-3
3.2 How to Obtain Parts.....................................................................................3-3
3.3 Final Assembly Parts ...................................................................................3-4
3.4 Main PCA Unit Parts ...................................................................................3-6
3.5 Accessories ..................................................................................................3-8
4 Performance Verification .................................................................... 4-1
4.1 Introduction..................................................................................................4-3
4.2 Equipment Required For Verification .........................................................4-3
4.3 General Instructions.....................................................................................4-3
4.4 Operating Instructions..................................................................................4-4
4.4.1 Resetting the test tool ...........................................................................4-4
4.4.2 Navigating through menu’s ..................................................................4-4
4.4.3 Creating Test Tool Setup1....................................................................4-5
4.5 Display and Backlight Test..........................................................................4-5
4.6 Scope Input A&B Tests ...............................................................................4-7
4.6.1 Input A&B Vertical Accuracy Test ......................................................4-7
4.6.2 Input A&B DC Voltage Accuracy Test................................................4-9
4.6.3 Input A&B AC Voltage Accuracy Test (LF) .......................................4-11
4.6.4 Input A & B AC Coupled Lower Frequency Test...............................4-12
4.6.5 Input A and B Peak Measurements Test..............................................4-13
4.6.6 Input A&B Frequency Measurement Accuracy Test ...........................4-14
4.6.7 Input A&B Phase Measurements Test..................................................4-15
4.6.8 Time Base Test .....................................................................................4-16
4.6.9 Input A Trigger Sensitivity Test...........................................................4-17
4.6.10 Input A AC Voltage Accuracy (HF) & Bandwidth Test ....................4-19
4.6.11 Input B Trigger Sensitivity Test .........................................................4-20
4.6.12 Input B AC Voltage Accuracy (HF) & Bandwidth Test ....................4-21
4.6.13 Video test using the Video Pattern Generator ....................................4-22

Fluke 19xB-19xC-2x5C
Service Manual
ii
4.6.14 Video test using SC600 Scope Calibration Option ............................4-24
4.7 External Trigger Level Test .........................................................................4-27
4.8 Meter (DMM) Tests.....................................................................................4-28
4.8.1 Meter DC Voltage Accuracy Test ........................................................4-28
4.8.2 Meter AC Voltage Accuracy & Frequency Response Test .................4-29
4.8.3 Continuity Function Test......................................................................4-30
4.8.4 Diode Test Function Test .....................................................................4-30
4.8.5 Ohms Measurements Test.....................................................................4-30
4.9 Probe Calibration Generator Test ................................................................4-32
5 Calibration Adjustment ....................................................................... 5-1
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..............................................................................5-3
5.1.4 Equipment Required For Calibration ...................................................5-4
5.2 Calibration Procedure Steps.........................................................................5-4
5.3 Starting the Calibration................................................................................5-4
5.4 Contrast Calibration Adjustment .................................................................5-6
5.5 Warming Up & Pre-Calibration...................................................................5-7
5.6 Final Calibration ..........................................................................................5-8
5.6.1 Input A LF-HF Gain.............................................................................5-8
5.6.2 Input B LF-HF Gain .............................................................................5-9
5.6.3 Input A&B LF-HF Gain .......................................................................5-11
5.6.4 Input A&B Position.............................................................................5-12
5.6.5 Input A&B Volt Gain ...........................................................................5-13
5.6.6 DMM Volt Gain ...................................................................................5-14
5.6.7 Input A& B, and DMM Zero................................................................5-15
5.6.8 DMM Ohm Gain ..................................................................................5-16
5.6.9 Calculate Gain...........................................................................................5-17
5.7 Save Calibration Data and Exit....................................................................5-17
5.8 Probe Calibration .........................................................................................5-19
6 Disassembling the Test Tool.............................................................. 6-1
6.1. Introduction.................................................................................................6-3
6.2. Disassembly & Reassembly Procedures .....................................................6-3
6.2.1 Required Tools .....................................................................................6-3
6.2.2 Removing the Tilt Stand & Hang Strap................................................6-3
6.2.3 Replacing the Side-Strap, Changing the Side-Strap Position...............6-3
6.2.4 Opening the Test Tool, Removing the Battery.....................................6-3
6.2.5 Removing the Main PCA Unit and the Fan..........................................6-5
6.2.6 Removing the Display Assembly .........................................................6-6
6.2.7 Replacing the LCD Window/Decal......................................................6-7
6.2.8 Removing the Keypad and Keypad Foil...............................................6-7
6.2.9 Disassembling the Main PCA Unit.......................................................6-7
6.2.10 Reassembling the Main PCA Unit......................................................6-8
6.2.11 Reassembling the Test Tool ...............................................................6-9

