Replacing Coin acceptor to with Opto interrupter to initiate action

Hi,

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Dear sir

I am in the business of Coin Operated height Weight BMI Machine.

I have some electronic  issue Please Help.

I have a motherboard for such machine which uses coin acceptor using 12 V supply.

I wish to change it to a coin acceptor that only uses a photo Interrupter which uses 5 V

Please let me how to proceed.

Should you need more information just let me know.



Thnaks

Mr Ramputty

Mauritius

please advise urgent please
the mother board of my coin operated weight height measurement machine is operated by inserting in a coin acceptor GD 315 model which uses 12 v
i want to use same mother board in another old machine which is operated by inserting a coin in in coin accepter using opto inrrupter which uses 5 volt.
ramputty

Hi,

I don't know if this would work, combining the two coin acceptors. There are just two many factors to think about.

Hi
Sorry you got me wrong
i wish to replace the GD 315 with an opto interrupter type device
Hope you get my point

Coin acceptors are normally designed to reject the wrong coin types, as well as foreign objects resembling coins. If that is not going to be a problem, then there is no reason why a photo interrupter couldn't be used. You will just have to figure out the interface, and put the necessary electronics between the photo interrupter and the motherboard. I would have thought the photo interrupter would have worked on 12V, does it have the resistors built in,
cheers,
Richard

Thks
Coin rejection is not the problem ,
setting up the Opto interruper is not a problem i can do that.
the OI i suppose is usually in the NC mode (normally Close) and it is open when a coin interrupt the IR.
Where as the MB operate in the opposite mode that is when it receive an impulse it get ignited and when there is no pulse it is in standby mode.
and also the signal strength is low and not enough to kick off the MB.
Pls advise
Thanks

Put an inverter using a transistor or fet into the output of the interrupter, supplied from the 12V supply,
cheers,
Richard