Bellco Pink Bell nothing working

[Kia2002]

Hello, I picked up a Bellco Pink Bell machine for $60 cad. Whe you plug it in and turn it on the lower fluorescent light comes on, you hear a quiet buzzing from the speakers for a second, and you can see very very slight twitch of the middle reel.

Things I've tried.
-Checked fuses
-Full reset
-Remove and reseated every connector.
-Swapped out transformer for a 24v switching power supply, transformer seemed to only put out 13v.
-Checked power on reel stop board, getting 19v.
-Pulled out power supply and boards and checked for leaking or swollen capacitors. Boards look in great shape.
-Checked ribbon cables for wear or breaks.

This is my first pachislo machine. But I have a few arcade games and arcade pcb's that I have fixed so I am familiar with electronics. Are there any schematics or what places I should check for voltages, or any common things that fail on these machines? Any help or guidance is greatly appreciated. Thanks Kyle

[Drunkenclam]

err. is that a 110vac - 24vdc switching psu? Is that what your using to power the machine?

pachislo are either 24vac or 100 vac. wold say on the data plate (if it still exists)

[Kia2002]

I didn't see any data plate, the transformer that was is it just said 24v 5amp output and was replaced at one point. It does the same thing with transformer connected, I tried the switching power supply just to if it would anything would change (same issues). I havewired it back to transformer.

[MrGneiss]

Are tokens just falling through to the front tray??

[Kia2002]

Correct, the machine doesn't even boot up, have no lights or displays working when machine is on, except for lower florescent marquee light that comes on.

[Drunkenclam]

Sorry. Can't be much help. Check the PSU for blown fuses. Check the reset button/key switch are stuck in reset mode.

[Kia2002]

All fuses are good, reset key has been converted to a toggle switch that functions correctly check with multimeter.

[Kia2002]

Bench tested PSU and here are my findings.

20240305_130429.jpg20240305_130432.jpg20240305_130804.jpg

[Drunkenclam]

Normally one of the plugs would output to the power. Carrying motor power (switched in the PSU) and the 5v feed for the hopper sensor (3 or 4 wires) maybe also a hopper overflow pins. (Two exposed pins sticking out from the back of the cabinet.

[Kia2002]

There is a 2 pin connector that goes to hopper overflow, the hopper connector is 8 pins and has 2 5v feeds. From what I can see it looks like power supply is functioning? Seem to get proper output voltages on pins that have power. Getting 5v, 12v and 24v outputs. I think issue may be with main board, I'm going to pull it out and have a close look at it.

[takethecastle57]

https://m.youtube.com/watch?v=QFAWb1F_EpE