SDS ON SIGMA OLD SLANT TOPS

To start See All Items - Get The Catalog for SDS, and you think the problem is in the CPU board ?

1) You must use the tester, like the one pictured above.

Note: the Black out LED should be on

2) The coins in & coins out LED should blink when coins are inserted or cashed out.

3) YOU MUST HAVE GAME START LED BLINK WHEN YOU START A GAME

Without the game start, you will get any SDS except for the Door opens.

To make sure the CUP is good, you must use a known good Interface board and the sigma SDS tester.

Check out the wiring. 

1) The game board sends information to the interface Board

2) From the Interface Board the information is sent to the Tillis Board

3) The Door Switch Open/Closed information is sent to both the interface Board & the Tillis Board

4) The Tillis Board sends the information to the 220 Board

5) The card reader sends information to the 220 Board / It will also receive information and will display it on the display.

6) From the 220 Board, the information is sent to the SDS computer in MIS.

That computer also sends information to the 220 boards and is displayed on the card reader.

Hope this information will make trouble shooting a bit better for you..

HAVE FUN !!

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