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Power source system 2
When the stand-by power source
is abnormal.
Pull out the RD connector of RD-SD
Is the pin No. 1 of the
RD connector -6V?
Is the pin No. 11 of the
RD connector 12V?
Insert the RD connector.
the RC side of the RC-FC
lead wire. Is the pin No.2 of
the RC connector 13V
Insert the RC connector.
the RG side of the RG-AG
lead wire. Is the pin No.2 of
the RG connector 13V
Solved by replacing
Malfunction of PCB-FAN.
Are RD and SD
connectors OK?
YES
YES
YES
Are RC and FC
connectors OK?
YES
Disconnect
or more?
YES
Are RG and AG
connectors OK?
YES
Disconnect
or more?
YES
the PCB-FAN?
YES
Insert or replace them.
NO
Check the circuit around D9A0
NO
Check the circuit around IC9A3.
NO
NO
Insert or replace them.
Check the circuit around D9A2.
NO
NO
Insert or replace them.
Check the circuit around D9A3
NO
Malfunction of PCB-TERMINAL.
NO
Using the shielding case as GND is allowed when
checking the voltage waveform or terminal voltage.
- 3 -
Abnormal video or audio.
Display of NO SIGNAL
Fan stop
Fan stop
No sound
No sound
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