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CBM-920 Service Manual
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1. HANDLING AND MAINTENANCE OF PRINTER...........................................................................4
2. SPECIFICATIONS ...............................................................................................................................4
2-1 Basic Specification.…………………………………….…………………………………………………4
3. DISASSEMBLY AND REASSEMBLY ................................................................................................5
3-1 Disassembly Procedure...................................................................................................................5
3-2 Reassembly Procedure ....................................................................................................................7
4. TROUBLESHOOTING .........................................................................................................................8
4-1 Trouble Shooting Procedure……………………………………………………………………..………8
4-2 Trouble Shooting Guide……..…………………………………………………………………….……..9
5. SERVICE PARTS LIST ......................................................................................................................10
5-1 Parts List for Mechanism.............................................................................................................10
5-2 Disassembly Drawing...................................................................................................................11
5-3 Parts List for Control Board .......................................................................................................12
5-4 Parts Layout Drawing..................................................................................................................14
5-4-1 Main PCB Assy for CBM-920-PF(Parallel Interface)........................................................14
5-4-2 Main PCB Assy for CBM-920-RF(Serial Interface)………….……………………………...15
5-4-3 Drawing for Jumper Lead……………………………………………………………………….16
6. DRAWINGS.........................................................................................................................................17
6-1 Circuit ...........................................................................................................................................18
6-1-1 Block Diagram......................................................................................................................18
6-1-2 Coverall Wiring Diagram……………………………..………….……………………………...19
6-2 Circuit Diagram............................................................................................................................20
6-2-1 CBM-920-PF(Parallel Interface) ........................................................................................20
6-2-2 CBM-920-RF(Serial Interface)............................................................................................21