(Topic ID: 272700)

Bobby Orr Coin Door/Mech Wiring

By Geeter83

6 months ago

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  • 18 posts
  • 5 Pinsiders participating
  • Latest reply 5 months ago by Geeter83
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#10 6 months ago
Quoted from Geeter83:

What does the 'CR' mean in the schematic that has CR1/CR4/CR12?

'CR' is Ballys way of refering to diodes (in your case the little black things you see soldered on the switch lugs). Diodes have a colored band on one end indicating orientation and should not be connected in reverse.


Quoted from Geeter83:

- Assuming the wire color code is associated with the number trailing the alpha character(s)? ST1(red) or I5(White). What does the 'ST', 'I' stand for?

The switches in these games are wired in a matrix (whole other subject) essentially it's a way to reduce the number of wires required for the large number of switches. The 'ST' refers to switch signals that are "Strobes", the 'I' refers to signals that are switch returns.

Quoted from Geeter83:

- For areas that have no switch associated in the schematic (I3, I6, I4) are those just reserved for other Bally machines (not used on BOPP)

Some of those blank switches are in the cabinet and shown on the cabinet switch harness - look for the "ST" and "I" switch wires. The remainder blanks simply aren't assigned in this game.

Quoted from Geeter83:

What is the asterisk '*' for in the schematic?

The asterisk refers to a Bally test point.

Quoted from Geeter83:

How do I interpret the pin # in the connector to the schematic. A2J2-2 is Pin #1, but I'm struggling to understand which one is Pin #1 in the connector.

A2J2-2 ---> 'A2' refers to the power rectifier board, 'J2' refers to connector J2, '-2' refers to pin #2.

The below diagram is the total Power Play switch matrix.
Cabinet switches/connections have been added and are shown in red
Switch test mode numbers are shown in blue
Switches with capacitors are shown with an orange box
Wire color definition examples are shown at the bottom


2 weeks later
#13 5 months ago
Quoted from Geeter83:

Are there 2 yellow wires because the voltage is somewhat "daisy chained" across all solenoids on the +43 VDC line?

Yes exactly, the yellow wires daisy chain the 43VDC from one solenoid to another. So all coils except the last in the chain will have two yellow wires.

The yellow wires *must* be soldered on the coil lug that has the banded side of the diode connected to it.

#17 5 months ago

I've always done it the way BigAl56 described because I hate wrestling with looped in lug wires when trying to unsolder them.

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