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 | 21FX5RL ALFREDO NETO | Normal sound, no image | After checking the voltages of the RGB, 180V of the filament I decided to change the 122k capacitor on the screen and it continued the same way | The solution was to replace the kinescope | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| LG | RP-29CC26 BRS | Dark screen about 5cm on each side | Cracked solder on the d401 terminals | Domingos da Eletronica | |
| LG | 29FS4RL | Don't care, tick, tick | Shorted horizontal output transistor causes altered flyback | Replace the components mentioned, obs. important, this model is still in stores, I got this TV under warranty, this flay is burning a lot, it is not available for sale in stores, only in the authorized solution found, the flay with code bsc26n2138 replaces the original of this model and I just run for a hug because Depending on authority is a blessing, dear colleagues, and a virtue, God blesses you all. If you have any questions, just let me know | fernando timbauba PE |
| MICROONDAS LG | MS115ML | Doesn't start | Low transformer open due to energy overload | Replace the same | eletronicaapolo |
| LG | CP20K40 | Loses audio when it heats up | Main board | Resolder main board | eletronicaapolo |
| LG | 29FS4RLG | No image, no focus | Ic301 | Replace vertical output, (stv9326) you can also use la7804 instead | ELETROSONIC (GARANHUNS) |
| LG | 21FU4RL MC059C | Vertical closed and acting protection | C312 0,68mf/50v | Don't measure, just replace | PAULO |
| LG | 21FU1RLG | Power supply in stand-by, does not activate horizontal oscillator. | 32.768khz crystal. When it warmed up, the TV started working again. changed, the problem was resolved. | Arthur Mauricio | |
| LG | CP-20K70 | Low power supply does not exceed 28 volts and does not oscillate. It keeps ticking or LED blinking | R804 open | MACCELETRONICA | |
| LG | 29FS4RLG-LG CW-62A | Image folding only at the bottom | Ic301 (vertical) tda4863aj | Replace the vertical and move on to another device. | Helio (Eletrosonic) |
| LG | 21FX5RL | Normal image very low sound | Fr825 aborto | eletroclaudio | |
| LG | RP-29CC25BRS | No image appears - normal sound | Saida vertical queimada ic 301 (la 7840 | Tyko | |
| LG | 21FS4RLG | Dark screen, normal sound | Even turning the scrim up to maximum, with the filament lit, the screen was completely dark, normal RGB voltage at 185v | I measured the c908 at 122k and even though it measured well I replaced it, ready!! defect resolved. | ELETROSONIC (GARANHUNS) |
| LG | RP20CB67 | Power supply oscillates, but TV does not turn on, the voltage of +b (110v) after a few seconds drops to 87v and flayback stops generating at. | Ic802 photo coupler | Replace photo and move on to another!! | ELETROSONIC (GARANHUNS) |
| LG | 21FJ6RB | Dead | Ic801/str-w6753 e saida horiz.q402/2sc6093 | Replace mentioned items | eletronicaapolo |
| LG | RP29CC25 | It just stays on standby and doesn't turn on | Replace ic 853 and 855 sw pin shorted to ground | ||
| LG | RP29CC25 | Normal sound but with black screen without brightness | Replace q 509 | multsom | |
| LG | LM-730A | Everything works but tsound is no audio, output ok | In my case ;ic 601 tda 7429t, | It was just to replace the ci smd | BETOTECK |
| LG | CP15Q90 | No contrast, even with the control at maximum. | D502 shorted or altered. | To replace | Moura (Belém -Pará) |
| LG | RP-20CB62 SC-023A | Vertical closed at the bottom | R316 1k changed | Replacing the resistor | NelsinhoPira |