All Source No Audio Problem - LG 32LD320 Service Manual

LCD TV
Check The Speaker
YES
Check Speaker Cable
YES
CHECK MAIN B'D
JK700 or JK701
YES
MAIN B'D
L700 = 1.8V
YES
MAIN B'D
Check R720, R721, R722
Signal
YES
MAIN B'D
L705 Pin #1
L704 Pin #2
PWM Signal ?
YES
Replace MAIN B'D IC 701
Downloaded From TV-Manual.com Manuals

All Source no Audio Problem

Symptom
Replace Speaker
NO
Replace Speaker Cable
NO
Replace MAIN B'D
JK700 or JK701
NO
Replace MAIN B'D IC803
NO
Replace MAIN B'D IC100
NO
Check P700 Cable
NO
Making
Revision
_ If headphone is connected, Speaker sound
Replace MAIN B'D IC701
NO
2009. 2 . 1
18/34
26~42LH2000
32~47LH3000/LH4000
doesn't work.