LG XB12 Service Manual page 18

FUNCTION AUDIO AB-NORMAL
Portable.
YES
Check
Input for IC701
(Pin4,25).
YES
Check Output
IC701 (Pin12,17).
DVD/USB (For XB).
YES
Check
Input for IC507
(Pin1,2,3,4).
YES
Check Output
IC507 Pin7,10.
YES
Check Input for
IC701 (Pin6,23).
YES
Check Output
IC701 (Pin12,17).
LGE Internal Use Only
NO
Check Signal
Input JK101.
NO
ES8380
Pin117,123,124,1.
NO
Check IC507
Pin9=5V.
Tuner.
YES
Check
Input for IC701
(Pin5,24).
YES
Check Output
IC701 (Pin12,17).
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Copyright © 2007 LG Electronics. Inc. All right reserved.
NO
Check TU701
Pin3,5.
Only for training and service purposes