Table Of Contents - Casio PCR-365A Service Manual

PCR365A/CE-250/CE-200
1. SPECIFICATIONS ........................................................................................ 1
2. INITIALIZE (MAC) OPERATION.................................................................. 2
3. BLOCK DIAGRAM ....................................................................................... 3
3-1. PCB CONNECTION ..................................................................................................... 3
3-1. BLOCK DIAGRAM ....................................................................................................... 4
4. DISASSEMBLY ............................................................................................ 5
5. CIRCUIT EXPLANATION ............................................................................ 7
5-1. Power supply circuit .................................................................................................. 7
5-2. CPU (uPD78052GC-159-3B9) ..................................................................................... 8
5-3. Display controller (uPD16312GB-3B4) ................................................................... 10
5-4. Initilize IC (Reset circuit) .......................................................................................... 11
5-5. Power down detection circuit (PWD) ...................................................................... 11
5-6. Address latch circuit ................................................................................................ 11
5-7. RAM / ROM bank selection circuit .......................................................................... 12
5-8. Head drive circuit for printer ................................................................................... 13
5-9. Power supply circuit for display ............................................................................. 14
6. DIAGNOSTIC OPERATION ....................................................................... 15
6-1. To start the diagnostic program ............................................................................. 15
6-2. Check item ................................................................................................................ 15
6-3. Operation of each test .............................................................................................. 15
6-4. To exit the diagnostic test ....................................................................................... 20
7. ERROR CODE LIST................................................................................... 21
7-1. Operation error code ................................................................................................ 21
7-2. System lock code ..................................................................................................... 22
8. IC DATA ..................................................................................................... 23
9. PCB LAYOUT ............................................................................................ 26
10. CIRCUIT DIAGRAM ................................................................................... 27
11. PARTS LIST ............................................................................................... 42
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