Kowa K9L39F5BE, Service Manual

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GG-09004 Edition 4.0
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7-16
The monitor screen does not come on.
7-17
Superimposition is not indicated.
7-18
The illumination lamp brightness cannot be adjusted.
7-19
The flash light intensity cannot be corrected.
7-20
The coarse adjustment of the optical head base cannot be smoothly made.
7-21
The fine adjustment of the optical head base cannot be smoothly made.
7-22
The fan does not activate, or makes a peculiar noise.
Cause Remedy
Contrast/brightness maladjustment. Adjust the contrast/brightness volume.
Faulty LCD monitor. Replace the LCD monitor unit.
Faulty CPU board. Replace the CPU board.
Faulty video board. Replace the video board.
Faulty CCD camera.
(Color/black-and-white)
Contact our company for repair.
Connector improperly connected.
Connect the connector between the memory board, LCD
monitor and CPU board over again.
Cause Remedy
Faulty CPU board. Replace the CPU board.
Faulty video board. Replace the video board.
Connector improperly connected.
Connect the connector between the video board, LCD
motor and CPU board over again.
Cause Remedy
Faulty switch panel board. Replace the switch panel board.
Faulty CPU board. Replace the CPU board.
Faulty power board. Replace the power board.
Faulty volume knob. Replace the volume knob.
Cause Remedy
Faulty switch panel board. Replace the switch panel board.
Faulty CPU board. Replace the CPU board.
Faulty power board. Replace the power board.
Faulty switch. Replace the switch.
Cause Remedy
Friction plate wear. Replace the friction plate.
Cause Remedy
Dirty friction tray. Eliminate dirt from the friction tray.
Faulty joystick. Replace the joystick unit.
Cause Remedy
Faulty fan. Replace the fan.
Faulty head board.
(when the optical head fan is on)
Replace the head board.
Connector improperly connected.
Connector between the fan and the power supply over
again.