Troubleshooting

If the Logic and Arithmetic board does not work, first of all:

• Check the power is switched on; the power LED will be lit. If the power LED does not light, replace the battery (rechargeable batteries are fine) and remove all wires and jumpers from the board.
• Ensure you do not directly connect "logic 0" to "logic 1".

If the kit still does not work then please email us.