Standard AC Fuse for a Dynamo Cut Corner Cab?

Phetishboy

Well-known member
Joined
Dec 12, 2006
Messages
47,929
Reaction score
9,392
Location
Avon, Minnesota
I went to the movies on Saturday and got a request from the owner to fix his machines. His Street Fighter II in a dynamo cab was dead. No marquee light, no monitor power, no game sounds, nothing. 5A fuse looked good, didn't have a meter with me. Is 5A right?
 
Is this a 25" monitor?

Normally the line fuse is about 3 amps (5A is probably okay), but SF2's have two power fuses, also. The +5 has a 7-amp fuse, and the +12 has a 1-amp fuse...
 
Is this a 25" monitor?

Normally the line fuse is about 3 amps (5A is probably okay), but SF2's have two power fuses, also. The +5 has a 7-amp fuse, and the +12 has a 1-amp fuse...

No a 19 inch K7000. I already have the chassis cleaned and awaiting a capkit at my place. Where are these fuses located? I only saw the 5 amp on the floor of the cab, next to the line filter and transformer.
 
Does it have a box power supply in it? If so, they would be in there.

And I was mistaken (I was reading the manual). Those are the max amperages of those volt lines, but they might not necessarily be fused.

Check that fuse, and if it blows again, unplug the coin door and marquee light and try again. If it doesn't blow, make sure they plug these things into surge protectors.

Obviously they have power at the wall? Might be as simple as a bad plug end or bad interlock/power switch...
 
Does it have a box power supply in it? If so, they would be in there.

And I was mistaken (I was reading the manual). Those are the max amperages of those volt lines, but they might not necessarily be fused.

Check that fuse, and if it blows again, unplug the coin door and marquee light and try again. If it doesn't blow, make sure they plug these things into surge protectors.

Obviously they have power at the wall? Might be as simple as a bad plug end or bad interlock/power switch...

It's got an older switcher which may or may not be dead. There is power at the wall, as I plugged the pinball machine into the same outlet and it fired right up. I am wondering about the plug/cord. That could be suspect. I noticed no interlock switches. I will bring a new power cord, new switcher, and a box of 4 A fuses. There were a shitload of quarters on the cab floor, some under the transformer, some under the switcher, some under the fuse holder, etc, so I am assuming there was a short from one of them.
 
I hope you kept the quarter so you could "inspect" them for a burn spot, indicating it was the cause.... :D
 
I hope you kept the quarter so you could "inspect" them for a burn spot, indicating it was the cause.... :D

I should have, must have been $100 worth. My daughter was with me and she pulled them all out and stuck them into the coin bucket for him. He didn't even offer her a handful of them to keep for all that work! He did give us a stack of free movie passes though.
 
I should have, must have been $100 worth. My daughter was with me and she pulled them all out and stuck them into the coin bucket for him. He didn't even offer her a handful of them to keep for all that work! He did give us a stack of free movie passes though.

with the cost of movies today, that seemed rather fair. lol

I haven't seen an SF2 in a movie theater since........... 1992. (Super, 1994)

can't you meter at the AC line in or iso to see if the juice is even reaching that point? if you have no marquee or monitor then it's something on the AC fuse, and whether or not the power supply lives or dies shouldn't matter. :)

I'd inspect the cord for damage, but then again, if the AC wires were crossed wouldn't that trip a circuit breaker too in addition to blowing the fuse?
 
I was under the impression you could at least do continuity checks by hooking each end of the fuse to your nipples. I'm sure you have non-technical uses for alligator clips. :)
 
Was it a dynamo with the switched power supply in the back?

I once delivered one and it gave me nothing at startup....

I unscrewed the fuse, looked at it, and screwed it back in... And suddenly it worked.

Apparently, it must have shifted during transport.
 
Was it a dynamo with the switched power supply in the back?

I once delivered one and it gave me nothing at startup....

I unscrewed the fuse, looked at it, and screwed it back in... And suddenly it worked.

Apparently, it must have shifted during transport.

Yep, it has a switcher in it. I took the fuse with me.
 
Back
Top Bottom