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Coinco 9302 intermittently rejects dimes


cdman
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Hey,

  I want to pick someone's mind--- i have about (20) 9302's that will take 20 -25 dimes in a row, than will reject 3 out 5 at one time then start working agian?

I have cleaned them very good, made sure the coin door closes all the way, removed and cleaned the legs on the socketed i.c., calibrated them etc. Does anyone have an idea? thanks, chris

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Retuning is probably needed. I don't know how you "calibrated" them but that can only be done by a Coinco computer. I would also not pull any EPROM as that wouldn't be the issue. Probably time for them to be serviced if they've been used for a long time.

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To "Tune" a Coinco 9302 changer, remove the water sheild covering the main control board, install a jumper across the two pin header in the upper right corner, power up the unit, insert 16 nickels, 16 dimes, 16 quarters (different coins of each denomination), remove the power, remove the jumper .......test.

The reason for the post was to see if someone had input thru experience as to a possible solution.

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That's just for field tuning. There are more in-depth tuning functions that probably need to be done when that doesn't solve an intermittent acceptance issue. That's when the Coinco software needs to be used and that's how bad or marginal components are found.

Edited by AZVendor
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It seems very unlikely that you have 20 coin mechs with the same failure. “i have about (20) 9302's” If I am reading this correctly you need to look outside of the coin mech for your problem.

 

First put a 6 inch level vertically on the plate behind the coin mech adjust as needed.

Install the coin mech and make sure it is vertical in the other direction.

 

There are 2 different coin mechs with the model number 9302 the early ones that can be field tuned.

The later ones will be labeled coinpro and can only be tuned with the factory computers that CoinCo will not sell.

 

 

Walta

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Yes approximately 20, (probably a few less) i have well over 200 9302 first generation not including coin~pros. I am testing these in a test jig, not a machine. So they can be "tuned". Also is addition to my first reply, there are no Eproms in a 9302 there is a dedicated processor chip proprietary to Coinco and after 20 years they do oxidize and can cause issues. Thank you for your insight.

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So you're spending your time de-soldering them and re-soldering them because you think that can cause an intermittent acceptance issue?  Why not just save yourself the time and aggravation and send them to a Coinco repair depot and get them repaired properly?  There are many reasons why Coinco and Mars have trained techs around the country and this is one of them.

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  • 2 years later...
On 3/4/2015 at 1:36 PM, cdman said:

To "Tune" a Coinco 9302 changer, remove the water sheild covering the main control board, install a jumper across the two pin header in the upper right corner, power up the unit, insert 16 nickels, 16 dimes, 16 quarters (different coins of each denomination), remove the power, remove the jumper .......test.

The reason for the post was to see if someone had input thru experience as to a possible solution.

I know this is a terribly old post - but is it even possible to still get one of these jumpers?  Anyone have any ideas where?

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