Techno Stuff
How They Work - Spin Cycle - Trip Relays
You can relax now, this is going to be easy. On Surf Club, there is only
one feature trip relay that isn't controlled by the selection
feature unit.
surf club |
| corners trip |
|---|
Corners Trip
The corners trip enables scoring when lighting the four numbers in the corners of the main card. The 50V is fed by the now familiar purple circuit coming out of the score disc and mixer #2. Ater that, it's entirely up to the spotting disc and the adjustment plugs to determine the odds of tripping the relay.Looking at the schem, you can see why connecting the adjustment plug to hook up the most wires improves your chances...it's just making more contacts on the spotting disc pass the 50V through.
Your basic odds via the green wire #90-6 are 2% (or 6% if the spotting disc connects the extra solder lug). Wire #50-5 on the adjust plug adds 2%, and wire #48-5 adds an additional 2%.
Overall, you have 2% - 10% change of getting through the spotting disc portion of the circuit depending on adjust plug and spotting disc lug wiring. Multiply that by the 12.5% - 100% factor for the score disc/mixer #2 and a further factor for the mixer #1/reflex disc to get the final odds.
Oh yeah, notice the unlabelled switch right above the corners trip relay coil. This thing
disconnects the coil when the relay is tripped, thus preventing powering the coil
when it's pointless to do so.
Morning After Summary
That's it. Even if you didn't understand most of this stuff, the key point is that the score disc affects the odds of improving the features, and the features affect the odds of improving the scores. By using the score disc itself in combination with mixer #2 to squelch the 50V, the features get less likely to obtain as the scores increase. Similarly, mixer #3, the feature trip relays and feature discs suppress the 50V going into the score circuits.If you want to make your game more liberal, you need to understand what circuits are doing what. On many machines (especially the earlier ones), there's solder lugs on the mixers and spotting disc which can be wired in to increase the odds. On some games, there's alternate sets of contacts on the reflex disc which will help liberalize that section of the circuit, and you can also peg the reflex to keep if from stepping up beyond a certain point. Some people set the reflex liberally and disconnect the step-up/down coils (actually, you can usually misajust the relay plate travel on the reflex unit to make step up/down impossible.
It's also possible on most machines to wire in more circuits on the mixer, but this is a little trickier without the mixer blueprints to verify you are hooking up the right things. You don't want to accidentally connect unrelated circuits through the mixer wipers.
overview
cam/wiper release
drag arms and cam timing
score unit step-up
score unit step-up and feature proportioning
score unit step-up and mixer #1/reflex
feature unit step-up
trip relay activation
