809- Doesnt Increment with coin drop

[Piney]

Brought out the old 809 from storage.  I got it to work--almost  Lots of mechanical cleaning.  All the contacts on relays' switches and wheels were cleaned.
The machine plays and pays. 
ISSUE-- Coin drop doesnt increment the 5 coin multiplier systems.  It doesnt increment the light.  Doesn't increment the odds wheels
I can make the light increment by pressing the Odds Relay by hand.  This however still doesnt increment the odds wheels though.
I can trip to coin in wire.  One light comes on, handle releases but no incrementing.

I've cleaned x2  all the relay contacts except those at the handle. I havent pulled it off yet for a deep cleaning. One Youtube video explains this problem by replacing an intermittent switch there.  Mine doesnt have this switch.  QUESTION-- could that function be provided by a relay contact's switch ?

I verified all the relay and solenoid coils in the upper unit function by applying 50 VAC  I recleaned all these relay contacts and the wheel contacts in this upper odds unit

Where else might I look for a bad connection not making it through to the odds unit ?  I have a set of cables so that I can pull the odds unit out onto the bench so I can watch for repay and solenoid movements

[DavidLee]

Last week a problem not similar to yours was solved by cleaning the Beau plug pins.
Also, look for a pushed back pin.

Although, this could be tested by manually stepping up the unit to the 5th coin.
Then depress the coin switch wire to reset the unit.
This should give some indication if the unit is somewhat working.

Wolftalk, most likely has a schematic that will help you follow the circuit(s) for this particular situation.
Basically the coin switch actives the unit with every coin inserted.

[wolftalk]

do you have a model/serial plate below the handle with a specific model number on it?

if not, most of the 809's will have very similar circuits for the odds unit step-up, so you can look at any of them you can find on https://bingo.cdyn.com/slots/ ... the 809-B would be typical.

the coins mainly interact with the odds unit stuff on the top insert board.  The things that look like pinball machine score reels are used for payout multiplication and are only used during payout.

your goal is to get the odds unit to reset on the first coin and step up once for each addition coin.  The top odds lights will move when that's working.

is that and a schematic enough info or do you need more details? 

tmi
----

the way it works is:

1] first time you push down the coin switch, the coin relay trips and the odds reset relay powers and the odds reset solenoid coil on the odds unit fires IF the odds are 2+ coins played on the previous spin

2] when the odds reset relay powers, it keeps itself powered until an "open at 0" switch on the odds unit opens.  The makes sure the odds unit reset solenoid stays powered long enough for the wipers to spin back to reset position.    The open at zero switch is one of the ones poking out over the white plastic ratchet/gear and activated by a pin.

3] when the coin switch tripwire goes back up, the handle release relay is tripped.

at this point, you've played one coin and the odds unit is fully reset and the leftmost odds column is lit.  If you push down the coin switch tripwire again:

4] the odds relay should power and keep itself powered ... note the unit needs to be in the machine because a handle release relay switch is in the circuit.  You could jumper a couple plug pins to fake it if you wanted to work with the top insert out of the machine.

5] when the coin switch tripwire goes back up, the odds unit step up solenoid coil fires and pulls the plunger into the coil

6] at the "end of stroke" - when the plunger is pulled in - a switch is opened by the step-up arm and the odds relay is unpowered

7] the odds relay unpowering opens a switch to the odds unit step-up solenoid and it unpowers.  Springs pull the plunger out and the wipers on the unit rotate.

[Piney]

A bit of wire tracing led me to a contact in the handle switches set
A second round of contact cleaning and a little bend in the bottom switch got it to make the necessary contact
It seems happy to increment with additional coins now.
Tomorrow Ill pour a touch and fire up a cigar. That should provide for a good 30-45 min of handle pulling as a test to be sure its payouts are working
As always thanks to all who commented!