Lg Repair Tips
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Results: 4963
Results: 4963
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| LG |
28MT49S-PS
|
No image, LEDs on, with sound. (It may happen that the LEDs are off too). without the 12v that powers the screen. | After checking that the board was not sending 12v to the screen, I measured the short with the multimeter and found some capacitors that work with the LED driver IC. I soon identified the burnt IC. | Replace IC601 (MP3378R). | World TV - Sorocaba |
| LG |
50PB650B
EAX65297201(2.1) |
TV turns on with audio and no image | Damaged ysus board | Q554E replace and run for the hug | JORGE ASSISTÊNCIA TÉCNICA COTIA SP |
| LG |
42LC4R
EAX37617801 |
Backlight does not come on, with sound without image | Replace ci u701 | When measuring ci pin 4 and 5 it was shorting | Maike Eletronica Sorriso |
| LG |
42LD
|
Power changes from red to blue but does not turn on, | Reflow "on a whim" | Rodrigo cofferi | |
| LG |
CM9730
|
Exits don't work. without power supply +40 and -40 . | 4 | Check c934 27n1000v exhausted ; After the replacement, the power supply to the outputs is restored. | Jocimar Pedro |
| LG |
RP20CC25
|
Activates the AV, but does not produce an image. | Altered 4.7k r512 resistor | Just replace it with another one with good value | Seën store |
| LG |
42PN4600
|
Does not turn on, red LED flashes | Problem with the power supply, change c364, c367, c371, r616, r615 open and diode 304 shorted | Gbrito | |
| LG |
50PQ30R
|
No image | Main board defect | Do the ext-auto-gen test on the 50g2a_ctrl board | Gbrito |
| LG |
50PQ30R
|
Turns on part of the screen | Defect at plate and-up | Replace resistors that opened, replacement of transistors that are on the 3 heat sinks, which may vary, which are k3667, rf 2001 resistor r728 of 2.2Ω +-5% of 2 watts | Gbrito |
| LG |
24MT49S
|
Does not connect wifi | Remove the Wi-Fi card and clean connectors and the bottom of the card with contact cleaner. | Persio(TVCompany) | |
| LG |
L226WTQ
|
White screen with no image | Transistors q901/q909 kta1273 open | Replace both, you can use 2sa1273/2sb892 | jheliocavalcanti |
| LG |
32LK331C
|
Restarting after a few minutes on | Replace electrolytic capacitor c218 on the 680uf/35volts power supply board, completely exhausted. I put a 1000uf/50v capacitor in its place. defect resolved. | wanderzip | |
| LG |
42LB9RTA
|
Does not turn on LED changes from red to green but does not turn on | Shorted inverter board! repair or replace inverter board | Paulo Borges eletro | |
| LG |
14FK3RB
|
LED lights up and then goes into protection | Shorted vertical output | Electronics bastos elísio medrado ba | Eletrônica Bastos |
| LG |
42LV3500
|
Does not turn on, power supply inoperative | Fuse f101 open and diodes d501, d502, d503 and d504 shorted. | Replace defective components | NiloTech |
| LG |
43LH5150
|
The screen LEDs blink and then go off and tsound is sound | Each led bar has an smd diode just remove them | Measuring with the LED tester all the bars are the same but it doesn't work | Ariel Santos |
| LG |
26LG30R
|
All white image, with sound | Ci 4925b (q1101) defective (near mainboard power connector) | Ci replace | FILIPE FURTADO |
| LG |
32LG64UR
|
Turns on makes a noise from the speakers and restarts | D1103 failing, running diode scale test shows no failures. | Just replace and stick the cat | WVMP |
| LG |
32LJ600B
LJ7 |
The screen LEDs blink and the TV doesn't work | 30 volt inverter power supply failure | Touch main board | SANTOMEL |
| LG |
32LJ500B
|
Dead | C9118 shorted and r9901 open | Replace c9118 (101k/1kv) and r9901(0.1r) | Multimarcas/Acarí |