Table of Contents
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1. SPECIFICATIONS ................................................................................................ 1
1.1 CPU ............................................................................................................. 1
1.2 Hardware ..................................................................................................... 1
1.3 Memory ....................................................................................................... 1
1.4 Touch Panel ................................................................................................ 1
1.5 Display ........................................................................................................ 1
1.6 Sound .......................................................................................................... 1
1.7 Key .............................................................................................................. 1
1.8 Interface ...................................................................................................... 1
1.9 PC card ....................................................................................................... 2
1.10 Power supply .............................................................................................. 2
1.11 Durability .................................................................................................... 2
2. OPTIONS .............................................................................................................. 3
3. INTERFACE PIN ASSIGNMENT .......................................................................... 5
3.1 8 Pin serial I/F ............................................................................................. 5
3.2 14 Pin serial I/F (RS-232C) ......................................................................... 5
3.3 Card I/F ........................................................................................................ 6
4. SYSTEM DIAGRAM ............................................................................................. 8
4.1 System diagram ......................................................................................... 8
4.2 Block diagram ............................................................................................ 9
4.3 PCB diagram ............................................................................................ 10
4.4 Power supply diagram ............................................................................. 11
5. CIRCUIT DESCRIPTION .................................................................................... 12
5.1 Memory ..................................................................................................... 12
5.2 KBC ........................................................................................................... 15
5.3 Communication ........................................................................................ 21
5.4 PC Card ..................................................................................................... 22
5.5 Power Supply ........................................................................................... 24
6. DISASSEMBLY .................................................................................................. 26
6.1 Removal of the main battery and the backup batteries ....................... 26
6.2 Removal of the battery pack cover ........................................................ 26
6.3 Removal of the Lower case block .......................................................... 26
6.4 Removal of SUB ass'y PCB .................................................................... 27
6.5 Disassembly of the Middle Case Block ................................................. 27
6.6 Disassembly of Upper Case Block ......................................................... 29
7. DIAGNOSTIC PROGRAM .................................................................................. 30
7.1 General ...................................................................................................... 30
7.2 Inspection Detail ...................................................................................... 32
7.3 Special tool ............................................................................................... 33
7.4 Diagnostic test ......................................................................................... 35
8. CIRCUIT DIAGRAMS ......................................................................................... 53
8.1 Curcuit diagram INDEX ........................................................................... 53
9. EXPLODED VIEW .............................................................................................. 75
10. PARTS LIST ........................................................................................................ 76
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