ARC Audio KS300.2

[imraneesa]

hi all,

The above mentines subject amp is completely dead. Found one mosfet short M3. I would like to know if anybody has schematics for this or similar amp. Thank you. Attaching picture.

 

[Perry Babin]

Have you emailed ARC for the diagram?

 

[imraneesa]

Yes I did. They told they will not supply schematics for their products.

 

[Perry Babin]

http://www.bcae1.com/temp/clarion - apx400-2Sch.pdf
http://www.bcae1.com/temp/clarion - dpx1001.2.pdf

The manufacturers can't make up their minds if they want to support their products or not. Both Zapco and ARC were providing diagrams but now they aren't.

In the diagrams above, the 4oo is similar but has no microcontroller like you amp. The 1000 has a microcontroller that may be the same as the one in your amp.