Lg Repair Tips
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Results: 4957
Results: 4957
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| LG |
42LC4R
|
TV doesn't turn on | TV without 5v power supply - open 2r2 metal film resistor (r508) at the power supply. It is located between the 2 large capacitors of the primary power supply. If after changing the resistor the power supply is "buzzing", that is, making a noise in the 5v power supply transformer, replace the 3v6 zener (zd501) which becomes shorted. I hope I helped. | It's also good to replace the c210 (1500mf/35v) that replaces. | Gerson Digitecnica |
| LG |
21FU1RL
|
Doesn't start. LED flashes and comes on again. +b normal on standby. | Bad 2200uf x 25v capacitor c311. In my case it was measuring as good. change without measuring. | Carlão | |
| LG |
CM4330
|
Works for a few minutes, without sound and goes into s-protection | Fotoaclopador | Replace of the same | RAFAEL |
| LG |
LG42LW5700
|
Turning off after 30 minutes and back light flashing. | Main bridge voltage 250v and back light 52v varying. | Replace rs1505m bridge and 1n5408 diode. resolder jumps and matte solders. then heat the back light power supply area. | BICHARA |
| LG |
29FS4RLG
|
I'm sound | 330uf 25v electrolytic capacitor c808 swollen | Reginaldo Alves | |
| LG |
29CC2RL
CW62A |
Put it in the socket, turn it on, but the +b has 50v and sometimes it resets this voltage, which has to be at least 120v, making a tic tick on the transformer. | Verificar c840 no pino 4 v-in do ic 810 str-x6556 | I tested it, it was with 18 micro, I replaced the power supply, it went up to 120v, good luck everyone. | Eronaldo (erontec) |
| LG |
LG32LH20R
|
No image | Cabo flat | Cleaning | Fbs eletrônica |
| LG |
21FB32
|
Press power button power supply starts and cuts | Shorted flyback | INTERTEC ELETRONICA | |
| LG |
RAD225B
|
The device performs all functions. but no sound. | Absence of 25 v. on the power supply board. zener 10 v. with small leak. | Replace zener (zd904) and go for the hug. | Katutto |
| LG |
21FJ6RB-LD
|
When plugging it into the socket the LED would light up when activating the control or keyboard it would go off and go out | Q-16 protection transistor | Just remove it and go for real | ELETRÔNICA CAVALCANTE MARTINÓPOLE-CE |
| LG |
20CD2R
|
Image stretched at the top, and closing at the bottom | R305 open | Replace r305 -12k | CLAUDIO TECNICO - SURUBIM - PE |
| LG |
42LK450
|
Red video, video in parts of the screen (symptom of damaged screen) | Cabo lvds | Cable replace | Diego Boeira |
| LG |
21FU6TL
|
Arm and disarm lights up on stand by, but when you press the keys or control the LED goes off and on, it does not oscillate | Damaged q801 | Replaced and solved the problem | Antonio Carlos (Eletrônica Renascer)Boa Vista do Gurupi-MA |
| LG |
CM8440
|
I'm sound | Tsound is no power supply for the +56 and -56 sound output | 393jx1250v capacitor connected to the main transformer, I put a 33nf x 1000v one and ran to the hug | VICTORINO |
| LG |
CM8440
|
I'm sound | Tsound is no voltage at output +56 and -56 | VICTORINO | |
| LG |
CM8440
|
I'm sound | Capacitor 393jx1250 connected to the open main transformer | VICTORINO | |
| LG |
32LK330
|
Turns on red LED standby. Press the button to turn it on, the LED turns blue, without video and audio, a few seconds later it turns red, flashing. | Check the power supply f501, open. in my case it opened because q707 was shorted. | Replace q707, f501. I tried using gold fet, it didn't work, it only works with the original (k3868) | arock |
| LG |
32LE5500
|
Does not turn on, without 12v voltage at the power supply | Open l9103 coil | Luis Sparapan | |
| LG |
21FU4RL
|
When I plugged it into the socket the LED came on, when I pressed stand by the LED turned off | Circuit burnout | Replace saida vertical ic 301 la78141 | Reprasom sao benedito ce |
| LG |
32FS4RNP
|
Turns off in a few minutes and has a lot of horizontal space | Replace the 150 nf x 400v polyester capacitor c429 | IRMAO |