Touchsmart 300-1025 has a blank screen......help!

has anyone had the blank screen issue? i have power but no visual. help! 

if power is on and screen is black blank then unplug all the cable then press and hold power for 10 second....connect power and chk if it boots up...if no and still same issue then open pc and reseat ( unplug and plug back in) memory(RAM) restart pc try if it works..if still same issue then remove both memory and try to turn on pc...if u get beep sound that means ur mother board is fine ..then chk with each and every ram one by one plugging in slot and boot up....chk if it works..WHEN U CONNECT RAM AND BOOT UR PC IT SHOULD NOT BEEP AT ALL.....if still same issue then get flash light and flash on screen chk if  you are able to read or see any thing on screen....if that is the case then its issue with lcd panel...
I work for hp touchsmart and i can try my level best to help you out..
what ever i post that would be my persnol opinion not HP's.

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