Introduction - Zenith Z-100 PC series Service Manual

Contents
Chapter 1
Chapter 2
Switches.
Jumpers.
Chapter 3
Block Diagram . . . . . . . . . .
Backplane Board Connector
Busses . . . . . . . . . . . . . .
8088·2 Microprocessor . . . .
Optional 8087·2 Coprocessor
Programmable Interval Timer
Interrupt Controller
Gate Array
Parallel Port .
DIP Switches
RAM .. .
ROM .. .
Oscillators
Keyboard
Chapter 4
8088·2 Microprocessor
The Instruction Cycle
Interrupt Operation .
System Timing . . . .
Programmable Interval Timer
Interrupt Controller
Gate Array . . . . . . . . .
Peripheral Interface . . . .
Keyboard Communication
Chapter 5
System Troubleshooting . . . . . . .
CPU/Memory Card Troubleshooting
Chapter 6
Introduction
Configuration
.2·2
. . . . . . . .2·4
Theory of Operation
.3·1
.3·1
.3·2
.3·2
.3·2
.3·2
.3·3
.3-3
.3·3
.3·3
.3·3
.3·3
.3-3
.3·4
Detailed Circuit Description
04·1
04-4
04-5
04-6
04·11
04-13
.4-14
04·19
.4·21
Troubleshooting
.5·2
. . . . .5·3
Parts List