Re: LG 42LG3000 Strange fault will not go into standby!

Hey,
maybe it would be helpful to take a look at the Power Off History in the servcie menu.

If you encounter something like POWER_OFF_BY_ACDET, this post may be helpful:
[url]https://www.badcaps.net/forum/showpost.php?p=775925&postcount=58[/url]

They had problems with switching from stdby/on in various combinations. The analysis and solution from densmith seemed to be helpful for their case and devices.

Do you have the name/number of the Mainboard? Maybe schematics?Re:...

Re: LG 39LN5758 random reboot / off-on while watching

Hi again,

Following the trace of the POWER_OFF_BY_ACDET entry in the Service Menu I found this post from densmith who performed an excellent analysis on a different model:

[url]https://www.badcaps.net/forum/showpost.php?p=775925&postcount=58[/url]

My case might be similar. However, the voltage detection seems to work a bit different on the LG 39LN5859.
I got my hands on the service manual for my TV. It features the schematics of the MB - I attached the part, where some kind...

Hey guys,

a while ago my LG 39LN5758 started performing random reboots while I was watching something.
It started during phases when the volume was set to higher level / the movie had a very loud sequence. The TV would suddenly go off and then reboot.
After this event, it returned to nominal functionaltiy.
But now - a few months later - sometimes the TV sometimes is in a loop, performing dozens of reboots before eventually reaching a somewhat stable operation.

The error pattern let me thinking about a bad cap or some other issue with the Power...

Re: New Members - please post your introductions here

Hey everyone, I'm an electrical engineer from Germany and since my TV broke down a while ago I figured: Let's have a try reparing that thing.

Long story short - I found this place and hope to share my knowledge and learn something new : )