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 | RP-21FE85G MC-059A | The LED doesn't turn on when you press the power button to start it, but it doesn't help and it overcharges the power supply capacitor! | Fly-back | Replace the fly-back 6174v-6016a without measuring and run for the hug! | Sinailson furtado |
| LG | 32LS3400 | Turns on but has no image. the black light turns on but tsound is no image.. | After checking the voltages on the main board I saw that tsound was a lack of power on the BGA chip. cause of the defect ci402 this ci that regulates the voltage of 2.5v.. it was giving 0.12v. | Replace the 2.5v voltage regulator IC402 on the main board | Diego de Lima Costa Nova Timboteua Pará |
| LG | 21FU4RL-L3 | The LED lights up, but when you press the image button it gives the signal but the image does not come on | The LED lights up but the image does not appear | Ivan Francisco de Paula | |
| LG | 21FJ6RB | When plugging it into the socket, the LED would light up, but it wouldn't turn on with the control or the keyboard. | C11, c12 and a small crystal next to the two capacitors, close to the micro. | Replace of the three mentioned, TV was ok. | Rdontônio-Acre |
| LG | 26 LX ER YP2632T | The green pilot light comes on, and the relay engages from time to time. | The power supply yp2632t has voltages 3.3v and 5v, and does not have the other voltages "33v, 24v, 18v, 12v and 6v" | After replacing all the electrolytics in the power supply, the same symptom remained. replaces polyester "c104 0.47μF 400vdc" ok it worked | Paulo Costa |
| LG | 42LB5800 LJ46B | No image. audio only. | Many shorted LEDs and one open. to replace. | As a precaution, I lowered the current in the circuit. I removed the inverter resistors r817 and r818 (both 4r3). the measurements went from 212.8v and 91.6ma to 203.9v and 68.7ma. | Eletrônica R-Tec |
| LG | CM8350 | Is demonstrated. with LG demo music. | Check and replace front panel switches | Ricardo silva (PA) | |
| LG | 32LH20R LP91A | When turning on lamps, it blinks and goes out. | T-con plate. | This TV doesn't turn on the backlight if you disconnect the LVDS cable, sound's a tip! | BRITO |
| LG | 32LY340C | No image on the entire display. only one corner had an image. | Almost all LEDs shorted. only one worked. | I lowered the circuit current. I removed the inverter resistors r816 (8r2) and r817 (1r). the measurements went from 64v and 100ma to 62.5v and 76ma. | Eletrônica R-Tec |
| LG | 49U6565 | LED power supply changed | R804 of 10r | Replace r804 from 10r to 22r | Multimarcas/Acarí |
| LG | 21FJ8 CW81B | B+ 78v led on, power b+ goes down, led turns off and on and b+ goes up to 110v | C 814 220uf/160v with 207mf killing the voltage of b+ | GDP2 | |
| LG | 50 PLASMA | Dull drizzling image | Open resistor | Resistor 0,22Ω placa ysus | adelcio |
| LG | RP20CB20A SC-023A | Audio and it took a while to respond to the keys | D23 em curto no pino 58 do ic 501 pino do scl | Replaces with a diode: 1n4148 | LUCINALDO |
| LG | 42LE4600 | LED blinks stuck on white TV won't turn on | C204 ec205 both electrolytics 220nf 6v | Replace with 220nf 16v | Medeiros |
| LG | 50PB690B | Distorted image and turning off | Power failure vs. | Changing the resistive network r902a to r905 | GL Eletrônica |
| LG | CM4330 | League for 30 seconds enter sprotectio | C726 curto.ao side ci audio | Replace it and it's zero again | George Eletrônica Milênio |
| LG | 32LF20FR | TV doesn't turn on | Diode, capacitor and fuse blown. | Replace the diode d601, capacitor c600 (they are between the transformer and the high-voltage capacitors) and the fuse f100. | Darci Denzer |
| LG | W1943-PFV | LED lights up directly with rapid blinking and no image. | Voltage from 3.3v changed to 2.8v. | Replace capacitor c354 (220mf-16v), on the main board. | Roni Eletrônica |
| LG | 32LB9RTA | Weak standby LED and 5v power supply with 2v or less | Changing the electrolytic capacitor c506 10x50 in the power supply primary | Resistronic resende | |
| LG | 42LY340C | No image. audio only. | LEDs short and open. | Replace short and open LEDs (3 in total). and I lowered the circuit current as it was the second repair on the same device. I removed the inverter resistors r817 and r818 (both 4r3) and added another one in series of 4r3 to the existing r816. getting 4r3 + 4r3 in r816. the measurements went from 142.4v and 91ma to 133.7v and 60ma. | Eletrônica R-Tec |