LG Monitor shuts off after few seconds

[Symb1]

Hey, I would like to know if my monitor is dead or if it can be still fixed. The problem is that when I turn on my monitor I can see LG's logo but after 3 seconds +- it completely shuts off itself. At first I thought that the culprit might be my GPU or PSU but when I had my pc turned off, it used to show "No Signal" message. I'm a bit confused since it looks like it works but only for a brief period time.

 

[WildCard999]

Have you tried different ports? (HDMI/DP/etc). It seems like since the monitor doesn't detect a signal it's turning itself off as a power saving feature.

 

[Symb1]

It's an old monitor, link - https://www.lg.com/my/monitors/lg-E2250T-led-monitor
It only has VGA and DVI ports and my GPU supports only DVI and HDMi so testing different ports isn't really an option for me. But as I wrote I had it ON many times without PC running and it still showed the "No Signal" message with LG logo, but now, few seconds after touching power button it shuts itself down after like 3 seconds while only showing me LG logo. Even the light under power button turns off.

 

[WildCard999]

Not too sure then, if you can't get a fix this weekend I'd call LG Monday morning.


Call an LG Support Representative at

1800-822-822(National call Rate)

Monday to Friday: 9am to 6.30pm
Saturday: 9am to 4pm
Sunday: Close
Public Holidays: Close

 

[Calvin7]

The AC power adapter can be replaced. It is available for less than $10.
https://www.ebay.com/itm/12V-DC-3A-AC-Adapter-For-LG-FLATRON-E2250T-E2250V-LCD-Monitor-Power-Supply-Cord-/401592220206

 

[Symb1]

Not sure about that I can clearly see green light on adapter and I'm pretty sure it wouldn't work at all with faulty ac adapter.

 

[smorizio]

sounds like the power board or main board in the display is going bad. most time from age it a bad cap.
if you can open the back of the display or google parts for the display see if the cost of the part to replace it worth it.
if it is a cap issue there may be youtube guild on what caps need to be repalced and there cost. if the cost it cheap a local repair shop should be able to replace them at a flat rate.