Controller Check - Yamaha RCX240 User Manual

12. "SYSTEM" mode
12.5.1

Controller check

1
This makes a self-diagnosis check of the controller.
n
NOTE
• An error message will always appear if DC 24V is not supplied to STD.DIO.
• An error message will always appear if DC 24V is not supplied to the option DIO.
2
Press
1
The controller is then checked, and a "System check OK" message appears if no errors
are detected.
3
An error message appears if an error is detected.
4
5
Press
2
6
7
8
9
10
4-296
Chapter 4 OPERATION
(CHECK) in "SYSTEM>DIAGNOS" mode.
System check
to return to "SYSTEM>DIAGNOS" mode.