Miss-O
Williams, 1969In Miss-O, 15 playfield pool balls light up via the advance unit. Once you pass 15 then the left and right outlanes light Special and you get replay if you roll over those switches. My advance unit seems to be working fine. The playfield balls advance. The outlanes light up. But it doesn't award a replay. Can someone help me see the circuit to check for on this issue?
Quoted from SDM0:In Miss-O, 15 playfield pool balls light up via the advance unit. Once you pass 15 then the left and right outlanes light Special and you get replay if you roll over those switches. My advance unit seems to be working fine. The playfield balls advance. The outlanes light up. But it doesn't award a replay. Can someone help me see the circuit to check for on this issue?
Here's the circuit to diagnose with Alligator clip jumper wires, and a possibly relevant extract from the manual. Depending on the setting of that bottom rollover adjustment there's another bit of the circuit I didn't hilight, but that part of the circuit probably isn't at fault here.
R P S U - Replay Step Unit (Step Up Unit)
Pos - Position
Sw - Switch
Grey - Grey Color Wire
B - Black Color Wire
Grey B - Grey/Black Tracer ColorWire
S U - Step Unit (Step Up Unit)
Quoted from MarkG:(HowardR beat me to it...
) ...
These pinside members often beat me to it, and when I see their posts I know the original poster is already in good hands: MarkG
rolf_martin_062
fredsmythson
CactusJack (Sorry if I missed anybody in that list)
Yeah, I've noticed over the last few months a lot of the EM techs on Pinside can answer these questions within minutes of the original posting. It's great to see that many Pinsiders are willing to share their years of knowledge about the subject... I'll concentrate more on those single posts that have been sitting around for a couple of days, which are rare... 
Quoted from fredsmythson:R P S U - Replay Step Unit (Step Up Unit)
It was the RPSU that was the problem. All better. Thx!
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Boulder, CO