My Book 500GB making continous beeping sounds on power up

Upon power up, our My Book (WD5000I032-001) makes three beeping tones in a cyclical period, two low tones and one high tone over a 1.5 second period, then repeats the pattern agin 4 more times.  Bad My case electronics, bad PS or dead HD??

ROn

Hi there, I think that the best way to know would be to try another power adapter if possible…

Nope. Took the HDD out of case and connected it to an external docking unit. Same beep sequence. Think its a stuck spindle or forzen motor. Off to the labs it goes as I need the data on it. Thanks