Sundown sfb-8000D

[thebasser]

Hello DIY techs.
I have a Sundown sfb-8000D and need help identifying mosfets with markings D1 and the drive IC 9.
thanks

 

[Perry Babin]

At one time, Sundown would offer limited support. Contact them to see if they can/will help.

 

[laluns]

you should use IRS20957.

 

[laluns]

check your PM

 

[laluns]

also please confirm voltage on rail caps