The key to troubleshooting and diagnosing problems with your MC-2 is the LED lights. These lights display all information about the camera, and they follow a simple color code. For more information, view the color code sheet below.
If you become stuck during setup or troubleshooting, refer to the Sticker Guide to help you along the way.
If the switch is set to OFF or ON, then all lights should be OFF.
When the camera is set to SETUP, all lights will be On.