Find someone that has an original manual. All ARC products shipped before the late 90's had circuit diagrams and a parts list in every manual.
I have seen the schematics for the SP10 and other ARC products on the web. Do a deep google search down many pages.
I have been to the factory and gotten copies of schematics for an SP9 MKIII (made in 1994), this year, when it was repaired.
I have seen the schematics for the SP10 and other ARC products on the web. Do a deep google search down many pages.
I have been to the factory and gotten copies of schematics for an SP9 MKIII (made in 1994), this year, when it was repaired.