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LGE Internal Use Only
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
9. TV Audio
10. Component/RGB Audio
Check the RF cable and RF signal
Check the cable is defective
Check the Tuner 3.3V ,1.2V
; L3701, L3702, L3704 : +3.3V,
IC3701 #28pin : 1.2V
Check the signal of JK4302
R4343, R4344
Check the IF signal
TU3701 #6.7 pin
Check the CLK SYNC DATA
TU3701 14,15,17~24
Implement the “8. Audio of all input”
Of Malfunction guide
Exchange the Tuner
Menu toggle
Check the Speaker resistor or
connector
Exchange the speaker
Exchange the
L3701, L3702, L3704
Exchange the Jack
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
Summary of Contents for 32LX330C Series
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