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

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Green led light flashing on 700p proview flat panel and no picture

Hello, i have a proview 17in flat panel computer monitor model #700p that will not show anything, and the green power led indicator is on but flashing slowly. can you guys please help me. thanks I have the exact same problem.
The green light flashes slowly adn there is no disply.

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  • Milt159 Mar 25, 2009

    I have the same problem, does anyone know what I should do?

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I have a similar problem.
Switching the screen off (front panel button) and on again after waiting a few seconds fixes it.
This is a recent problem, so I'm expecting it to get worse and worse until one day!!!!!!

Posted on Feb 10, 2009

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Green led light flashing on 700p proview flat panel and no picture? This trouble maybe power supply or inverter boards is defective.
first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those parts
if you have any question,please let us know email:service@wisiny.com.thanks,we sincerely hope we can help you!
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Posted on Jan 12, 2015

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Posted on Jan 02, 2017

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How can i download driver for proview 700P?


you can download it from a website called driver guide. I have downloaded it and confirmed no viruses and to be the proper driver. Click here for the proview 700p driver
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Look at the power supply first, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
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You do NOT need a driver. Your monitor is broken. The high voltage power supply that provides power to light the CCFL cold cathode fluorescent lights is broken. The most common problem is that the 470uF 25V capacitors on the power supply circuit board are bad. Bad Caps have a swollen and sometimes leaky top. There are 6 capacitors that cost about 50 cents apiece from www.partsexpress.com . Buy high temperature replacement capacitors rated at 105C. If you can't de-solder and resolder have some 14 year old kid do it for you.

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Green led light flashing on 700p proview flat panel and no picture


Any high switching power supply of the same voltage and amperage rating will work for you. You may have to cut the end off of your old one and wire it to the new one to make it work but don't waste your money buying a specific power supply.
Good Luck!

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Green led light flashing on 700p proview flat panel and no picture


Usually when the power light flashes and the screen remains blank and unlit, your power board is in fact malfunctioning. This is not always the case, as the problem can sometimes reside in the input or inverter boards. I would first recommend that you feel comfortable with opening up your screen and looking at components. It can be a little overwhelming at first. BEFORE PROCEEDING, UNPLUG POWER TO MONITOR. If inclined to check, carefully open the casing around your screen. I have not worked on your particular model, but some are easier to open than others.

Once opened, you need to gain access to the circuit boards. Sometimes they are not protected by metal, other times they are completely encompassed. The flashing power light usually indicates that a capacitor(s) is(are) malfunctioning. To see if this is the issue, locate the power board (usually the one with larger-size components) and look for any capacitors having bubbled or raised tops and/or oozing a brownish liquid. If not on the power board, look elsewhere for the same symptom.

PLEASE BE CAREFUL!!! If you have recently had your monitor plugged in, the larger capacitors can still carry a charge. If you cross the leads of a capacitor while it carries a charge, it will discharge. It won't hurt any other components, but if you cross the leads with something that is in direct contact with yourself, you can get quite a jolt! There is usually a large voltage capacitor (normally just one) on the power board of these screens. I tested one with a multimeter after immediately unplugging it, and it still held a 166V charge! So please, do this with caution.

If a bad capacitor has been found, simply remove the old one and solder a new one in its place!

Nov 26, 2007 | Computers & Internet

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