Help with coin comparitor cc-16d 13v with inhibit

[a69mopar]

I doubt this will help much, but here it is, although it does have the pulse width that is required to fool it. 

w

[murr78]

I don't know what i am looking at when I look at that .pfd file.  My power supply is 13vdc 300mA and on the .pdf file does it say you need between 75mA and 250mA.  If I am reading this right could that be causing a problem.

[stayouttadabunker]

I suspected that the wire harness was different on a S2000 13VDC Coin Comparator harness.
When I got home and took these pictures - that was confirmed...
The CC's harness are configured exactly in the same way you described in your posts.
Can you try for me - another attempt at touching the two bottom wires together
to make the "rake" energized...because I tried it again with this one and
could not get the rake's solenoid energized in the way you've stated...
it's somewhat puzzling to me...

[stayouttadabunker]

Ah HA! I think the answer is in the "time" the two bottom wires are shorted!
Hang on...I'm thinking...LOL


Okay, you must short the two bottom orange wires for at least 12Milliseconds but
not longer than 20 milliseconds in order to open the rake!
there a +/- of 4 Milliseconds from the target of 16mS!!!
That's why you were able to energize the solenoid "sometimes".

Sometimes you shorted them too long or too short of time to send the pulse
or "sense" to the rakes' timer chip which in turn switches a board component
such as a NPN triac to open up the circuit to allow power to the solenoid.

In conclusion, please believe me when I say that I have not confirmed
any of this but it is just my understanding of the electronics involved inside of a coin comparator...
I could be totally freaking wrong on this and I only know of one person on
earth that can confirm what I'm saying but he's been away from NLG for at least 2 years now.
I'm not even sure if he knows about the workings of the coin comparator
as much as I've been looking into it.
We need some one with much more understanding of the components
on these coin comparator boards than I do.
I'm thinking that perhaps a couple guys such as Op-Bell or Channelmaniac
 might have a better understanding of what I'm trying to say about the CC circuitry.

[PacketStorm]

Well I figured out why you aren't able to duplicate the results.. Well after scratching my head wondering WHY.... I sifted through the box and figured out that even though they are the same item number i guess there is a feature built in to some and not all..

The one I am able to get the rake to open/close is a cc-16D-inihibit, the ones I am not able to do that with is a CC-16D-INH, IGT 4C... So I am assuming you have a IGT 4C model... If so that is why we are having different results.. So if I were to use the IGT 4C you are using, what would I have to do to make this work as a stand alone unit....? Can you test yours and see if you can sort pre 1982 pennies.. if it rejects all the ones that are newer zinc.. If its able to do that then, we know for sure the device can differenitate the two.

Thanks!

[stayouttadabunker]

A lot of times, the board inside the Coin Comparator cover gets replaced or changed.
You can almost never go by the labels on top of CC's, DBV's anymore because
these machines are really old and many parts have been changed and
often the labeling was neglected or fell off.
I will make some more attempts to energize the rake and
 try different kinds of penny's today.
The number I have I have on the label stuck to the actual board
doesn't even match what is etched onto the the board.
Take a look at these photos of both sides of the CC board I have.
It's the same board just flipped around??? nuts!!!
The second picture is under a magnifying glass I need to clean...LOL
Why the different numbers from the etched markings to the label I don't know...
It went from 8270079 R6 to a 9270171 R6...
You can see that it wasn't the first label stuck on it either!
Click on photos to enlarge them!>>>

[fitynickels]

so has anyone figured out to get it to work by itself?

[waynelk]

Here is a guy who is sorting copper and zinc pennies with a comparitor.

<a href="http://www.youtube.com/v/b_uUHnjwdLo&rel=0" target="_blank">http://www.youtube.com/v/b_uUHnjwdLo&rel=0</a>

[waynelk]

And how to set one up with a scope.

http://result1.info/myslotnotes/COIN%20MECH.htm

[Jim]

the inhibit feature on the CC was developed so the coin mech could be disabled without removing power from the unit. I believe that by applying a ground to pin one will allow the unit to operate when valid coins are inserted. that would be the enable function,,the inhibit function would be to let a floating voltage greater than 4 vdc. so as you described you have 6-7 vdc at that pin, therefore the unit is in the inhibit mode. if you ground that pin then the unit should operate as it should.  Pin 2 is a sense OUTPUT, you don't have to do anything to it.   

the white sticker that is on the top of the circuit board , I think it is to indicate the value of the resistor located at R-14. that resistor along with R-40 (1k pot) form a voltage divider network to form the bias on the transistor Q-1. it must allow for various sensitivity adjustments.

Good Luck, hope this helps

Jim