24 inch lcd pannel dark

Yesterday I went to use my Imac and the top half of the screen has gone dark. I can still see the text but it is musted. I took a screenshot and it does not show here, but I took a photo with my iPhone and it shows. I have been told it is either a bad led backing/LCD pannel. Or a video cable. How would I go about diagonoicing this, Any help would be apreciated . If the fix if over 70... Then It's time for a new iMac.
Thanks,
Britain

Any Ideas? I have no problem opening up my iMac and replacing parts. I just don't know what part, and even how to diag the problem.

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Gradient banding in Samsung 20 inch LCD

Now idk where to begin, ok here's the best info i can give
I just assembled a new pc for graphic work/budget gaming 2 days ago:
intel core i3 530 mhz
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Now when i opened an old psd which contained some brushing and gradients, i could see bands in the gradients, even the wallpaper i put had bands on it. I even noticed that everything on my lcd looks hellish sharp, and when i force my head really close, i can see small square pixels all over the l cd. Is it due to the analogue output(VGA)?, should i switch to DVI?
I use 1600x900 res (native) at 32 bit
Then to test whether all gradients look the same, i opened a new ps document and made a black to white gradient, but it was smooth, there were no bands in there. But when i made a simple white box, applied full gaussian blur, and zoomed in around 2000% i could see the gradual bands again though not as bad as in the colored psd. It seems the problem only happens when i give a glow, or blurs. Then i played Splinter Cell Conviction (everything Maxed out) and again i could see gradient bands forming up in dark places, like when i die and a small cutscene is played, i could see gradient bands on the 4 corners. What could be the problem, is it the card? the lcd? i am new to lcd monitors so i dont know how to calibrate or whatever.
Please check if anyone else can see the bands on their lcd?

Regarding calibrating your display, it's not strictly necessary, but you did mention "oversaturation" in a post above. It's certainly your call whether you want to make your color-managed applications put out calibrated color.
Re switching to DVI, that's falling out of favor... How are you currently cabled to your monitor? HDMI? VGA? You've mentioned both. DVI would CERTAINLY be better than VGA.
This "Coarse effect" you speak of... Are you talking about jaggy fonts, or what? If so, do you have Font Smoothing enabled?
When I first switched from CRTs to LCDs (in 2004) I marveled that most graphics created by people using CRTs were actually butt ugly, simply because they could not see the actual image content very clearly and tended to overlook things and overcompensate for their own monitors' shortcomings.
On a good LCD using a good interface (DVI or better) you can see every pixel as a discreet element. That's a given.
After my switch from CRT to LCD I had to reset my perceptions - I had thoughts just like yours! After a while you start to realize that what may look oversharp and harsh to you may even still be too subtle for CRT users. For some time there's been a mix of CRTs and LCDs in the world, though honestly lately I've started to ignore the former as they are truly a dying breed (just try to buy a new CRT monitor nowadays). It is not wrong to concentrate solely on making graphics look good on ultra sharp LCD monitors. Don't be too hard on yourself for what you've produced in the past, when you couldn't "see clearly" yet.
That said, I should note that there are some LCDs that are not sharp at all. From time to time people post on this forum that they have trouble seeing the Photoshop UI elements at their fixed small size, and as you're no doubt aware now with your monitor there's really no problem seeing them on a very sharp display.
You could try taking a macro photo of what you're seeing on your display that you don't like. Other than that it's very difficult to communicate about such issues on a forum.
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Hi
Now forgive me for maybe sounding stupid but I thought the 24 Inch LCD panel did not contain any cooling
fans.
Today I noticed a dark blotchyness starting to appear in the bottom left hand area of the screen, I have this very same problem with my iMac which contains fans for obvious reason.
When I place my hand next to the the underside of the panel 5 to 6 inches in from the left hand side I can feel a faint blow of cold air.
Now this to me says that this panel has a fan inside ?
Message was edited by: Washac

just come in and turned it all on, placed my hand where I describe and there is a cold downward blow.....

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I am having a font smoothing issue with my MacBook and my Samsung LN-S2352W 23 inch LCD (http://www.samsung.com/Products/TV/LCDTV/LNS2352WXXAA.asp). I am using the mini-DVI to VGA adapter and the plugging that into the VGA port of my LCD. It doesn't matter which app I run, but as long as it has fonts, they come out blurry, hazy, colors bleed, etc.
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TinkerTool didn't make any difference for me. I played around with it and found that there was no improvements using it or disabling font smoothing.
I have watched DVD's on this LCD being played with my MacBook. I have seen 2MB+ full screen digital pictures. Both the DVD and digital pics look absolutely amazing on it.
It's only the fonts that appear blurry or in some areas they appear to have a shadown to the right. This happens with any text that appears in every app.
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Hi there,
I got a 23-inch LCD TV Monitor from Syntax Olevia and somehow it doenst work with my powerbook.
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Hi,
I'm not familiar with that monitor, but its resolution might be higher than your PowerBook can handle. I have a first-generation 12-inch PowerBook, and it seems that it can't run any of the Apple Studio monitors currently being sold. If that monitor can display a resolution of 1024 x 768, try that, as your PowerBook can certainly handle that resolution. Another thing to try is to see if you can find a friend or coworker who has a similar PowerBook (or any other Mac), so you can try connecting the monitor to that machine to see if there is a similar problem. If no Mac can drive it, you would probably have a good excuse for returning the monitor.
Hope this helps,
Ken

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Hi ANGDAK28,
So sorry you're having problems so soon after the manufacturer's warranty has expired. I am by no means an expert on this, but what I'm seeing in other online support forums regarding red vertical lines on lcds suggests that this could be caused by a number of issues, ranging from wiring to the circuit board to the actual lcd panel - at any rate, it doesn't sound like an easy fix. You may wish to contact Insignia at 1-877-467-4289 to see if they can offer any recommendations over the phone, but they could also arrange for a tech to diagnose your television and give you a repair estimate (there would be a basic charge for the diagnostic, of course).
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Elizabeth|Social Media Supervisor|Best Buy® Corporate
Private Message

T42 LCD is dark, external monitor sometimes works, Presentation Director seems worthless

On Friday, my LCD went dark. When I looked really hard, I could see all the screens that I'd been working with, but I couldn't bring them to light. If I shut the cover and waited for the machine to suspend itself, then opened the cover, I'd get the LCD back, for 10-15 minutes. Then the LCD would go dark again.
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When I disconnected the external drive, I lost the LCD again. I tried to work with the Presentation Director, but the T42 just doesn't want to obey. The Fn F7 keys are working inconsistently. I am in doctoral student hell, facing (what feel like) already impossible deadlines and I have to get this thing working. Does anybody have any suggestions?
Here's info that may or may not be relevant. Thank you in advance....
T42 2373
XP Professional
BIOS 3.23 IRETDRWW
ATI Mobility Radeon 9000
ATI Control Panel 6.14.10.5154
ATI Hydravision 3.25.0006
ATI Display Driver 8.133.2.1.1-061116a-040094C

Welcome to the forum!
Prior to this last episode, was your LCD reddish/pinkish on initial boot, or when running on battery?
Good luck and let us know.
Cheers,
George
In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

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Try resetting the TV to factory defaults.
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24 inch lcd pannel dark

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