Help with MC2250 - Test Circuit

[ekits]

Hi all,

I just came into possession of a nice MC2250. When I plug it in, the self test begins. The green left and right lights flash, when counting 7,6,5,4...stops at "4" then starts all over again in a never ending cycle. It never actually errors out and goes to red lights.

Any ideas? Can the self test system be disabled?

Thanks!

 

[damacman]

It sounds as if the amp requires service.

 

[ekits]

Thanks, I was hoping for a little more elaboration. I do appreciate your feedback though.

 

[c_dk]

+15 volt regulation issues.Time to bring it to a tech. I am sure you can buy a schematic from Mac parts.

 

[clinic-audio]

Hello

check if service bulletin of july 30th 1982 talk about that

 

[Gregory]

Hello

check if service bulletin of july 30th 1982 talk about that

As always, great advise c-a.