Question about NEC MultiSync LCD1700V 17" Flat Panel LCD Monitor

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Monitor have power but no picture, when i turn on computer few second stay picture then picture goes off and power light stay green.

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Re: Monitor have power but no picture, when i turn on...

Exactly what the one in my shop is doing and it turned out to be bad HV board in monitor. Gary(Honkity Hank)

Posted on Sep 18, 2007

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Picture won't display after a few seconds

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the monitor may be losing the back lite. take a flash light or bright light and shine it at the screen after it goes black. can you see a faint picture? if so the back lite has failed. usually the cost of replacement exceeds the cost of a new monitor but there are a couple of web sites that detail the replacement of the "ccfl" cold cathode flouresecent light.

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The picture board on your monitor is bad, since it goes off after few seconds and the power led or button is on, it means the picture board of your monitor has developed fault.

The best thing for you to do now is to take the monitor to a local repairer or service center within your vicinity to help with the replacement of the picture board because the fault is not something you can fix yourself, in order not to complicate issues.

Take care.

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Monitor stopped working...checked all connections...light won't stay on green. bought a new monitor to replace it and that monitor says "no signal". is this a problem with the dell computer and not the...

Your monitor is going into power saving mode. When it receives no video signal from the computer, it will stay powered for a few seconds before giving up and presuming the PC is off hence why it stays green for a while, then goes orange.

The problem is with your PC not the monitor(s)

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It's probably bad capacitors on the power supply board. These monitors are notorious for having the electrolytic capacitors blow out; cheap components! I would suggest replacing the two 1000 mfd capacitors and the three 220 mfd capacitors with 35 volt components from Radio Shack. That fixed one of my LCM-19V7s but not a second one which seems to have some other power supply problem.

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It sounds like the picture tube in the monitor has burned out. Time to replace.

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A reddish picture is the classic symptom of worn out backlight bulbs.
Sensor circuits usually shut down the power to the bulbs in a second or so.
Monitor Mike.

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2 Answers

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Beautiful screen, lasts about for a few minutes, goes black. Power button still green. If I turn it off, and then back on, it works again for a while. Any ideas?

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3 Answers


does it display a picture for a few seconds before it goes blank. or do you not get any picture?. i think i might know what it is but if you could let me know :-) All the best John

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