Lg Repair Tips

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Results: 4875

Make	Model	Symptom	Problem	Solution	By
LG	32LV2500	Blinking standby tv won't turn on	Large capacitors at the sound output shorted.		Rivaldo
LG	32LK450	It turns on immediately and turns off or restarts, blacklight flashing as if tsound were bad bulbs.	Several cold welds were redone and the defect continued.	Replace capacitors in the power supply c510 and c509.	Hilário Luis Sperling
LG	22MA33D-PS	TV inoperative, nothing turned on!	Smd 716 capacitor, close to the speaker connector, shorted...after it was removed, the TV worked...replaced it with another		Williansbill
LG	14CB25	It came with a half-height vertical and did not memorize after updating the data	Rectifier diode d 22 and capacitor 100uf 10v c 40. on the EPROM side		JR Alagoinhas BA tec
LG	PA4500 PB 21A	Burning components	TV schematic for possible troubleshooting		Hernany
LG	M4214C-BAJ.AWZMLJZ	Does not turn on, fuse in the middle of the board is open and 2 diodes are shorted.	Replace of shorted diodes in position d502 and d503 close to the relay. put diode mur460 or larger.		rafaelmoraes99
LG	42PJ350	Does not tune channels	Replacing the 20r smd resistor r-643 which is close to the ic-602	On some devices it is under the glue on the hdmi connector	Pedrinho
LG	32LS3400	Connect the plug to the socket, the voltages are normal, it turns on and has audio but the screen does not light up.	The voltage 3.3v, 12v, 24v are normal, the voltage of the LEDs starts with 140v and drops to 24v.	Check the LED bars, one of them may be defective, a burnt out LED, replace it and it will be normal.	Eronaldo (erontec)
LG	32PC5RV	Turns on, but the power supply mosfets q602 and q603 were getting very hot until they burned out in 20 minutes	Shorted diode and open resistors	Replace d603 r602 and r603	LOOPTEL
LG	22MA33N-PS	Doesn't turn on anything, no stand-by. It has almost all voltages, but it lacks 12v for the dipslay.	Bga	Reballing lge2121, solved it the first time, before stopping turning on the TV it showed artifacts in the image etc. With this we went straight to reballing.
LG	21FS4-RLG	Buzzing, hissing (particularly low, but audible)	Possibly the problem is on the kinescope board, possible cold soldering and poor contact in the sockets	In order of priority; dismantle the socket from the tube, clean it to eliminate any oxidation or dirt, redo the cable that comes from the flyback to the socket (cut/eliminate and strip, only the part that is inserted into the socket), finally check the welds on the board to the look for any cold welds.	Thiago
LG	20CD2R-LD MC-059A	Reduced vertical, +/- one finger at the bottom and top, in service mode had no effect	All voltages were ok, after a lot of trouble, I found the r303 changed to 9 homes replaced i	Thank God it was perfect, go for the hug	G.G eletronica
LG	32LS3400	Turns on, then LG appears and then turns off, leaving the sound	Power supply capacitor 1500uf/10volts position c201 power supply board		SANDRO VIEIRA
LG	14SB 1RB LEITURA SEM CONDIçõES	Doesn't start	Causes resolution		Borjao
LG	49LB5500	12v low and does not stabilize	Resistor smd r126 100k aberto		3R
LG	42LE5600	TV turns on, no picture, backlight on.	Cold soldering	Resolder the ic1000, ic100, ic9001 and receive the money from the customer	Fabrício Reis
LG	42LH20R	Only standby LED is on, no functions	I1007 regulator h, zv rom	Ci replace	Reparatech
LG	LHD625	It stopped completely, it won't start.	D953 (sr306) shorted.		SERVITEC Quixadá - Ce
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