Drawings; Block Diagram - Citizen CBM-290 Service Manual

6 6 6 6 . . . . D D D D R R R R A A A A W W W W I I I I N N N N G G G G S S S S
The following lists the reference drawings for maintenance, and so on.
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Block Diagram

Circuit Diagram --------------- For the serial interface, For the parallel interface
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CBM-290/291 Service Manual
CITIZEN