iii
List of Tables
Table Title Page
3-1.Final Assembly Parts...................................................................................3-4
3-2.Main PCA Unit Parts...................................................................................3-6
3-3.Standard Accessories...................................................................................3-8
3-5.Optional Accessories ...................................................................................3-9
4-1.Vertical Accuracy Verification Points.........................................................4-8
4-2. Volts DC Measurement Verification Points...............................................4-10
4-4.Input A&B AC Input Coupling Verification Points....................................4-13
4-5.Volts Peak Measurement Verification Points..............................................4-14
4-6.Input A&B Frequency Measurement Accuracy Test ..................................4-15
4-7.Phase Measurement Verification Points......................................................4-16
4-8.Input A Trigger Sensitivity Test Points.......................................................4-18
4-9.HF AC Voltage Verification Points.............................................................4-19
4-11.HF AC Voltage Verification Points...........................................................4-21
4-12.Meter Volts dc Measurement Verification Points .....................................4-28
4-13.Meter Volts AC Measurement Verification Points....................................4-29
4-14.Resistance Measurement Verification Points ............................................4-31
5-1.Input A HF-LF Gain Calibration Points ......................................................5-9
5-2.Input B LF-HF Gain Calibration Points ......................................................5-10
5-3.Input A&B Gain Calibration Points ............................................................5-12
5-4.Input A&B Gain Calibration Points ............................................................5-14
5-5.DMM Gain Calibration Points ....................................................................5-15
5-6.Ohm Gain Calibration Points ......................................................................5-17

Fluke 19xB-19xC-2x5C
Service Manual
iv

v
List of Figures
Figure Title Page
3-1.Final Assembly Details................................................................................3-5
3-2. Main PCA Unit...........................................................................................3-7
3-3.Rubber Spacer on Shielding Box Assy........................................................3-7
4-1.Menu item selection.....................................................................................4-4
4-2. Display Test Pattern ...................................................................................4-6
4-3.Test Tool Input A&B to 5500 Normal Output ............................................4-7
4-4.5500 Scope Output to Test Tool Input A&B...............................................4-14
4-5.5500A Scope Output to Test Tool Input A..................................................4-16
4-7.5500A Scope Output to Test Tool Input B..................................................4-20
4-8.Test Tool Input A to TV Signal Generator..................................................4-22
4-9.Trace for PAL/SECAM line 622 .................................................................4-23
4-10.Trace for NTSC line 525 ...........................................................................4-23
4-11.Trace for PAL/SECAM line 310 ...............................................................4-23
4-12.Trace for NTSC line 262 ...........................................................................4-23
4-13.Test Tool Input A to TV Signal Generator Inverted..................................4-24
4-14.Trace for PAL/SECAM line 310 Negative Video.....................................4-24
4-15.Trace for NTSC line 262 Negative Video .................................................4-24
4-16.Test Tool Input A to TV Signal Generator................................................4-25
4-17.SC600 Marker Pulse..................................................................................4-26
4-18.Test Tool Meter/Ext Input to 5500A Normal Output................................4-27
4-19.Test Tool Input A to 5500A Normal Output 4-Wire.................................4-31
5-1.Version & Calibration Data.........................................................................5-3
5-2.Display Test Pattern ....................................................................................5-7
5-3.5500A SCOPE Output to Test Tool Input A...............................................5-8
5-4.5500A SCOPE Output to Test Tool Input B ...............................................5-10
5-5.Test tool Input A&B to 5500 Scope Output ................................................5-11
5-6.Test tool Input A&B to 5500 Normal Output..............................................5-13
5-7.5500A NORMAL Output to Test Tool Banana Input.................................5-15
5-8.Four-wire Ohms calibration connections.....................................................5-16
5-9.10:1 Probe Calibration Connection .............................................................5-19
5-10.10:1 Probe Calibration...............................................................................5-19
6-1.Loosen 2 Input Cover Screws......................................................................6-4
6-2.Loosen 2 Bottom Holster Screws ................................................................6-4
6-3.Opening the Test Tool .................................................................................6-4
6-4.Removing the Battery Pack .........................................................................6-4
6-5.Final Assembly Details................................................................................6-5
6-6.Flex Cable Connectors ................................................................................6-6
6-7.PCA Unit Assembly ....................................................................................6-8

1-1
Chapter 1
Safety Instructions
Title Page
1.1 Introduction.................................................................................................. 1-3
1.2 Safety Precautions........................................................................................ 1-3
1.3 Caution and Warning Statements................................................................. 1-3
1.4 Symbols ....................................................................................................... 1-3
1.5 Impaired Safety............................................................................................ 1-4
1.6 General Safety Information.......................................................................... 1-4