Bally Dracula bad Transformer?

Tighe

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So I am helping a friend via the internet to get his Bally Dracula working again.

He is having power issues, and I had him order a GPE rectifier board. He had a local "pinball repair" guy install it, and he proceeded to break it, then replace one of the bridge rectifiers on it. :mad:

Anyways, then the repair guy installed a Bad Dog in the machine but he was only getting 4.3v on the 12v (11.9v) line. He gave up and left him like this. Some repair guy. :(

So I had my friend connect his meter on e11 and e12 in AC mode and indeed only 4.3 VAC is coming out of the transformer to the rectifier.

I am thinking that his transformer is bad, although pretty uncommon to happen.

The only other thing I can think is that the connections from the transformer got mixed up and the instead of hooking up to correct wires to e11 and e12 on the rectifier board the wires for e9 and e10 (6.3 VAC) were connected. But 4.3v is really pretty far from 6.3v so I don't think so.

Thoughts? I am going to have him test the voltages on all the other connectors too.

Where would one go about getting a replacement transformer for this pin?
 
Bally Darcula ???? Should be a Stern, but they are the same parts wise in most instances. It seems that transformers for SS Bally/Stern are getting pretty hard to find. The only source I know of is original parts. There was a couple on ebay. Big Daddy Enterprises sometimes has them, put up a WTB in the pinball sales area. I had a couple of extras but recently sold them. Keep checking ebay, old OPs and anywhere you can find pin parts. It may take a while, keep looking and one will surface.
 
How is he measuring voltage ?

AC is hot to common, not hot to ground.

Transformers failing isn't a common thing.

Now wall voltage at 100 and game wired for 120 is a possibility.

LTG : )
 
Well this game worked until recently plugged into this outlet.

Like I said I had him connect his meter to e11 and e12. I get the proper voltage off my transformer on my quicksilver so I think he should add well.
 
So I am helping a friend via the internet to get his Bally Dracula working again.

He is having power issues, and I had him order a GPE rectifier board. He had a local "pinball repair" guy install it, and he proceeded to break it, then replace one of the bridge rectifiers on it. :mad:

Out of curiosity - what did he do to the GPE rectifier board?

Try measuring the AC voltages right out of the transformer and let us know what you get:
E7 to E8 -- GI
E9 to E10 -- switched lamps
E11 to E12 -- low voltage to 5V DC regulator
E5 to E6 -- high voltage for displays (> 200V)
E3 to E4 -- solenoid power

Watch out for E1 and E2 -- that's your main power coming into the machine!

Ed (GPE)
 
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Will be curious to here what the final issue was on this. Unless you got a voltage spike, I doubt the transformer is bad.
 
Out of curiosity - what did he do to the GPE rectifier board?

Try measuring the AC voltages right out of the transformer and let us know what you get:
E7 to E8 -- GI
E9 to E10 -- switched lamps
E11 to E12 -- low voltage to 5V DC regulator
E5 to E6 -- high voltage for displays (> 200V)
E3 to E4 -- solenoid power

Watch out for E1 and E2 -- that's your main power coming into the machine!

Ed (GPE)

Here is what he got for voltages off the transformer - measured where the transformer wires connect to the rectifier board:

E9 to E10 0.7v
E11 to E12 4.8v
E5 to E6 162v
E3 to E4 45v
E1 to E2 122.5v

I will ask him to measure E7 to E8 as well, but I think there is something wrong with the transformer or at least the wires from it.
 
Wow. If it turns out to be the boards, I highly reccommend Clive at Coinop Cauldron. He does top notch work and tells you everything he's done. He's worth the wait if he's backed up.

Love that game, by the way.
 
Wow. If it turns out to be the boards, I highly reccommend Clive at Coinop Cauldron. He does top notch work and tells you everything he's done. He's worth the wait if he's backed up.

Love that game, by the way.

I highly doubt it is the boards as the voltage off the transformer is way off on a few of those points.
 
Not much help here. But I truly had a bad transformer in my kiss it was a bi*ch o find. Once I slipped a new used one in it fired right up. Good luck I will look around I might have one laying around.
 
Here is what he got for voltages off the transformer - measured where the transformer wires connect to the rectifier board:

E9 to E10 0.7v
E11 to E12 4.8v
E5 to E6 162v
E3 to E4 45v
E1 to E2 122.5v

I will ask him to measure E7 to E8 as well, but I think there is something wrong with the transformer or at least the wires from it.

Just bumping this up for anyone to chime in on. I am thinking it is the transformer.
 
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