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DiGi:
Hi ive got a ps2 keyboard encoder that works fine i wanted to conect the coin mech up it has Cred,Lamp,MTR  12v and 0v.  Ive wired the 12v and 0v into the pc hard drive connector then tried using the Cred and 0v wire to the spade connectors for coin but when i use virtual keyboard it shows that it lights up about 12 keys but also adds the credit when in a game, now i know i should have asked and searched first but when i looked just i saw about the voltage a ipac needs and so if i carry on am i likely to be sending too much of a voltage to the encoder and killing it.

Cheers

DiGi
Avrus:

--- Quote from: DiGi on January 25, 2008, 02:52:03 pm ---Hi ive got a ps2 keyboard encoder that works fine i wanted to conect the coin mech up it has Cred,Lamp,MTR  12v and 0v.  Ive wired the 12v and 0v into the pc hard drive connector then tried using the Cred and 0v wire to the spade connectors for coin but when i use virtual keyboard it shows that it lights up about 12 keys but also adds the credit when in a game, now i know i should have asked and searched first but when i looked just i saw about the voltage a ipac needs and so if i carry on am i likely to be sending too much of a voltage to the encoder and killing it.

Cheers

DiGi

--- End quote ---

I'll bite.

Do you have an Ipac, or some other sort of encoder?  If you have some other sort of encoder, brand would be good, as well as how you have it plugged in (USB or PS/2 connector).

What kind of coin mech do you have?  Pictures?

I didn't follow about the 'spade connectors' and I didn't understand what you were saying about credits in the game.  Does it work currently, or does it not work?

Your 12v should just be going to the lamps.
Fozzy The Bear:
I'll bite as well..... we need to know what coin mech this is that you are powering from 12V on the PC supply. We also need to know what interface it actually has... is it a serial or parallel one.....

I have a feeling that you're trying to connect an electronic coin mech directly to your IPac. This is a no no!! You'll need to go via a credit board to do that. The credit board will then send the correct pulses for coin up to the IPac....  As far as I know the inputs for coin up on the encoder need to be 5V not 12V... you can achieve that with a dropping resistor and maybe a voltage regulator. But to do that you'll need to know what you're doing and it sounds to me like you don't.

Please be more specific about what you are trying to do and what is actually happening, your initial description is a bit on the confusing side. Photographs and/or diagrams of what and how you have connected things would help.

Best Regards,
Julian (Fozzy The Bear) 
Avrus:

--- Quote from: Fozzy The Bear on January 25, 2008, 10:21:17 pm ---I'll bite as well..... we need to know what coin mech this is that you are powering from 12V on the PC supply. We also need to know what interface it actually has... is it a serial or parallel one.....

I have a feeling that you're trying to connect an electronic coin mech directly to your IPac. This is a no no!! You'll need to go via a credit board to do that. The credit board will then send the correct pulses for coin up to the IPac....  As far as I know the inputs for coin up on the encoder need to be 5V not 12V... you can achieve that with a dropping resistor and maybe a voltage regulator. But to do that you'll need to know what you're doing and it sounds to me like you don't.

Please be more specific about what you are trying to do and what is actually happening, your initial description is a bit on the confusing side. Photographs and/or diagrams of what and how you have connected things would help.

Best Regards,
Julian (Fozzy The Bear) 

--- End quote ---

What no rippage on him for the lack of paragraphs, punctuation and spelling?  Fozzy I'm disappointed.   :laugh2:
DiGi:

--- Quote ---
What no rippage on him for the lack of paragraphs, punctuation and spelling?  Fozzy I'm disappointed.   :laugh2:

--- End quote ---

I know it looks bad but if id passed my English exams id be more than happy to get told off at least i usually remember to use spell check  ;)

Right to start off i used the word mech instead of board in the original post and probably some other things that probably confused you the reference to the ipac was just about the voltage it needed to get it working properly.

I am using the following:


http://www.gremlinsolutions.co.uk/products/gsarcade.htm

The coin mech is a Mars MS111TS have no documentation for it and it is connected to a old version of this credit board.


http://www.dmkent.co.uk/credit-coindt.htm

Ive wired the power from a PC`s PSU hard drive connection to the credit board then added 2 more wires to the credit board one to the pin called cred the other to the 0v which i believe is correct to get a signal that a coin is inserted ,  the other ends i then connected to the crimp connections ( i also call them spade ) of the encoder wiring for coin (button 5 ) this is were a micro switch would usually be.

I measured the voltage from the pin for cred and it was 0.06 on a voltmeter set at  20 DC this dropped between 0-6 when  different coin`s were inserted but its telling the keyboard encoder that about 12 keys have been pressed and not just button 5 and that is what the problem is.

If im using mame in a game if i put £1 it will give me 8 credits but it will also open the volume key and the test screen , and if im in windows and use virtual keyboard program it shows 12 keys light up when a coin is inserted .

Hope i have give you a better understanding and not caused more confusion.

Thanks

DiGi
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