Question about Hanns.G Corporation JW-199DPB 19" LCD Monitor

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Monitor problem I have a Hanns-G HN199D 19" LCD monitor, have had it for about three years now, and never had a single problem yet. I've always turned my monitor off when I sleep at night, or go out somewhere. But just recently, one morning I got up and turned my monitor on. And the green power light would flash but the monitor would never come on. It took it about 10 minutes to finally come back on. It's done it three times, and I've kept the monitor turned on now to prevent it from not coming back on. It's not in sleep mode, because sleep mode is a steady amber light. Green is power on, and my computer runs normally. I even hooked the monitor up to another computer and it did the same thing. Took it a while to come back on. I searched and can't find any fixes for this model monitor. Does anyone know why it's doing this and how to fix it short of getting a new monitor? Same issue here.. HN199D monitor, about 3 years old, and has worked great.. Medium duty at home, and I turn it off any time I remember, so it's probably been on for half the time! :-) Over the last month or so, it's gotten increasingly bad about doing "the flashy thing" where you can see it's trying to sync to the video, but it gives up and flashes off, over and over. I have mine attached to a KVM with about 12 servers hooked up to it, and my answer has been to keep switching to different sources 'till it comes up, but after reading this thread, I'm convinced that I'm just wasting effort, and the fix is just to WAIT. Today, I did just that - I decided just to wait after fighting with it for 10 minutes (off/on and switching sources), and after I left it alone, maybe 5 minutes later, it just came up... I bet it's a problem in the circuit that detects whether you're using the VGA or DVI connector, but I dont yet know how to fix.. After I get a new (non HANNS-G) monitor, I may take this apart and have a look around for a bad cap in the power supply.. I dont know what else it could be.

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That is a typical symptom of a failure of the capacitors in the power supply. Here is a link to a repair guide that shows how to dis-assemble the unit and what to look for and replace on the power supply board to repair it.

http://www.ccl-la.com/blog/index.php/repairing-the-hanns-g-hn199d-19-lcd-monitor/

I hope this helps.

BuddyMc

Posted on Jul 06, 2012

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You need a new monitor

Posted on Mar 12, 2009

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Hi, I used to repair a monitor from Dell. You might have to check what wrong with your monitor when it went back by shining a flashlight into the screen, not directly but find the best angle to the screen and take a look very closely. If you can see the icons or any image, there will be a minor problem like broken lamps and it is very easy to replace. But the most important part is you need to know how to teardown the screen. . If you cannot see anything on the screen, there'll be some problems with inverter board. If you have soldering tool and want to fix it by yourself, check the caps first. It may cause this problem. Some caps might show leaking or burn spot on the board because of too high temp. If you don't have soldering tool, you better go get a technician to do so.


Hope this help you to examine your monitor. If there is anything I can help you with, feel free to let me know.
Thank you,

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