LG KF690 Service Manual page 75

4. TROUBLE SHOOTING
AB23
HKAIN5
AC18
LINE_ON
AC17
LINE_OP
AA17
HPH_R
W17
HPH_L
AE18
EAR1ON
AF18
EAR1OP
T15
LGE Internal Use Only
VBAT_TEMP
LINE_ON
LINE_OP
HPH_R
HPH_L
R204 12ohm
RCV-
R205 12ohm
RCV+
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