LG -E510 Service Manual page 126

HPH_R
HPH_L
LINE_OP
LINE_ON
LGE Internal Use Only
FB502 1800
FB503 1800
TP1
C509 39n
C510 39n
M6-GND
6
M1-R
1
M4-DETECT
4D
M4-L
4
M5-MIC
5
TP2
C507 470n
C508 470n
R525 10
R526 10
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4. TROUBLE SHOOTING
J500
C2
IN1-
C1
IN1+
D2
IN2-
D1
IN2+
Only for training and service purposes