Sony MSW-900 Operation Manual page 330

If it does not reflect the changing sound level, the function of the
XLR connection automatic detection is set to OFF. Set REAR XLR
AUTO to ON on the VTR MODE 1 page of the MAINTENANCE
menu.
If it does not reflect even after you set REAR XLR AUTO to ON,
the XLR connection automatic detection function does not work
correctly.
(7) Checking the functions of the user bits and time
code
1
Set the user bits as required.
For more information see "4-5-3 Setting the User Bits" on page 4-37.
2
6
Set the time code.
For more information, see "4-5-1 Setting the Time Code" on page 4-34.
3
Set the F-RUN/SET/R-RUN switch to R-RUN.
4
Press the VTR START button, and check that the tape starts and
that the counter indication changes.
5
Press the VTR START button again, and check that the tape stops
and that the counter indication also stops changing.
6
Set the F-RUN/SET/R-RUN switch to F-RUN, and check that the
counter indication changes regardless of whether the tape is
running.
7
Set the DISPLAY switch to DATA and the DATA DISPLAY
switch to U-BIT, and check that the user bit value that was set is
displayed.
6-10
Chapter 6 Maintenance