Lg Repair Tips

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Results: 4933

Make	Model	Symptom	Problem	Solution	By
LG	32LH510B	Standby light on but not turning on	Ic 500 short		eletrônica newtec
LG	43UH6100	Image appears and turns off in a direct loop.	Low power supply. When turning off the LEDs, the TV remains on but with the power supply at 160 volts	C612 shorted	LABOTRON
LG	50PA4500	Burning q404 q403q402q401 due to changed vsc voltage	Cause r266 open check all line resistors		reginaldo.
LG	21FU6TL CW62E	Vertical closed with lack of synchronization in characters	R311 =30k open	The solution is to replace it	ELETRONICA EM CAEM
LG	42LB9RTA	No sound, just noise from the speakers.	C208 and c221 on the power supply board. Note: all power supply voltages are normal. exhausted capacitors	When replacing the TV it worked perfectly.	Real Eléctron Carvalhos MG
LG	55NANO75SQA	It wouldn't turn on, just the standby light on, power supply ok	Faulty main board	Changing the main board, I put it from another LG55uq801c0sb model, it worked great	Gilberto Costa
LG	47LA6130	Does not tune digital channels	Integrated circuit ic3701 does not supply voltage to the channel selector at pin 13 of the selector		ELETROFEPAR
LG	RN9	Sound keeps failing	Mosfet in position q208 close to the sound output and the 12000hz crystal	This shit box doesn't have a complete schematic but I managed to solve it by putting a 2n7002bk-gp	ANDREI ELETROINFO
LG	47LM6700	LED TV stuttering and won't turn on	On the main board, I disconnected all 24 volt power supply at the main board input connector, the image appeared and sound. I found a shorted capacitor on the 24 volt line. I changed the capacitor and it works perfectly with sound.	Replace capacitor on the 24 volt line very close to the hdmi connectors.	Marcio
LG	22MA33D	Inoperative, no short on board	Capacitors 800 and 804 shorted	Replace the aforementioned capacitors	Gmedeiros
LG	42LG30R	Red LED turns off as if it was going to turn on and it doesn't turn on, power supply voltages are absent	Shorted transistors on the inverter, the fuse did not open, causing the 24v power supply to trip		davi.sls
LG	26LC7R	HDMI inputs don't work.	Replace capacitor c832 of 100ufx16v on the main board.		Persio (TVCompany)
LG	32LV300C	It works normally with the series lamp and when connected directly to the 220v, it works for 30 seconds and restarts.	Zener zd9108=16v short (located on the bottom side of the board)		joaocarlos1705
LG	50PB650B	Doesn't start	Capacitor c671 shorted and transistor q508 shorted	Replace them and go for the hug...	Lucas Venzke
LG	42LB9RTA LP7BB	TV freezes functions, restarts, image flashes.	Defect in the main PCI, check 3v3 IC1000 regulator. in my case it was high, outputting 4v instead of 3v3.		rafaelmoraes99
LG	RP14 SC023A	Missing vertical opened at the top and at the bottom	Ra07,309,421	Replace r307,309,421	Cícero Santos
LG	42LH20R LP91A	Only the standby LED is on, nothing works,	Defective 3.3v regulator ic1007 is an ap2121n-3.3tre and is next to the sound output on the top of the board	If you don't have the original, just put another 3.3v regulator that works.	resistronic resende
LG	60UH6150	Backlight does not come on after changing the LEDs	Changing the 2 LED bars	I replaced the LEDs and went to test the TV! As I didn't imagine, this TV doesn't turn on the LEDs if the screen (display) is not connected! the power supply voltage for the LEDs rises to 315v, the normal operating voltage is 180v! So don't be fooled, you replaced the LEDs, being of good quality, just set up the TV and run for the hug!	Rafael Sena
LG	32LV3400	Turns the STB LED on and off, nothing more	Cold welds on the processor	Reballing, to make sure that this really is it, it is possible to do a brief reflow, if it works, move on to resoldering.	Davi.sls
LG	32LH570B LJ6/LJ7	Turns on, normal, has audio. but no image, but you can see the weak image in the background, well I immediately suspected the LED bus, but it was blue and needed to be replaced. I ordered the part and put it on and nothing. the bars were good. and this TV is from an external power supply. I went to check the LED controller CI, and I found that tsound was a shorted capacitor, killing the voltage that goes to the bars, and tsound was not enough voltage to light the bars. Capacitor on pin 25 shorted. each case is different.	Changing the capacitor on pin 25 of the LED controller IC. The 32lj600b TV also uses this same circuit.	Replace it.	JC Eletrônica Cícero