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SCOPEMETER PM93
Philips SCOPEMETER PM93 Manuals
Manuals and User Guides for Philips SCOPEMETER PM93. We have
1
Philips SCOPEMETER PM93 manual available for free PDF download: Service Manual
Philips SCOPEMETER PM93 Service Manual (284 pages)
Brand:
Philips
| Category:
Measuring Instruments
| Size: 10.18 MB
Table of Contents
Table of Contents
4
Caution and Warning Statements
8
Symbols
8
Safety Instructions
8
Safety Precautions
8
Introduction
8
Impaired Safety
9
General Safety Information
9
Characteristics
10
Display
10
Signal Acquisition
10
Channels a & B
11
Timebase
13
Trigger
14
Signal Memory (Models 95 and 97 Only)
15
Trace Display
15
Setup Memory (Model 95 Only)
15
Setup Memory (Model 97 Only)
16
Calculation Facilities (Model 95 Only)
17
Calculation Facilities (Model 97 Only)
17
Cursors (Models 95 and 97 Only)
18
Multimeter
18
Auto Setting
23
Generator (Model 93 and 95)
25
Generator (Model 97 Only)
25
Power Adaptor Ibattery Charger
26
Power Supply
27
Mechanical
28
Environmental
28
Interface (Model 97 Only)
30
Safety
31
Accessories
32
Service and Maintenance
32
Location of Electrical Parts
33
Circuit Descriptions
33
General
33
Introduction to Circuit Description
33
Functional Block Description
34
Introduction
34
Data Acquisition
38
Digital Circuits (A1)
42
Introduction
42
Overview Digital Circuits
42
MICROPROCESSOR Circuitry (Ilp)
43
DIGITAL ASIC (D-ASIC) Circuitry
45
LCD Circuitry
48
Analog Circuits (A2)
50
Introduction
50
Overview Analog Circuits
50
ATTENUATOR Sections, CHANNEL a and B
50
EXTERNAL (BANANA) INPUT/OUTPUT Circuitry
54
ANALOG ASIC (A-ASIC) and ADC Circuitry
56
Analog Control Circuit
60
GENERATOR Circuit
66
Battery Charger
68
Power Supply
70
Performance Verification Procedure
72
General Information
72
Standard Performance Verification Procedure
73
STANDARD PERFORMANCE VERIFICATION PROCEDURE Summary
87
Additional Performance Verification Procedure
88
Calibration Adjustment Procedure
99
General Information
99
Recommended Calibration Adjustment Equipment
99
Entering the Calibration Procedure
100
Operating the Calibration Procedure
101
Hardware SCOPE Calibration Adjustments
102
Scope Calibration Adjustment Procedure
102
Contrast Calibration Adjustment Procedure
102
Closed Case SCOPE Calibration Adjustments
107
Meter Calibration Adjustment Procedure
114
Calibration Adjustment Procedure Summary
123
Disassembling the Scopemeter
125
General Information
125
Disassembly Procedures
125
Removing the Battery Pack
126
Removing the Analog A2 PCB, to Enable Hardware SCOPE Calibration Adjustments
128
Removing the Digital a 1 PCB
128
Corrective Maintenance
130
Diagnostic Testing and Troubleshooting
130
Introduction
130
Troubleshooting Techniques
130
Display and Error Messages
131
Operation Verification Procedure
134
Main Tests
134
Performance Verification Procedure
136
Troubleshooting
136
Trouble Shooting Hints
136
Digital A1 PCB Troubleshooting
136
Powering the Scopemeter
136
Kernel Test
136
Test Point Signals
138
Default Signals Measured in the Digital Circuits
140
Soft-2
156
Analog A2 PCB Troubleshooting
157
Test Point Signals
157
Default Signals Measured on the Analog A2 Pcb
160
Replacements
169
Special Parts
169
Standard Parts
169
Static-Sensitive Components
169
Transistors and Integrated Circuits
169
Replacement of Parts
171
Replacing Parts in the Battery Compartment
171
Replacing Parts on Front Cover
172
Replacing Parts on Bottom Cover
174
30-Pole Flat Cable Replacement
176
Stand Replacement
176
Input Unit Assembly Replacement
177
Top Cover Assembly Replacement
177
Keypad Replacement
178
Liquid Crystal Display (LCD), Contact Strips and Backlight Foil (Model 97 Only) Replacement
178
General Soldering Techniques
180
Soldering Micro-Miniature Semiconductors
180
Soldering Techniques
180
Extender Flat Cable
181
Instrument Repacking
181
Recalibration after Repair
181
Special Tools
181
Maintenance of the Primary Circuit (Pm89071
182
Replaceable Parts List
191
Circuit Diagrams
219
Soft-2
228
A Ac/DC
231
Autoset
231
B MV
231
CHAN-Alb
231
Cursor 2 R
231
Down
231
Math
231
Meter
231
Trigger
231
Waveform
231
Digital Board a 1 Revision Level Overview
268
Hardware Modifications, Pcb Revision Levels
268
Modifications
268
Analog Board A2 Revision Level Overview
271
Firmware Modifications
279
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