Pavillion dv9730us no boot, no video display, starts to boot, shuts off after a few seconds

   Pavillion dv9730us does not boot, no video display, (tried external monitor while toggling F4, to no avail...)
Tried the troubleshooting proceedure - (hard reset: pulled battery, discharged "start" button , connected AC power,
no difference. Repeated the hard reset after pulling the memory modules, and re-installed one at a time in every possible combination, with no change.
   The laptop attempts to start up, with lights and fan, but only for a few seconds, then shuts off, and repeats this process.
I noticed that the lights stay on if I press "esc" for some reason, but the fan does not stay turning. Other than this, there is no change, (no screen, no beeps, etc.)
   Any insight here would be greatly appreciated!

Thank you for your informative response. This confirms what I suspected, and it corroborates what I was told by a friend who had the same model, with a similar dilema. The repair price tag seems feasible enough, given that the machine's features are contemporary enough to make it worthwhile to give it a try. I would be greatful for any details on the specified repair options, and if there are any "workarounds" to help prevent such a meltdown in the future, assuming such repairs can reasonably be achieved. Thanks again. (Whatever's right ain't wrong!)

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Powerbook starts up. then shuts down after a few seconds

Help!
My powerbook starts fine boots the system. gets as far as when the system shows the right hand dropdown menus then blacks out. some times the screen flickers first. It then will not start again unless I reset the PMU. then It starts fine only to repeat the problem.
I have tried it with another adapter, and its the same.
I've tried several PMU resets, and pram reset. unplugged it for several hours with he battery out programmmers button etc. But the problem persists.
Any suggestions are welcome

Help!
My powerbook starts fine boots the system. gets as
far as when the system shows the right hand dropdown
menus then blacks out. some times the screen flickers
first. It then will not start again unless I reset
the PMU. then It starts fine only to repeat the
problem.
I have tried it with another adapter, and its the
same.
I've tried several PMU resets, and pram reset.
unplugged it for several hours with he battery out
programmmers button etc. But the problem persists.
Any suggestions at all are welcome
further to my first description, the powerbook will run start up of the battery the go to permanent sleep after a few minutes.
also and wierdly, its will run ok with the power plugged in for as long as the battery charge lasts. Then it does something similar to sleep. but without thesleep light.
I'm am really scratching my head here.
Any feedback would be gratefully recieved

Songs have now randomly started skipping on my itunes after a few seconds

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When I start iPhoto it opens up but shut down after a few seconds. Any advice please?

When I start iPhoto it opens up but shut down after a few seconds.
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Try this: launch iPhoto with the Option key held down and create a new, test library. Import some photos and test to see if the same problem persists. If that does the same or you can't create a new library try the following:
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your
User/Home/Library/ Preferences folder.
2 - delete iPhoto's cache file, Cache.db, that is located in your
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or with Lion and Mt. Lion from the User/Library/Containers/com.apple.iPhoto/
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3 - launch iPhoto and try again.
NOTE 1: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding down the Option key when launching iPhoto. You'll also have to reset the iPhoto's various preferences.
NOTE 2: In Lion and Mountain Lion the Library folder is now invisible. To make it permanently visible enter the following in the Terminal application window: chflags nohidden ~/Library and hit the Enter button - 10.7: Un-hide the User Library folder.
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Videos cut off after a few seconds (MacBook Air)

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Hi there
My retina macbook keeps shutting down after booting and rebooting by its own a minute later. No error message is displayed or anything like it, it just magically shuts down.
It had been working fine until now but it seems to be going crazy for whatever reason...
When it shuts down by itself, I can't turn it on myself. It does it on its own even if the lid is closed and then shuts down again after about 30 seconds.
This only happens when it's connected to a power source (it doesn't even start when it's not).
I have tried to reset the PRAM without success.
The only time the issue doesn't happen is when I do a Safe Boot.
Can anybody tell me what is up with my Macbook (I really need it for work AND school).
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Have you done a SMC reset?
http://support.apple.com/en-us/HT201295
Run an Apple Hardware Test:
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IMac starts and goes off after a few seconds

My iMac turns on and after doing the usual sound goes OFF! Any advise?

Hi,
Check for Login Items Open System Preferences/Accounts then select the Login Items tab. Delete any files or apps you have listed there. And go to /Library/Startup Items. Move any files in the Startup Items folder to the Trash.
If login items aren't the issue, probably a good time to boot from your install disc, run Disk Utility to verify and if necessary, repair any errors on the startup disk.
Insert your install disk and Restart, holding down the "C" key until grey Apple appears.
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(In Mac OS X 10.4 or later, you must select your language first from the installer menu)
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(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)
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If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
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I have the newest version, but when I started it it goes down after a few seconds (half minute) and I can't do anything anymore, not even close it. What happens?

That is all, no more details possible. I tried also uninstall Firefox and install the newest version again, but it did not help. I even have to stop Firefox with the Taskmanager.
As a result I am noew using Google Chrome (and that is not a good solution I think).
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The previous version worked well with me.

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My iPad keeps shutting down after a few seconds of use. just started happening. fully charged. help?

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You can try this:
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Hi all,
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Last time I had it running I pulled my iPod, beacause the computer did't see it, the next thing I saw on screen was the message to hold the power button for 5 to restart, after that I got the problem described above.
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Hi, I don't know how fast it shuts down, but...
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http://support.apple.com/kb/HT1939
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set-defaults (press Enter)
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The video on the Camera app seems to turn off after a few min...I am trying to do a 20 min video. What am I doing wrong please?

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My macbook pro keeps booting up, then after a few seconds, goes back to the sign in page. This happened after I was doing software updates and my computer restarted in the middle of an update. Help! Thanks.

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Pavillion dv9730us no boot, no video display, starts to boot, shuts off after a few seconds

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