Lg Repair Tips

Search: lg
Results: 4962

Make	Model	Symptom	Problem	Solution	By
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
LG	29LN549M	Works a little and the sound disappears or no sound	Q700	Remove the q700 and run for the hug	Gilberto Costa
LG	21FJ8RL CW-81B	TV in protection. when removing q13, it turns on without sound and with the vertical closed.	When turned on, it disarmed and returned to stand-by. removing q13 turned it on with vertical closed and without sound. resistor r620 overheating and without 5v on the pins of the corresponding components.	Removed the resistor r614, thus opening the image. reinstalled q13 and it no longer tripped. ic601 shorted.	Fernando Afonso
LG	20MT490DF	Shorted to 19v input	Short on the 19v power supply input line. cause c0921 .near the audio output.		Oscar RJ
LG	42PC5RV	No audio or intermittent audio	Capacitor c318 10uf/25v
LG	M2631D	LEDs flashing and don't light up, TV works normally	C1110 e c 1111		HP ELETRONICA
LG	50PB560B 00000	Just one image pulse then erases	C 205 smd with leakage below r 201=2.2Ω	Replace without testing * good luck!	Jhone eletronica
LG	32LN536B 32LN540B	Alloy and the image with several colored lines vertically, you can also notice a slight buzzing in the t-con.	Tcon supply voltage is low, around 9.5v. change q409		electronicssupplyparts - Gramado/RS
LG	39LB5600	Standby only, does not blink, does not respond to any command	When arming the power supply on the bench, all voltages appear normally. the processor does not heat up excessively, the main voltages of the main board are present. I suspected corrupted firmware, so I replaced the eeprom and nand memories, which solved the problem.	Replace or rewrite the ic1300 and ic102 memories	World TV - Sorocaba
LG	CM4350	After being connected for a while, the device turns off and does not turn on again (5v power supply drops to around 2.4v)	Check the 6v2 zener diode zd902 and photo coupler pc901 tsound must be 1.6v on pin 4 if it is low, replace both.		Eletronica Oliveira
LG	49LB5500 LGP474950	Piscando backlight	Q803 and/or q806 altered, LEDs burned out, screen flashing or no image (with normal sound).	The fets q803 and q806 must be tested outside the circuit, of the pf610bl type, but can be replaced by the irf8010. The only problem is to solder the pins correctly (gd and s) and fix the fets isolated from the housing.	Luisthe
LG	CP14B86A	Vertical closed	Changed r316 and r301	Replace without measuring	Tsat eletronica