Lg Repair Tips
Search: lg
Results: 4959
Results: 4959
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| LG |
CL87
|
When turned on, it comes with audio, but with a high-pitched horn sound. | The cause of the defect is the clock oscillation x600 crystal. located next to two capacitors on the left facing away from the device. | Replace of the same. With the device turned on, place your finger on the indicated crystal and it will make a different noise. | JC Eletrônica Cícero |
| LG |
50PQ30TD
|
Hdmi inputs inoperative/image flickering or no signal | Leaks in several metallic smd capacitors around the ddr2 memory ic-300 and ic-301 | Replace c-810 and c-826 (22x16v) / c-834 and c-2102 (47x16v) c-323 (100x16v) and that's it, it's great, only one case had to go into the service menu and rename the hdmi inputs. | ROBUSTO63 |
| LG |
50UN7310
|
Turns on normally, but turns off, turns on but no image, normal sound. | Main screen of the display heating up. put heatsink with thermal paste. measures; This main ci, the one that seems to be working, however, does not give commands to the vcc of the vgl, vgh of the panel. | LEANDRO | |
| LG |
43LJ5500
|
Does not connect wifi | Wifi card supply voltage less than 3.3 volts | Leaky transistor, on the main board next to the connector that comes from the q2300 (za) power supply, lowering the voltage to 2.8. | |
| LG |
32LE5300
|
No sound. TV informs you that the phone is connected. | Ceramic capacitor shorted on the main board c1119 - close to the phone connector on the side of the board. | Just remove the capacitor. | Filipe Furtado |
| LG |
49LJ5500
|
Wifi off / can't find wifi | Update software over lan network | Success to all | marigwr |
| LG |
60PA6550
|
Turning off after a while | Complete resoldering of PCBs y, z and power supply was carried out. The problem was resolved and another one appeared. 1 fixed horizontal line on the screen. | Flat bμFfet cleaner next to the line. not resolved. cleaning of the 3 flats close to the line was carried out and it was resolved. good luck ! | |
| 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 |