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 | 32LH35FD | Bad audio thick voice or slow effect | Non-crystal tail next to coil l206 | Remove the glue with slight heating to avoid removing the resistors that are underneath the glue which replaces the resistance, place a 1r resistor between the coil and the crystal swap x201 | marco.32 |
| LG | CM4440 | S protection | Thermal paste when hardening and crumbling causes a short in the power circuit output | Cleaning with isopropyl alcohol and nylon brush | jose christino |
| LG | 50PA4500 | Red image | Changing the 10uf power supply capacitors to 50v | Vanderson | |
| LG | CM8330 | Power flashes, flashing everything | Replace diode d967 | Marcio eletronica sao carlos | |
| LG | 42LB9RTA | LED changes red to green, has no image, no lighting and doesn't work. | R108 1m | Replace | Hndrsn |
| LG | 42LB9RTA | LED changes red to green, no image, no lighting and no 12v and 24v voltage, pfc doesn't work. | R 614 or 613 open from 820k | Replace | Hndrsn |
| LG | 32LB9RTA | No audio, sometimes the audio came back, said the customer | Defect in the power supply, 3.4 turns was 1 volt, I made an adaptation of a regulator IC taken from a 3.3v scrap board, in my case I put a 1084 33, It's easy, pin 1 is ground, pin 2 It's the 3.3v output and pin 3 on the right It's the input, you can solder wires to the regulator and connect pin 1 to ground, pin 3 in the middle of the d 209 (6volt rectifier diode) and pin 2 (in the middle of the regulator) on the 3.4v output of the p203 connector that goes to the main board, note: you do not need to disconnect the original regulator circuit from the power supply board, leave it as it is | reginaldo moronte,eletronica junior caldas novas | |
| LG | 21FU6TL | Turns on and returns to standby if you remove the q16 you notice it vertically closed | R301 18k | Carlinhos 100 | |
| LG | 42LK450 | Works and stops | Leaky fet q709 is q708 just change | Bruno nicacio | |
| LG | 50 LB5600 | After being on for a while, it turns off and flashes quickly and does not turn on again. power supply keeps pulsing | Photo coupler (ic102) | Changing the photo coupler (ic102) | RS ELETRONICA |
| LG | 42LW4500 | TV does not turn on or the stand-by LED lights up. | Broken track in the stand-by power supply circuit after d504. | wandersonop | |
| LG | 50PM4700 | Does not turn on, relay hits; when disconnecting the y-sus it releases voltages from the power supply | Plate and-sus with various burnt igbts. 2x 30f126, 2x 30j127, 1x sf20a600h, 1x k8a60da, 1 uf4004 diode | Pay close attention under the plate to the diode track, in my case the tracks were broken in two parts in the diode region. I hadn't seen it the first time and I lost all the work. After reviewing it again, it became a champion! | World TV |
| LG | 42LS3400 | Intermittently turning off and off | Touch painel | Replace without testing good luck...! | Jhone eletronica |
| LG | IPS224VA | It started taking a few minutes to turn on until it no longer turned on, before opening the equipment I decided to do a load test on the power supply (19v / 1.3a), this power supply is external, I fed a resistive load whose consumption is 0.5a and the voltage dropped from 19 to 9.7 volts. | I carefully opened the power supply and discovered the 19 volt filter capacitor bloated (1000uf/ 25v), I just had to change it and everything went back to normal. | Altevir Lima - Anananindeua - PA | |
| LG | 32LN5400 | Disconnecting and the line alone | Cold solder on the d801 pins, just resolder and be happy. | Assistec LG | |
| LG | 49UH6509 | Shaking image | Screen defect | Isolate screen flex tracks | Andrei 05199141340 |
| LG | 32LH70YD | TV turns on normally, has audio, shows video signal but doesn't connect HDMI and in avi tsound is audio but no video | The bga processor was resoldered. | TV started working normally again. | Adriano Miranda |
| LG | 32LN549C | Back light does not light up, and the defect is not in the LED bars | It only goes 53v to the LED bars, | R820 open | EDUARDO TOMAS SILVA |
| LG | 21FJ8RL CW18B | Vertically (with a deformed image and a line in the middle of the screen | R301 18k | 3R | |
| LG | 42LN5460 | LEDs on and no image | Ci smd next to the power supply rt8289 | ARLAN BRITO |