HT1338 Hi I have an Imac with I5 processor.It was working perfectly and i didnt use for about 2 months.The AC was unpluged.Then week ago when i want to start the Imac, it didnt start.But if i keep holding or pressing the power button for some times then i

Hi I have an Imac I5 21.5 inch.It was working perfectly.Then i didnt use that for about 2 months. Week ago when i want to start the Imac ,it didnt start.
When press and hold or keep on pressing the power button then i hear the fans are working and i get a continuous beep( but low freqency tone).
But screen does not turn on.Please help me to rectify this problem.Best Regards. By the way I am an electronic technician.So if there are any technical things to be done, Pls let me know.I can do it my self.

Hey terremo,
Thanks for the question. From the information you provided, it sounds like the iMac is successfully turning on, however video is not displayed. These symptoms can usually be isolated further by the troubleshooting steps in this article:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Thanks,
Matt M.

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