The 1 amp fuse under the play field blowing indicates a solenoid short (not the flippers) so focus on that. The coin door solenoid could be the problem - look for anything touching the tabs that shouldn't. These docs helped me understand how to troubleshoot.
http://pinwiki.com/wiki/index.php?title=Bally/Stern
http://techniek.flipperwinkel.nl/ballyss/rep/index1.htm