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CrossOver 27Q LED/LED-P, 27M LED, & 2720MDP GOLD LED Monitor Club - Page 523

post #5221 of 6483
Quote:
Originally Posted by a1qwyx20 View Post

Anyone know where I can get some white LEDs for this moniter?

For what purpose? To replace the LED back light? To provide ambient lighting for the display?
post #5222 of 6483
I'm having trouble with a 27Q which I received last week for a new system build.

Whatever I do, it looks like a monitor does when it has bad gamma settings. Here's an example, from the `download Origin`page.



I've tuned the gamma settings using this chart, to no avail. http://www.phototopics.net/use_quickgamma.html

Since this is a new build, and I don`t have another display that can connect to my new graphics card, it is difficult for me to tell where the problem may lie. Maybe it`s the graphics card, or the display, or even the cable. I have no idea.

Any advice would be appreciated.

Edit: Forgot to mention, I already tried the profile from cloudz00x as well. No dice frown.gif
Edit 2: Damn, forgot to include my system build. Here it is. http://ca.pcpartpicker.com/p/GsRu
Edited by RGiskard - 3/9/13 at 7:59pm
post #5223 of 6483
So this is what my monitor is doing... Takes a few restarts to fix but it eventually works just fine. I haven't tried using my other GPU yet but it didn't start doing this until I got my Crossover. I've already tried 2 different DVI-D cables, etc.. Only thing I haven't tried is my 2nd GPU. Which I'm wanting second opinions because I think my monitor may be defective.
CROSSOVER ISSUES **PICTURE HEAVY** (Click to show)









Anyone got an opinion they wanna share? I'm totally lost...
Edited by Dustin1 - 3/10/13 at 12:25pm
 
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Dell UltraSharp U2412M IPS Panel
Dell UltraSharp U2412M
 
CPUMotherboardGraphicsRAM
Apple A7 Cyclone x64 Chip @ 1.3Ghz Apple PowerVR G6430 1GB DDR3 
Hard DriveCoolingOSMonitor
16GB Internal Storage Passive iOS 7.0.3 4.0" 1136x640 
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post #5224 of 6483
I am having problems with my Crossover monitor. Nothing is showing on the screen, it's just black, but the blue light is still showing. I don't know if it is the GPU issue or something else, it could be. I have been using my 22" 720p TV and it sucks lol. I miss my monitor.frown.gif
post #5225 of 6483
Quote:
Originally Posted by tehpsyc View Post

Well I'm back after a few months of no issues because I decided to buy another Crossover. I was originally very active on this thread when we were all trying to figure out what was going on with the backlight dying and the PCB variations that were responsible. I thought it would be great to do dual Crossovers, so I went for it. Within an hour of using my new monitor, the screen went black and rendered no display. My computer still thinks its working (the monitor is detected) and the back light is still on (so not the famous back light PCB burnout issue that I had with my first Crossover) but a whole new problem. I've contacted my seller and I must say I am extremely devastated to have this happen again. I have tried the following options:

3 DVI cables
3 different power supplies (the one it came with, the one my other crossover came with, and one from a Shimian that was exactly the same)
Both DVI ports on my computer (Radeon 7970, one DVI port and one mini-displayport with the expensive adapter)
My roommates computer (GTX 560 Ti)

I had been running dual 27" IPS's for a while now, just one was a Shimian and one was a Crossover, and I really wanted to get a matching pair. So i had found someone to buy the Shimian and was going to do that swap. I only mention this because I want to verify that my setup is able to handle two of these panels without a problem. I suspect something is wrong with the primary PCB, the one where the connections are made, and will need to be replaced; but if anyone has any suggestions I can try while I wait at my seller's mercy yet again it would be greatly appreciated.

Also, to make the situation more confusing, I randomly tried firing it up again, power cycling it several times rapidly and it actually came on and was working after having been dead for a few hours, not to mention the first dozen or so attempts immediately preceding. So naturally I decided to cycle it one more time (it was living on borrowed time anyway) to see how it would behave, to which it returned to the blank screen with the back light on.

Quote:
Originally Posted by Ueberglock View Post

My Crossover 27Q has developed the same blackout problem after two weeks of usage. At my seller's request, I opened it to examine the innards. The LED driver board (small one mounted on the side) and the connector board (square one mounted in the center) both looked okay. I noticed a screw was missing on the lid at the top edge of the monitor. (See red circle on first photo.) I took off that lid. It covers three more boards. Two of them are long and slim. The larger one sitting below them had two splotches of what looked like white molten wax to me, which seems to come from cylindrical parts mounted onto the board. (See second photo.) Are there capacitors filled with such white stuff? Keep in mind that while it doesn't look right to me, I do not know whether this is actually a defect, and whether it is the cause of the blackouts.




