Lg Repair Tips
Search: lg
Results: 4929
Results: 4929
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| LG |
42PJ350
|
Do not turn on, relay arming and disarming right after calling. | Cold weld in the main power supply. | Resonold in the pins of all transformers, mosfets and power resistors. To avoid future failure points, also resolve components in which they appear to have little welding. | Moises |
| LG |
50PB560B
|
pictureless | Defective Controlling Plate | Replace Controlling Plate | Eletronica NDN |
| LG |
50PB560B
|
pictureless | YSUS in short | replace Q552, Q554 both SMK0460, R561 - 10 Ohms, C672 - 102K 1KV, C671 - 471K 1KV, D556 ES1G, IC 551 - P155E, D552 - CDZ55C56, comes only 56 in the zener 56V 500MA encapsulation | Eletronica NDN |
| LG |
42LG30R
|
Greenish and sometimes flashing picture | Dirt on the lvds cable | LVDS Cable Cleaning (which goes from the main to TCON) | Wsmartcell |
| LG |
49UB8500
lj41v |
No audio, no picture, no backlight | Cold weld in IC100 | with a lot of flow make the IC100 reflow and add thermal paste and a thermal rubber to improve callus dissipation | Marcos Paulo Infotron-ltda |
| LG |
22MA33
|
don't turn on | Measure IC808 has to be 2.5V, if you don't have to measure Q 804 you have to release 3v3, in my case it was him, I made the jumper and the TV called, I replaced it | Mirage Eletrônica | |
| TV LG |
49UJ6300
|
decrease current in LED bars | reduce current in LED bars after the replace | replace the R801 to 2.2R 1/2W | Digitronica |
| LG |
CJ87
Eax68563602 |
Inoperative power supply, without +5v | ZD905 in short | Place 13v Zener diode | Ivan Silva |
| LG |
32LS3400
|
no picture, blacklight comes on looking like a display symptom | no 12v on the display connector, smd transistor Q409 open | replace of the same removed from another scrap board | LEANDRO VOSS |
| LG |
43UP7500PSF
|
It appears to be a screen defect | C 2405 shorted. | Also check C 2505 and C 2605 | Mariano |
| LG |
42LK450
|
Does not tune channels | 1.2 volts missing in the seletronic switch ci 3701 under the ap2132 board | Measure voltage on the electrolyte capacitor c3705 if it does not have 1.2 v, replace the ci 3701 under the board 8 terminals | Cabeça |
| LG |
55UJ6300
eax67189101(1.4) |
bluish led | replace LEDs and reducing LED current | remove the 1.4r r801 and leave it without (this board has two 1.4r resistors and only remove one of the resistors (r8010 or 815) leaving just one! | orlando lott |
| LG |
32LH570B
|
power supply shorted | c5609 smd 10x25 or ci 2301 ahrg319 | replaced it... Good luck | Jhone Eletronica |
| MINI HIFI SYSTEM LG |
CM4350
|
Turn on without audio and then PROTECT | Yessaa 1/Kia Hazr 12 | Edivaldo Carvalho da Silva | |
| LG |
55UJ6300
eax67146203(1.1) |
stuck in standby | c1603 smd raw and L1601 open | replace the same ones I removed from scrap | orlando lott |
| LG |
CM4330
|
Turns on after 10 seconds | Shorted transistor q953 | St3202y. I put a bc639 it worked perfect | Dinetronic. |
| TV LG |
42LE5500
eax61750103-0 |
Whistle switch doesn't light up black lite | replace transistor q8002 p1 near the power supply connector at the bottom | just replace transistor and hug | miguel estrela dalva |
| LG |
21FU4RL
MC-059C |
The LED would light up, generate a high and turn off | After replacing several bad components, I tested the entire power supply, and finally I found transistor Q103 completely shorted, the transistor that feeds the varicap's 30volt line, I removed it, the TV remained the same | replaces the ic501, the TV was good thank GOD ----12/31/2024-----GOOD LUCK EVERYONE | Otacilio eletrônica G.G |
| LG |
28MT49VF-PZ
|
Turns on stand by LED but doesn't do anything else, doesn't even blink | Ic404 ams1117 adj | Rdxk | |
| LG |
32LS3400
EAX6456502 |
FLASHING STANDBY | FOTOACOPLADOR | power supply BOARD PHOTOCOUPLER IC502 AND IC503 BOTH EL817 | RIC TEC 1193096-7971 |