The procedure for calibrating the faders on the 2518 DMX Controller was changed in CPU firmware version 2.1 but not documented in the latest version (Revision B) of the user manual. If used, the previous procedure may decalibrate faders in controllers with CPU firmware V 2.1 or higher.
The new fader calibration procedure is as follows:
- Press and hold [Blackout] to put the controller in standby mode.
- Slide all six faders to the top.
- Press [Blackout] to bring the controller out of standby mode. Quickly press scene buttons 4 and 6 at the same time and hold for 1 second. Release the scene buttons.
- The channel LEDs chase upwards to indicate the faders are being calibrated. Repeat the procedure if the LED chase does not occur. The faders are now calibrated and the controller is ready for use.