Dell UltraSharp 1901FP 19" Flat Panel LCD Monitor Logo

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Posted on Nov 30, 2009
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We r using dell lcd 1901fp when we power on it displays for 2 sec and then disply off but power led shows on, again we poweroff and on it it shows for two sec again disply disapper kindly suggest exact position to check

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Bud Martin

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  • Master 11,361 Answers
  • Posted on Nov 30, 2009
Bud Martin
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Joined: Oct 24, 2009
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Look at the power supply, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

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Hi Anand,

You need to check your power options settings and modify it , so that your monitor does not turn off automatically.


If you are using windows xp , go in control panel and then there would be an icon for power options , double click the power options and then you would find settings which read turn off monitor , turn off hard disk etc... select the turn off monitor to never mode or as per your convenience and you would have your problem solved.

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We r using dell lcd 1901fp when we power on it displays for 2 sec and then disply off but power led shows on, again we poweroff and on it it shows for two sec again disply disapper kindly suggest exact...

You could have an inverter board problem. The inverter supplies high voltage to the CCFL lamp which provides the back-lighting.
For service. parts and DIY info check out LCD Parts - click in this link to their WEB site : -
www.lcdparts.net
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My lcd model # 1901FP when power on dispaly on after 2sec diplay off at this time power led show green .again power on /off button off and on the same (power on dispaly on after 2sec diplay off at this...

Hi, This is a common problem with LCD monitors and is usually a result of blown capacitors or it could be a failed backlight as the inverter will shut down if it detects this. You will need to open up your monitor and you will be able to see if any capacitors have "blown" but failure of a lot of components will cause this symptom.
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No display but power led is on

sounds like a video card problem in your pc. If you are using the onboard video output on your motherboard, you probably need a new one. If you are using a card that has been added to the board in a slot, try your onboard output (looks the same)
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DELL LCD 1901FP PlZ Find IC Number

The 8 pin IC is UC3843A, SMPS controller. The 14 pin IC is TEA1533AT.
Monitor Mike
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Dell 1901fp power board problem

Sounds like a loose connection or broken solder point. It could also be a bad inverter or CCFL.
Have it serviced or replaced.

RDO

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The problem can be with your browser missing the programs that support visualisation of pictures. Try installing micromedia flash player and any prompts that you may get from the visited websites
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Dell 1901FP monitor

It is probably either a CCFL back light issue inside the LCD or a set of capacitors on the inverter/power supply board.
Would you be willing to part with it ?
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