LG / GOLDSTAR 42PC5R
Manual de Servicio

14. No Sound
(1) Symptom
1) LED is green. 2) There is a picture but no sound.

(2) Follow check

Is there sound in any mode?

No

Is the speaker on?

No

Set speaker on in the menu.

Yes

Yes

Is there no sound only for HDMI?

No

Download the EDID data.

Is the speaker cable normal?

No

Check the Speaker cable

Yes

Yes

Is there no sound only AV /COM2/PC?

No

Is the output of IC600(R607, R608) normal? Yes

No

Replace the IC600

Yes Check the signal after IC600. refer to circuit diagram.

Is the IC500 operating normal?

No Replace the IC500

Yes Is there no sound only for RF? No Check the Tuner In/Out. Is the IC601 operating normal? No Replace the IC601

Yes

Replace the VSC BD

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