Lg Repair Tips

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Results: 4956

Make	Model	Symptom	Problem	Solution	By
LG	W1941ST	Monitor turning on and off normal voltages	Power supply opto coupler		Mariano
LG	14FK3RB	The LED turns on and off	405 diode in short near the AV inputs 1n4148	Just replace and run for the hug	Eletrônica Power
LG	14FK3RB	The LED turns on and off	Diode 407 1n4148 shorted near flyback		Eletrônica Power
LG	DH4130S	Turning off after a few seconds	Ic904, sn431. check components in that line!		Eletrônica Cecé, Brumadinho mg
LG	42LV345C 42LV3500 42LV3700 32LV3500 LC420EUN ABDV3	No image, just white horizontal bands. When disconnecting one side of the t-con flat, that half of the screen turns white. the same happens on the other side.	It makes you think it's a screen defect but tsound was no oxidation on the flats and no heating of the screen flats.	The defect is in the t-con. the ic boils! replace and run for the hug!	PL ELETRÔNICA
LG	E2360V	Turns on, all functions work, but when inputting a video signal, tsound is a black screen (no image)	Flash rom data corrupt (u402)	Rewrite the flash memory and it works normally again.	PRO PC ELETRÔNICA E INFORMÁTICA
LG	42LG60	Blue image	Change capacitors on the main board. In this model, the capacitors end up drying out over time.		Rmseletronica
LG	RP20CC25	Activates the av, but it doesn't come in.	Dido zener zd 505, shv em tsurto		José delta line
LG	21FJ6RB MC-059A	Turns on with the screen almost off and a reduced frame	Low secondary power supply and 180v from pin 2 of the flyback giving 82v	4k7 resistor r844 replaced to 6k1 Just replace it and run for the hug!	JOCIMÁRIO
LG	32LC4R	When turning on, the audio on the HDMI input fails and improves after 3 minutes, it is perfect	Capacitor c824 47uf/16v on the main board close to the crystal, replace.	Replacement, can be 100μF.	José Dias
LG	32LB550B	The logo appears and turns off, it remains in this intermittent process.	Corrupted eprom	Rewrite the eprom	Renan
LG	LG 29CC9RL	Turns on normally, after a while it turns off for no apparent reason	Photo coupler	Replaced and solved the problem	Eletrônica Renascer
LG	CP-15Q90A	It takes a while to turn on, when it does turn on it takes a while to accept volume, channel, etc. commands... it doesn't tune channels.	D23 change without measuring.		jr_TEC
LG	CM9740	Turns on normally, but the radio, CD, USB doesn't work and tsound's no sound coming out of the output, it just makes the speakers click.	Dsp in short ic501- mlc3700a I replaced it, it worked, usb, radio cd, but no audio comes out, I checked the circuit board near the dsp ps9860 heating up a lot, I decided to replace it for the new one, solved, sound comes out at the outputs	Defect resolved	Carlos
LG	CM9740	Turns on normally, but the radio, CD, USB doesn't work and tsound's no sound coming out of the output, it just makes the speakers click.	Dsp in short ic501- mlc3700a I changed it, it worked, usb, radio cd and sound comes out of the outputs	Defect resolved	Andre
LG	E1941C	It doesn't turn on, the LED doesn't light up.	Corrupted (oxidized) track on the power supply board. This track carries power (key 0) between the main board and the sensor board.	After recovering the trail everything was ok.	George Pontes
LG	BH4120	Tsound is no sound (audio) in the speakers..	Lack of power supply pin 7 of ic901 ........ replace q901 .. and pc901 (photoa..)	`º¿º'	Alextecnico
LG	21FJ8RL	Break and cut. try breaking twice and turn off the LED. The Q16 was removed, the vertical was replaced and nothing.	R816 and runs for the hug ................		JK Eletrônica PE
LG	50PG30TR EAX42062803(0)	Blurred and distorted image also applies to 42 inches	Capacitors c1038 and c1044 both exhausted 100uf 16v	Replace them, common electrolytics fit.. if it doesn't work out, also replace the c1019 47μF 16v	Flávio SBC, SP 11 947182971
LG	MCV 904	Doesn't start at all	Power supply board, ic 921 short	Before repairing the power supply also check the outputs, one of them was shorted which caused the power supply to burn out, sound protection does not always prevent this type of problem.	PATRICK