Post by jakemate on Sept 17, 2024 14:27:14 GMT
Good day, this is my first post.
I'm a novice unfortunately and bought this pinball as a non working project, I have been reading up and trying to repair myself but could do with some help I'm afraid.
The jukebox compact amplifier 40 200 000 00 functions, LEDs red and green illuminated and I can hear a buzz from the speakers.
The strip lights illuminate ok
The front panel flip charts move left to right when operating the buttons for left and right but that's all that appears functional.
I found an old wiring diagram for a similar model I believe.
I have first checked at the scc cd2500 module as there are no functioning LEDs on the front.
I have 32vac present and two 12vdc reading 11.85v DC
I have opened up the cover and checked the 7805 voltage regulator at the bottom of the board, getting just over 12v DC in and an output of 5.11vdc
From there I'm stuck, is there only other power inputs to the scc, or any other reason why it won't power up.
The display that it drives is also non functioning.Also the coin mech is missing but that wouldn't cause this issue? I also noticed what looks like an adapter board that has two very burnt resistors but the voltage to the scc is there. I not sure if this is related
Can you help?
I have basic equipment, a digital multimeter, logic probe etc as I like tinkering with 90's era pinballs.
Thank you.
I'm a novice unfortunately and bought this pinball as a non working project, I have been reading up and trying to repair myself but could do with some help I'm afraid.
The jukebox compact amplifier 40 200 000 00 functions, LEDs red and green illuminated and I can hear a buzz from the speakers.
The strip lights illuminate ok
The front panel flip charts move left to right when operating the buttons for left and right but that's all that appears functional.
I found an old wiring diagram for a similar model I believe.
I have first checked at the scc cd2500 module as there are no functioning LEDs on the front.
I have 32vac present and two 12vdc reading 11.85v DC
I have opened up the cover and checked the 7805 voltage regulator at the bottom of the board, getting just over 12v DC in and an output of 5.11vdc
From there I'm stuck, is there only other power inputs to the scc, or any other reason why it won't power up.
The display that it drives is also non functioning.Also the coin mech is missing but that wouldn't cause this issue? I also noticed what looks like an adapter board that has two very burnt resistors but the voltage to the scc is there. I not sure if this is related
Can you help?
I have basic equipment, a digital multimeter, logic probe etc as I like tinkering with 90's era pinballs.
Thank you.
