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Z-89
Zenith Z-89 Manuals
Manuals and User Guides for Zenith Z-89. We have
1
Zenith Z-89 manual available for free PDF download: Service Manual
Zenith Z-89 Service Manual (122 pages)
Computer System
Brand:
Zenith
| Category:
Desktop
| Size: 6.4 MB
Table of Contents
Table of Contents
4
Specifications
5
Cpu Boards Z·89/90
6
Setup and Testing
7
Power Line Considerations
7
Cabinet Removal
8
Zds System Configuration
9
Terminal Logic Circuit Board
9
CPU Logic Circuit Board
12
Serial Interface
28
Memory Map
30
I/O Port Usage
30
Operation
31
Command Summary
31
Keyboard Operation
33
Normal Modes and Keys
35
Circuit Description
39
Power Supply Circuit
40
Video Deflection Circuit Board
41
Video Driver Circuit Board
44
Terminal Logic Circuit Board
44
CPU Logic Circuit Board
53
Serial Interface I/O Circuit Board
59
Service
61
CRT Adjustment
62
Switch Configurations
64
CPU Logic Circuit Board
66
Rotational Speed Test
82
Memory Testing
83
Troubleshooting Charts
85
Circuit Board X-Ray Views
89
Semiconductor Identification Charts
95
Component Number Index
95
Part Number Index
98
Replacement Parts List
117
Power Supply
117
Video Deflection Circuit Board
117
Video Driver Circuit Board
119
Terminal Logic Circuit Board
119
CPU Logic Circuit Board
120
Chassis Parts
121
Serial Interface I/O Circuit Board
122
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