Question about Westinghouse L1975NW Monitor

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Westinghouse L1975NW monitor problem

Just opened my new monitor, had it going and was trying to get the screen to fit better and was pushing all kinds of buttons and hit the no signal input and now there is no picture at all and I can't get it off the no signal input. The reason I bought a monitor is because the backlight on my laptop died and I thought I'd hook up a monitor until I could figure out what new laptop I wanted to buy. Help me please with the "no signal input" problem.

Posted by cganem on

  • Anonymous Aug 13, 2008

    i had the same problem, had to disconnect my radeon graphics card, power up with the integrated one, got video, then reinstalled my graphics card and hooked up the new monitor. works okay now after many frustraing hours. Think you could maybe try powering up and hitting F1 to go to set up before the windows startup and check the video settings.

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5 Related Answers

skotkolr

Scott Hill

  • 558 Answers

SOURCE: Huge Voltage Spike Blew the Monitor Board

most USA monitor boards are set for 120 volt at 60 cycles you are using 240 at 50 cycles in India and most moniotrs are not changeable like a computers power supply, so no you can't buy another board here and expect it to work, unless you have an electric transformerconverter to convert 240 to 120, and change the cycles then it will work and if you need a board you can ebay the monitor and ask one of the sellers if they have access to internal boards for replaccement. Now even if you buy a board here in the us, that doesnt mean you have a working lcd monitor, most likely you have done massive damage to the transistors in the lcd panel iteself I would be surprised if you did not have 100 dead pixels if it even worked at all
I would have it repaired there 9india) the cost is cheaper as the boards come from Taiwan...less distance to travel you see?
That is the best I can do for you have a great holiday season.

Posted on Dec 03, 2008

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Rickajho

  • 2 Answers

SOURCE: audio and picture quit working on white westinghouse lcm-17v8

If you haven't figured it out yet through a web search, Westinghouse monitoris have problems with blown caps on the power supply board. If you are lucky the problem is minimal and won't require more than replacement of the caps. You won't know until/unless you open the case and inspect the power supply board.

Posted on Mar 07, 2009

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Anonymous

  • 152 Answers

SOURCE: buttons on the bottom of the westinghouse monitor

momof3boysn1, Did you try removing the plug from the outlet strip and then plug monitor back in and turn it back on? Usually the button that looks like an asterisk with a small circle dead center will be the brightness control. get back to me if this won't help. I'm louie12fix on fixya or [email protected] aol.com

Posted on Apr 05, 2009

Geekman

Chris Hingee

  • 32281 Answers

SOURCE: DVI-D cable not working with Westinghouse L1975NW...

If the monitor has two video inputs - a DVI-D and a DSub VGA then the monitor needs to be switched to the DVI-D video input.

Posted on Jan 26, 2010

westytech

vidal chavez

  • 120 Answers

SOURCE: Sound for Westinghouse L1975NW Monitor does not

Hello, I wuld love to help you out a bit more but I need some more information so we can troubleshoot. You can contact me at [email protected] so I can further assit you.

Posted on Jan 28, 2010

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There is a couple of possibilities and things to eliminate.
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If you are using this as a second monitor connected to a laptop you will have to hit the corresponding function key on the top row of your keypad, F4 or ?...., to open the port to avail the signal.
On a mechanical level at the monitor depress the Menu button and try a few sizing adjustments to bring the picture back to shape.
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I don't know your model so I'll try to guide you without that. Push the OK button and scroll using the up - down of the monitor buttons to go to reset. In case of asking yes - no push ok again and choose yes. Press ok again and exit.

In case of a problem or clarification, don't hesitate to post me a reply before rejecting my answer.
If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

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Cig smoke wouldnt effect the buttons, the control board on the monitor is probably bad, this is what tells the monitor to display the menu, make changes, etc... If that has gone bad, pushing buttons would have no effect. Youre probably better off buying a new monitor.

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This should be an (LCD) screen. They are the ones that usually have this kind of problem. You will need to take it to have it checked if the problem is the VGA signal cable leading to the monitor. They will check if it is properly connected or has gone bad. It is very unlikely that the screen is bad. When this VGA signal cable goes bad it could result in a totally blank screen.

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NO SIGNAL PROBLEM


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DVI won't work


WOW! I have that monitor too on one of my systems!

Strange thing is it HATES the SVGA connection ~ but works FINE with the DVI... wish I could tell you why?

I've tried a array of 'new drivers' but none help... STRANGE thing too is OTHER monitors work FINE (with the VGA port) so I'm fairly confident it's not that...

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15in dell monitor model e151fpb


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Cause of power going off: There is a bad 1000uF, 16V cap on the power supply board.

Solution: Replace cap. Radio Shack sells a 1000uF, 35V cap for $2. This will work.

Why did the cap go bad? The cap is too close to a heat sink and over heated.

What does this cap do? This cap sends a signal to an IC which keeps the monitor 'on' after the power switch is pushed. When the cap is weak, AC ripple voltage is applied to the IC and it sends a signal to shut the monitor off.

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The two plastic pieces snap together and must be pried apart with a flat screw driver.

After removing the stand, you need to insert a flat screw driver at the bottom of the screen where two slots are located. Then work the screw driver around until the two plastic pieces are separated.

Remove the cover plate and unscrew the push button circuit board.

Unplug the monitor cords from the driver board and remove the screen.

Unscrew the mounting screws from the power supply board and remove.

You will need to pinch the plastic support in the middle of the board to remove.

Cap Replacement:

Cap is located near a copper heat sink and the value will be on the side of the cap. It will be bulged up on the top. You will see burn marks on the board surrounding the cap. Unsolder the cap.

Install the new cap and solder. Make sure you connect + of the cap to + marked on the board.

Be careful not to solder across joints.

Keep leads long so you can bend the cap as far away from the heat sink as possible.

Reassemble monitor and turn on.

This should solve the problem.

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