Only For Training And Service Purposes - LG KF700 Service Manual

4. TROUBLE SHOOTING
4.7.3 Loud speaker path (voice speaker phone/VT)
Loud speaker path as below:
MSM6280 SPK_R, SPK_L
U501(Speaker/Receiver Selection Switch)
CN102(LCD FPCB to Main PCB Connector)
LGE Internal Use Only
→ →
C504,C505 R505,R507
→
CN300(Main PCB to LCD FPCB connector)
→
OUT100, OUT101(SPK PAD)
- 82 -
→
U504(SPEAKER AMP)
→
Speaker
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Only for training and service purposes

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