LG TV Repair: Common Faults and Solutions.
Search: LG
Results: 4834
Results: 4834
LG Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | 42LB9RTB | Doesn't start. | Power supply blowing 5 amp fuse. | Replacing the sd20n60 mosfets. if you can't find it, use the 30n60. | BICHARA |
| LG | MCT806 | I'm sound | D934 d935 change without measuring | 12v missing no cn901 | Ogeid |
| LG | LM-U1050A | No audio | All normal voltage plus the low 3.3v giving 2v it alienates pre | Lack of 3.3v in my case it was d986 but tsound are 3 didos on that line | beto2828 |
| LG | 21FU6TL | Skipping channels, without commands as if tsound were some shorted touch keys or memory. | After many tests I found the crystal shorted l4.5c... (z602) | Replace for the same | EletrônicaBastos |
| LG | 47LB7DF | Does not turn on nor does the LED light up | Primary power supply ok! the problem was the shorted pwm u502(ice3b1565j). r508(2r2) open and c202 and 206(2200uf/16v), stewed!. | Luir | |
| LG | 47LN5400 | The standby flashes but does not turn on | Tsound is no 12v or 24v at the power supply | Defective pfc font. it was low only with 320v. | EDUARDO TOMAS SILVA |
| LG | 32LX2R | The power LED doesn't even light up | Electrolytic capacitors | Follow the tips above, in my case it worked. | EDUARDO TOMAS SILVA |
| LG | 42LD560 | Lg symbol and white horizontal lines on the right side of the screen | Reflow no bga | white horizontal lines lg | Luir Frank |
| LG | 42PJ350 | Burning transistors z sus board | Defect coming from the y sus board had two 30j124 transistors burnt. It was replaced but the image came out blurred burning the 30f14 transistors from z sus defect caused by the ci adun 1234 on the y sus board | Replaced adun 1234 solved the problem. | argentino marcos |
| LG | 32LS3400 | Image in the background without LED light | LED burnt out on all 4 bars | Complete bus replacement, LED voltage reduction. | lojas trovarelli |
| LG | 21FJ8RL | TV arms and disarms, generates high sparking | R806=39k changed measuring 68k | Replace it with another and run to another | Antonio Carlos (Eletrônica Renascer) |
| LG | 47LH70YD | The relay keeps hitting | Tsound is no 12v or 24 at the power supply | In my case it was the pfc power supply that was defective, it had altered resistors in the reference divider. | EDUARDO TOMAS SILVA |
| LG | 32LN549C | LED blinking non-stop, TV with normal image in the background and black light flickering | Defective ic801 map3202 | Replace | PS eletrônica |
| LG | LM-U1350A | Display fraco | Capacitor c976 de 330x16v na power supply. | Ogeid | |
| LG | 29FU1RL CW62C | Image darkening | R408 from 6k8 open | 3R | |
| LG | 32LG30R | Turning off after a while sometimes it doesn't turn on | Pfc circuit low around 270v normal around 390v | Resistors in pfc mesh | DEBIQUE |
| LG | 42PJ350 | When 0 turns on, it activates the relay and goes into protection | T 801 cold welding | DANIEL ALVES DA SILVEIRA | |
| LG | 29CC9RL L1 CW62C | Clear screen without video with retrace | Line resistor abl r408 open...(in the 1k scheme...in the 15k chassis) | Replace or r408. | ggn |
| LG | 21FJ8RL | Horizontal outlet heating until burning | C412 304 400v | Replace the same | rafael melo ig miri pa |
| LG | 50PT250B | The image disappears after a while and the sound becomes normal. | Loss of voltages vsc and vy causes image loss. | Resolder the ysus board with a focus on the transformers close to the vy | Antony Garcez |