Lg Repair Tips

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Results: 4876

Make	Model	Symptom	Problem	Solution	By
LG	21FU4RL MC-059C	Closing horizontal	L401 open and c420 dry	Replacement	Eliel
LG	21FU4RLG MC-059C	Low power supply 79 volts on stand by	X1 crystal oscillator	Replace	LUCIANO
LG	21FU1RLG	When turning on normal operation after a few seconds two small dark bands at the top of the screen	Vertical output stv 9326 which was replaced by a la78040b	After replacing some capacitors on the vertical line, the problem continued, I decided to replace the vertical output, which resolved the problem. Make sure the power supply is ok.	moroni eletronica
LG	29FX5A-LA	TV inoperative, front LED off.	R405 was found with cold solder and signs of overheating. After re-soldering it started working again, but all I had to do was move the chassis and the defect returned and r405 was almost smoking. The reason for the heating is that this resistor feeds the horizontal drive transistor collector and the cause of the defect was cold welding on IC11 which stops sending the horizontal pulse, making the base of Q402 very positive. Note: in the r405 scheme it has a value of 150Ω and a zener in parallel. In this device tsound was no zener and the resistor was 180Ω, after repairing the device I put a 220Ω one and it was perfect.		littlecarlos
LG	RP-20CB20A	Very little brightness with no contrast	D 501 and d502 replace without testing		EDGAR THIZ
LG	29FU1RS CW62C	+b without load it was 115 volts and it should have been 140 volts with load it dropped to 75 volts and the power supply kept oscillating and making a noise in the traffic tic tic tic	R 801 33k was open	Replaced r801 the power supply arrived at 140volts normal without load	Evandro/sousa.Astel Eletronica
LG	21FU6TL	Vertical closed	Resolve		This email address is being protected from spambots. You need JavaScript enabled to view it.
LG	RP 20CC25	Turns on after 5 minutes turns off	D 501 open		José nunes
LG	20RB86	Turns on the LED, when you press power, it goes off but does not discharge	Chap. electrolytic 470/16 in the secondary power supply (near ci lm 7812)		This email address is being protected from spambots. You need JavaScript enabled to view it.
LG	20CD2R	When turned on it has normal sound but reduced frame	Defective coupler photo	Replace and plz	ELETRONICA MEDEIROS
LG	29FE8RL	Relay knocks but does not turn on.	C405(680pf x 2kv)burst is close to the fly back.	Replace. I put a 2.2nf x 2kv one.	Rondinele_Campo Redondo/RN
LG	22LG30R TA-LP81K	Nothing turns on, power supply inoperative.	Strw6252, 2a fuse close to the heatsink, dz 102 smd 6.8v 1w next str burnt.	Noun. the str, put fuse 2a type philips and the zener can be conventional, chaos don't think smd.	Assolini
LG	M228WA LP69G	White screen	2.5a/32v smd fuse on the screen board, located close to the input connector. This board is part of the display and is not included in the schematic	Put a fuse solid state icp n25, which despite being 1a/120v, works well	Assolini
LG	M228WA LP69G	White screen	2.5a/32v smd fuse on the screen board, located close to the input connector. This board is part of the display and is not included in the schematic.	Put a fuse solid state icp n25, which despite being 1a/120v, works well.	Monitor
LG	21FU1RLG MC-059C	No vertical, line in the center	R313	Replace r 313 (47k) open.	joaomvjr
TV LG	29CC9RL	TV arrived without very low power supply	Defect ic431 with leak and broken r831, just change it and run for the hug.		Eletronica manaus
LG	RP-20CB62	Ch.power changing channels	Eprom	Re-record	LUCIANO
LG	RP-20CB62	Turns it off on CR and it still generates	Q13	Switch short	LUCIANO
LG	29CC2RL	When turning on the key it takes a while to start and then it starts with a wide gap and the image shakes, wanting to close	Power supply defect not stabilized, I changed the photo coupler and the problem was resolved		luis carlos de belford roxo
LG	29FU6TL	With audio, but the image is weak, like a bad tube, when the screen increases, the image flashes without focus	Vertical output, as incredible as it may seem		jefferson godoy