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 | 21FU1LR CW81A | Replace | R 844 of 4.7k | Replace | Mauro Mascarenha Tel. (88) 981422821 |
| LG | 60UM | Sometimes it cuts the image and only audio remains! but always with the LEDs on! on the t-com board, if the FET300 IC heats up, it releases 17v and the image comes back, sometimes shaking the right side, change the t-com | Sometimes with an image, sometimes not! but always with the LEDs on! changing the t-com | Rodrigo cofferi | |
| LG | 47LA6200 | Blacklight comes on but no characters - no image - 12 volts were not enough on the tcon | Capacitor on main board - c2435 shorted killing the 12 volt line. | George Luís | |
| LG | MCD212 | League without sound | After changing the output and some damaged resistors, the 34v voltage from the power supply was not appearing, until I replaced the ic902 with a c1845 transistor and everything was beautiful. | Eletronicazetec | |
| LG | 21FU4RL | Does not turn on LED turns on and off does not generate high | R840 shorted | Just replace and run for the hug | Ammalho de Sousa Silva Filho |
| LG | CM4350 | It gives sound for 1s and goes into protection mode. | Pc903 | Changing the photo coupler pc903 | Ogeid |
| LG | CM4340 | Inoperative, no secondary voltages. | Zd901 (zj27d) diodo zener 27 volts 500 mw; zd902 (zdgj6.2d) diodo zener 6,2 volts 500 mw; pc901 (pc817); ic901 (ice3br4765jz) | Eletrônica Barbato | |
| LG | CM5660 SOM LG | Stereo, turns on but after a few seconds it displays the d-protect message without audio. | Zener diode with momentenclature on the zd912 board. 20v short beeping on both sides. You have to remove one side to test correctly. | Replace 20v zener diode. zd912. Sometimes the MOSFET goes with it too. if you replace it and don't decide to replace it. | JC Eletrônica Cícero |
| LG | CJ87 | Without the standby power supply working. | Tip by severe mailson, zd902 diode. | Replace the same. | |
| LG | 42CS460 | It doesn't turn on, the power supply is ok, but when it connects to the main one, it kills the power supply voltages. | Short on 24 volt line | C523 shorted, close to the audio ic on the main. | LABOTRON |
| LG | 60UM7270PSA | Blue image with normal characters | Defective LEDs | Changing the LED bars and reducing the LED current, removing r801 and r809 | George Luís |
| LG | 60UM7270PSA | Blue image with normal characters | Defective LEDs | Changing the LED bars and reducing the LED current, removing r801 and r809 | George Luís |
| LG | 32LB3RS 0000 | Stand-by ok mas ñ liga | C204 c205 | Replace without testing! good luck! | Jhone eletronica |
| LG | CM9530 | Cutting audio and turning off | Irs changed | Check all irs if it is generating pwm replace the defective ones along with the diodes around them | Geovane |
| LG | RP 14CB MC-059A | Vertical closed | Cold solder on ic803 7805. | Solve ic803 | MARCONES DE ARARIPINA-PE |
| LG | OK55 | Doesn't start | Short in the power supply in the zd902 diode, it is close to the photo coupler pc901 | Mateus Borges | |
| LG | LGP32-13PL1 | Does not turn on, fuse blown, short q101 | After q101 replaced, burned ic101, c102, q101, r113, fuse. has been replaced/tested ic101, c102,q101, r113, r106. Then I had 3.3vlt, but the TV wouldn't turn on and a buzzing sound was heard when pressing the power button and the 3.3vlt dropped to 1.x vlt. components d103, f100, r104, r105, r106, r107, r10, r109, r110, r111, r112 were replaced/confirmed and it worked flawlessly. Attention, if r106 is open, q101 burns immediately after energizing the power supply. the r112 (it was open), was the reason why the power supply made the buzzing sound | gccp | |
| LG | (42),(32)(26)LH20 42LH20R | No audio | Capacitor 10-16v c866 e c809 . | Japajpeg | |
| LG | 32LH35FD | Locking image along with the functions | Schism | jr_TEC | |
| LG | 50PJ350 | Turns off by itself | Cause, resolution |