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 | 29 CINEMASTER | It didn't turn on, with normal +b and all secondary voltages ok, but tsound was no image or sound and it didn't play the mat or any other flay-back voltage | C401 sold out | Replace it, and run for the hug! | Edfesom Ramos |
| LG | 21SA1RL | Going into protection shutting down | 07 | Replace without measuring the 100μF35v c307 close to the vertical | Sinailson furtado |
| LG | 29FS4RLG CW26C | It doesn't turn on, it just keeps hitting the relay, the large capacitor on the power supply is charged | R801 30k altered for 93k | Put a normal 30k of the scheme ready and it was good again | Biel eletrônica |
| LG | 21FX5RL | Off after a while on | R420 c409 q403 | After replacing these components, the TV no longer turned off by itself. | ELETRÔNICA Power saquaçú |
| LG | 21FU6TL | It just doesn't arm, just standby | Ic802 | Just replace it | Garcia |
| LG | 50PB560R | No image only audio | C 483 smd com ysus plate leak | Obs I put it with common ceramic 4.7k x 2kv it was fine....... good luck!!!! | Jhone eletroonica |
| LG | 32LN540B | It just keeps restarting, showing the lg logo indefinitely. Sometimes it works normally. | Cable connections that interconnect the power supply and main PCS | Disconnect the cable at both ends and, using a sharp object, press those little windows corresponding to each of the pins. It looks great, you don't need to replace any components. | Honorato |
| LG | 21FJ6RB | The TV was turning on normally, but with a sawtoothed green screen, no image and no sound. screen and focus acting | Checking the RGB, RGB resistors, 180 cap, normal voltage of 180, good power supply, nothing to replace on the tube board. | By changing the tube, the problem was resolved. | <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small> |
| LG | RP29CC26 | Closed horizontal | C410 - 1uf 250v | Replace | Beto Eletrônica |
| LG | 42LD460 | Red LED flashing slowly, +12v with 7.4v, does not turn on | Zener diode zd205 (18v), with a small leak, only detected at the 10k resistance level. | Replaced the zener diode, and the TV was normal | PATRIARCA |
| LG | 21FU4RL | When turned on, the TV starts from high voltage and returns to standbay. | C308 broken | Replace without measuring. | Ferraz |
| LG | 29CC2RL | Normal image but without sound | Q=601 | Replace it with another one or remove the transistor from the board and the TV will release the sound again | Antonio Carlos (Eletrônica Renascer) |
| LG | CM4330 | Works for a few minutes and goes into s-protection | Defective pc903 coupler photo | Replace pc903 | SILNEI |
| LG | 32LB9RTA | Keyboard blocked and remote sensor does not respond | Capacitor c610 shorted | Replace capacitor c610 47pf which is close to the keyboard signal connector and go to the main board and examine the 5v zener which works together with the cap on the connector the signal has the tx nomenclature. | ricardovideoesom |
| LG | 47LB5600 | Screen flashes even when replacing the LEDs | Defect in the 33µf/250v capacitors in the voltage filtering for the LEDs | Luir | |
| LG | CM5660 | Doesn't start | The 2 photo couplers with a problem do not pass 12v | Replace the two photo aclopador and run for the hug | LEANDRO |
| LG | CM8430 CM8520 CM8330 CMS9530 | Stuck on stand by, won't turn on | It is not necessary to open the device. | Remove the 4 small knobs (function, effect, file, < >) and the volume knob (large) and try to turn on the device. If it doesn't work, remove the potentiometers one by one until you discover the faulty ones. | <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small> |
| LG | 42PJ250 | Turns on, after a while it turns off. | Photo couplers pc102, pc101 turn signals. | Replace photo couplers pc101, pc102 (pc-17k1) | AntonyGarcez |
| LG | RP-20CC25 MC 059A | When lighting, the relay hits but does not turn on at high power | R 816 de 180k | Replace | Mauro Mascarenha Tel. ( 88 )981422821 Parazinho - Ceara |
| LG | 21FJ6RB | It does not tune channels and tsound is no image on the TV when you connect the antenna or connect the cable. The AV shows vertical lines. | R 512 of 4.7k | Replace | Mauro Mascarenha Tel.( 88 )981422821 Parazinho - Ceara |