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 | 20FK3RB | Channel going out of tune and stuck on channel 2 | 30k resistor r114 close to open varicap | tecnicofreitas | |
| LG | 14FK3RB | TV doesn't work, any key on the control or on the panel | Cleaning the board and resoldering all electrolytics | nelsival | |
| LG | 29CC9RL | Works for a few minutes and turns off | Change the photo coupler | Ademar - Videira SC | |
| LG | CP 21Q24 | It doesn't oxidize, it has normal +b, it just doesn't have +b on the 12 volt regulator output (78mr12) | Change ram memory | Ademar - Videira SC | |
| LG | DIVERSOS | It works and some time later the screen darkens. | Resolder the tube plate | Ademar - Videira SC | |
| LG | 21FU1RL | Reduced frame especially on the sides | C 414 com 12n normal e com 18n | tonico | |
| LG | 21FJ6RB | Greenish image missing the red color and turning off by itself @@@ | Image tobo Just change | ELETRONICA ARNI-LEOBERTO LEAL | |
| LG | 32LG30R | Doesn't start. TV turns on and after turning it off using the remote control, it no longer turns on. | Probable cause; c108, zd111 and zd112 ( smd) power supply. | In the protection circuit you will find components c108, zd111 and zd112, they must be removed from the circuit! put; portaldaeletronica forumeiros.com | Fórum Portal da Eletronica |
| LG | 21FUR1L | LED turns on and off secondary power supply without voltage | Strw6754 and diode d 301 short | MACCELETRONICA | |
| LG | RP-21FE85 MC-059A | Vertical open only 2 cm with drizzle | C-307 100x35v | Replace -low capacitance | LUCIANO |
| LG | 32LD420 | Intermittent operation, turns on and off instantly, sometimes it works for 10 minutes and turns off again, the standby mode is flashing. | Oscillating voltage on ic 600, change r 610 to 100k. | WAGGUINHO | |
| LG | 29FA35A | Vertical completely closed, but the horizontal line is reduced by 10cm on each side of the trc. | C-827 1000µf / 10v shorted. lack of 5v in ic-822. | py1acb | |
| LG | CP-15Q90A SC023A | It worked and stopped in a few seconds, the horizontal output heated up and it didn't turn on anymore, it only turned on after 1 hour and the same thing happened | Horizontal output 2sd2627 defective, I measured it on the multimeter and it said it was good I put bu 2508dx | Marcio magalhães eletronica | |
| LG | 21FU4RL CW81A | No audio in rf and av | C611, 47 x 25v killing the voltage of the ci 601 la42102. | Novato | |
| LG | RP-14CB25A | Vertical closed | R311 c311 | carlinhos100 | |
| LG | RP20CB25 | Black band on the sides, horizontally partially closed and with instability in the frame. | Replace fly-back | Luiz Elones | |
| LG | RP-14CB25A MC-059C | Image with reduced frame | +b with 86v, changing the photo coupler | Note: check the 1n4148 diodes because in these LG models the terminals oxidize and leak. | hipereletronica service(marcelo maraial-PE) |
| LG | RP-29FA35A | No audio from left speaker. | After racking my brains looking for faulty components in the audio I discovered that the problem was a crack in the headphone jack solder! | Altevir Lima/ Valparaíso Eletrônica [Ananindeua- PA] | |
| LG | 21FU4RL MC-059C | Closing horizontal | L401 open and c420 dry | Replacement | Eliel |
| LG | 21FU4RLG MC-059C | Low power supply 79 volts on stand by | X1 crystal oscillator | Replace | LUCIANO |