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 | L203WT-BX | Monitor turns on and turns off after a few seconds, you can see that one of the lamp transformers heats up slightly. | Junction of the transformer wires with the lamp terminals charred by heat or poor contact. | Dismantle the entire screen, clean the lamp terminals well and reconnect. if possible, isolate with natural curing silicone (not acetic). | ASSOLINI |
| LG | 21FJ6RB | Lg tv black bands on the sides without rf signal with retrace lines av works with blue band in the center | Memory | Replace the same | Adrianosecreta |
| LG | 29FS4RL | It doesn't work without + b just knocks the relay | Photo coupler | DANIEL SOLÂNEA PB | |
| LG | 21FB32BRS RP 21FB32 | LED on, press key, start, oscillate and cut off | Flay bek | Just replace and run for joy | eletronica martins ubatuba |
| LG | 42LG60FR | Catching fire in the power supply capacitor c 700 220k x 450v | C 700 220k x 450v | 220k x 450 v | ELETRONICA MAURI JUNIOR |
| LG | 32LD420 | Screen flashes 3 to 4 times and turns off | Diodo zener com fuga d512 15v | Alvaro (prolar) | |
| LG | CP-20B85 | It doesn't oscillate, it just turns on the LED. | C406 100uf 16v dia de ze dias | Replace | EletroClaudio Aguas Belas |
| LG | CP20B85 | Lack of contrast. | D=502 open | Replace for a 1n 4148 and blz | ELETRONICA MEDEIROS |
| LG | 21FU1RLG | Does not tune the channels. | 30 volts of tuning voltage were missing. the resistor 114 (30k) was open, I replaced it and everything was ok. | valmirgold | |
| LG | RP-20CC25 | STBY LED goes out, normal sound on all channels and normal secondary voltages, but the horizontal one does not start. | Cold solder between the metal ring used to reinforce the solder on terminal 1 of the flyback and horizontal output collector. | A little tip: this cold solder was invisible even with the magnifying glass. I solved it as I usually do with this type of crack: preferably at night, turn off all the lights in the workshop and lightly twist the plate, a small spark should appear, mark the spark point and turn on the lights and redo the welding, it's a shot and fall. I delete them all | Altevir Lima/ Valparaíso Eletrônica/ PA |
| LG | 21FJ6RB | This TV gave me a lot of trouble, it arrived with a burnt horizontal outlet, I replaced the horizontal outlet and the TV didn't work, it turned on and then came apart, I replaced everything that was part and it didn't solve it, after a lot of patience I discovered the defect was a 1k pressure resistance r842 near the transformer. | 1k precision resistor position r842 | Diego lima nova timboteua | |
| LG | 21 FU1RL L3 | It takes a long time to turn on and when it does turn on it has a black stripe at the bottom. | C307 and c311 with low capacitance. | Replace c307 and c311. | Rondinele |
| LG | 20CC25 | White screen with retrace | Ic-501 with the rgb outputs with voltage above normal, then just change d-502 which was leaking for the contrast to act normally. hug | jorge fontes | |
| LG | T730SH | Monitor turned on but had little brightness, to appear the image you had to enlarge the screen | C346 of 103x2kv little changed and ic303 lm2476tb | I replaced the c346 and the image improved a little, but with little brightness and the image flickering. I replaced the ic303 and it immediately resolved the problem of image flickering and low brightness. | RICARDO MARQUES |
| LG | Z1FU4RL L3 | When turned on, the stand bay turned on, when activated, it turned on and off immediately and did not start | C-308 47x16 dry | Replace it for another like it | ELETRONICA CAVALCANTE EM MARTINOPOLE-CE |
| LG | RP 14CB25A MC - 059A | Doesn't start | Resistor 401 (47r) | Replace the same. | BARRETO CRUZ |
| LG | RP 14CB25A MC - 059A | Screen sometimes pink sometimes cyan | Ic - 501 (6319r55y7) | Replace the same. | BARRETO CRUZ |
| LG | CP 14J50 MC-83A | Vertical with band at the bottom and stretched, swinging. | Capacitor c316. | Replace capacitor c316 (connected to pin 22 of ic501) and c307 of 100 x 35v. | R-TEC Eletrônica |
| LG | 32LG30R LP81A | When turning on the LED flashes twice | Deficiency of the pfc circuit (power factor correction), altered feedback resistors | The values of the first 4 are 620kΩ, and replace the last resistor (820Ω) with 1kΩ and that's it. | leitemarcellus |
| LG | 29FU6TL | With vertical closed from the middle up | Open diode | Diodo d301 1n4005 | hemersonlim |