Question about PC Desktops

1 Answer

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.

Posted by on

  • 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.

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 16 Answers

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

No vga signal hp pavillion a6604f


have you just changed video card ?do the card get right amount of power .allways read manuals .if a old card change it.

Apr 02, 2013 | HEWLETT-PACKARD Pavilion A6604F...

1 Answer

HP Pavilion a 1245c won't boot black screen no beeps constant running fan


sound to me like a video problem. no beep codes, you hear the fan going so it must be posting. could you try with other monitor and or cable? is there power to monitor? reseat cable at both ends( monitor+ pc)

Nov 02, 2012 | HP Pavilion a1720n PC Desktop

1 Answer

Hp pavilion 6648c no signal to monitor


Make sure the cable is in good on the back of the computer and on the monitor. If the cables are in good, then either the monitor is bad or the video card is bad. Try using another monitor on the computer. If the other monitor gets a No Signal then the Video Card is bad. If the other monitor shows a display and works, then the original monitor is bad.

May 01, 2012 | HP Pavilion 6648C PC Desktop

1 Answer

My HP Pavilion 1903 monitor keeps going to sleep every time I turn it on


check in your monitor menu to ensure there is no energy save mode set. press the menu button on your monitor and check the settings. ensure that your pc also does not have an energy save setting set. e.g if the mouse or keyboard are not touched for a specific time e.g. 1 minute then switch off monitor to save power. make sure that such settings are not switched to on in your pc settings. if this is a new monitor and this was not a problem with your old monitor then suspect the monitor settings if the monitor and pc are both new. then suspect both settings. if possible test the monitor on a second pc or laptop to see if problem persists.

Dec 11, 2010 | PC Desktops

1 Answer

My hp pavillion a1540n won't boot up. The power button is on but no boot menu on the monitor. Monitor is blank


I suggest you check the Power Supply. Bad Power Supply, weak Voltage power rail.

1) ALL the LED lights use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts
3) A typical Processor uses 51 to 125 Watts. Depends on what Processor it is. (Older one's use less)

The HP Pavilion a1540n specifications state it uses an AMD Athlon X2 4200+, processor.

(2.0GHz. Dual Core. Built upon the Windsor Core. Uses a Socket AM2 processor socket)


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

Can use up to to 89 Watts,

http://en.wikipedia.org/wiki/List_of_AMD_Athlon_64_microprocessors#.22Windsor.22_.28F2_.26_F3.2C_90_nm.29

Enough power for the LED lights, and fans, but Not enough for the Processor.

No Processor operating, No computer.
No computer, No Signal to the monitor.
(Video signal)

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.

Jun 19, 2010 | PC Desktops

1 Answer

Monitor warning pc enter power saving mode


Are you using usb keyboard and muse. if so your usb ports are dead

Jun 16, 2009 | HP Pavilion a450n PC Desktop

1 Answer

"No Signal" on monitor after boot


hi try to use different slot on your motherboard see if that helps if not try different video card...if that didn't help it might be your motherboard that went bad

Aug 23, 2008 | HP Pavilion a400n (DQ173A#ABA) PC Desktop

1 Answer

Black screen not booting


check both your power and video connections to the monitor, sounds more like a monitor power issue.
if the connections appear ok, but screen still blank, try connecting a known good working monitor from somewhere else and see if it works with your pc, if it does, your original monitor is faulty, if it doesn't, you have a pc video issue.

Jan 14, 2008 | HP Pavilion a305w (DM181AR) PC Desktop

Not finding what you are looking for?
PC Desktops Logo

Related Topics:

138 people viewed this question

Ask a Question

Usually answered in minutes!

Top PC Desktops Experts

joecoolvette
joecoolvette

Level 3 Expert

5660 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18298 Answers

Are you a PC Desktop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...