Anyone who knows about electronics, your insights concerning the white splotches are welcome.

You can see a (low quality) video of the blackout here:

http://tinypic.com/player.php?v=30a973n&s=6

The characteristic thing is that the blackout onset is not instantaneous. It takes about half a second to a full second for the blackout to engulf the entire screen. It is like power fading from the monitor, like an LED on some stereo equipment that consumes what's left in a capacitor before dieing off, just quicker.

This effect is a bit disconcerting. I've never seen such a blackout on any monitor at all. Neither on television sets. It certainly doesn't rhyme with quality. Might be bad luck, but a missing screw and squashed whatnot on a PCB, hmm …

I trust the cause of the blackout will be found and the fault repaired. I bought from the seller enjoying the best reputation on this forum.

I do not yet regret purchasing the monitor as the image is truly beautiful. Only one dead pixel on the side (hardly noticeable), and a slight yellow tint, none of which bothers me. But occasional blackouts do, as they are foreboding of an eventual final blackout.

I apologize for writing this again, I to am experiencing blackouts on my monitor, well a bit differently though, because this time my monitor isn't showing a thing, it would like flicker to the screen and then off, if that's what you call a blackout. I would restart the computer with the monitor showing the windows logo loading screen and then black again. Right now it's just not showing anything. I attempted the same thing about 2 hours ago, disconnected things, fiddle around, and did see that I was also missing a screw. UGH, don't know what to do, I miss my monitor!!
post #5226 of 6483
Thanks for that TarballX much appreciated
post #5227 of 6483
Quote:
Originally Posted by Dustin1 View Post

So this is what my monitor is doing... Takes a few restarts to fix but it eventually works just fine. I haven't tried using my other GPU yet but it didn't start doing this until I got my Crossover. I've already tried 2 different DVI-D cables, etc.. Only thing I haven't tried is my 2nd GPU. Which I'm wanting second opinions because I think my monitor may be defective.
CROSSOVER ISSUES **PICTURE HEAVY** (Click to show)









Anyone got an opinion they wanna share? I'm totally lost...

I've contacted my seller with no response yet. I see others having issues similar to mine but I haven't found anyone with the issues I've been having, so I'm even more lost lol.
 
Dell UltraSharp U2412M IPS Panel
Dell UltraSharp U2412M
 
CPUMotherboardGraphicsRAM
Apple A7 Cyclone x64 Chip @ 1.3Ghz Apple PowerVR G6430 1GB DDR3 
Hard DriveCoolingOSMonitor
16GB Internal Storage Passive iOS 7.0.3 4.0" 1136x640 
KeyboardPowerCaseMouse
On-Screen 1560mAH Battery Apple iPhone 5S Space Grey Touch ID Finger Print Scanner 
AudioOtherOther
3.5mm Jack Nano SIM Lightning Connector 
  hide details  
Reply
 
Dell UltraSharp U2412M IPS Panel
Dell UltraSharp U2412M
 
CPUMotherboardGraphicsRAM
Apple A7 Cyclone x64 Chip @ 1.3Ghz Apple PowerVR G6430 1GB DDR3 
Hard DriveCoolingOSMonitor
16GB Internal Storage Passive iOS 7.0.3 4.0" 1136x640 
KeyboardPowerCaseMouse
On-Screen 1560mAH Battery Apple iPhone 5S Space Grey Touch ID Finger Print Scanner 
AudioOtherOther
3.5mm Jack Nano SIM Lightning Connector 
  hide details  
Reply
post #5228 of 6483
To replace the LED lights in the moniter because i broke some of them
post #5229 of 6483
I finally heard back from AW. They apologized for the late reply due to being closed on the weekend. They are sending me a new PCB board to swap out with my current one. thumb.gif
post #5230 of 6483
Quote:
Originally Posted by philharmonik View Post

I finally heard back from AW. They apologized for the late reply due to being closed on the weekend. They are sending me a new PCB board to swap out with my current one. thumb.gif

hope that's it! you'll have the new pcb prob by tuesday our time. if they get it shipped out right now since it's monday a.m there.

that's how it was for me when I got a power supply on one of my 3 that died after 20mins. next day air from korea... insane
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