Lg Repair Tips

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Results: 4956

Make	Model	Symptom	Problem	Solution	By
LG	CM9730	No power supply sound missing voltages +35 and -35 pfc out with 178v	Changing the 3 1m resistors, tsound is no point in measuring, you have to change r917, r918 and r919, I changed them and the power supply worked		Alemao
LG	42LS4600	When turning on the LED flashes but nothing works	When analyzing the power supply voltages, it did not have 12 and 24 volts, a low pfc power supply with 325 volts wsound it should have been around 380 volts	Replace capacitor c603 on the side of diode d602, it had a loss of capacitance	PROTEC ELETRÔNICA
LG	CM4350	No sound. 5v normal but 12v and 28v appears, but then drops	R709 (3r3) that feeds the open output switching.		Tecnoprom
LG	29FX5CL	Turns on with the image closing on the sides and turns off obs power supply +b varying 110v to 90	Tl431		EletronicaArni L.Leal-sc
LG	32LG80FR	Standby LED flashes blue 16 times, turns on without image	Capacitor c-270, open on the t-com board	After changing the TV, the image returned.	EDS-LELETRONICA
LG	39LN5400	Control functions ok, bus lights up but no image.	Releasing a flat from the tcon, the TV showed half of the perfect image, I thought it was a shorted display, but I found cap c18 on the v-con shorted. Just changed it and it was perfect.		Kezio
LG	42LB5800	Turns on appears shortly after turning off backlight, only the sound remains, if you increase backlight and turn off energy saving it works normally for a while.	Q803 2nf20l with leak	Replace	Hndrs
LG	55UH6150	Dark image (not a LED defect)	Faulty LED circuit in the power supply. Tsound are many complaints about this defect about this model on the internet. Don't just pay attention to the damaged component.	Replace the ci ic601 (map3516) and the fets q201 and q202 (5n40). preventively, I replaced the 2 electrolytic capacitors (10μF x 350v) and 2 polypropylene capacitors (470nf x 400v)	PIXEL ASSIST
LG	CM4350	Does not turn on, inoperative, no voltage 5.6v	Power supply mosfet transistor shorted.	Replace with an 08n80c3 or equivalent. After the replace, the sound worked again.	Tiago C. Neves
LG	28MT48S	Doesn't start	Shorted wifi card	I removed the connector and turned on the TV	Tec Center
LG	22MA33N-PS	The image keeps flashing on LG and it doesn't turn on.	External power supply with open filter capacitor.		eletrofepar
LG	CM8350	One of the channels goes silent, without sound, and after a while, it goes into protection, sometimes.	Affected output driver failure	Leakage in the capacitor connected to the driver's CSD pin causes the voltage, which should be 5 volts, to drop, disabling the output switching.	Davi.sls
LG	CM8350	Display lights up normally, but tsound is no sound on any of the channels.	One of the optical barriers had a broken pin from so much oxidation.	All I had to do was replace the barrier and the sound returned to normal.	2000
LG	21FU4RL CW81A	Burning the c6090 horizontal output	Replace c414 18n and due to the large number of counterfeit components, replace the c6090 with a c4429 position q402.,	Replaces the c6090 with a c4429. It has to be original!	MARCONES DE ARARIPINA-PE
LG	55LA6210	The LED flashes 1 time and does not turn on	D603 in pcf power supply		Divino Moura
LG	32CS3400	Turns on and backlight does not come on	24v power supply missing	Replace ic101, sc1g311	laercio
LG	42LB9RTA 42LB9RTA	No audio	R484 and r485 sda and scl line. 100r	Replace	Alex Semitron
LG	42LB9RTA 42LB9RTA	No audio	R484 and r485 sda and scl line.		Alex Semitron
LG	42LD420	It turns off stand-by but it doesn't turn on and it doesn't turn on the backlight either.	Main board killing the 3.3v.	Ceramic capacitor c471 shorted on the main board. (near the video flats)	Persio(TVCompany)
LG	50PN4500	With sound without image ysus short	Burns out because of capacitors c653, c654, c681, c682, c686, c687, c673, c674, change them and q401 and q402 (you can use the FGD4536), change q508 (use a 5n50), change q403 and 404 30f126 (you can 30f124).		Eletrônica Hunters