Table Of Contents - Philips PCL304 Service Manual

TABLE OF CONTENTS
1. SYSTEM UNIT
4.1. Technical specifications
page
1-1
1.3. Input/output specification
2. GENERAL SYSTEM DESCRIPTION
2.1 Introduction
2.2. Main board
2.2.1 Processor
2.2.2 Memory
2.2.3 RAM
2.2.4 ROM
2.2.55 /O connections
2.2.6 Serial & parallel port assignments
2.2.7 Video graphics adapter
2.2.8 Video BIOS ROM
2.3 Power supply
2.3.1 Power low indicator
2.3.2 Recharging a battery
2.3.3 Power conservation
2.3.4 Standby mode
2.4 Keyboard
2.5 Video
2.6 Hard disk drive
2.6.1 Conner CP4044
2.7.' Floppy disk drive
2.7.1. Sony MPE-220
3 CONFIGURATIONS
3.1 System upgrades
3.2 System memory configurations
3.2.1 Expanded memory
3.2.2 Address map
4. SYSTEM UTILITY
4.1 Setup
4.1.1 Setup page
1-4
2-1
2-2
2-2
2-3
2-4
2-5
2-5
2-5
2-5
2-6
2-6
2-7
2-8
2-8
2-8
2-8
2-8
3-1
3-1
3-2
4-1
4-2
5. SYSTEM UNIT ASSEMBLY/DISASSEMBLY
5.1. Assembly/Disassembly
5.1.1 Top cover removal
5.1.2 Keyboard removal
5.1.3 Power board removal
5.1.4 Mother board removal
5.1.5 Floppy disk drive removal
5.1.6 Hard disk removal
5.2 Mechanical
5.2.1 Parts list cabinet
5.2.2 Exploded view
5.3. Interconnections
5.3.1 Wiring diagram
5-1
5-2
5-3
5-4
5-4
5-4
5-6
5-7
5-8
6.1
6.2
6.2.1
6.2.2
6.3
6.4
6.4.1
6.4.2
6.4.3
6.4.4
6.4.5
6.4.6
6.4.7
6.5
6.6
7.1
7.2
8.1
8.1.1
8.1.2
8.1.3
8.1.4
8.1.6.
8.1.7.
8.2
8.2.1
8.2.2
8.2.3
15-07-1991
DIAGNOSTICS
Functional testprogram
Error messages
Power On Test messages
User diagnostic messages
Outline diagnostic test
Diagnostic description
Main board
RAM diagnostics
Keyboard diagnostics
Video diagnostics
Floppy disk diagnostics
Serial port diagnostics
Printer port diagnostics
Power on selftest error codes
Tools and test equipment
VOLTAGE ADAPTER
Specifications
Parts list
CIRCUIT BOARD ASSEMBLIES (CBA)
Main board
Main board assembly
Connector pin assignment
Block diagram
CBA component layout
1. Topside
2. Bottom side
Circuit diagrams
1. AT control section
2. Processor section
3. Keyboard interface
4. . Clock & Buffer section
5. BIOS module connector
6. Memory slot circuitry
7. Supply connector
8. Keyboard controller & interface
9. VGAcontroller
10. Video DRAM circuitry
11. Buffer section
12. CRT interface & LCD connection
13. Serial & parallel interface
14. FDD & HDD circuitry
15. Connector circuitry
16. Expansion circuitry
17. VGA interface circuitry
Parts list
Troubleshoot flow chart
Power board
Power supply assembly
Connector pin assignment
Block diagram
page
6-1
6-2
6-3
6-4
6-4
6-5
6-5
6-5
6-5
6-5
6-6
6-6
8-9
8-10
8-14
8-12
8-13
8-14
8-15
8-16
8-17
8-18
8-19
8-20
8-21
8-22
8-23
8-24
8-25
8-26
8-28
8-31
8-31
8-32
CS 55 790