Lg Repair Tips
Search: lg
Results: 4959
Results: 4959
Make | Model | Symptom | Problem | Solution | By |
---|---|---|---|---|---|
LG |
55LV3500
|
Image forms slowly, takes time to appear and disappear | T-com board defect | Lack of voltage vgh of 27v r273 of 300r open makes the voltage set up | Marcos infotron-ltda |
LG |
29LN300B-PC
|
Standby LED flashes and the TV doesn't work | Q1002 (smk630) feet broken near l1001 and l1002. | Replace for another equal one or for a 7n80 | evandoviana |
LG |
CM4440
|
Turns on normally without sound, then activates protection | Ic931 12v regulator | Replace | Marcondes Ohm eletrônica Jaicós PI |
LG |
W1941ST
|
Monitor turning on and off normal voltages | Power supply opto coupler | Mariano | |
LG |
14FK3RB
|
The LED turns on and off | 405 diode in short near the AV inputs 1n4148 | Just replace and run for the hug | Eletrônica Power |
LG |
14FK3RB
|
The LED turns on and off | Diode 407 1n4148 shorted near flyback | Eletrônica Power | |
LG |
DH4130S
|
Turning off after a few seconds | Ic904, sn431. check components in that line! | Eletrônica Cecé, Brumadinho mg | |
LG |
42LV345C 42LV3500 42LV3700 32LV3500
LC420EUN ABDV3 |
No image, just white horizontal bands. When disconnecting one side of the t-con flat, that half of the screen turns white. the same happens on the other side. | It makes you think it's a screen defect but tsound was no oxidation on the flats and no heating of the screen flats. | The defect is in the t-con. the ic boils! replace and run for the hug! | PL ELETRÔNICA |
LG |
E2360V
|
Turns on, all functions work, but when inputting a video signal, tsound is a black screen (no image) | Flash rom data corrupt (u402) | Rewrite the flash memory and it works normally again. | PRO PC ELETRÔNICA E INFORMÁTICA |
LG |
42LG60
|
Blue image | Change capacitors on the main board. In this model, the capacitors end up drying out over time. | Rmseletronica | |
LG |
RP20CC25
|
Activates the av, but it doesn't come in. | Dido zener zd 505, shv em tsurto | José delta line | |
LG |
21FJ6RB
MC-059A |
Turns on with the screen almost off and a reduced frame | Low secondary power supply and 180v from pin 2 of the flyback giving 82v | 4k7 resistor r844 replaced to 6k1 Just replace it and run for the hug! | JOCIMÁRIO |
LG |
32LC4R
|
When turning on, the audio on the HDMI input fails and improves after 3 minutes, it is perfect | Capacitor c824 47uf/16v on the main board close to the crystal, replace. | Replacement, can be 100μF. | José Dias |
LG |
32LB550B
|
The logo appears and turns off, it remains in this intermittent process. | Corrupted eprom | Rewrite the eprom | Renan |
LG |
LG 29CC9RL
|
Turns on normally, after a while it turns off for no apparent reason | Photo coupler | Replaced and solved the problem | Eletrônica Renascer |
LG |
CP-15Q90A
|
It takes a while to turn on, when it does turn on it takes a while to accept volume, channel, etc. commands... it doesn't tune channels. | D23 change without measuring. | jr_TEC | |
LG |
CM9740
|
Turns on normally, but the radio, CD, USB doesn't work and tsound's no sound coming out of the output, it just makes the speakers click. | Dsp in short ic501- mlc3700a I replaced it, it worked, usb, radio cd, but no audio comes out, I checked the circuit board near the dsp ps9860 heating up a lot, I decided to replace it for the new one, solved, sound comes out at the outputs | Defect resolved | Carlos |
LG |
CM9740
|
Turns on normally, but the radio, CD, USB doesn't work and tsound's no sound coming out of the output, it just makes the speakers click. | Dsp in short ic501- mlc3700a I changed it, it worked, usb, radio cd and sound comes out of the outputs | Defect resolved | Andre |
LG |
E1941C
|
It doesn't turn on, the LED doesn't light up. | Corrupted (oxidized) track on the power supply board. This track carries power (key 0) between the main board and the sensor board. | After recovering the trail everything was ok. | George Pontes |
LG |
BH4120
|
Tsound is no sound (audio) in the speakers.. | Lack of power supply pin 7 of ic901 ........ replace q901 .. and pc901 (photoa..) | `º¿º' | Alextecnico |