LG -V909DW Service Manual page 91

Speaker L1
TP1
SPK_L1+
Codec
SPK_L1-
Speaker L2
TP2
SPK_L2+
Codec
SPK_L2-
Speaker R
TP3
SPK_R+
Codec
SPK_R-
LGE Internal Use Only
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4. TROUBLE SHOOTING
Speaker R
Check the waveform of TP1, TP2, TP3 [on SPK PAD]
SPK_R+
SPK_R-
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CN1701
1
2