Kowa K9L39F5BE, Service Manual

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GG-09004 Edition 4.0
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7. Troubleshooting
7-1 Power switch does not operate.
7-2
Anterior chamber selection switch does not operate.
7-3
To push the monitor screen selection switch will not cause a desired display to be selected.
7-4
Internal fixation light will not be selected.
7-5
Magnification selection button does not operate.
Cause Remedy
The power cord is disconnected from
the fundus camera.
Connect the power cord to the fundus camera.
The plug is improperly connected. Put the plug in the socket.
The fuse has blown out. Replace the fuse with the new.
Cause Remedy
Faulty switch. Replace the anterior chamber selection switch.
Faulty switch panel board. Replace the switch panel board.
Faulty CPU board. Replace the CPU board.
Faulty head board. Replace the head board.
Faulty solenoid.
Contact our company for repair. After replacing the
anterior chamber lens solenoid, lens positioning will be
needed.
Connector improperly connected.
Connect the connector between the switch panel board
and the CPU board. over again.
Cause Remedy
Faulty switch. Replace the monitor screen selection switch.
Faulty switch panel board. Replace the switch panel board.
Faulty CPU board. Replace the CPU board.
Connector improperly connected.
Connect the connector between the switch panel board
and the CPU board over again.
Cause Remedy
Faulty switch Replace the internal fixation light selection switch.
Faulty switch panel board Replace the switch panel board.
Faulty CPU board Replace the CPU board.
Faulty head board Replace the head board.
Connector improperly connected
Connect the connector between the internal fixation lights
LED board, head board and CPU board.
Cause Remedy
Faulty switch. Replace the anterior chamber selection switch.
Faulty switch panel board. Replace the switch panel board.
Faulty CPU board. Replace the CPU board.
Faulty head board. Replace the head board.
Faulty solenoid. Replace the magnification lens solenoid .
Connector improperly connected.
Connect the connector between the switch panel board,
CPU board and head board over again.