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Flow Chart of Troubleshooting
10-10
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10-1-5. Receiver Part
10-1-6. Speaker Part
There is no sound from the Receiver
Is the terminal of Receiver
O.K ?
No
Replace the Receiver
Yes
No
Yes
Check
UCP300
Is there any signals at
R527
and R529?
END
There is no sound from the Speaker
Is the terminal of Speaker
O.K ?
Replace the Speaker
Is there any signals at
R505
and R508
Check
UCP300
END
Yes
Yes
Yes
Yes
No
No
Pin#8 of U502 is Low ?
Check
R530
No
Yes
Check SOC700 and Camera/SPK FPCB.
Check SOC700 and Camera/SPK FPCB.
Is there any signals at L500
and L501
Check the circuit around
U501
No
Pin#8 of U502 is High?
Check
R530