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2. AV STEREO/ MONO MODEL
OK
Copyright©2010 LG Electronics.Inc. All right reserved.
Only for training and service purposes.
Select correct system in menu
OK
Check the connection of AV
equipment
AV
Does the auto - Program
operate properly
OK
Check the waveform at
pin26, 25 of IC501
OK
Check the waveform at
pin4, 12, of IC601
OK
Check the waveform at
pin6 of IC601
OK
Check the waveform at
pin8, 9, 11, 12 of IC601
OK
NO
NO
NO
NO
Check the voltage at
pin5, 7 of IC601
OK
Check the connection of side
AV Board P201A
OK
Replace IC601
- 13 -
Check TU101 Tuner
Check the voltage of pin2, 11,
18, 35, 36,55,61, 68, 75 of IC501
Check the signal line of SPK-N,P
Check pin71 (mute) of IC501
NO
Check/ Replace
R822, D827
NO
Correct the Board
LGE Internal Use Only
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