Hello everyone, I have an LG 39LN5400 with a no power problem.
I plug in the TV and the power led flashes twice. No screen, no sound. Also no reaction to power button/remote.
I checked the PSU output values and while the output towards the mainboard is OK the output to the LED backlight looks weird.
The output table shows 133.2V for the 39inch version.
I measure 107V on the + and -42V on the - side of the connector.
What should I check next?
Is the backlight faulty and I should dissassemble the screen or is it the PSU?
Thanks in advance!
I plug in the TV and the power led flashes twice. No screen, no sound. Also no reaction to power button/remote.
I checked the PSU output values and while the output towards the mainboard is OK the output to the LED backlight looks weird.
The output table shows 133.2V for the 39inch version.
I measure 107V on the + and -42V on the - side of the connector.
What should I check next?
Is the backlight faulty and I should dissassemble the screen or is it the PSU?
Thanks in advance!
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