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HP monitor blacking out

HP pavilion f1904 monitor will power on but when a signal is sent to it by either presing the menu it switches off the monitor. if it is hooked up to a pc and switched on, the image is displayed for 1 second then goes black.

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  • barret777 Mar 05, 2008

    thanks for the reply.



    I had already tried the problem solver from hp and it points to a bad panel or hardware that drives the panel is bad.



    It is not a pc issue as I have conected it to another pc and also trid both DVI and analogue cables with the same results. I have opened it up and re-soldered a few suspect joints but I need steering in the right direction, ie power inverter or screen driver board etc. later I will try and test components with a volt meter to see if I can find anything that way.



    I dont know much about PCB's but I will have a go as repairs will cost about £150 i can get a new one for less. it may be something that costs a few pence to replace.

  • barret777 Mar 05, 2008

    Also the monitor failed whilst in use, there were no system changes.

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What was the last thing you were able to do with it? Have you made any changes to the monitor's or your computer's settings and configuration before the problem came?

Firstly, assess whether the problem lies with the monitor or you pc. It's simple actually. Plug the monitor into another PC, or a DVD player or any other device that would accept the data connection to you PC. If the monitor works on other systems, then the problem lies with your PC. If this is the case, post here again if you need help to solve this.

If the monitor doesn't work, then the case is most probably that the internal chipset of the monitor itself has been damaged or isn't working anymore. The usual causes for this are moisture getting in the monitor, old age of the device, dropping/bumping/breaking/etc of the monitor. Best to have it sent to your dealer or the nearest qualified service center.

Also, follow this link if you'd like to have HP Support to help you. http://h10025.www1.hp.com/ewfrf/wc/solveCategory?lc=en&cc=uk&dlc=en&product=437870

Posted on Mar 05, 2008

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2) EACH fan uses 2 to 3 Watts
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HP Support > Pavilion a1540n desktop computer > Specifications,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00679533&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&product=3184140&lang=en

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The Power Supply used is an ATX style, and 300 Watts.

A computer only uses the power it needs, and No more.
If you install a Power Supply with more Wattage than the original, it will be fine.

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