Samsung 2493 HM issue

[zulururu]

Re: Samsung 2493 HM issue

I have:
+24v:1.2v
Gnd: 0v
SOS:0.13v
BL:0.13v
Adim:0.06v

[alexanna]

Re: Samsung 2493 HM issue

It would be best to have everything connected,Please be careful not to short anything to ground.

[zulururu]

Re: Samsung 2493 HM issue

Hi Alexanna,

Thanks for your quick reply, on the left hand side connector there are pins labelled +24v, Gnd, SOS, BL, A_DIM.
Do I have to plug all the cards together to measure these voltages ?

[alexanna]

Re: Samsung 2493 HM issue

I do see 2 Caps that looked bulged.
On the left side of the power supply there is a connector, I can read that some pin are 24Volts,There should be some pins labeled on/off or p/on and one that is marked dim,and some grounds.
With a signal going to the monitor what voltages do you read on these pins?

[zulururu]

Hi,

I Just discovered that forum a couple days ago and there seems to be very knowledgeable people and a lots of information here !
I have a Samsung syncmaster 2493HM which was working fine until a few days ago, then suddenly the backlight started to go dim and a few seconds later, the monitor was black.
Now, when I turn on the monitor, the blue LED light comes on and stays on solid, never go to sleep (never amber or blinking) and the screen remains blank. Even with a flashlight I don't see any walpaper.
I looked at some similar post in the forum and didn't find any solution yet. I am very new at this.
I didn't find any obvious damaged caps, the fuses seems to be good, I checked the 2 voltage regulators on the logic board as per this thread
https://www.badcaps.net/forum/showth...ghlight=2493hmand I find the same results as Werthles:
"On the red circled chip i got 5.22, 0, 5.22 on the three pins starting from the top in the image. On the yellow circled chip i got 2.52, 0, 3.31 on the three pins starting from the top in the image."

Attached are pics from my different boards.
Can somebody help me please ??