Lg Repair Tips

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Results: 4915

Make	Model	Symptom	Problem	Solution	By
LG	32LH515	Short on board, won't turn on	Chap. smd 502 short		WAGNER
LG	22MT45D-WS	Horizontal stripes/bands, medium greenish, random, changing place.	External power supply dropout filter capacitor. 1,000uf /25v.	It seemed like bad contact on the LVDS cable and sometimes even on the internal tracks of the board. I looked through everything on the TV, replaced the lvds flat, etc. In the end, the problem wasn't even with the TV itself, but with the external power supply. When I turned it on with the bench power supply, the TV turned on normally. observation: when measuring the capacitor mentioned in the previous field, with the capacimeter, it was fine, but when measuring the power supply output with the oscilloscope (with load), it showed noise, without load it did not.	Fabiano Ferreira
LG	CM8450	The sound would turn on, but then the "good bye" message would appear on the screen and turn off.	Micro switches on the panel were leaking (they were oxidized which generated current leakage). In my case, the "folder", "function" and "enter" keys were the ones with the most obvious oxidation. I noticed that when I touched the keys, it didn't give the "click" that it should, so when I did a visual inspection on the front plate, I checked the oxidation and then confirmed it with the multimeter.	I replaced all the microswitches on the panel with new ones and removed some oxidation on the tracks and then applied enamel to protect the copper.	Fabiano Ferreira
LG	CM8350	S-protec sound I am 88178817	Lack of 5v on pin 3 of ic207 88178817	Test the resistor that is connected to the ci, remove it, clean it, put it in to see if 5v comes back, if not, replace the ci	marcos melo cascavel ce
LG	42LD420	Turns on and off in a few seconds	Jam the resistor r 610 (smd)		J D M
LG	50PB690B	Does not turn on, when pressing the power button the TV turns on, turns on the screen quickly (blinks and turns off) and repeats this cycle several times	Ic3303 hdmi controller heating up, measuring the input terminals and tsound was variation in one of the pins	Removed and the TV turned on immediately, after some testing time, the ic3303 ( sil1292cnuc ) was replaced with a new one and everything was perfect.	CDS_DIAS
LG	32LN549C	No image	Burned out LEDs (TV LEDs are compatible with models of the same letter)	To confirm, throw a cell phone light on the screen with the TV on to see if it appears immediately, without an image, then open the TV carefully, remove the screen, remove the films correctly without changing the order, access the LEDs, check the LEDs replace the bus and that's it	Gbrito
LG	MCT806	No sound, display on normal and power supply 48, 12 normal	Voltage of 3.3v that feeds the ci pwm ic602 (ps9850) low, 1.2v replace of ic603 ak5358 that generates the 3.3v		Protec Eletronica
LG	MCT806	No sound, display on normal and power supply 48, 12 normal	Voltage of 3.3v that feeds the ci pwm ic602 (ps9850) low, 1.2v replace of ic603 ak5358 that generates the 3.3v		Protec Eletronica
OLG	CM4640 EAX65422801	Turns on and a few seconds goes into protection	The defect and bad pc 903 coupler photo	Replace the PC 903 photo coupler	nadobom
LG	42LH20	Doesn't start	Short on power supply board, replace power supply board		Gbrito
LG	32LN536B	Turns on, but the screen flashes and the LEDs do not light up	A burned out LED with a defect on one of the buses	Carefully remove the screen, remove the film and store it in the same order as it was, turn on the power supply with the connection to the bus connected to the board, observe which led is burnt out, replace the defective bar or led	Gbrito
LG	32LD460	TV doesn't turn on, the LEDs don't light up	Ci. str w6053n with problem, input fuse opened, check photocouplers, capacitors 450v 68 uf, resistor r518 opened, zener diode 5.6v address zd503 is shorted	Replace the c.i, input fuse, replace defective photocouplers, check the 450 capacitors, replace the resistor r518 and replace the zener diode	Gbrito
LG	49UJ6565	Bus replace	Blue leds	A solution already sent sound, says to remove a resistor r808. You should actually remove this resistor and replace it with r804. Then you have two 2Ω r on each bus and not one with 1r and the other with 2r as done previously.	Claudio Pietrantonio
LG	42PJ350 EAX61332701	Dark image, blurry image, grainy image,	Ysus defective replace r-729	Replace the 2r2 resistor with another equal one and check if tsound is cold soldering on the ysus and power supply.	Maike Sorriso-MT
LG	42LB6200 S	No image with sound only lights up LEDs	Capacitor c 202 shorted on the display ruler	Replace of the same	ELETRONICA GASPAR
LG	CJ65 EAX671544402	Doesn't start	Ic 101	Place a step down voltage regulator regulating the output to 1.25 volts	TV SAT
LG	CM4440	Turns on without audio and goes into protection	In my case it was the 3 resistors r915, 916 and 917 that were broken (torred) and did not pass power forward, I replaced them and it was fine, you can even solder them and you can use them	And it was zero	Eletrônica Moura trindade go
LG	50PB560B	Missing 18v on ysus	Ci ic251 close to r253 large 220k resistor	Replace your ci and run to the hug	Gilberto Costa
LG	50PB560B	Oscillating 18v	Ci ic204 three terminals broken	Replace the same and run for the hug	Gilberto Costa