LG GD330 - Speaker;Receiver Trouble Shooting (Common Path)

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4. TROUBLE SHOOTING
4.9. Speaker/Receiver Trouble Shooting (Common Path)
Replace the component
NO
YES
YES
Speaker has a problem.
Replace the Speaker.
NO
NO
Check the resistance between
SPK_RCV_P & SPK__RCV_N of the Speaker
With the DVM ~ 8 ohm_
Check F-PCB connector
If Connector is not a problem,
Change the F-PCB
NO
Disassemble the slide case of phone.
Disconnect The F-PCB from the
Main Board.
Check the resistance between
#34 & #35 of the F-PCB
With the DVM 10 ohm
Check the soldering status
Of CN301 of main -board
Play the Ring tone.
Check the Output
(L200,L201,C240,C241) of IC200,
The signal is a Digital
YES
START
SPK_RCV_N
SPK_RCV_P
1 (Next page)
Check the Speaker contact PAD
of the F-PCB