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All quarter conversions are done at the owner's risk. We offer this instruction manual as a benefit of doing business with us. We will not support errors and damage done to the slot machine by a failed conversion. All machines leave our work shop working perfectly! We know that because we work on and test each machine intensively before it leaves our shop. We have only listed the brands below because we have had success in their conversion. Any damage caused by a failed conversion is the owner's responsibility. Universal, Aruze, Macy, Mizuho, Electrocoin, Yamasa, Olympia, Heiwa, Diado machines can be successfully converted to quarters.

Choose the type you have from the following pictures:

Type A - Universal & Mizuho Brand

Type B NET

Conversion A

Step 1 - Remove Coin Deflector

Step 2 - Remove Coin Mechanism

Step 3 - Unplug Coin Mechanism from Circuit Board

Step 4 - Loosen Coin Track Screws on Coin Mechanism - On back side of coin mechanism, loosen these two screws a couple of turns

Step 5 - Slide Coin Track Up

Step 6 - Reassemble and Test

Conversion B

Step 1 - Unplug coin mechanism from circuit board.

Follow wire harness from coin mechanism. Hold the circuit board when unplugging to prevent breakage.

Step 2 - Remove Coin Mechanism

Remove the two phillips head screws that secure the coin mechanism to the door. Use a magnetized screwdriver if possible, as the screws have a tendency to fall after removal.

Step 3 - Shim Quarter drop area

Since a quarter is slightly smaller in diameter than the token, there is a window cut in the back of the coin mechanism that will cause the quarter to fall through the coin mechanism and return to the tray. Cut the tail off of a small zip tie and put double sticky tape on one side. Clean the area of the coin mechanism with rubbing alcohol and stick the zip tie under the hole in the back of the coin mechanism.

Step 4 - Reassemble

Reassemble by following the steps in reverse. Don't forget to plug the coin mechanism back into the board

Conversion C

Step 1 - After removing coin mechanism flip it over to expose the back side (Picture)

Step 2 - Loosen screw above yellow plastic and remove it

Step 3 - Picture of coin mechanism with screw removed

Step 4 - Flip coin mechanism back over and keep wires out of the way

Step 5 - Open plastic cover on coin mechanism

Step 6 - Loosen top left screw

Step 7 - Loosen top right screw

Step 8 - Push blue plastic piece down as far as it will go

Step 9 - Retighten the left screw while holding the blue plastic piece down

Step 10 - Retighten the right screw while holding the blue plastic piece down

Step 11 - Loosen lower center screw

Step 12 - Slide blue plastic piece with screw UP as far as it will go and retighten screw. Reinstall coin mechanism back in machine and you are ready to take quarters! Don't forget to plug wire harnesses back in.

Yamasa Conversion

Remove Coin Mechanism

Unplug wires going to coin mechanism and remove coin mechanism by loosening screw at position "B" and rotating out

Press in on the part labeled "A"Press in on the item marked "A" and try to locate where the coin rolls through the mechanism. It is normally right at the edge of the openings in item "A"

Clean coin path and install zip-tie

Clean the coin path with rubbing alcohol. Buy the smallest zip tie that you can find and cut most of the tapered end off. Cut the other end off, leaving the proper length for the surface where the quarter rolls down.

Use contact cement to glue the zip tie over the line where the coin rolls down. Glue the smooth side of the zip tie down. The other side will not stick well.

Use of taper of zip on the end where coin enters. Normally there is a taper (ramp) that can be used when the zip tie is trimmed. Try to located this where the coin enters to prevent coins from hanging up.

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