Prophet 5 Rev 3 Please Help Me

[Soulracing]

I'm new to the forum, it's a pleasure to be here, unfortunately I come with a problem, my Prophet Rev 3 or maybe Rev 2 late, has started making this noise and it doesn't work, any ideas or suggestions please?
I leave a link to the video https://www.youtube.com/shorts/2TTbs9Ri1kM

If I'm doing something wrong, please let the moderators correct me, thanks

[HockeBocke]

It's a Rev.3   
Strange sound ...
Maybe needs a new battery 
Or new capacitors and a new power supply.

Take it to a tech 


Cheers ! 

[Soulracing]

thanks for your reply, I try to find a way because I want to repair it myself, if I can obviously, I want to focus if possible where xoemnzar, I'll start with the transformers

[Soulracing]

can anyone else give me a clue? Thank you

[HockeBocke]

I'm no tech so I'm guessing here ....   
This happens when you try to start up your P-5 right?
At startup the microprocessor want to get a "all systems go" signal from all the VCO's
( initial tuning ? ) and if one VCO malfunctions of one reason or another (broken, wrong voltage from CPU ?)
the microprocessor wont start the synth ....  So it just get stuck halfway trough startup process ... Trying and trying
over and over to start ......  Hence that strange sound ?   

This may be handy for you or your tech ( if you don't have it already )  :
https://medias.audiofanzine.com/files/sequentialcircuitsprophet-5servicemanual-text-470674.pdf

But as I said in previous post ; take it to a tech.


Cheers !

[Soulracing]

Thank you very much, I'll look at the manual to see where I should start!!