LG Electronics RT-21FA35R/RX/V/VX service manual AV Sterro / Mono Model

AV STERRO / MONO MODEL

Select correct system

In m enu

			OK
	OK
		Check the connection
		Of AV equipm ent
AV
		Check the wavef orm		NO
		At pin16, 17 of IC11
OK
		OK
			NO
Check the waveform
At pin4, 5 of IC11
	OK
			NO
Check the waveform
At pin2, 4 of IC601

Check TU101 Tuner

Check the voltage

Of pin2, 19, 20, 21, 24 of IC11

Check the signal line of

SPK- L, R

OK

Check the waveform At pin6 of IC601

NO

Check pin 55(m ute) of IC11

OK

Check the waveform

At pin8, 9, 11, 12 of IC601

NO

Check thevpltage At pin7, 5 of IC601

NO

Check/ Replace D828, D805, F806

OK

Check the connection of side or Front AV Board P603A

NO

Correct the Board

OK

Replace IC601

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