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 | RD136 | I'm sound | When checking, tsound was no current in the sound output, a scan was carried out at the power supply and the zd905 zener diode was detected in short | Just replace the component. | Eletrônica Morais |
| LG | 32LS3400 | It doesn't turn on, stand by blinks off and tsound is no 24 and 12v. | Ci 101 sc1s311 and r106 of 47r open in power supply. reason for burning c 102 of 470pf (471) blown. | After changing the TV ok. | George Pontes |
| LG | 50PB560B | TV works normally, only has sound and no image | Shorted capacitor on the ysus board (c205) near the transformer | Replace for the same | Eletrônica Bastos |
| LG | 42LH35FD | Without image, sometimes with slow image and sound (thick voice, out of frequency) then everything freezes. | The xtal x201 glue damages the components around it, harming the oscillator. | Replace the replaced components l206, x201, c298, c299, r205, r208, c269 and r211. I hope I helped! | Julian C Braga |
| LG | 32LD840 | TV restarting continuously, sometimes it works for a few days | 3.3 volt power supply goes down, I go back to 3 volts | Replace without measuring c804,805 and 815 | NARDINHO ALFENAS |
| LG | 32CS460 | Turns off by itself | Turns off by itself | Eustáquio | |
| LG | 42LP560M 60LN549E 55LN549E 55LN541C 47LN549E 47LN541C 42LN549E 42LN541C 39LN549E 32LP560M 32LN549E 32LN541C | TV restarts, works fine for a while, turns off and turns on again | The problem arises due to problems connecting the voltage between the power supply and the MB or the TV detects a failure at 3.5v_st. | The problem is normally in the connection cable between the power supply and the board, check the connectors, fix the cable with "glue" or another means. | Constantino Palha |
| LG | 32LF57 49LF51 49LH57 49UF64 49UH60 | Faded blue image | This symptom appears due to the loss of silicone in the LEDs | Replace the LEDs/connection strips | Constantino Palha |
| LG | EAX55729302 | Standby LED blinking, no image | Remover c848 (mlcc) capacitor (mb) | Constantino Palha | |
| LG | EAX55729301 | Standby LED blinking, no image | Remover c848 (mlcc) capacitor (mb) | Constantino Palha | |
| LG | 32LH30-UA EAX56738102 | Standby LED blinking, no image | Remover c755 (mlcc) capacitor (mb) | Constantino Palha | |
| LG | CM4420 | Tsound is no sound, and over time it just turns off | 12 volt power supply is missing | Replace without measuring the diode d921 and that's it, I hope I helped | Célio |
| LG | CP21Q22 MC997A | When plugging it into the socket, the LED turns on, it has b+ ok, it drops b+ and des. The LED obeys control but does not have 15 kz | Ic 02 sda com 4.5v scl com 4.5v ic 501 pin 12 scl2 com 0.25v sincronismo | Interrupted trail, redo with thread. | GDP2 |
| LG | 21FJ6RB | Vertical deflection with 40% opening with trapezoidal effect on the image showing convergence lines | Vertical reflection coil broken by oxidation measuring 21Ω, normal would be 11.9 | I removed the coil locks and soldered the broken wires, the coil resistance normalized to 11.9Ω. You can also replace it with another of the same model | Sandrine Rogério monteiro Sanches |
| LG | 42LD650 | Red LED flashes slowly but does not turn on, and tsound is a buzzing sound on the main board | Cold solder on ci ic8001 and components below c8029, r8043 | Heat area with flow to 350º | T.CUNHA |
| LG | 19LV2500 | Flashes standby and does not start, does not light up and turns off | Bga principal | After the reflow it worked normally. Cheap equipment, you can't charge a lot | trovarelli bauru |
| LG | 21 CW81B | Vertical folding at the top | Resistor r301 =18k was changed to 25k. | Replace of the same. | Hiper eletrônica service (Maraial-PE) |
| LG | 50PB650B | Tsound is no image | SMD diodes next year t201 trafo t201 na plate y-sus with cold solder | Resolder diodes and the transformer itself | Eletronicaaeb |
| LG | 32LD420 | Sound disappears and makes noises when it heats up | Resolder the sound output and memories and bga processor with a thermal blower | Edinho | |
| LG | 32PC5RV LG | The green LED flashes and goes back to standby (red LED on), sometimes it turns on normally | C 904 22 uf /50 volts | Replace without measuring, because the esr is high, even though the capacitance is normal | manoel bonfim |