LG RT-21FD90VQ User Manual

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AV STERRO / MONO MODEL
Select correct system
In menu
OK
Check the connection
Of AV equipment
Check TU101 Tuner
Check the waveform
At pin4,5 of IC11
Check the waveform
At pin16, 17 of IC11
Check the voltage
Of pin2,19, 20, 21, 24 of IC11
Check the signal line of
SPK- L,R
Check pin 55(mute)
of IC11
Check the waveform
At pin2,4 of IC601
Check the waveform
At pin6 of IC601
Check the waveform
At pin8,9, 11, 12 of IC601
Check the vpltage
At pin7,5 of IC601
Check/ Replace
D828, D805, F806
Check the connection of
side or Front AV Board
P603A
Replace IC601
AV
OK
OK
OK
OK
NO NO
OK
OK
NO
NO
NO
NO
Correct the Board
NO
OK
OK

LG RT-21FD90VQ Specifications

General

Brand	LG
Model	RT-21FD90VQ
Category	TV
Language	English