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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