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 | 47LG60FR LP81A | I'm sound | Ic 600 ntp3000a short, just replace | Resolved | Andre |
| LG | 49LF5410 | Backlight blinking in some cases TV won't even turn on | Led bars leading with the housing | Changing the LED bars and changing r816 from 3r to 3r9 to drop the current on the LEDs, thus increasing their useful life | TECVIDEO |
| LG | 42PG20R | TV works for a few minutes and disappears audio and then comes back. | After replacing several capacitors that were getting very hot on the main board and removing the cold solders from the power supply board, I identified that the audio output was getting absurdly hot. | I did everything I could to replace components around the audio output and nothing was resolved. The solution was to place a notebook fan next to the main board. The TV has been working for 72 hours and tsound has been no defect. | |
| LG | 20CD2R MC-059A | Closed vertical, with a thin green stripe on the right side | R 313 of 47k open | GDP2 | |
| LG | 42PQ30R | Dull with audio | 2r2 3w resistor position r503 on the side of the yellow transformer on the ysus board! This one is also cold soldered and causes the same defect, or the intermittent glow disappears! | GEMASI | |
| LG | 22LG30R | After changing the power supply board, the TV turns on normally when turned off, it no longer turns on | Replace cap1026 100/16 c309 | After the replace run hug | Paulinho |
| LG | 14FK3RB MC059D | Vertical closed | Damaged ic 301 and c309 | With the replacement of the !c 301 the vertical did not open completely, the voltage coming from the t402 was low, after replacing the c309 the problem was resolved. | Ricardo Porto |
| LG | CM8360 | Does not turn on or turns on with some functions locked | Key line 2 with 2.9v instead of 3.3v | Search for leaky keys, if you don't find them, it could be a trail with the ground (chassis) | Lucas |
| LG | 42CS460C 6870C-0310C | TV turns on, has sound, backlight comes on, gives controls but tsound is no image on the LCD panel. | Short in c305. | electronicssupplyparts - Gramado/RS | |
| LG | 21FU1RL | Turns on for around 15mt and turns off | R420 240k | Replace the 240k resistor r420 | Gilberto Costa |
| LG | 32LN546B 32LN546B | Everything works, but tsound is no plot (white image) | 12v dc power supply (ic404) with voltage below normal | Replacing ic404 (t8289) requires a hot air station, ci has central soldering, does not come off with an iron. Then it's just joy | RUBERVAL SBC |
| LG | 55UJ6545 | Image freezing, sound normal | Lgsbwac72 wi-fi card | TV freezes image and suddenly the image speeds up and follows the sound, in my case just changing the Wi-Fi card solved the problem. | megasystemav |
| LG | 32LS3400 32LS3400 | Turns on with backlight, but tsound is no image. | Loose screws on the main board, poor contact in the flat that connects to the tcom. | Cleaning the connector flat and retightening the screws. | MRS |
| LG | LM-U1060A LMU1060A | Low or no sound. | I changed the strx6759 and also the PC 901 coupler and it didn't solve the problem. I added a 470k resistor from pin 3 to pin 4 of the pc 901. and a 100k resistor from the base to the collector of the q 904 3 returned to normal operation, 35 volts that feed the audio output returned to normal. hug guys | Working now and move on to the next cucumber. | altair pereira pereira |
| LG | CP-14J50 MC83A | Turns on but not the image | Capacitor da power supply c816 220uf 400v | Replace c816 220μF 400v c814 160v 100μF c829 160v 100μF | Eudes Viana |
| LG | CM4450 | On the radio it rings and cuts out immediately and the amplifier power supply goes up to 55v and drops. cutting out the sound | Open 20v zener diode 932 | Just replace it and that's it. God bless you all. | Clebson Vale |
| LG | 14SB1RB | Tv turns on stadbay and goes off without any voltage on the secondary, tv inoperative | It was the photocoupler, it killed the 5 volts | Replace even after measuring well | Eletrônica Melo-Boa Viagem -Ceará |
| LG | 32LD460 | 8 volt voltage low on c659 | Altered 510k smd resistor r609 measuring 391k was replaced after a major analysis on the main board the voltage on the c659 started with 6 volts and dropped to 4.71 volts causing image failures. | marco.32 | |
| LG | RP20CB20A SC-023A | When plugged in, the LED turns on and off, secondary power supplys arrive and drop to 0v | C826 - 470uf/16v, c408 - 2,2uf/160v | I replaced the capacitors, solved it | CTEletronica -Caruaru -PE |
| LG | 29FS4 CW62C | Burning strw6556a, relay knocking, led goes out. | R 801 of 36k changed with 70k | R of 5 cores la, az, pr, vm e marr. prune by the,az,the. | GDP2 |