Mill Creek, WA
Does anyone know how to adjust the game to enable the Add-a-Ball feature?
I'm unable to locate any game adjustment features for this. (Also the "extra ball" feature)
(Topic ID: 115504)
From the manual (available on IPDB):
DOUBLE BONUS FEATURE
Extra ball - Special features:
There are 3 adjustments on the hi-score special features adjustment plug:
"C" Position: Hi-score feature scores credits, top center lane rollover
and the center hole score a credit or an extra
ball when lit.
"AB" Position: Hi-score feature scores an add-a-ball. Top center lane
roll-over and the center hole scores an adda-ball, when
extra ball or special is lit.
"NOV" Position: This i3 the novelty position. In this position, all
hi-score adjustment plugs should be un-plugged and the
novelty adjustment plug should be in #2 position. In
the novelty position, no credits, extra ball or add-aball
is awarded. In this position, the special awards
5000 score, when the special is lit, and the ball goes
thru the top center lane or into the center hole.
Extra Ball Award: The extra ball relay is energized which allows the
player to shoot again without deducting a ball to play.
Only one extra ball per ball in play, when an extra
ball is earned, this ball must be played off before
another extra ball can be awarded.
Thanks Steve,
I found the "NOV" position plug under the play field. I currently have it set on "off" (position 1). I also have high score adjustment plugs in place to receive replays (which works). I found, what I believe to be, the "High Score Adjustment Plug" on the front Cabinet panel which I've labeled... (see attachment). 
High Score Adj Plug.jpg
The "High Score Adjustment Plug" seems to have no adjustment. It's either plugged in or not.
So I can't find the "C" or "AB" position. The "AB" position is what I'd like to enable, which if I understand correctly, will also enable the extra ball.
Thanks HDL
Great - thanks for the info and the pictures!
I moved the plug as described and simulated a game and it didn't credit an extra ball (I think I had tried this once before with that plug).
I checked the "NOV" plug and it's set at off (I know this plug is right because the game board will light up for extra ball and special).
I'm thinking that I may have a bad contact somewhere that I'll need to trace.
Thanks!
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