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 | 21FX5RL | Turns on, after a few minutes it turns off. "back to stand-by" | Change r 420 of 240k open connected to q 403 | resistronic.blogspot.com | |
| LG | CP-14J52 | No picture, no contrast, normal sound | Defective d502 diode | Gilcimar Rocha Pereira | |
| LG | RP-14CB20A | It doesn't arm, the stand by LED doesn't light up, no power supply +b,sh ok | C417, 471k/2kv shorted | Without tsound is no voltage at +b and the horizontal output is ok, replace it without testing c417, even if it is shorted it cuts the voltage at +b giving the impression of being tsh or sh Just replace c417 and it works | EPATEC-ELETRÔNICA PALAURO-ES |
| MINI SYSTEM LG | LM-U1350A *** | I'm sound | Mute circuit for leaky transistors Q701 and Q720 | Take out | wagner |
| LG | 29CC9 CW-62A | Capacitor c883 (33u/500v estourado) | C837 (330u/400v)seco | jjsantos | |
| TV LG | CP-14B86A | Vertical deficiency | Power supply 115 low | Capacitor c 814 sem capacitance | JOAREZ JACUPIRANGA |
| LG | RP14CB20A | No video | D405 shorted | Replace d 405 | edinaldo |
| LG | RP 29FA30A | TV turned off just making a noise oscillating thick thick thick... | The horizontal output was shorted q 401. after the change the TV had the image oscillating in width and at the same time closing the frame, c 407 open and d 403 shorted | Before changing q 401 (st 2310 hi or fx) check c 407 (27 nf/630v) and d 403 (gp15jr). | GEORGE PONTES |
| LG | 21FJ6RB MC059A | Pinkish screen with retrace lines | Q 903 short -solved | Voltage of 180v low on the collector of the same | betoteck |
| LG | RP14CB25A C49 | Vertical beam | R808 | ze nunes | |
| LG | RP29FA35A | Generates and cuts as if it were a shorted deflector | C411 sem capacitance | Replace c411 | ANTONIO NOBREGA(patos.pb) |
| LG | CP20B84 MC58A | Does not turn on/ power supply+b with 75v+ou- ./12v with 7v and 24v with 12v, the TV simply does not start | The filter capacitor { pi} of the power supply, 112v, c821 100/160v | Replaced the same one that no longer had capacitance, the TV worked perfect | az09 |
| LG | CP14K40 MC83A | Image closing on the sides, like a cushion effect, and a rainbow effect on the edges, which heats up too much in a few minutes. | Replace c417 220p/2kv. | Check for normality in the TSH heating, in the second case, replace c414 682/1600v (mpp) | MANTENOPOLIS |
| LG | CP 20K70 | Works but with dark image | R547 100k open check tmb d502 | Resistronic.blogspot.com | |
| LG | RP- 20CC20 | Loud sound and keys do not obey | Eeprom | ||
| LG | LM-U1050A | Everything works normally but tsound is no audio, you just hear a low hiss from the speaker as if the mute had been activated | Headphone input | Put on a headphone if it works, replace the input (jack) | beto2828 |
| LG | 29FX5CL | Turns off when turning on high power supply | Resistor alterado r861 3k9 | ECeletronica | |
| LG | LM-U1350 E SIMILARES A ESTE CHASSI | Burnt sound output, making sure it wasn't misuse or bad speakers | Supply +30v varying, change components eg: photo, resistors connected to the kia431 | The burning being caused by the power supply, the card is rarely repaired, replace the sound card. | ARS |
| LG | DR175 | Screen indicates menu to enter the progressive scam, flashing | Keys leak | Always replace all touch switches on the panel | ARS |
| LG | DV9941N | Difficulty playing DVDs and sometimes it won't turn on | Deficiency in the +3.3v power supply, giving 3.2v or less | Swap c121/c122 | MAIRES |