Samsung 240T on screen ripple effect

[almoodie]

Samsung 240T just arrived. Works fine except that the screen image shows the following:

Bands of 45 degree cross-hatching, maybe 1.5" - 2" tall, slowly make their way from the bottom of the screen to the top. There are two bands maybe 3" - 4" apart visible at all times. An image is attached, one band can be seen immediately below the NavStudio, RealPlayer, NTest icons.

Al Moodie.

[PlainBill]

Re: Samsung 240T on screen ripple effect

Samsung 240T just arrived. Works fine except that the screen image shows the following:

Bands of 45 degree cross-hatching, maybe 1.5" - 2" tall, slowly make their way from the bottom of the screen to the top. There are two bands maybe 3" - 4" apart visible at all times. An image is attached, one band can be seen immediately below the NavStudio, RealPlayer, NTest icons.

Al Moodie.

60 (or 120) Hz hum bars?

PlainBill

[romansroad]

Re: Samsung 240T on screen ripple effect

Try moving the monitor elsewhere to see if it's RFI/hash from switching power supplies or the newer electronic "ballasts" of overhead fluorescents.

[Wizard]

Re: Samsung 240T on screen ripple effect

The SMPS caps and bad cap on the regulator on the mainboard. Sometimes a regulator oscillate because of insufficient filtering.

Cheers, Wizard

[aliasdck]

Re: Samsung 240T on screen ripple effect

I agree.

I've come across this several times on some acer monitors. Each time it was fixed by recapping the power supply.

[almoodie]

Re: Samsung 240T on screen ripple effect

Thanks Wizard and aliasdck, I intend to recap everything, parts arrived today.

Monitor has developed another problem, a thin horizontal runs across the screen about 1" from top, image attached. Sometimes it's there sometimes it's not. Can this be fixed.

Al Moodie.

[trwilson70]

Re: Samsung 240T on screen ripple effect

Did the recapping cure the cross hatch problem? I have a Samsung 210T that has similar appearance. I didn't recap yet - I found a wire out of the connector to the LCD panel - plugged in properly monitor worked.

[pedro]

Re: Samsung 240T on screen ripple effect

Thank You' to everyone who wished me well. I'm back - sorta. More information is here.

Bill that link doesn't work for me. Curious.

[PlainBill]

Re: Samsung 240T on screen ripple effect

Bill that link doesn't work for me. Curious.

Yes, it is. It worked for me. Here's the link in the clear.

https://www.badcaps.net/forum/showpo...9&postcount=11

PlainBill

[Wrog]

Re: Samsung 240T on screen ripple effect

Bill that link doesn't work for me. Curious.

It didn't work for me either, and I'm just as curious!

[retiredcaps]

Re: Samsung 240T on screen ripple effect

Here is what we are seeing as a message when we click on your link...

"retiredcaps, you do not have permission to access this page. This could be due to one of several reasons:
Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation."

Yes, it is. It worked for me. Here's the link in the clear.

https://www.badcaps.net/forum/showpo...9&postcount=11

PlainBill

[Scenic]

Re: Samsung 240T on screen ripple effect

its in the VIP sub-forum.. that's why you can't see it

http://bambooz.pytalhost.net/badcaps/plainbill-post.jpg

edit: to plainbill: if you don't want this to be visible for everyone, drop me a PM. i'll delete the screenshot as i won't be able to edit the post (10min. limit)

[PlainBill]

Re: Samsung 240T on screen ripple effect

Sorry, guy. This was entirely my mistake. Apparently when they removed the cataract they also removed a portion of my brain.

<Background> When my opthamologist recommended cataract surgery I wanted to gather feedback that would be a little more personal than the information available on Web MD, etc. Given the choice of forums here, The VIP Room seemed most appropriate. UNFORTUNATELY, that's restricted to those with 100 posts or more.

Rather than hijack a bunch of threads, I've posted the results in a new thread in the PROPER forum (Off Topic / Lounge), and (hopefully) updated the link in my signature.

Let's give it a try.

And thanks for your patience.

PlainBill