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70004A
Service manual
HP 70004A Service Manual
Color display
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Also See for 70004A
:
Installation and verification manual
(64 pages)
,
Service manual
(130 pages)
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Table Of Contents
131
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of
131
Go
/
131
Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
General Safety Considerations
Servicing at a Glance
In this Book
Contents
Figures List
Tables List
What Is Servicing?
When Is Servicing Needed?
Determining Your Color Display's Serial Number
Packaging for an 8/8 Module
Module Veri Cation Software
Before Extensive Servicing
If an E Is Flashing in the Display Status Box
Troubleshooting
Preparing a Static-Safe Work Station
Reducing ESD Damage
Accessories
If Display-Disruptive Errors Occur
If Hardware-Warning Errors Messages (6000-6999) Occur
If Hardware Error Messages (7000-7999) Occur
Overall Block Diagram of Color Display
Display Troubleshooting
A5 Processor Diagnostics Location
Power Supply Diagnostic Tools
Display Diagnostic Tools, Turn-On
Display Diagnostic Tools, Front-Panel
Display Diagnostic Tools, Failures
HP-MSIB Diagnostic Tools
Test Pattern Diagnostic Tools
Decimal/Hexadecimal Conversion
Troubleshooting the Power Supply
No Observed Power. the Front-Panel Power Indicator Is off
Voltage Selector Switch
The Fault Indicator Light (A4DS6) Is Lit
The I Limit Fault Indicator Light (A4DS5) Is Lit
Front-Panel Line Indicator Is Off. Modules Have Power
Normal Operation Except Display Is Blank
Front-Panel Indicators Normal, no Module Power
Component-Level Hints
Display and Processor Troubleshooting
Identifying the Failed Assembly
Display Disruptive Messages
Abnormal CRT Display
Memory Card Troubleshooting
Processor Component-Level Troubleshooting
Select Mode Test
Test Descriptions
Service Tests
Troubleshooting Leds and DIP Switch Map
Service Test List
HP-MSIB and HP-IB Troubleshooting
HP-MSIB Fault Indicator Light Is Lit
HP-MSIB Troubleshooting, HP-MSIB Light Is off
HP-MSIB Module Connector
HP-IB Troubleshooting
Recommended Test Equipment Tables
Adjustment Procedures
Power Supply Adjustments
Low Line Adjustment
Current Limit Adjustment
Output Voltage Adjustment
+65 Volt Adjustment
Monitor Adjustments
Vertical Centering Adjustment
Display Intensity Adjustment
Module Veri Cation Tests
Equipment Calibration
Replacing Major Assemblies
Front Panel Replacement
Monitor/Monitor Bracket Replacement
Power Supply Replacement
Processor Replacement
HP-MSIB Replacement
Rear Frame
Custom Key-Panel Assembly Replacement
Overall Parts Identi Cation Drawings
Front View Identi Cation
Index
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Service Guide
Table of
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Table of Contents
Troubleshooting
Troubleshooting
23
Display Troubleshooting
33
Troubleshooting the Power Supply
38
Display and Processor Troubleshooting
55
Memory Card Troubleshooting
56
Troubleshooting LEDs and DIP Switch Map
61
HP-MSIB and HP-IB Troubleshooting
69
HP-MSIB Troubleshooting, HP-MSIB Light is Off
72
HP-IB Troubleshooting
75
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