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Flow Chart of Troubleshooting
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7-13
7-7. Receiver Part
U605 pin 14 = Battery Volt?
Resolder or replace U605
END
No
Yes
Yes
Receiver does not work
Is Receiver working?
Replace the Receiver
No
Yes
No
Replace U301
Yes
Check the soldering of the
speaker wire
No
Modify the speaker wire soldering
Yes
U605 pin 10(AUDIO_SW3) =
"L"?