LG TV Repair: Common Faults and Solutions.
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Results: 4833
Results: 4833
LG Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | 14SB1RB | The TV does not adjust the contrast but you can see the image but with little contrast. | R406 close to 240km flyback | Replace it and you will see the perfect image very clearly. | SW Eletrônica |
| LG | 43UN7310, 49UN7310, 50UN7310, 55UN7310, 65UN7310, 70UN7310, 86UN7310, 55UM7470 LJ20 / LJ9 | Failure to turn on/ the vesses only the logo appeared and nothing else/ the vesses did not turn on stand-by light/ and the vesses just blinked stand-by | Two changed resistors | On the right side of the 3.3v regulator IC2310, two resistors, the upper one r2411 of 39k, and the lower one r2410 of 102k were altered. r2410 measuring 100k enough to cause the problem. | Rafael Nunes BOMBINHAS |
| LG | 43UN7310, 49UN7310, 50UN7310, 55UN7310, 65UN7310, 70UN7310, 86UN7310, 55UM7470 LJ20 / LJ9 | Failure to turn on/ the vesses only the logo appeared and nothing else/ the vesses did not turn on stand-by light/ and the vesses just blinked stand-by | Changed resistor | On the right side of the 3.3v regulator IC2310, two resistors, the top one r2411 39k, and the bottom one r2410 were altered. | Rafael Nunes BOMBINHAS |
| LG | 42SL90QD | Does not turn on, intermittent defect, sometimes it turns on and shows an image, sometimes it turns on without an image, sometimes it just flashes on standby. | Lge3556 processor replacement | Reballing was done and it didn't solve the problem, the chip was replaced and the problem was solved. | GABSENS |
| LG | 47LG60FR | Inoperative, many components measuring short, it was just the mosfet. | Input fuse and MOSFET Q602 15N60, | Arimateia | |
| LG | 47LA6200 LB33B | Does not turn on, LED blinks without starting. | Lack of +1.2v mtk_core (customer complained that the device starts up at the beginning). | Ic2400 replacement = bd86106efj | BRITO |
| LG | 32LC4R | No sound from hdmi inputs | Replaced electrolytic capacitor c824 47x16 thanks to whoever posted it helped me a lot | edmilson | |
| LG | 50PB560B | Turns off and on (restarts) with operating time of about 20 minutes | *only detected on the open Globo channel, on other channels and HDMI works normally | Via the remote's common menu *options*interactivity (dtvi) deactivate the function and solved the problem. due to some incompatibility of the interaction with the video circuits, it goes into protection causing a restart. resolved* helping strengthens! | |
| LG | 42LD460 | Doesn't start. nor the standby LED | Shorted smd ceramic capacitor. I replaced it with another one taken from another board and the TV turned on | Ewaldo Componel | |
| LG | 42PQ20R | Does not turn on, relay keeps beating | Diode d352 (sb3200) shorted | Replace | Gabriel |
| LG | 32LV300C | TV stuck on standby, won't even turn on with the control, tsound's 12v on the board | O.33Ω resistor in position fb9101, it was altered | After the replace, the TV started operating again | LS ELETRÔNICA |
| LG | 42LK451C | TV turns on and off, when it stays on it keeps changing channels by itself and the remote control doesn't work. | Defective touch keyboard. | If you don't need to use the keyboard. If you only use the remote control, you can remove the key1 and key2 wires, pins 4 and 5 of the connector (p2402). | Eletrônica JM/Júlio |
| LG | 60PH6700 | TV turns on all voltages but no image | After several tests including on auto gen. The cause of the defect was in the ysus board transformer, which had one of the windings open. | When I removed it from the plate I noticed that it could be recovered. After recovery, the device started working normally again. | Valmir |
| LG | 32LB560B | Without sound with image | Replacing the audio output but it didn't solve the problem | Resolder the phone output connector even with a good probe | ON-PLAY ELETRÔNICA |
| LG | 50PA4500 | Turns on without image, small click on the ysus, normal voltages. | I found a 102k ceramic c452 with a short. Went to change it and it worked fine again. | Alex Py5wx | |
| LG | 32LF565B | Does not turn on, no standby | As incredible as it may seem, a defective, oxidized standby sensor, after several tests, the defect was resolved. | Replace do sensor standby e joystick | Claudio Jorge Eckert Junior |
| LG | 29FU1RL CW62C | Burning horizontal outlet | When plugged into a socket, the horizontal output burns immediately | Replace c441-c412-c405 all replaced, when replacing them the TV worked perfectly. | REALELETRON CARVALHOS MG |
| LG | CM8350 | Equipment with the rr and fr channels low, and when increasing the volume it kept cracking. | Shorted capacitor c301 causing burnout of resistor r325 (10r) that supplies pin 8 of ic203 | Replace capacitor c301 and resistor r325. | fernandodrangel |
| LG | 43UK6520PSA | TV remote control doesn't work | Voltage on IR pin 19 of the P4000 connector unstable, below 3V. | Remove smd cap connected in series with 100r smd res that is connected to pin 19 of the p4000 connector. | Eletrônica JM/Júlio |
| LG | 20MT49DF | Nao liga, sem standy-by | Ceramic capacitor near the power supply connector (c1017 or c1016), after removal the device works normally | Flavio |