Lg Repair Tips
Search: lg
Results: 4898
Results: 4898
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| LG |
42PW350
|
Turns on and off and returns to stand by | 2 capacitors of 3300 mf/10v on the 5 volt line practically exhausted. the impression was that tsound was a defect on the y sus board. when it was isolated from the z sus board the TV turned on normally. paca y sus tsound was no short. what was left was the power supply board. the relay tripped because the 5 volt power supply was not supported. | Changing the 3300 mf/10v capacitors and checking the power supply capacitors. tsound were several with low capacitance and high esr. after that the tv started working normally again | jose carlos |
| LG |
42LD460
|
Turns on, hangs on the logo and gets the screen all "scrambled". | Check the "air" resistor banks that are close to the bga....all 10r resistors...good luck.. | <small> |
|
| LG |
50PQ30R
|
It doesn't work, plugs it in, you hear the relay arming and tsound's no image. | After checking the ysus board, I found transistors q22, q23 shorted and fuse fs 202 open. | Replace damaged components, general board check. | arock |
| LG |
32LN LGP32-13PL1
FONTE LGP32-13PL1 |
Burning q101. | After replacing all burned components due to c102 being shorted, the new MOSFET burned again. check r106 (1.2k), if it is open the mosfet shorts out as soon as the power supply is energized. | electronics supply parts - Gramado/RS | |
| LG |
50PT250
|
Negative image, not black | 0.22r resistor r440 on open ysus board | Resoldering of all boards / resistor replacement | Tulio UBA |
| LG |
42LF20FR
LP91A |
I'm sound | C1003 with high esr | Replace c1003 | ROBERVA1 |
| LG |
43UJ6565
|
Bluish image | Due to heating, the LEDs lose their filter to emit white light, requiring replacement. | Replacing all led bars | Rafael |
| LG |
14FK3RB
|
Normal characters, image scrolling and folding | R512 from 4k7 close to the computer | Replace without measuring in the test, it works fine | Marcondes Ohm Eletrônica Jaicós PI |
| LG |
29FU1RS
CW62C |
Power supply oscillates and turns off, tsound is no +b | Altered resistor r801 | Replace resistor | Eudes Viana |
| LG |
14FK3RB
|
Normal characters, image scrolling and folding | R512 from 4k7 close to the computer | Replace without measuring in the test, it works fine | Marcondes Ohm Eletrônica Jaicós PI |
| LG |
SOM CJ65
EAX67284001 |
Turns on for a few seconds and turns off | Replace o resistor r952 | 3.2k precision resistor for a 3.3k | renildo |
| LG |
42PJ350
|
Does not tune channels. | R642 or r643 open | Replace, the value is 22r. | EDTV Miriambi |
| LG |
21FJ6RB
MC-059A |
Vertical beam at the top is at the bottom does not open the entire screen with a white stripe at the bottom | R313 43k changed to 80k | I put a 43k comfort scheme beauty of creuza tv was good again | Rei da eletrônicos |
| LG |
32LV3700
|
The backlight turns on, but the image remains black. | Remove the chip heatsink from the main board and heat it with the thermal blower for 3 minutes using circular movements. | Alison Silva | |
| LG |
32LD420
|
Blocking all channels | Defective varicap, just replace it and it will work again | ||
| LG |
14SB1RB
MC059D |
Image shifted to the right, without osd and bar on the left side | 9.1v zd501 zener diode shorted connected to the fbp pin of the ci 501 | After changing the TV ok. | George Pontes |
| LG |
W1942S
|
Doesn't start | Power supply capacitors c212 and c205 swollen. | Replace the capacitors. | Thiago Ladeira |
| LG |
RP21FE85G
MC-059A |
Tv - works however with colored shadows | 180v line -c540 | Replace c540 -4.7μF x250v | EMERSON RIBEIRO |
| LG |
55UJ7500
|
Flickering screen | The defect and the display | What to do is to circumvent this defect by isolating some defective lines with insulating tape on the second flat of the display looking behind the TV, isolating from right to left pins 5,6,7,8,9,10,11 then just running to the hug | charlotniu |
| LG |
32LN549C 32LN5400
|
The power supply works with a strong noise as if it were a flyback with the 12v voltage changed to 14.5 on the secondary which are 3.5,12,24v | Resistor smd r235.56k aberto e r239 10k aberto | Replace the respective resistors and the voltage returns to normal. unfortunately the voltage replace caused by the power supply burned the board...I had to make the repair. | ALVES.TEC ELETRONICA ESCADA PERNAMBUCO |