Find out what that fuse protects. Flasher, solenoid, etc.

Disconnect that connector from the board. Replace fuse. If it still blows you have a board issue, power to F7, if not, then you have an issue out in the game. Something shorted.

LTG : )™

I just took a look at the manual, and J7 is the Low Power Solenoids and Flash Lamps. There's no way to know which one(s) are pulling too much current, but like LTG says, try disconnecting both connectors first, replace the fuse, and make sure the fuse doesn't blow. If it doesn't, you could sacrifice one fuse and connect one of the two connectors to figure out whether it's one of the solenoids or if it's a flasher.

If you narrow down to flasher or solenoid. Open coin door, replace fuse. Go to Tests, pull out high power interlock on coin door. Step through flasher or coils one at a time until you pop the fuse.

Replace or fix the one that took out the fuse.

LTG : )™

I had the same thing in my Attack From Mars. I know its a Williams game and Ripleys is a Stern game. I checked everywhere and thought the problem of my machine blowing F7 fuse (Flashers for the UFO's and middle arrow in front of spaceship) was on the MPU board. Turns out that I had to replace the upper right UFO flasher on the playfield. Doing this repair I had to take out the ramp that is behind the UFO on the playfield. I discovered that the last time when I removed the ramp, I must have pinched the wire going to one of the switches either with a screw or the ramp itself during the last install of the ramp. In the end , it wasn't a problem with the MPU board but a wire was getting pinched causing the fuse to blow. The flashers worked great in test mode but when I went to Multi-Ball, the flashers slowly dimmed and F7 blew. I posted the story on my blog with pics. Hopefully you may be having the same thing on your Ripleys. Good Luck

http://pinballsupernova.wordpress.com/2014/12/24/attack-from-mars-repair-f107-fuse-keeps-blowing/