Lg Repair Tips

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Results: 4876

Make	Model	Symptom	Problem	Solution	By
LG	32LB9RTA	Weak standby LED and 5v power supply with 2v or less	Changing the electrolytic capacitor c506 10x50 in the power supply primary		Resistronic resende
LG	42LY340C	No image. audio only.	LEDs short and open.	Replace short and open LEDs (3 in total). and I lowered the circuit current as it was the second repair on the same device. I removed the inverter resistors r817 and r818 (both 4r3) and added another one in series of 4r3 to the existing r816. getting 4r3 + 4r3 in r816. the measurements went from 142.4v and 91ma to 133.7v and 60ma.	Eletrônica R-Tec
LG	42PQ30R	After running for a while, it turns off and keeps restarting and hitting the relay. When doing the auto gen it was found that the main board was bad.	16v 10uf capacitor c613 which is next to the processor in the main	Always do the auto gen to rule out any effect on the main PCI or other cards.	Carlos Araujo 82993677063
LG	52LG50FD	Hdmi no signal or invalid format	Bad solder/reflow needed	Plate placed in an oven at 190 degrees for 10 minutes, it started working again.	Cassio Siquara
LG	32LF550B LB55H	No image. audio only.	All back light LEDs shorted. After the replace, they all shorted out again. That's why I noticed the inverter with the q803 shorted out (stay tuned).	I replaced the back light again, replaced the power supply (I had one in stock) and lowered the LED current. To avoid return, I replaced the current of the LED bars. I placed another resistor in series with r816 (2r4 + 1r). the voltage 103.8v dropped to 101.2v, and the bus current was 101ma and dropped to 68ma.	Eletrônica R-Tec
LG	14FK3RB	Normal image, with a hiss in the audio, no voice comes out, just the hiss of the fm radio, xiiiiii	Change cap506 near the rgb connector, replace it with a ceramic 104, you have to put it in and you can't leave it without it.		DJ PITUKA
LG	CM4520	Cooler does not activate	It is not a defect but an observation	In this sound model, the cooler is only activated from volume 30	Lucas
LG	32LN5400	On and off infinitely	Altered or shorted LED bars	I had already done everything to turn off the LEDs and left the TV on for more than an hour and found that it was the LEDs that were causing the defect (solution to replace the LED bars)	SP ELETRÕNICAE SERVIÇOS
LG	TV2999LMS LEM8	Does not generate. 9v missing.	Replace q 432		RICHARDO SILVA
LG	TV2999LMS LEM8	Does not generate. +b drops to 78v. standby lights up	D431 e d432 replace		RICHARDO SILVA
LG	21FJ6RB MC059A	Normal league with a vertical blue stripe with terrace lines	Just change the memory		Dl Eletrônica
LG	42PT250B	When turned on, the TV lights up, but dark and with a black horizontal stripe at the top and then turns off and only the audio remains	Missing 15v on the buffer board	Resistor position 517 on the 100Ω bμFfer board open, replace	Fofão estância
LG	CM4340	Does not turn on, completely inoperative	Open fuse, open thermistor and shorted 8n80l mosfet	Replace components.	NiloTech
LG	50PB650B	LED blinking twice	Ysus board short	After replacing the broken c174, I found Q401, Q402, Q403, Q404, D556, DZ552, Q552 and Q554 short, the last two because they didn't have the same ones (SMK0460 - 600V, 4A), I replaced it with (7NM60N - 600V, 7A) and the TV started working again.	David jr.
LG	42LD460 42LK450	Power supply squeaking or buzzing	Zd503 shorted, 5v6		Stiltec
LG	32LK450	No image	T-con defect symptoms	A simple cleaning of the lvds flats and the t-con flats solved the problem	levy
LG	42LB9RTA	LED changes red to green, no image, no lighting and no 12v and 24v voltage, pfc doesn't work.	R 314 or 313 open 820k		Hndrsn
LG	21FU6TL	Without synchronization lying down image	Changing the r512 value 22k it was measuring 23k after the change the tv worked	Electronic badri	badri eletronica
LG	14SB1 MC059D	Vertical closed at the bottom and top, image trembling and with lines	C 309 220/35v		GDP2
LG	CM4320	Turns on very insistently, or does not turn on at all, controls activating by themselves	Shorted panel switches	Replace all panel keys under warranty