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LG Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
LG24MN33N
The TV kept cutting the sound due to the voltage of the q700 (mmbt3904) varying between 3.3 and 2vWhat I did to solve the problem:. as I didn't find the transistor q700 (mmbt3904). I removed it from its place and left it without the transistor, the TV is working fine.Obs. As I live in a small city it is a little difficult to buy, this was the solution I found but the ideal is to replace the component because the mute function stops working.Reginaldo Alves
LGRP44NA40PA
TV would arm for a few seconds and give audio and turn offI loosened the cables from the cannon that is connected to the triplicator or capacitor block and nothing, then I released the one from the flyback, the flyback generated high voltage and the TV stayed on, of course with no image.Replace the block 4410z a001p you can put it with the ending l which is the same.Bardock Eletronica
LG21FU6TL
Greenish imageZd502 abertoReplace the sameRildo aranha
LG47LB5600
The LED doesn't turn on (when you try to turn on the LED turns off but doesn't turn on)Turn on 3.5 on power-on and on drive-on if the screen lights up, defect on the main boardMain boardKrul
LG42CS460
Turns on, turns off immediately, turns off the lamps.Bad contact on transistors Q707,708,709710.Resolder them. Tighten all screws on the plates.arock
LG32LY340C, 32LY34H, 42LY340C, 42LY340H... SERVE PARA QUASE TODAS LCDS, LED.
Tip to unlock when you forget your password.Navigate to the lock and try to access it. You won't be able to do so because you have an unknown password.Try accessing again. When the password box appears, click the mute button on the remote control 3 times. A box with 6 digits will appear. enter the following password: 129472. the box to reset password will appear. put the default password again which is: 0000. done. Just unlock the device.Eletrônica R-Tec
LG42LD650
It doesn't turn on, the red LED keeps flashingAfter testing all voltages, it was found that the micro bga did not oscillateResolder or micro bga at 380°RobertoBrujaH
LG 32LG60UR
Turns on normal image and then after it heats up, the image shakes vertically.Capacitor c111 10x450v weak on the inverter boardJust replaceGUINGA sdia - goias
LG42SL90DQ
The device does not turn on, the LED does not light up, tsound is no voltage on the secondary.Diode 202 shorted.Diode 202 replacementcarlos
LGCL14C600KJ
CL
Off and the LED didn't light upHorizontal shorted killing the power supplyReplace it for another like itELETRONICA CAVALCANTE
LGRP20CC95
No channel, no RF or AV, normal drizzleCapacitor eletrolitico c524 ,1/50vCapacitor eletrolitico c524 ,1/50vDJ PITUKA
LG60PB5600
No image, just talk.T251 transformer that generates 18v. oxidized and open.Replaced or healed.ELTON CASTRO
LGFS4RLG
62W
Cushion effectCold solder on the board above the flybeckregis eletronica jacobina-ba
LG29FS4RLG
The television turns on, with the image appearing and disappearing and with all sides closed, in the shape of a square. (power supplys oscillating).R845 open.Replace r845 de 4, freeCarloscte
TV LG29FU6TL
It wouldn't start, outboard engine noise in the sound, normal secondary voltages, 3.3v power supply, tsound was only 1.2vCi 823 was replaced, 3.3 regulator with leakJosé delta line
LG 39LN5400
No image screen lighting lights up normallyShorted screen board smd capacitor (c18)Replacing capacitor c18 on the lcd screen board.sérgio
LG21FX5RL
Turns on, vertical closed wants to open, green retrace and turns off.Ic 501Substituir ic 501. lg631-9rEletrônica mineira
LG21FU4RL
Alloy, +b normal. activates, turns off LED. the +b on the flyback goes to 0v.Broken track to the fusistorYou have to check carefully as it is not visible. only with the multimeter.Rildo aranha
LG32LK330
LCD
When turned on, the lamps blink but remain offC401 (22j x 6kv) with low capacitance and heating up a lotReplace the capacitorLucafer
LGL1930S
Turns off after a few seconds of operation.Change without measuring c203(680µf/35v) change by 1000µf/35vDuarte Pacheco