Lg Repair Tips

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Results: 4963

Make	Model	Symptom	Problem	Solution	By
LG	42PT250	Stopped, stdby is on, it looks like it's going to turn on but goes back to standby	Q11 and q12 shorted and sometimes q15 and q16 too, after changing them check c721 may be burnt, you can't measure it, just check it if it's perfect, I advise you to remove it and leave it without it		VICTORINO
LG	42LM3400	Slightly negative colors, with three curtains over the image	Leaky capacitor in the t-com and display circuit;	In my case, I replaced the c-124 capacitor on the display ruler	jairoeletrotecnico
LG	32LK330 EAX61124203/2	TV turns on the LED and it blinks, no image, no sound, LCD lamps don't light up	In my case, two MOSFETs K3868 Q707 and Q709 are shorted, opening the fuse F501 15A/250V in the inverter area on the power supply board	Replace the fuse and the two original k3868 mosfet, you have to put the original k3868 mosfet	Ricardo Montes
LG	CM 4350	Dead power supply	Burnt mosfet spa08n80c3	Replace for the same one or the p6nk90zfp... more zd 912, zd902, c914,c905	Junior da Eletrônica Alves V. Grande -MA.
LG	CM 4350	Dead power supply	Burnt mosfet spa08n80c3	Replace for the same one or the p6nk90zfp	Junior da Eletrônica Alves V. Grande -MA.
TV LG	29CC9RL	Vertical - dark screen on the top, open only about 10 cm on the bottom. (below)	Resistor r567 (4k7) open or altered. (also check r566 same value 4k7)	Replace resistor	Severino Silva
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