LG Electronics RT-29FB50RB, RT-29FB50VB/VE service manual

AV Stereo

Select correct system

In menu

OK

OK

Check the connection

Of AV equipment

AV		Check the the waveform			NO
		At pin47 of IC661
OK			OK
				NO
Check the waveform
At pin 24, 25, of IC661
	OK
				NO
Check waveform
At pin 4, 12 of IC602
	OK
				NO
Check the voltage
At pin6,7 of IC602
	OK

Check TU101 Tuner

Check the voltage Of pin16,20

Check / Replace

IC602

Check / Replace

Q621, IC603

Check the waveform

At pin 1,2,14,15 of IC602

NO

Check the vpltage At pin3, 13 of IC602

NO

Check /Replace F851, D862

OK

Replace IC 602

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