I've had a Firepower machine for about 4 months and the game seemed to be running fine. I got my hands on a CPR playfield so I decided to do a swap a few weeks ago. When it was done I fired it up it and it went into attract mode. Yay! I put it into diagnostic mode and found that none of the playfield solenoids were firing. The fuse was blown so I replaced it. I also noticed that the 6F3 4 amp logic fuse was blown so I decided to put in circuit breakers for both 6F2 and 6F3 to try and trouble shoot. I checked wiring and switches and everything seemed okay. So now, almost every time I power the game on, the 6F3 breaker pops but the game plays just fine. On some occasions, 6F3 pops followed by 6F2. I'm a bit confused by this as I figured something shouldn't be working if fuses are blowing.
The other challenge I have is with the sound board. I noticed that the F2 fuse was blown but I still had sound. When I replaced the blown fuse the other night, the F1 fuse also blew. The F1 fuse was only a 2.5 amp slow blow so I replaced it with a proper 4 amp slow blow. Now every time I turn the game on, I get a nice hum from the speaker for a few seconds and then the fuses blow. I put my 4 amp circuit breaker in F1 and left F2 empty as this was how I was getting sound before. No dice. Power up, hum, then circuit breaker pops.
So I've got a couple of problems to deal with that didn't seem to be there originally. Of course I learned the basic lesson that I should check all the fuses from day 1 and make sure they are correct. I'm no electrical whiz but I can probably do some basic troubleshooting with my DMM. I have a local tech that I can turn to if I have to but I thought I'd give this a try with forum help first.
I've attached some pictures of the power supply board on the advice of vid1900. Hoping someone can point me in the right direction.
Thanks,
Dino Z.