LG TV Repair: Common Faults and Solutions.
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Results: 4834
Results: 4834
LG Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | 42LN5700 | Stand by led blinks and tv doesn't turn on | The 3.5v was missing = bad optical coupler (ic102), 24v voltage ok, the 12v voltage was missing = bad ic201 (nr891d), in this ci, 24v comes in at pin 2 and 12v comes out at pin 3, (this ci is what generates the 12v voltage, x 1a | Replace it and the TV is ok. | Maurilio |
| LG | 42LN5700 | Stand by led blinks and tv doesn't turn on | The 3.5v was missing = bad optical coupler (ic102), 24v voltage ok, the 12v voltage was missing = bad ic201 (nr891d), in this ci, 24v comes in at pin 2 and 12v comes out at pin 3, (this ci is what generates the 12v voltage, x 1a | Replace it and the TV is ok. | Maurilio |
| LG | CM4340 | Turns on without sound and then goes into s-protect | Mosfet q901 e diodo zener zd912 20v | ELETRÔNICA MUNIZ BAHIA | |
| LG | 42PJ350 | Turns on without image vs voltage is ok warming up the zsus board | +15v testosterone 18v ysus board with 10 v | Smd capacitors c741 c742 c743 shorted ysus board | paulo rps |
| LG | 50PA4500 | Grainy image after changing the ysus repair kit | Open resistor and shorted uf4004 diodes | R576 open 330r, d561 shorted | Eduardo tomas silva |
| LG | 29FU6LT | Cushion effect | R317 changed, exact value 24k, place 2 12k resistors in series | Replace | VelkDj |
| LG | 29MN33D LA31R | TV turns on but the backlight screen does not light up | C1122 1ufx25v changed | Replace it with a good one | EK Eletrônica |
| LG | 60LA6200 | Stand by led blinks and tv doesn't turn on | Short in capacitor c471 on motherboard | Replace | Maurilio |
| LG | 20CD2R | Alloy with closed vertical | Replace resistor r313, 47k | DJ PITUKA | |
| LG | 49LB5500 | Does not turn on, stays on standby blinking | C-5621 shorted | Replace of the same | MARCELIO DREISSIG |
| LG | 32LB9RTA | Stand by turns green but does not turn on. | U600 )502 and r213 defective. | Replace components u600, u502 and r213 on the power supply board. | Antony Garcez |
| LG | 50PW350B | Image all smudged, colors completely altered | TV with a lot of dust inside. After a good cleaning, it was found that a 2.2Ω precision resistor was open. | Check all the 2.2 resistors and run to the hug. | PL Eletrônica |
| LG | 43LH5150 | TV doesn't turn on so it stays on standby | Shorted capacitors or led panel ci drive | Check if tsound is a short in the capacitors c520 c523 c524 take it out for testing, replace the ic-500 if the short continues when removing the capacitors. | I_silva |
| LG | 29FU6TL CW62D | Doesn't start. it just makes noise trying to set it up. | Curto no tsh (transistor do horizontal, 2sc6090). capacitor de largura c463 (18k). | Eletrônica R-Tec | |
| LG | CM4430-AU | It would turn on without sound in the boxes, then it would set up protection | Ic951 tl431 exploded | I replaced it, everything worked normally. | Jairo Matos |
| LG | RP-14CB25A MC-059A | Lines closing the top | 15k resistor 301 was changed to 20k | Just replace it and run for the hug! | Izaquiel |
| LG | 42LE8500 | TV turns on without HDMI image, AV doesn't work, image out of sync | Do a reflow on the main PCI, returning the image just by reballing the processor | Non-processor reballing | eletronica rodrigues |
| LG | 32LH20R 42LH20R LH20 | Backlight turns on, flashes after a few seconds and goes off and only the sound remains | Arming protection circuit | Remove resistor r1042 from the main, close to the power supply connector | FILIPE FURTADO |
| LG | 32LH20R | Turns on with sound without image, backlight off, forcing inversion screen becomes dark. When turning on you notice that the backlight flashes quickly.y. | Shorted smd capacitor on display board | Replacing the capacitor with the same capacitance. | Eletrônica Possamai |
| LG | LM-U1060A | No audio comes out/no 35 volts in the power supply that comes from the power supply to the output | Solder 1 100nf polyester capacitor to the PC901 photocoupler on the pins on the primary side | eletronica junior reginaldo moronte |