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 | RP20C25 | I'm sound | Check headphone jack contacts | Ademar / Videira sc | |
| LG | CP 29K30A | Doesn't work | Replace damper diode that is connected to the horizontal output transistor collector | Ademar / Videira sc | |
| TV LG | 29FE8RL | Turn on and off | Check cold welding on jammer 833 of trafo t-801 | Ademar / Videira sc | |
| LG | TC 2033N | Doesn't work, with little +b on the horizontal output collector | Replace the d-825 in short | Ademar / Videira sc | |
| LG | RP-20CB62 | No sync | Change or rewrite the eeprom (memory) | Ademar / Videira sc | |
| LG | 20CB20 | Image without contrast | Replace zd-501 zener (9.1 volts) and diodes d-501 and d-502 | Ademar / Videira sc | |
| LG | 21FJ8RL | Turn on and off | Change the vertical output stv 9325 or stv 9326 or la-78141 also change the diode d-302 use 2 1n-4007 | Ademar / Videira sc | |
| LG | 21FJ8RL | Frequently burning the vertical output ci | +b with 30 volts that feeds the output, lower it to 26 volts, replace the 1r resistor and place 15r resistors that are on the CI power supply line and come from the fly back | Ademar / Videira sc | |
| LG | 21FJ5RB | Burning horizontal output and 1r resistor that feeds the +b of the fly back. | Change the strw-6753 regulator and the photo coupler, secondary power supply too high | Ademar / Videira sc | |
| LG | CP-29K35 | Burning the horizontal outlet | Changing the 27k c-404 capacitor is close to the deflector connector | Ademar / Videira sc | |
| LG | CP-20K70 | Sound I am / sound is the audio | Replace diodes d-501 and d-502 | Ademar / Videira sc | |
| LG | 21FS MODELO NOVO | Turns off intermittently | Check the (r-420) 240k open / check the 1r6 resistors in parallel that feeds the +b of the fly back, obs usually has one open, eliminate the q-16 and finally if everything is good add a 390r resistor with the c-409 | Ademar / Videira sc | |
| LG | 21FJ6RB | Q 402 broken after the replace, - the most b 110v fluctuated a lot (fr 403) | Q 402 e for 403 | Alextecnico | |
| LG | 21FU1RLG | Heating or roasting ic 401 (tda 8145) | Check the l-401 and l-403 coils | Ademar / Videira s.c | |
| LG | LG21FU4R | TV with the relay arming and disarming if the +b with LED turns on and off | Shorted capacitor c525 (470/16v) on the hvcc line, replace it. | Note; for it to generate you have to loosen the base of the q16 protection transistor and that's it.. electronica souza | dedley |
| LG | 42PC1RV | It makes a hissing sound, the image goes dark and turns off. mainly cold. | Ressoldas power supply, environment u801 | joaomvjr | |
| TV LG | CP 29K30A | I'm sound | Change the audio processor ci, instead of the original (msp 3440g-b8-v3) the (msp 3425g-b8-v3) can be used | Ademar / Videira sc | |
| TV LG | 21FX5RL | No image and sound in av1 and av2 | Replace ic la7958n | Ademar / Videira sc | |
| TV LG | RP 20R25 | I'm sound | Check headphone jack | Ademar / Videira sc | |
| TV LG | 29K30 | Doesn't turn on, doesn't work | Replace damper diode that connects to the horizontal output collector | Ademar / Videira sc |