Yamaha SRCP User Manual page 156

10-4 SERVICE mode function
10
10
10-
7) When writing is complete, the screen returns
to step 6.
n
NOTE
The password is identical to the SRCP controller's version number. For example, if the controller version is 24.00,
enter 24.00 as the password. Once the password is accepted, it will not be requested unless the TPB is disconnected
from the controller or the controller power is turned off.
[SYS-SAFE-SVCE-SET]
SERVICE mode = 1
0:Invalid 1:Valid