32LN5400 TV Repair: Common Faults and Solutions.

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32LN5400 Repair Guide: Common Issues and Fixes

Repair tips, common issues and fixes.
Brand	Model	Fault	Detailed Problem	Solution	By
LG	32LN5400	Doesn't start	Power supply	Ic101 (ssc1s311a), r107 (22Ω), r108 (100Ω), q101 (mdf11n65b), c102 (330pf 1kv), f100 (t5a h 250v) - em curto/abertos	Carlos Modesto
LG	32LN5400	Turns off by itself	Cover touches the highest components on top of the power supply and causes poor contact specifically with d801 and c801.	Resolder d801 and c801 also the highest ones next to them.	ZENER Serviço Técnico
LG	32LN5400	Does not turn on the LEDs	Does not turn on the LEDs		Robson
LG	32LN5400	Does not turn on the LEDs	Does not turn on the LEDs		Robson
LG	32LN5400	No image. LEDs lit at full brightness. Only a figure appeared on the screen	C133 shorted on the screen plate
LG	32LN5400	Turns it on and off it goes crazy	Signal and power supply board with screws loose from the factory
LG	32LN5400	Does not turn on or does not turn on	Cold solder on the power supply board	Solve all the plate	Tulio UBA
LG	32LN549C 32LN5400	The power supply works with a strong noise as if it were a flyback with the 12v voltage changed to 14.5 on the secondary which are 3.5,12,24v	Resistor smd r235.56k aberto e r239 10k aberto	Replace the respective resistors and the voltage returns to normal. unfortunately the voltage replace caused by the power supply burned the board...I had to make the repair.	ALVES.TEC ELETRONICA ESCADA PERNAMBUCO
LG	32LN549C 32LN5400	The power supply works with a strong noise as if it were a flyback with the 12v voltage changed to 14.5 on the secondary which are: 3.5, 12, 24v	Resistor smd r235.56k aberto e r239 10k aberto	Replace the respective resistors and the voltage returns to normal. unfortunately the voltage replace caused by the power supply burned the board...I had to make the repair.	ALVES.TEC ELETRONICA ESCADA PERNAMBUCO
LG	32LN549C 32LN5400	The power supply works with a strong noise as if it were a flyback with the 12v voltage changed to 14.5 on the secondary which are 3.5,12,24v	Resistor smd r235.56k aberto e r239 10k aberto	Replace the respective resistors and the voltage returns to normal. unfortunately the voltage replace caused by the power supply burned the board...I had to make the repair.	ALVES.TEC ELETRONICA ESCADA PERNAMBUCO
LG	32LN5400	Disconnecting and the line alone	Cold solder on the d801 pins, just resolder and be happy.		Assistec LG
LG	32LN5400	Does not work, standby LED is off	Tsound is no 3.5v voltage at the power supply, it was the c103 100/50v shorted in the primary	Replaced and resolved	PATRICK ELETRÔNICA
LG	32LN5400	Restart	Nand	I bought another new nand and put it in and it was 100%. Always try to save the board, as this board is getting rare and expensive.
LG	32LN5400	On and off infinitely	Altered or shorted LED bars	I had already done everything to turn off the LEDs and left the TV on for more than an hour and found that it was the LEDs that were causing the defect (solution to replace the LED bars)	SP ELETRÕNICAE SERVIÇOS
LG	32LN5400	Low voltage power supply	Dz203 39v ic201 shorted.	Resolved	carlinhos dj
LG	32LN5400 LGP32-13PL1	The backlight does not turn on, tsound is no image	Check if tsound is voltage backlight_drv pin 1 of ic801 "enable" 3.3v. If you don't have it, check the 1k resistor r801	Replacing resistor r801	RUBENS UNIVERSO ELETRO.
LG	32LN5400 S/N	The long LG type appears and keeps restarting all the time	In my case it was 01 LED changed, I changed it and it resolved	To identify the defect, disconnect the power cable from the LEDs, if the device sounds the defect and the LED is altered or damaged, just touch the LED and run for a hug!!!	JORGE ASSISTÊNCIA TÉCNICA COTIA SP
LG	32LN5400	The TV turns on, the logo appears and turns off, it turns on again, the logo appears, the broadcaster appears for a short time or longer and then turns off.	Wobbly screws on the plates that connect the ground to the housing or chassis.	Cleaning the contacts and tightening the screws.	Joel