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 | RP-20CC20 | Dark screen, asezo filament with sound. | (solved) measuring the +bs they were all normal, except the screen voltage which was +/- 200v. releasing the screen wire and measuring the voltage, maximum 400v. it was wrong, it should go to 700v +/-. we released the focus wire, and we measured the screen voltage, and manipulated the potentiometer, the voltage went to 700v +/-. the socket was leaking. replaced, the TV returned to normal. | lucas40 | |
| LG | 29FX5R | Vertical closed | Replace the vertical output and the rf405 resistor | Resolved | Jiliarde, fabrcio e cristiano |
| LG | RP20CC25 | Doesn't tune the channel, it just keeps drizzling | Varicap | Replace -lo | Eletroclaudio Aguas Belas PE |
| LG | FLATRON L192WS | Monitor turns on and after a few seconds the lights turn off | Due to oxidation on the terminal of the inverter lamps, it was just a matter of cleaning and re-soldering it and that's it. The problem is that you have to disassemble the entire display. | jOÃO VICTOR | |
| LG | 21FS4RLG-LS | Does not turn on, turns on standby | I used the hairdryer-humidity | vida | |
| LG | 21FJ6RB | No contrast | Diode (d 502) shorted | Bruno Nicacio This email address is being protected from spambots. You need JavaScript enabled to view it. | |
| LG | CP29C85 | Outlining t. horizontal | Which one due to | Solution | |
| LG | 29CC2RL | Dark screen, tsound is sound, filament does not light up, 200v voltage only has 100v, horizontal output boils | Flay back | lord | |
| LG | CP-21Q24A MC-83C | Washed image, no contrast | Does not act contrast | R547 and it can also be a defect in other components of the app | johnny busnadiego |
| LG | RP 20CC25 | Part and short | Horizontal output q 402 (tt 2170)l short, I replaced it and the problem continued | After checking the normal power supply, I found fr 403 open, it is on the +b line, I replaced the TV, it was ok | george pontes |
| LG | FLATRON-W1934 | When turned on, the screen turns on but then turns off: this LCD was turning on but after about 2 to 5 seconds it turned off leaving the screen completely black | When it was turned on while the lights were on, you could hear a low, high-frequency hiss, as if something was sparking, at first I thought it was the power supply, but when I put my ear close to the plate I realized it wasn't from the The power supply of this hissing was from the end of one of the lamps, so I disassembled and checked this lamp, which had an oxidized wire right after soldering its terminal, I removed the oxidized part, I redid the solder on the lamp terminal and the LCD started working normally again. . | This email address is being protected from spambots. You need JavaScript enabled to view it. | |
| LG | RP-20CC20 | Cutting out the sound | Cold welds | Resolder saida de som e ic804 (12v) | MB ELETRONICA |
| LG | RP 20CC97 | TV generates high voltage and cuts out. | R815 100k open | Daniel | |
| LG | 14CB25A | Does not turn on, if you enlarge the screen, it appears closing horizontally | If fr501 has approximately 90v, replace photocoupler. | MB ELETRONICA | |
| LG | CP15Q90A | Does not turn on, after changing the power supply s.h transistor it drops when the pw key is pressed | In addition to the s.h. transistor. the s.h. transformer can be used bu1508dx. Even though I tested it with the fly tester and it said it was good, it also had to be changed | Bruske | |
| LG | RP-29FA30 | Turns off, gets a red screen, doesn't enter channels | Dz11e dz12 | Replace without measuring | CARLOS.AFRO |
| LG | L1550S | When turning on, the image flashes and then goes dark. | Fault in c202, located on the power supply board. | Replace c202 with a 470µf x 35v capacitor (or greater than 35v). | Dark Fox |
| LG | L1550S | When turning on, the image flashes and becomes dark | Breakdown in c202 | Dark Fox | |
| LG | RP29CC90 | Defect: 4 scratch at the top of the image | Cause: memory error | Rewrite eeprom | klein |
| LG | 42SL90QD 47SL90QD | Sometimes it doesn't turn on or off and other times the volume bar appears and the keyboard becomes inoperative. | Keyboard cable pinched by the cover. | Changing the thread path so that the thread does not crush when closing the product. lg bulletin 0424.0 |