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(Topic ID: 296821)

Early Bally Rectifier Board Hacks

By Hi-Fi

2 years ago

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7 posts
4 Pinsiders participating
Latest reply 2 years ago by Thunfisch
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#1 2 years ago

RJA

Hi-Fi

Pinside member

Milwaukee, WI

11y 63,550 722 10 6

I’m working on a Skateball with the early Bally AS2518-18 rectifier board. I planned on replacing it but it has some weird hacks going on that I want to figure out 1st.

It has one thicker red wire and one thick orange wire and one thin orange wire coming out of the wiring harness and soldered to Test Points 1 & 3.

It also has a thick green and a thick white wire from the wiring harness soldered to the bottom face of the rectifier board.

There is also wire soldered from the bottom of the capacitor just above fuse F1 to the ground point on the solenoid driver board.

Anyone see this sort of thing before?

9959A316-3234-4F0E-885D-44E5B8901018 (resized).jpeg

A30506C5-C6D4-442C-9E85-CEE891154882 (resized).jpeg

AE8038F9-0CE8-4E63-B116-B80FBFBD1D9A (resized).jpeg

BCF58DB1-E4C1-4EF5-8BCF-D255DBBB6DBE (resized).jpeg

FA701580-78D1-4204-875C-BB10C929E801 (resized).jpeg

#2 2 years ago

RJA

Hi-Fi

Pinside member

Milwaukee, WI

11y 63,550 722 10 6

I think these hacked up wires are supposed to go to the J3 connector.

#3 2 years ago

RIK

Rikoshay

Pinside member

9y 46,900 1,499 1

it's hard to see where the wires are going to, there's one underneath that appears to be a ground hack.

can you remove all the plugs, J1, J2 & J3 and post clear pics with wires separated/not bundles so as to possibly advise further?

#4 2 years ago

MTN

Thunfisch

Pinside member

3y 30,550 181 9

OP
Quoted from Hi-Fi:
Anyone see this sort of thing before?

I really would say: It's the other way round. I havn't seen a single piece of this board surviving until today without any of this sort of hack.

Just some examples:

FB_IMG_1619533492217 (resized).jpg

FB_IMG_1619533497531 (resized).jpg

IMG_20210501_113928 (resized).jpg

znpdh (resized).jpg

#5 2 years ago

RJA

Hi-Fi

Pinside member

Milwaukee, WI

11y 63,550 722 10 6

Haha! Holy cow. I guess my issues are pretty minor.

#6 2 years ago

GTX

gdonovan

Pinside member

7y 185K 13,206 70

Quoted from Thunfisch:
I really would say: It's the other way round. I havn't seen a single piece of this board surviving until today without any of this sort of hack.
Just some examples:[quoted image][quoted image][quoted image][quoted image]

I must be lucky; the only issues I have run into is some toasty/burned GI pins.

#7 2 years ago

MTN

I can supply you with more photos of hacked Bally rectifier boards...
827397F4-902D-4E80-BDE2-96A6C83121EA (resized).jpegFB_IMG_1613986863345 (resized).jpgFB_IMG_1615574885929 (resized).jpgIMG_20200614_161101 (resized).jpg

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