LCD Screen blinks on & Off at start up up-to about 10 minutes
I have a Gericom 19'' flat panel LCD monitor. When I first start the computer the screen and led light keeps blinking, also picture comes on and off. I did try it on other computer same result. After about 10 minute I get the picture on the screen. Also sometime after 2 or 3 reboots everything is normal until I shut off the computer. May be after about an hour if i try to restart the computer same problem however it takes less time perhaps 2 or 3 minutes for the screen to be normal.
I have read a lot of post mentioning Capacitors, looking at PCU I can not seen any blown capacitor. I did notice some brown stuff on a round coil like (about 1cm round copper wired, says 125° on it) object.
There are about 20 odd capacitors on PCU, i have no idea which ones needs replacing.
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Re: LCD Screen blinks on & Off at start up up-to about...
Hemante, you should look for electrolytic verticle can type capacitors whose tops are not flat but slightly swollen. Also check all the soldering for COLD or THERMALLY FRACTURED solder joints on the bottom of the inverter board that powers the CCF tubes. Be sure to replace caps with only 105degC caps. NOT 85degC!!! If you have digital cam take pictures before you tear apart monitor. this way you can get it back together correctly. Hope this Helps. Good Luck!
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More then likey yuor Inverior Board is going bad if not that, Its the Power Board
First check Invertor This Happens a lot Its hard to find someone to fix it.
Well I had a hard time. I just waited and bought one for parts and fixed it Myself
PS. You can still use it just get a different Monitor. The Video out on the Samsung to the
Video in on a different Monitor IT WILL WORK
this is a bad sign that your back light or inverter is going bad in the display, when it goes black take a flash light and see if you can see the lcd displaying if so replace the backlight and or inverter and this will solve this issue and put you closer to a fixed monitor.
for my help today all I need is for you to leave a rating and feedback before you skip out, thanks
You could have a faulty inverter board or faulty CCFL lamp which can cause the screen to flash. Check out LCD Parts for service, parts and DIY info - click on this link to their WEB site. :- www.lcdparts.net
When you say it turns off, is the power light going out too?
If the power light is still lit when the screen blanks, it may be a faulty backlight inverter.
After 10 minutes elapse and the screen goes out, if you power it back on, do you get another 10 min, or does it last a much shorter time period, or not at all?
Your best bet is probably simply to buy a new monitor, and sell yours as "broken" on eBay, I'm sure someone out there capable of fixing it would be willing to pay pennies on the dollar to subsidize your replacement screen.
Okay, forgive me if I go over covered ground but reading the post, I only see your responses, not what was recommended. From everything I've seen the problem lies in one of the following areas.
The video cord is damaged. A bad cord will occasionally work since some current does flow to the machine but not enough to work all the time Check for any bent pins on the cord. If there are any bent pins, a new cord should solve your problem.
If the graphics driver has recently been updated, it's possible that the monitor can't handle the accelerated graphics. Most graphics drivers updates are tweaks that increase the performance of the graphics card. Although your computer and graphics card may be able to handle the enhancements, it's very possible your monitor can't. If this is the case, try restoring your old graphics drivers..
The video/graphics card is loose or poorly seated. This would explain why sometimes the montior works fine and other times it won't work at all. If you have onboard graphics built into the motherboard, this would not apply
Lastly, if none of the other solutions work: Since you are experiencing the same result on different computers, the problem lies with your monitor. A bad monitor will occasionally work until one day it quits altogether
I do hope this covers all the possibilities and answers your monitor question. Again I apologize for going over any covered ground but somehow someone latched onto your post and I had to filter out your problem from the other person's. Best of luck.
It sounds like the internal bulb in your monitor is going out. Some LCD monitors go through a slight warm-up period but it should not be 5-10 minutes. You may want to change your Power Saving settings to prevent from going into standby. Here's how:
Right-click in an open space on your desktop
Click the Screen Saver tab
Down at the bottom look for the Power settings
Change the Monitor Standby to NEVER
Its a powersupply problem in your LCD screen, i had the same thing happen to me- i found a site where you can fix it yourself- heres the link. http://computerguru365.blogspot.com/2008/01/fix-that-lcd-flat-panel-monitor.html I did it and it works.