Question about Soyo KT400 Dragon Ultra (SY-A30A0) PC Desktop

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My pcu is working but there's nothing on the monitor, except black screen.

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  • Soyo Master
  • 4,924 Answers

If this is happens after the actually windows operation system is booted ...and until than you can see the devices and the windows logo...its a matter of the videocard ..you messed around with the settings and needs to be reinstalled ..but you will not be able but reinstalling the operation system cause you can see anything ...just choose to install in the same folder without formatting the C partition ...in this way you will just install the windows, but will ask you for drivers ..if you choose repair ...its easier ..but you have the chance to get the drivers like they are and be the same thing ...remember ...if there is anything like being able to boot on bios..if not ...and you guess that the cpu is working cause you hear the fans ...it another thing ....
if you start it ..and just doesnt see anything on ...but the fans (coolers) working and a clicking sound......and you do not get to see the devices ....you have to open it and remove the bios battery ..and verify the Ram memory too...cause the Ram is the first listed ..and when there is something wrong with the ram memory ....nothing go paste this.... also just check the video card to be well plugged in the slot .....
if you are able to see the devices when you boot...I mean something written on the screen ... you just have to reinstall the Operation system ..or repair from the disk
if the videocard failled..remove it and plug into the on board video vga exit ... this way you can verify if this is to blame ...it is the vertical one ...paralel with the printer ...and it fits ....:D is an anti-stupid plug ...as I like to say ...with screws... good luck ...I hope is nothing really burn but just a miss function ...let me know what you have done...

Posted on Dec 12, 2009

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  • Master
  • 4,044 Answers

Double check the Video card to make sure it is correctly installed, connected and that all Ram is properly installed. If you aren't hearing any beeps at start up double check the the CPU it actually seated and Bios Chip is seated. If you are hearing Post then you have another problem on the board.

Posted on Dec 12, 2009

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Posted on Jan 02, 2017

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1 Answer

Hi, I have a T400 and when I trun it on the Thinkpad black screen appears and does not change. Please can you help


Does it seem like the laptop is running except the display is black? Do you think it booted all the way except the screen is black? Do you hear fans running, disk drive spinning?

Shine a flashlight on the dark screen to see if you barelysee the icons on the desktop. If so, then the LCD Inverter is bad.

Plug in an external monitor and see if the display shows up on it. It can beany kind of monitor even the old big fat crt monitors as long as it has a vgacable to connect to your computer's vga port. If so that proves yourvideo card is ok. The video will show on most systems when you rebootwithout you having to do anything. Some systems will require you to hit the FN(Function key) + F1 thru F12. Hold down the FN key then hit the correctkey for displaying on the monitor (F1 thru F12). The correct key willnormally have CRT/LCD on it or it will have the icon of a display.

If you see no icons by shinning a flash light and the external monitor works,then your screen is bad. If you see no icons by shinning the flash lightand nothing shows on the external monitor, then most likely your video card isbad.

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Very doubtful. Either you have a defective or corrupt display driver, or possibly a malware infection. Is that a laptop or notebook computer? If so, is there a VGA port for an external monitor? If do, try using a known good external monitor.

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The life counter of the black pcu has run out. It had nothing to do with replacing the toner. The replace pcu message comes on at around 50k on this model I think.

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the machine will work but copy quality will reduce and the error will be there.
replacing the cartridge has nothing to do with this error.

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I had the same exact problem.


First power up the computer then press F8 key then if you see safe mode and other menu then enter in enable vga mode then go to control panel and change screen resolution to 1024*768.

If you can;t see safe mode and other menu.
Then open the cpu cabinet then refix RAM memory .
clean dust from circuit and RAM.
Pull cmos cell from motherbord for 15 minutes so all bios settings are defaults.
Then check.

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I need a manual for a rich aficio 1515 mf cannot figure how to change photoconductor


The PCU is removed by opening front door and right side door.Black PCU will have one electrical connector on front, very visible, that needs to be unplugged with machine turned off, push a little black plastic guide on left side of PCU and it should pull forward and come all the way out. Putting the new one in is reversed, except there will be a plastic strip that has to be pulled off before installation. Good luck, please rate this. Thanks

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Monitor or pcu problem


It appears that your graphics card is defective. If the monitor works on your laptop and reinserting the graphics card did not help, I would suspect the card itself.

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Does the MAG LT-456s require drivers


Perhaps your screen resolution is set too high. Try using a different display to set your resolution to 800x600, then attach the MAG display. Adjust from there once it is working...

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1 Answer

Dell inspiron 8500 notebook monitor died


replace screen easy to pop put and in buy the part u need on ebay ok when your ready ill walk u throw it all mark me as fix ya then add me to yahoo mssg nick_helpap ok

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