I'm working on a Tech Chart for Fire! right now.
The G.I. is fused in the backbox, just below the Power Supply.
There is a series of 4 fuses with 5A fuses each.
With the game off, pull each fuse and check with a multimeter if one is blown.
No boards or other things in the circuit, but the GI-relay (solenoid 10).
The relay board is located under the playfield just left of the left flipper.
You might need to check this board too.
Most likely it's just the fuse.
Be sure to remove the short before replacing the fuse.

Unless the board is totaly toasted, it fixable.
Relays can be exchanged.

Screw-on connector were the best way to go.
Not everyboby has the right tool to use Trifurcon connectors.
Perhaps that will be the next version...

Mike, can you check a fuse for me please?
I like to know which voltage is on fuse F4 on the Power Supply board.
And then what fails if you remove this fuse?
Be sure to turn the power off when you pull the fuse.
This will be information for the Tech Chart.

May I Join in this Fire! Side chat? I recently got a Fire two months ago, and slowly have made it come to life. But, I also have a fuse problem. The 4 bank below the power supply keeps blowing fuse 3 from left. I've watched it at start up and it only last 10 seconds until red glow and die. I know this is lower play field GI on right side. I've run the line to under play field looking for short or loose wires, none found yet.
My thoughts, much like Mike above is to buy new rottendog power supply. Also new 4 bank fuse holder, and those 2 bridge rectifiers and add single fuse holders to those.
Your thoughts, starting in right place?
Many Thanks, Eric

Mike, I think I've figured it out from the schematic.
F4 on the Power Supply is for the Special Solenoids 17 thru 22.
All other solenoids are via F2.

Eric, go over each lamp socket in the string.
Watch the bare wire closely and follow this around the right playfield.
Also look inside the lamp fitting if you haven't already.
Remove all the lamps from this string and see if you still have the problem.

As for the 2 bridge rectifiers and added fuse, I would reccommend my Bridge Board.
That also takes care of the large capacitor.
My Bridge Board is available from Big Daddy Enterprises.
There is more information about my Bridge Board on my website www.inkochnito.nl (click on the left image).

Peter
www.inkochnito.nl

Peter- loving pinside right now! Thank you for your thoughts. Your bridge board is already in my big daddy PayPal cart, then I started searching his stuff, been awhile since I've been on that pin store. Needless to say building order will purchase tomorrow. I will follow your instructions and update next week, working all weekend.
I have 're- bulbed, but didn't examine down in those. Will do that again and follow stream, I've done that once for almost 2 hours looking for damage and bad wiring. Also checked all connections at cpu board and power supply. One of the bridge rectifiers has a chaulky white powder creeping out behind it. Did not mention that machine spent 25 years in Germany. When I got it, was working, but fritzy. Opened up power in lower cabinet and veristor was melted and black burn every, melted fuse holder. Replaced all with new box and power cord. Fuses where wrong and few jumped and bypassed. Worried about the cpu board, but it works, sound all works, just the lower GI I mentioned before dead. Still thinking new power supply too, since big daddy has it,?
Haven't heard her "save my baby" in awhile. Don't know why. Just got bell back from from being 're bronzed, polished and lacquered. It's a georgous bell now. Will post pic tomorrow here. Thanks again . Love that your board, great work. I assume that doesn't replace the 4 fuse holder? Eric

All is fine now.
The Tech Chart is complete now.
Perhaps you would like to check it for errors?
Edit: (Extra backbox display fuses added)
I'll attach a copy of the file.

Peter

Williams_Fire_Tech_Chart.pdf

Mike, I will start new thread, to many Fire problems to discuss. Does Peter's bridge board replace that 4 fuse holder for the GI too? Don't think so, not sure.
New to pinside, I get it about threads, Thank you and Peter for your help.
Eric E.

No, it doesn't.
It's just for the 2 bridge rectifiers (solenoids and controlled lamps), the large capacitor and adding the 2 fuses.
Look here for more information: http://home.kpn.nl/p.koch3/

Peter- Adding pictures for your tech sheet. Missing upper back box fuses.IMAG0920.jpg

IMAG0919.jpg

IMAG0922.jpg

IMAG0921.jpg

Those fuses are for the -100v AND +100V for the displays.
There are not mentioned in the manual, but I'll add them to the Tech Chart.
Luckily there is a label under the fuses stating their purpose.
The next game in the series (Big Guns) did have those fuses.
Thanks for telling me.

Peter
www.inkochnito.nl