Question about Compaq Presario CQ56-115DX Laptop

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Turned the computer on but the screen is not getting power..its black

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Replace inverter

Posted on Aug 24, 2014

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1 Answer

Laptop black screen


You turned on your laptop and horrors upon horrors, the screen is BLACK! You see that the laptop has power but besides that nothing is happening.
I want you to know that there is a very good chance you can get out of this situation quickly and without any cost. This fix works on all brands of laptops:


• 1) TAKE OUT YOUR LAPTOP BATTERY
• 2) REMOVE YOUR AC ADAPTOR CORD, that's the wall power, remove it.
• 3) NOW HOLD DOWN THE POWER BUTTON FOR 30 SECONDS
That will drain any static electricity that has built up on your laptop system board and many times fixes the problem of a black screen.
After the 30 seconds re-connect your laptop to the wall power and hit the power button normally and see if the laptop comes back up.
Replace your battery.
or if wont start
Here are the fix steps:
1. Turn off your computer
2. Disconnect every wire from it (including power)
3. Disconnect the battery from the bottom of the computer.
There will be two tabs labeled 1 and 2.
4. Re-plug in the power wire. (the battery should not be in the computer)
5. Turn on the power. The screen will work. Choose start windows normally. (if you get that screen)
6. Go to Control Panel -> (Mobile PC) -> Power Options -> Under Balanced choose change plan settings
7. Choose Change advanced power settings
8. Find Processor power management and change the minimum processor state from 5% to 100% for each On battery and Plugged in.
9. Click Apply then OK
10. Shut down you computer.
11. Disconnect the power cord.
12. Re-install the battery on the bottom of the laptop, plug in the power cord, and restart the computer.

Aug 08, 2013 | Computers & Internet

1 Answer

What happens if your computer's screen turns black


Try restarting the computer - turn off from the power .. only if you got a blue screen and computer goes off - that will be a problem
but black screen could be a monitor or power issue ..
try to restart and check whether you get the picture or sound or both

Oct 01, 2010 | Computers & Internet

1 Answer

Black Screen!


perform power drain. take out the battery and unplug the power adapter. press and hold the power button for 30 secs. put the battery back in and plug in the power adapter then turn on the computer.

May 03, 2010 | Computers & Internet

2 Answers

Screen stays either black or white


Replace the entire DAC board (board with power suplly going into it) for easiest solution.

Aug 19, 2009 | ViewSonic VA703mb Monitor

1 Answer

Gateway monitor FPD1975W won't display


Same problem - unplug both computer and monitor - hold power button for monitor for 15-30 seconds...then power it back on and then power on the computer. Seems from other sites there is a power issue with the monitor - this worked for me.

May 23, 2009 | Gateway FPD1975W 19" LCD Monitor

1 Answer

My screen randomly blacks out.


the best method to overcome this problem is format the computer!!! i too used to get the same problem!!i did format it...!

Dec 30, 2008 | Microsoft Windows XP Professional

1 Answer

Black screen


how can u fix this black screen? the green power light is on, shows vista for a bit then turns black and stays black. any solutions or do i have to send it back?

Apr 03, 2008 | Microsoft HannsG HU171D 17" LCD Monitor

3 Answers

Dell monitor


Monitor Help CH000315, Black borders on side of screen. CH000316, Dead or black pixels. CH000403, Macintosh and/or PC monitor compatibility.
Black borders on side of screen. Additional information about what causes black borders on computer displays.

Good Luck, Please dont for get to Vote/Thank You.

Dec 19, 2007 | Samsung SyncMaster 712N 17" Flat Panel LCD...

1 Answer

Black screen


How old is the computer? Make sure that the power light comes onto the monitor when you plug it in, should be orange and then turn green when video card syncs with it when PC is turned on. If you are getting black screen when PC is powered on:
1. Bad video card
2. Bad video cable
3. Bad monitor
1Solution: Try using a different monitor attached to this same PC and see if it works. If it does, then its the monitor, its cable, or its power supply. If it doesn't work, then its the video card or the video cable coming from monitor.

Nov 24, 2007 | Daewoo L700C 17" Flat Panel LCD Monitor

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