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Only for training and service purposes
2
Check the soldering of
C212, C214,C215, C216
Soldering is OK?
YES
Play the Ring tone.
Check the C214(SPKNA),C212(SPKPA)
The signal is a Analog
Check the Speaker
contact PAD of the F-PCB
4. TROUBLE SHOOTING
NO
Resolder the C212,
C214,C215, C216
NO
U104(DBB) is broken.
Change the board.
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Table of Contents
Troubleshooting
