Table Of Contents - Mitsubishi Electric LS Pro Hardware Technical Reference

Contents
1 INTRODUCTION
General ....................................... 1/2
Variants ....................................... 1/2
System unit ................................ 1/3
Keyboard .................................... 1/3
Monitors ..................................... 1/4
Expansion ................................... 1/4
2 SYSTEM UNIT
Introduction ............................... 2/2
External layout .......................... 2/2
Internal layout ........................... 2/3
Servicing level ............................ 2/3
Dismantling and re-assembly . 2/3
Installing add-ons .................... 2/16
System unit connectors ........ 2/20
3 SYSTEM BOARD
3.1 Introduction ........................... 3/2
General ....................................... 3/2
Description ................................ 3/4
3.2 Processor system ................ 3/5
Address and data bus
structure ..................................... 3/5
Software compatibility ............. 3/5
Modes of operation ................. 3/5
3.3 SCAMP ..................................... 3/6
Interrupt structure ................... 3/6
Direct Memory Access ........... 3/8
System timers ............................ 3/9
3.4 System memory ................. 3/10
General ..................................... 3/10
Read only memory (ROM) ... 3/10
Random access memory
(RAM) ....................................... 3/10
Real time clock (RTC) RAM 3/11
3.5 Video adapter ...................... 3/14
General ..................................... 3/14
3.6 Floppy disk controller ..... 3/15
General ..................................... 3/15
Drive formats .......................... 3/15
3.7 Hard disk interface ........... 3/16
General ..................................... 3/16
Interface signal descriptions . 3/16
3.8 Peripherals controller ..... 3/17
Serial ports ............................... 3/17
Parallel port ............................. 3/18
3.9 Keyboard/mouse
controller ............................... 3/18
General ..................................... 3/18
Keyboard password security 3/18
3.10 LOC Technology ............... 3/19
3.11 Ethernet port ...................... 3/19
General ..................................... 3/19
3.12 Apricot Business Audio .. 3/21
3.13 System board
connectors ............................ 3/21
Hard disk drive connectors . 3/21
Floppy drive connector ......... 3/22
System board power
connector ................................. 3/22
Battery jumper ........................ 3/22
4 PERIPHERAL ITEMS
4.1 Power supply ......................... 4/2
Description ................................ 4/2
Connector ................................. 4/3
4.2 Monitors ................................... 4/3
Introduction ............................... 4/3
Maintenance ............................... 4/4
Video signal ................................ 4/4
Apricot SVGA colour
monitor ....................................... 4/4
External controls ...................... 4/4
HiVision Low Emission 14"
colour .......................................... 4/6
HiVision Low Emission 17"
colour .......................................... 4/7
VGA connector ........................ 4/9
4.3 Hard disk drives ................... 4/9
Introduction ............................... 4/9
Quantum ProDrive ELS .......... 4/9
Maxtor 7213A ......................... 4/11
Quantum ProDrive
LPS240AT ................................. 4/12
Quantum ProDrive
LPS525AT ................................. 4/13
IDE interface ............................ 4/14
LS PRO HARDWARE TECHNICAL REFERENCE 1
Contents