Question about Polyview V17E 17" LCD Flat Panel Monitor

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Monitor is blank

Hi, my LCD displays nothing. It is plugged to the power and has blue led turn on and green led on the power supply but no display, nothing, simply black screen. At first I thought it is because of the VGA, but then when I projected from laptop also nothing. Please help, so lost...

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Re: Monitor is blank

This looks like a power supply problem panel can be uncliped and the power supply module withdrawn. look for any bulge in the capacitors and unsolder replace them. With the same type and rating. Cheaper than replacing whole unit. In fact replace all capacitors. Not that hard. :)

Posted on Sep 01, 2008

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Re: Monitor is blank

You either have a bad inverter board in the unit or a lamp problem, also there are known issues with these units having bad capicitors in them. It is more fesable to replace it then repair it sorry :-(

Posted on Sep 15, 2007

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Display not working, power button LED turns on blue for 1 second and won't turn on again

Have you tried checking with another monitor. Meaning that if the second monitor does not come on then the problem is with your computers mother board. But if the monitor other monitor you check it with comes on then of course it is your monitor.

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I have the VE278Q which is connected by display port, every time i turn off my computer and then turn it back on the monitor can't be found, I have to unplug the display port cable, unplug the monitor,...

when you say monitor can't be found did you mean the monitor has no reactions when you turn on your pc?

here are some test you may need to do to know which part is faulty
1. Turn on your computer, did it display the monitor's logo on screen? When it does monitor is good, when only blank screen it could be the vga cable or the video card.
2. See if the led indication lit. When it lit to steady green, it's good signal is coming in from the video card. It should be followed by screen display. If no display it could be the backlight inverter lamp busted or faulty inverter board. When lit green then turns red, no signal coming from the video card. Check vga cable if fix properly to both monitor and video card. Or may need to reseat properly connection of video card from the motherboard. If no led indication lamp, then monitor is dead. Check ac power cord for continuity using multitester. Check power supply section in the monitor, replaced bulged or blown capacitor with exact value, this components were the first to get affected when lcd monitor failed o turn on.
3. When computer was turned on got display and then monitor turns black, go check the vga cable, Fix the connection properly or may need to replace it with new one.
4. When no signal appears or display blank screen after logo, then check video card. First remedy is to disconnect it the reseat properly to the motherboard. If this have no effect change your video card.

go follow these steps and let me know which is closely to your problem so I can give you a good advise.

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First place to check will be the power supply section, look for bad caps with bulging top first, post back what you see so we can guide you more, see example of failed monitors due to bad caps:


Feb 17, 2010 | Relisys RLT1720 17" LCD Monitor

1 Answer

Screen goes blank after a few seconds

Hi ,
The monitor flicker problem. The monitor when turn on will display image for couple of second then turn black. The monitor status led is still green. This will happen each time it is turn on. The symptom at appear to come from the inverter board.

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1 Answer

Monitor displays breifly then goes to blank screen

I am not familiar with your particular model, but I do know what the problem is.
The inverter that runs the lights behind the screen is faulty and needs to be repaired. The lights shine from the top and bottom and reflect outwards through the panel so you can see what is on the screen. If you start the computer up, then shine a bright light into the panel you will see an image on the screen, but very feintly.
This can be cheap, it can also be expensive depending on where you go to get it repaired. Call aorund to a few TV shops in your area to get a rough idea on prices.

Hope that helps =)

Apr 11, 2008 | Sceptre X7GNAGAV 17" LCD Monitor

1 Answer

Monitor Display Problem.

The first Polyview has a power supply problem (a short) and locks out the power until it is unplugged. You need to check the voltages inside the Monitor to determine which component/s are faulty. I hope you know electronics if not leave it to the repair shop because you have neither the skills or equipment to repair it. By the way I am not a monitor repair man but I do have 30 plus years in the electronics field.
The second monitor may have a broken wire in the cord that goes to your computer. Other internal components can cause the same simptoms your seeing. Good luck!

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1 Answer

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Same as before this sounds very similar to the problem that I had with my polyview v396 19" . Its a power supply problem unclip the panel withdraw the power supply it plugs in on its own seperate board. Look for capacitors that bulge and replace them in fact replace them all on tha board not that hard. Replace them with the same rating voltage and micro fards. Cheaper than relacing the whole panel, hope this helps. :)

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1 Answer

Monitor Display Problem.

Like most of these LCD monitors it is more than likely a PSU problem to do with the Electrolytic Capacitors, These in all probability will be faulty.. there are usually about 4 - 6 from 1000uF to 100uF replace ALL with same or better.

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