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LaserJet 9040
Service manual
HP LaserJet 9040 Service Manual
Hp 9000 series 500 computers service manual
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Also See for LaserJet 9040
:
Supplementary manual
(24 pages)
,
Installation manual
(72 pages)
,
Handbook
(95 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Chapter 1. General Information
Introduction
Description
Warnings, Cautions, and Notes
Repair Philosophy
Ac Components/Power Cords
Safety
General Safety Procedure
Safety Guidelines for High-Voltage Testing
Grounding Requirements
Computer Cleaning
Case
Air Intake Filter (HP 9040 Only)
Chapter 2. Theory of Operation
Introduction
Computer Block Diagram
Computer Interconnection Diagram
Power Supply Assembly
Ac Module
Primary Board
Secondary Board
Supervisor Board
Status Leos
Processor Stack
Processor Stack Block Diagram
Stack Configurations
Clock Board
Stack Boards
Stack Motherboard
Cooling
Memory
Power Interlock Switch
Memory Organization - 256K Byte RAM Board
Memory Healing
Memory Healing
Memory Organization - 512K Byte RAM Board
Megabyte Memory Organization
Memory Organization - 1 Megabyte RAM Board
Megabyte Memory Mapping Operation
Lop Bus
Megabyte Memory Healing
System Control Module
System Control Module Block Diagram
Register Allocations
Real-Time Clock (RTC) and Non-Volatile Memory (NVM)
Loader ROM
Loader ROM Flowchart
High Temperature Warning
Power-Fail Warning
Self-Test
Service Panel Interface
14.7456 Mhz Clock
Non-Maskable Interrupt
Service Panel Switches
Service Panel
Switches
Light Emitting Diodes (Leos)
Service Panel Lockout
Chapter 3. Testing and Troubleshooting
Introduction
Troubleshooting and Repair Strategy
Problem Isolation
Fault-Free Power-Up Sequence
Fault Indicators
Service Processor Code
Service Processor Code Flowchart
Loader ROM Test Module
Loader ROM Test Module Flowchart
System Loader Messages
Introduction
Messages
HP-UX 4.0 Operating System Error Messages
Warning and Error Messages
Fatal Error Message
Fatal Error Message
System Error Messages
Self-Tests and Diagnostics Overview
Module Self-Tests
Self-Test Supervisory Code
System Diagnostics
Early Warning/Fault Tolerance
Overtemperature
Memory Errors
Real-Time Clock (RTC) and Non-Volatile Memory (NVM)
Chapter 4. Assembly Access
Introduction
General Safety Procedures
Electrostatic Discharge
Case Parts
HP 9030 (System II Enclosure)
HP 9040 (Stand-Alone Cabinet)
Replaceable Assemblies
System Control Module (SCM)
Power Supply Assembly
Processor Stack Boards
Processor Stack Clock Board
Processor Stack Motherboard
Ac Power Cord
Line Filter
Power Switch Assembly
Power Supply Cable
Service Panel Board
Service Panel Cable
Exchange Parts
Non-Exchange Parts
Parts List (Figure 5-1)
Exploded View #2
Motherboard Connectors
Motherboard Signal Definitions
SCM Connectors
SCM Signal Definitions
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See also:
Handbook
HP 9000 Series 500 Computers
Models
530/540
HP
9030/9040
Service Manual
Flin-
HEWLETT
.:~ PACKARD
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