HELP REQUIRED FOR BALLY RAPIDFIRE

[ddstoys]

Anyone familiar with Bally rapid fire?

     Game was working 100% then stopped loading the balls there is an opto type setup in the chute which activates a triac to run the ball feed motor.  When I close the circuit manually the motor runs.

  Manual says 5v unreg input and it's getting 8v which would be about right I replaced the Ic and the triac with no luck also picked up a NOS board from eBay with the same results.  So I'm guessing it's the opto type transmitters but can't fin them anywhere or I'm unsure of a substitute please help.... 

  All I want is one complete game lol

[Mr Pinbologist]

Post a pic of the opto transmitter Daniel, so we can see what they look like. I'm guessing they might just be basic infrared LEDs 
If thats what they are im pretty sure i have some!

[ddstoys]

I'll load a pic when I get a chance Mitch.   They have a gold colored housing and a clear end the transmitter and receiver look identical. 

[ddstoys]

Ok well it's not the optos it's a voltage issue when the boards are unplugged there is no voltage so it's dragging earth from the board.  When I connected an earth straight from the cabinet to the pin the balls began to feed but only or a few second then it started to slow down then stop grrrrrrr

  Does anyone have an original manual for rapid fire?  The online version is unreadable in the section I need (what a shock).    I've tried following the the cables but it's a nightmare under there of I can work out where it draws it's power I'll run some new wires to rule out damaged wires (highly possible in that mess

[GAP]

Check out PBR`s special when lit page about 1/3 of the way down.
http://www.pbresource.com/special.html

Cheers
Graeme

[GAP]

Sorry ignore that (target opto`s)