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 | 50PB650B | After repairing the board, the TV turns on and the screen turns on and turns off. | Replace or 20 volt zener diode zd 552 | Eletrônica Dois Irmãos | |
| LG | 50PB650B | The TV turns on, it seems like the screen is going to light up, but then it turns off | Replace or zene diode from plate and z0552 of 20 v | Eletrônica Dois irmão | |
| LG | RP-14CB20A SC-023A | Does not turn on when hot q402 horizontal output transistor | I removed the protection transistor q16, it turned on, I saw the defect was only the wide caps, the c412 and the c414 | Just replace without measuring and run for the hug | Eletrônica Pará |
| LG | 50PN4500 | No image, audio only | Short ceramic capacitor c205 | Part located on the ysus board near the t201 | Multinformatica assistência |
| LG | 42PJ350 | League without image | Measuring voltages of +15vf +5vf were high and oscillating, the cause was the breakage of the copper wire in the t501 transformer | Resoldering the wire or changing the t501 transformer | Kel Araujo Assistência Técnica M6 |
| LG | 42LA6200 | Horizontal and flickering lines in the middle of the screen, (side by side), the procedure for removing one flat at a time on this TV, shows noise on both sides, looking like a display defect | I put tape to isolate the first 10 lines, left to right, flat right, it was perfect. | ToniTec | |
| LG | 42LG30R | Green or whitish image | Corrupted software ic802 | Rewrite software from ic802 memory atmel 24c64 1.8v | GABSENS |
| LG | 60PB6500 | When I turned it on, it would make the screen smudge for 1 second and erase the image | Resistor 2r2 (r559)+2 transistors (q552,q553), note: I put k3667 in its place, it worked 100% | reginaldo moronte,eletronica junior caldas novas | |
| LG | 47LB6500 | It turns off by itself and restarts randomly. It turns on and off, sometimes the standbay flashes, other times it turns on and stays on for two or three days without showing the defect. | Smd resistor position 126 on the primary power supply board, 100k changed. | Replace resistor r126 100k, tip from friend naldo lima (disclosed on this same site in model 47lb5800) | MIGUELTV |
| LG | 42PG20R | Volume bar stuck at zero with no audio | Rewrite ic803 | techmix eletronica | |
| LG | 42LS4600 | Turns on normally then turns off the backlight, only the audio remains, LED 701 flashes 4 times indicating protection | Defect in ceramic capacitor c26, tsound are 4 capacitors in parallel, one will be shorted | I took it off and left it with just 3, it worked normally | MICROTEC |
| LG | 32LH20R 26LH20R 42LH20R | Shrill or no sound | C612 | Eletr Cunha Pedrosa | |
| LG | 42CS460 | It doesn't turn on, it doesn't have 3.3v | Zd504 shorted | Replace running for the hug | Marinho |
| LG | RN9 EAX69094501 VER: 1.6 | The sound arrived inoperative (it doesn't turn on) and when it turns on after a while it freezes and doesn't turn on anymore. everything is ok, | The problem was solved by resoldering the crystal next to the bga x500 and resoldering the x501, if the problem continues, please replace them all | MC BOSCA | |
| LG | M2350D LM230WF5 | Backlight off, with sound and no image | C.i. tps65231, position ic807 burning, reason: 10Ω r121 changed to 1Ω (on the LED control board). replace both and see if the LEDs remain working with a tester. | SOS Televisores | |
| LG | 42LM5800 | It turns on normally, but after a while, the backlight turns off, but only the audio remains. | Short in one of the bus LEDs. When opening the TV tsound is a red LED on the power supply flashing 4x indicating that something wrong is occurring. | Replace the bus. | JC Eletrônica Cícero |
| LG | 42PQ30R | Tsound is no 5v from standby. | Resistors | Clean the glue under them (r108,r514...) | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| LG | 42CS460 32CS460 | Dead | R519 1m open | AdrianChapadaodoCéu | |
| LG | 32LG60UR | It turns on normally, after a few seconds it makes a hissing noise from the speaker and turns off with a red LED. After that, it locks and just unplug it and plug it in for it to turn back on. | In my case, all the power supply capacitors were bad, and these following capacitors on the main board: c666, c612, c1155, c406, c833, c879, c875, c1118, c1128, c1110, c710, c711, c1129, | Replace all the capacitors above. After a day of work almost with an oscilloscope and thermal camera I managed to solve | Eletronica SV |
| LG | 42PG20R | Hdmi does not appear in the input list | Https://youtu.be/id7jw7lth1u, | Simultaneously press menu on the control and on the TV until you enter service mode, in the second option, tool option2, go to hdmi and put 2, give ok and exit | Rodrigo cofferi |