LG TV Repair: Common Faults and Solutions.
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Results: 4833
Results: 4833
LG Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | 42PN4600 | TV doesn't turn on without STBY. | Second river power supply board, th353 defective, won't let the q351 drive, change the th or remove it. | RNSPTEC | |
| LG | 42PJ350 | White strip at the bottom and off | Cold solder on the large coil l1 of the zsus board | Marcelo | |
| LG | 32LN5400 | Turns off by itself | Cover touches the highest components on top of the power supply and causes poor contact specifically with d801 and c801. | Resolder d801 and c801 also the highest ones next to them. | ZENER Serviço Técnico |
| LG | 32LJ600B LJ7 | No image, backlight working, 12v was missing to power the display | If the scheme is impossible to find who is to blame, supply it with an external regulator 7812 | Mitzko Eletronica | |
| LG | 26LD330 LG | TV working and out of nowsound it turns off and doesn't turn on. | Possible cold welding on power supply components | Re-do the welds | Everton |
| LG | 32LF20R | Pulsing power supply outputting 40v to the 24v output | Resistor r 255 of 10k with 1 mega | Ariel Santos | |
| LG | 32LN536B | TV turns on, but with backlight ok, no image with sound. | Main board defect, in the power supply of the t-com board, tsound is only 9.2 oscillating volts crackling, main board q404 smd x7va defect, replace or replace with a coil. | RNSPTEC | |
| LG | 42LM3400 | Burning the LEDs reduces the current | Https://youtu.be/czkwmf2eymm | Https://youtu.be/czkwmf2eymm | Eliel Batista |
| LG | 42LM3400 | Burning the LEDs reduces the current | Https://youtu.be/czkwmf2eymm | Https://youtu.be/czkwmf2eymm | Eliel Batista |
| LG | 39LB5600 | Turning off by itself | Re-welding of the large power supply transformer, observe cold welds with a magnifying glass | reginaldo moronte,eletronica junior caldas novas | |
| LG | 50PB690B | TV turns on, the display turns on and turns off, returning to stand-by | No voltage on ac det. | Changing resistors in the power supply loop coming from diode d103. | eletrofepar |
| LG | 50PA4500 | Image with reddish pigmentation | Y board defect | R576 330r | Marivaldo |
| LG | 50PN5400 | League without image. doing auto gen appears image giving the impression of being main board | Defective t-com board. generates auto gen image but does not process image coming from the main board | I replaced the board | Stiltec |
| LG | RP-21FE85G MC-059A | Vertical reducing downward | 47k r313 changed, measuring 64k | Replace r313 and thank god | Daniel |
| LG | OM4560 | Dead | Capacitor c637 shorted on main board | Eletrônica 3R | |
| LG | 65UK6540PS | No image with audio and backlight on | 10mf smd capacitor c132 on the vcon board shorted | Replace the capacitor | Luiz Parreira / RJ |
| LG | 55UM7470PSA | No image with audio and backlight on | 10mf smd capacitor c1305 on the vcon board shorted | Capacitor replaced | Luiz Parreira / RJ |
| LG | 32LH570B | Turns on only turns on backlight | Ic 500 (mp3378e) burned on the main board it kills the 12v to the v-con!!! | Replace it with a quality one to prevent it from burning again! I'm putting a link to wsound I bought the c.i: c.i ml | FIBGOR |
| LG | 32LN546B | LED bars flashing non-stop | Transistor (q 6902) I couldn't find the part number because it had a hole I put the (z0667t) it worked perfectly | mario moreci | |
| LG | 55LM7600 | Doesn't start | Capacitor c4324 shorted on motherboard | Replace or leave without. | Maurilio |