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5. In case of no sound

Symptom

1)LED is green

2)Screen display but sound is not output

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Check follow

Is All input (mode) no sound?

Yes

Is Only HDMI

no sound?

Yes

Is Only RF no sound?

No

No

No

Download the EDID data.

Check the tuner

SIF, AM Audio Input.

Is the output speaker

No

 

turned on?

 

 

Yes

 

 

 

No

 

Is a speaker

 

cable connected?

 

 

 

 

Set the output speaker on.

Connect the speaker cable.

Yes

IC603 is OK?

Yes

IC600 is OK?

Yes

No

No

Replace IC603 (MSP4458).

Replace IC600(NTP3000A).

Replace VSC board.

LGE Internal Use Only

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LG Electronics 42LG6100-ZB, 42LG6000-ZA service manual Case of no sound