— 2 —
CONTENTS
1. SPECIFICATIONS ................................................................................................ 3
2. GENERAL GUIDE ................................................................................................ 5
3. DATA COMMUNICATIONS ...............................................................................12
3-1. DATA TRANSMISSION FROM A UNIT TO ANOTHER UNIT ................... 13
3-2. DATA TRANSMISSION BETWEEN A UNIT AND PERSONAL COMPUTER USING FA-128 ...... 13
4. OPERATION CHECK .........................................................................................15
5. ERROR MESSAGES .......................................................................................... 18
6. SCHEMATIC DIAGRAMS
6-1. MAIN PCB ASS'Y (A342054)-(1/4) ............................................................ 19
6-1. MAIN PCB ASS'Y (A342054)-(2/4) ............................................................ 20
6-1. MAIN PCB ASS'Y (A342054)-(3/4) ............................................................ 21
6-1. MAIN PCB ASS'Y (A342054)-(4/4) ............................................................ 22
6-2. KEYBOARD PCB ASS'Y (A342055)-(1/3) .................................................23
6-2. KEYBOARD PCB ASS'Y (A342055)-(2/3) .................................................24
6-2. KEYBOARD PCB ASS'Y (A342055)-(3/3) .................................................25
7. LSI PIN FUNCTION ............................................................................................26
8. DISASSEMBLY ..................................................................................................27
9. PARTS LIST .......................................................................................................30
10. EXPLODED VIEW ..............................................................................................32
Summary of Contents for SF-5590SY
Page 19: ... 19 6 SCHEMATIC DIAGRAMS 6 1 MAIN PCB ASS Y A342054 1 4 CPU ...
Page 20: ... 20 6 1 MAIN PCB ASS Y A342054 2 4 ...
Page 21: ... 21 6 1 MAIN PCB ASS Y A342054 3 4 ...
Page 22: ... 22 6 1 MAIN PCB ASS Y A342054 4 4 ...
Page 23: ... 23 6 2 KEYBOARD PCB ASS Y A342055 1 3 COM PORT BUZZER ...
Page 24: ... 24 POWER SUPPLY 6 2 KEYBOARD PCB ASS Y A342055 2 3 ...
Page 25: ... 25 6 2 KEYBOARD PCB ASS Y A342055 3 3 ...
Page 33: ...MA0900571A ...