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 | FLATRON W1642C, MONITOR DE PC | No video | Two swollen capacitors at the switched power supply output | Replace the capacitors | Edson Silva |
| LG | 29FU6TL | Power supply low with only 80 votes in +b and all voltages low | R 801 36k | SEVERINO ALVES | |
| LG | 42LM3400 | The TV turns on and has audio but the back light does not come on. Normal TV power supply. | All LEDs were tested. and they were good. defect, bad contact in the jack of the LED bars | DF ELETRÔNICA ALAGOINHAS-BA | |
| LG | CM8340 | Works normally without sound | 39k polyester capacitor large square yellow | Capacitor losing capacitance | Gel |
| LG | CP-14K42BRS | This TV arrived with the vertical failing. When changing the vertical, the TV starts at the armpit power supply, generating high voltage and returning to the stand bay. | C408 | Replace the 10μF50v c408 and the TV will work normally. | Sinailson furtado |
| LG | 47LA6200 | Turns on and off when the screen goes dark | Shorted blacklight bus LEDs (only one), I replaced and redid solders on the power supply board | LOOPTEL | |
| LG | RP21FE85G | The TV works normally but after a few minutes the service has the screen from top to bottom full of retrace lines. | Ic804 | Replace the IC804 without measuring and the TV will work normally. God be praised! | Sinailson furtado |
| LG | CM4650 | No audio comes out, with the time on it appears on the display protect | Lack of power at the sound output, caused by the power supply part. MOSFET pin 17n80c3 (q901) broken, zener diode 20 volts (zd912) short circuited. | Replacement for 17n80c3 and 20 volt zener. | Carlos Alberto (Eletrônica Baturité) |
| LG | 42PJ350 | Sometimes it turns on and off and sometimes it doesn't even turn on r112 680 k changed | Replace | It could also be one of the others in the same line | antonio nobrega (patos pb) |
| LG | CM4430 | No sound in a few seconds triggers protection | Fotoacoplador pc903 | Kel Araújo Assistência Técnica M6 FSA-Bahia | |
| LG | 60PB6500 | Turns on and then turns off | Power supply vs high 240v | Open coupler photo. ic503 | Eletro Center |
| LG | 32LJ600B LJ7 | It doesn't turn on, the LED doesn't light up, the internal 3.3v power supply pulses, appears and disappears. | Capacitor in parallel with the zener diode on the wifi board | Shorted capacitor on the wifi board, in parallel with the smd zener diode close to the connector | MIGUELTV |
| LG | 14FK3RB | It didn't turn on, I wanted it to start but the LED didn't even light up. | Cold soldering | Just replace q402 | js eletronica |
| LG | 42LG60FR | Green or other color image | Corrupt file in ic802 | Re-record with the file of a normal one | Airton |
| LG | 29LN300B-PC | No image | Q1002 | Replace the q1002 | JORGE TV PARANA |
| LG | 21FU6RB | Power supply between 70 volts from standby without 5 volts at the output of the kia78r09 and the micro certainly | Change the computer | Replace the computer | FRANCISCO VILA BU |
| LG | 21FU6RB | Power supply between 70 volts from standby without 5 volts at the output of the kia78r09 and the micro certainly | Change the computer | Replace the computer | FRANCISCO VILA BU |
| LG | 21FU6TL | The relay hit and it didn't turn on | R 842 27k downgraded to 180k | The r 842 was replaced and the TV turned on normally | ELETRONICA JUNIOR BELEM PARA |
| LG | 21FU1RL | Lack of horizontal and vertical synchronization | R512 22k changed, it is close to the processor | Replace | Dj Velk |
| LG | 42LD460 | Do not tune the channels | Change the varicap | Checked the voltages and capacitors, if the coils were not short, everything was ok, the varicap was replaced and the TV worked perfectly | Carlos Cemag |