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CONTENTS

PCR260B Page

1. SPECIFICATIONS........................................................................................ 1

2. INITIALIZE (MAC) OPERATION.................................................................. 2

3. BLOCK DIAGRAM....................................................................................... 3

3-1. PCB CONNECTION ..................................................................................................... 3

3-2. BLOCK DIAGRAM....................................................................................................... 4

4. DISASSEMBLY............................................................................................ 5

5. CIRCUIT EXPLANATION ............................................................................ 8

5-1. Power supply circuit .................................................................................................. 8

5-2. Reset circuit ................................................................................................................ 9

5-4. Printer drive circuit................................................................................................... 10

5-5. Pin description (CPU uPD78044FGF) ..................................................................... 10

6. DIAGNOSTIC OPERATIONS .................................................................... 12

6-1. To start the diagnostic operation............................................................................ 12

6-2. Check items .............................................................................................................. 12

6-3. Operations................................................................................................................. 13

7. ERROR CODE LIST................................................................................... 16

7-1. Operation error code ................................................................................................ 16

8. IC DATA ..................................................................................................... 17

9. PCB LAYOUT ............................................................................................ 18

10. CIRCUIT DIAGRAM ................................................................................... 19

11. PARTS LIST............................................................................................... 25

Casio PCR-260B Service Manual

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