Question about MegaVision MV220 Monitor

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My monitor goes black/blang in a split second of start up I tried turning on/off ,and even putting it on other PC's same problem (hyvision MV220)

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There maybe a short somewhere in the circuitry..
it could be in the power cord. the video cable.. or the power supply is failing..
cheaper to replace rather than trying to fix it.

Posted on Sep 12, 2009

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I try to power up the hyvision mv220 monitor and my display shows dim for a second then goes to blank.


Look for bad DC filter caps first, then the backlight inverter circuits.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Aug 22, 2010 | MegaVision MV220 Monitor

1 Answer

My HyVision LCD TV Picture disappears after a few seconds


It seems that the "backlight" has gone bad. "Backlight" is the device that allows to see the picture in an LCD TV, when they are about to go bad the symptom that you describe is very usual. It depends on the tv manufacturers and model to expect how long the "backlight" is going to last in a tv.You can shop around for a replacement part and try to do it yourself or take it to an especialized technician. Good luck..

Jan 03, 2010 | MegaVision Hyvision Megavision 191 19"...

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I have had the Hyvision MV220 monitor for 2 years now. I powered it off last night and it will not power back on this morning. There's a clear dot on the power supply and I'm not sure if it should be lit...


The light should be lit on the power supply when its plugged into the wall. Sounds to me like the power supply might be bad. Plug it into another working outlet and if it still doesn't light up then the power supply is bad.

If it lights up then you know the outlet is bad.

Dec 10, 2009 | MegaVision MV220 Monitor

1 Answer

My monitor showes for a split second then goes black


First, can you attach another monitor to the computer to check to see if it works?

If it does, then your monitor is going bad. Possibly the power supply.
If a second monitor acts the same way, then it's your video card.

Dec 10, 2009 | Computers & Internet

1 Answer

My screen goes black after startup


Try a different monitor, I am sure this sounds overly simplistic to you but, I have seen in my customers have just that, a bad monitor.

If another monitor does the same thing, then you should try another video card. If the video in on the motherboard, there should be a AGP, PCI-e, or an empty PCI slot to put a video card in.

Aug 08, 2009 | HP Computers & Internet

1 Answer

The l226wtq goes black


Try shining a flashlight on the screen, or without the flashlight, try to see if you can distinguish anything on the screen at all, if you do, the backlight is dead, or the monitor has an internal most likely unfixable problem.

May 01, 2009 | Computers & Internet

1 Answer

Picture won't stay on.


The problem is with the backlight inverter driver. It thinks that one of the CFL lamps is bad. I fixed mine by opening it up and cutting a track in the inverter board (with the power off!!). But you need to be a bit of a geek to undertake this fix. I you want more details email me at lmann1952@yahoo.com

Jul 24, 2008 | MegaVision Hyvision MV177 17" LCD Monitor

1 Answer

Black screen


How old is the computer? Make sure that the power light comes onto the monitor when you plug it in, should be orange and then turn green when video card syncs with it when PC is turned on. If you are getting black screen when PC is powered on:
1. Bad video card
2. Bad video cable
3. Bad monitor
1Solution: Try using a different monitor attached to this same PC and see if it works. If it does, then its the monitor, its cable, or its power supply. If it doesn't work, then its the video card or the video cable coming from monitor.

Nov 24, 2007 | Daewoo L700C 17" Flat Panel LCD Monitor

1 Answer

Screen turns black


problem with the inverter chek it

Mar 18, 2007 | Daewoo L700C 17" Flat Panel LCD Monitor

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