LG -P768 Service Manual page 77

4.12.1 Speaker troubleshooting
4.12.1 Speaker troubleshooting
(1) Check The resistance of speaker (1) Check The resistance of speaker
(1) Check The resistance of speaker
CTQ Impedance /at 2kHz [Ω}
(2) Check The RF PCB
(2) Check The RF PCB
Check the connector To Main board
(2) Check The RF PCB
Check the connector To Main board
Check the connector To Main board
Connector
F-PCB Front-side view
LGE Internal Use Only
TP1
SPK_P
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4. TROUBLE SHOOTING
8.0± 15%
TP2
SPK_N
F-PCB back-side view
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Connector