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 | L226WTQ | White screen with no image | Transistors q901/q909 kta1273 open | Replace both, you can use 2sa1273/2sb892 | jheliocavalcanti |
| LG | 32LK331C | Restarting after a few minutes on | Replace electrolytic capacitor c218 on the 680uf/35volts power supply board, completely exhausted. I put a 1000uf/50v capacitor in its place. defect resolved. | wanderzip | |
| LG | 42LB9RTA | Does not turn on LED changes from red to green but does not turn on | Shorted inverter board! repair or replace inverter board | Paulo Borges eletro | |
| LG | 14FK3RB | LED lights up and then goes into protection | Shorted vertical output | Electronics bastos elísio medrado ba | Eletrônica Bastos |
| LG | 42LV3500 | Does not turn on, power supply inoperative | Fuse f101 open and diodes d501, d502, d503 and d504 shorted. | Replace defective components | NiloTech |
| LG | 43LH5150 | The screen LEDs blink and then go off and tsound is sound | Each led bar has an smd diode just remove them | Measuring with the LED tester all the bars are the same but it doesn't work | Ariel Santos |
| LG | 26LG30R | All white image, with sound | Ci 4925b (q1101) defective (near mainboard power connector) | Ci replace | FILIPE FURTADO |
| LG | 32LG64UR | Turns on makes a noise from the speakers and restarts | D1103 failing, running diode scale test shows no failures. | Just replace and stick the cat | WVMP |
| LG | 32LJ600B LJ7 | The screen LEDs blink and the TV doesn't work | 30 volt inverter power supply failure | Touch main board | SANTOMEL |
| LG | 32LJ500B | Dead | C9118 shorted and r9901 open | Replace c9118 (101k/1kv) and r9901(0.1r) | Multimarcas/Acarí |
| LG | 43LK5700 | TV doesn't even have LED STBY. | Check near the charred l2320 power connector. probable short in c2371 and c2372. | Jocimar | |
| LG | 32LE5500 | It turns on with a long whistle, activates the power supply but tsound is no image or sound | Two smd capacitors in position c8030 and c8028, just remove them and run for the hug | Airton Filgueira | |
| LG | 42LA6204 | Turn off the screen LEDs | After 6 hours the LEDs turn off, causing q801 and 804 (kf9n25 or mdd7n25) to open | SANTOMEL | |
| LG | PTV32D12D | I'm sound | Ca23 smd capacitor I put a 10k ceramic capacitor it worked perfectly | DANIEL ALVES DA SILVEIRA | |
| LG | 49UB850V-ZD LD41V | LED flashes 2 times and does not turn on, voltages 3.5/12/24 v correct, tsound is no voltage in drv 3.1v and the 12v in f1 of the t-con. | TV turned off and the next day it didn't turn back on. | Processor with cold solders, remove the heat dissipation part and heat the processor IC at 400ºC for 3 minutes. | WebLogs |
| ELG | RAD226B | Turns on with the panel off, killing the daughter voltage | Just change the gun and run for the hug | NANDO ELETRONICO DE SAOJO DO ARRAIL PIAUI | |
| LG | 14 SC-023A | Has OSD vertical black screen closing at the bottom and a little at the top | D501,d502, r420,r421 e r301 | Replace the 1n4148 diodes, the image does not appear, the resistors r421 300Ω, r421 vaad r301 1k vertical solution | Rogério TV |
| LG | 32LB9RTA | Sound is muted and increasing the volume returns | C216 (470ufx10v) on the 3.4v supply, I replaced it with (1000ufx16v), the defect no longer appeared | Lucafer | |
| LG | 32LH515 | Short on board, won't turn on | Chap. smd 502 short | WAGNER | |
| LG | 22MT45D-WS | Horizontal stripes/bands, medium greenish, random, changing place. | External power supply dropout filter capacitor. 1,000uf /25v. | It seemed like bad contact on the LVDS cable and sometimes even on the internal tracks of the board. I looked through everything on the TV, replaced the lvds flat, etc. In the end, the problem wasn't even with the TV itself, but with the external power supply. When I turned it on with the bench power supply, the TV turned on normally. observation: when measuring the capacitor mentioned in the previous field, with the capacimeter, it was fine, but when measuring the power supply output with the oscilloscope (with load), it showed noise, without load it did not. | Fabiano Ferreira |