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 |
|---|---|---|---|---|---|
| TV LG | RP 14CB25A | Power supply ok tv doesn't turn on | C 523 470+10v short | It's just an replace and a hug | gesner |
| LG | PC20K70 | Does not turn on standby flashing | R 804 22k open | And just touch | luiztvsom |
| LG | 29FU1RS | Silver image pulling towards pink | Cinescopio | Replace kinescope | macedo domingos |
| LG | RP21FE85 MC059 | If turning off | Remove q 403 | jps, eletr,c,grande | |
| GLG | CP-14J52 MC-83C | Does not turn on standby off | Saida vertical la7833 | Replace for new | luiztvsom |
| LG | CP-20B86A | Works normally but after a few minutes the tuning goes out | Defect in the varicap 30v line, only with 29v | Exchanging 12k r107 for a 4.7k one and problem solved | Junio kleber |
| LG | CP 20B85 | Green screen. | Zd 504 (18v) | Replace the same | BARRETO CRUZ |
| LG | CP - 20B85 | Burning transt. horizontal output | Flayback | Replace the same | BARRETO CRUZ |
| LG | RP14CB25A MC059A | Pulsating and low power supply | R806 o.22r changed | Replace without measuring | PAULO-PS ELETRONICA/MACEIO-AL |
| LG | RP 20CB25A | Blue screen without video retrace lines across the screen characters do not appear | Audio ok | Fred Souza | |
| LG | 50PA4500 | Turn on and off | Check chap. c802 22nf | ||
| LG | 29CC9RL | When turned on, there is no audio, after a while the sound returns to normal | Lack of filtering on the 14v power supply | marcelo marques | |
| TV - LG | 29FS4RL LG | White screen with lines - note the TV has normal sound | Check fr404 of 0.5r open - can be replaced with 1r - power supply comes from pin 5 of the fly back video screen | Color tec mauá Arnaldo | |
| LG | 42PQ20R E 42 SCARLET | It turns off and/or freezes, it keeps making little clicks in the speakers! | There are two 10yf metallic capacitors on the main board, they are close together almost at the top edge, remove them and put 10yf/50v normal electrolytics and that's it. | Replace metallized capacitors with electrolytic ones. | Ádrian Chapadão do Céu-Go |
| LG | RP-21FE85G | No sync | R512 altered from 4k7 to 5k2 | mecinhor7 | |
| LG | RP29FE80 | Doesn't start | All normal voltages, but r405 is heating up and no voltage reaches the horizontal drive. | Processor defect, I replaced it and the TV worked. | Eletronica casa dos monitores itumbiara -Goiás |
| LG | 21FU4RL MC-059C | It doesn't work, it just stays on standby | Chap. electrolytic without capacity c311 2200-25v | Replace | Claudio Jd. Paulista baixo |
| SOM LG | LM-U1560A | Display turns on normally, all functions ok. no audio in the boxes. | Absence of 35v +b. | Despite having replaced the ic901 and pc901 photo, this voltage did not appear. I added a 470k resistor between pins 3 and 4 of pc901. problem solved. | paulorusso |
| LG | 21FU4RL | Turns on and then turns off | Capacitor c308 47/16v changed | Replace c804 | juliofamaral |
| LG | 21FJ6RB MC 059A | Does not oscillate | Head c 523 of 470 . 10 v | ric |