Cyber Acoustics CA-3550 Computer Speakers "amplifier transformer buzz" Questions

...you check the supply output voltage with and without load if low or no output voltage replace supply if you don't get the proper transformer rewind it also check power amplifier section short ...

...transformer and possibly check to see if the rectification circuit is damaged too, and the amplifier too. Good luck did you manage to fix this problem ... i am afraid i might have made the same ...