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3.12.3. Receiver Trouble Shooting
It’s trouble shooting guide for no sound case.
Receiver control signals are generate by MT6323(U4100)If low level volume or breaking the voice,
change RCV module
Hear the Voice through the RCV?
Change RCV Module?
Check Main PCB.(L6450, L6451, )
via Loopback mode Voice OK?
START
END
Yes
Yes
Yes
Check the Receiver. And reconnect RCV
module
Change Main Board
No
No
No
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