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 | 21FU1RL CW81A | TV turns on with power supply B+ low 83 volts black bands a little distorted on the sides of the TV TV | Q801 leaking | Replace q801 | ROSIELDO CARVALHO |
| LG | 50PB650B | Doesn't turn on - doesn't have 5v | Replace ic301 strw6051s e zd 303 10v | Replace | molina |
| LG | 32LN536B LA3AA | No image. audio only. | Back light bars with damaged LEDs. | Replacing the LEDs. detail: I lowered the circuit current. I removed the power supply resistors r827 (3r9), r826 (4r3) and replaced r823 (from 3r9 to 4r3) and r825 (from 3r9 to 12r). they were 71.4v, 394ma to 65v, 243ma. I lowered the current a lot because it was feedback. | Eletrônica R-Tec |
| LG | RAD 136 | No sound and cd doesn't work | Shorted 5v line, causing no sound and killing the power supply to the ic301 | Replace c312 (electrolytic short, close to ic 301) | Fofao eletrônica estância |
| LG | 32LD350 | Pci killing power supply voltages | PCI capacitor c459 shorted | I removed it and the TV is ok | Jetro vieira |
| LG | W1942P | Turns on, image appears and turns off (remains on without the screen lighting up) | Burned-out fluorescent lamps side a or b use two lamps on each side. | Just by changing it to another one, it burns out due to the number of hours of use. | Maike Sorriso-MT |
| LG | 42PQ30TD EAX56395204(0) | It calls whenever it wants and sometimes it only calls after several attempts | Two capacitors on the main PCI c866 and c863 | Exchanging them | Airton Filgueira |
| LG | L1750S | Backlight blinks | Low capacitance c101 68uf 400v | Replace | rikadapper |
| LG | MCT705 | Turns on with cricket in the chopper (70v) without load (removed the output) the +b 70 slowly rises to around 60 | Open 10k r916 | EletroFenix | |
| LG | 42LB9RT | When plugging the TV into the socket, a popping sound was heard and the stand-by light turned red, but the screen turned on and the sound didn't work. | Found electrolytic capacitors c202, c206 and c217 (all 2200uf/10v) swollen. the ci u101 (it was blown, without the top "cap"), the mosfet q103 shorted, the zener zd100 burned and the smd resistors r114 (100r), r115 (10r) and r118 (560r) and common resistor r120 (0.33 r/2w) burned. | After replacing all components, the TV started working again. | |
| LG | 32LV536B | No image. audio only. | Defective LED bars. | Replacing the LEDs. detail: I lowered the circuit current as it was the second repair on the same device. On another occasion I noticed the same defect. I removed the power supply resistors r829 (3r9), r828 (4r3) and replaced r825 (from 3r9 to 4r3) and r823 (from 3r9 to 5r6). the measurements went from 40v and 139ma to 37.3.1v and 97ma. | Eletrônica R-Tec |
| LG | 43LJ5550 | LED blinks and doesn't turn on | Shorted smd capacitor underneath wifi board | Hndrsn | |
| LG | 47LW6500 | Turns on and no picture and no sound | Redid processor reflow and capacitor c5412 in short dropping 1.2v_frc | CARLOS STYLO | |
| LG | 50PJ350 | It didn't work, check if tsound was a short and I only found it on the 5 volt line. | Main board, c502 underneath and next to the p500 connector | fabiusmax | |
| LG | 32LH570B | Turns on only turns on the backlight | Ic 500 (mp3378e) burned on the main board. Note; tsound is no 12v that powers the vcon. | After changing the TV ok. | George Pontes |
| LG | 32C460C | Turn on the lights and turn them off leaving only sound | Weak light bulbs | Put a 10k resistor on pin 13 of the bd9270f to ground and replace 39k r301 with a 100k | barbadinha |
| LG | RP14CB25A | No image appears, turning on and with normal sound, but no image. | C814 | Capacitor replace, it was bloated. | Elton |
| LG | DH4220S | Without video on HDMI, only black and white video output (AV) worked | If you can't. reset the device. setup>> video>> 16:9 on the controller press 1397139 enter on the screen that appears press enter again. Turn the device off and on again using the remote control, select the device language and have fun | ||
| LG | LG 22LS4R | Hoarse sound/sometimes it is silent | Replacement of the smd electrolytic capacitors on the main board, you don't need to change them all, only the capacitors from half of the board upwards, tsound are approximately 15 capacitors | eletronica junior reginaldo moronte | |
| LG | 21FX5RL MC59A | With image without sound | Service mode in the and p2real st option | eletronica do gilvan |