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TVs

LG 42LM3400 led flashes

Televisor LG 42LM3400

zenith1357

hace 5 años

Good afternoon friends, I got a lg tv which the StandBy LED flashes 4 times and stays off. Sometimes giving several times the TV turns on, I have my doubts about the LEDs. Do you think the problem is in the lighting panel? I haven't disassembled the panel yet

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francisco angel

244

hace 5 años

First check the voltage of the source if they are correct, the same would change the capacitors at the source, this defect is classic when some capacitor is defective

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Manual de servicio (en inglés)

6.44Mb

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eov47

665

hace 5 años

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hace 5 años

hello, it can produce that failure the excess consumption in backlight (some LEDs in short) if that model feeds 2 branches of LEDs it is easy to measure if one consumes more, if it is a single series it only remains to disassemble the panel and see - there is a tester of led backlight panels "Blester" (Creatronica) is very practical, it adapts to any LED, with a single button you try a series or a single led - I hope it serves the data, Greetings

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José Luis Carpi

1.684

hace 5 años

It would be nice to comment on what integrated LEDS controller it has. On occasion, the cut-off threshold can be varied and compensate for the difference in current consumption of the LEDs. Best regards.

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