Copyright©2007 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
Only for training and service purposes
4. No Sound
Symptom
Front LED is ON as green color, but no sound.
Check Flow
Check Speaker Cable?
Is the SPK cable connected well?
Reset Cable
Replace Speaker Cable
Audio V12V normal?
Audio normal on HDMI?
Check Power Supply
Audio normal on DIGITAL RF?
Check EDID EEPROM
Audio normal on Analog RF?
Check MSP3425
Audio normal on Video3?
Check TEA6422D
Audio normal on DIGITAL RF?
Check TUNER
Audio normal on
AutoCamport/AV2
Check RJP Mode
Check TEA6422D
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
Check STA323W
NO
NO
NO
NO
NO
NO