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4.16 Receiver Path
MSM6245 EAR1ON/EAR1OP → R413, R414 → Analog Switch(U401) Receiver
Connect the phone to network
Equipment and setup call
Change the Main board
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Only for training and service purposes
Start
Setup 1KHz tone out
Can you hear the tone?
NO
The sine wave appears at
L101, L102?
NO
The sine wave appears at
R413, R414?
NO
4. TROUBLE SHOOTING
YES
YES
Change receiver
YES
Check the analog switch
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END
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Table of Contents
Troubleshooting
