North Star DIMENSION Service Manual page 169

DIAGNOSTICS
(cont .) Service Diskette #3
Key Test Name
Test Description
[R] Read Sectors
This option selects the number of sectors
to be read by the COMPARE command.
Central board memory limits this option.
If more than 35 sectors are selected, the
read operation may have to occur in more
than one start / stop operation . Streaming
is not possible.
[S] Scroll Operations This option, when turned [ON], causes tape
drive operations , which are normally
displayed on line #25, to be displayed and
scrolled up the screen to allow display of
the next operation . If the option is
turned [OFF ], each new action overwrites
the previous action .
Thus, the menu is
retained on the screen.
[T] Ticks per Second This option changes the speed of the
software clock that times the tests. The
smaller the number, the faster the clock.
Selecting zero results in the default being
selected.
[U] Unit Number This option is only used if a custom
multiplexing board ( which is able to
control multiple tape drives) is installed.
If a multiplexing board is used, this option
selects a tape drive (by number) to
test--because all drives are not tested
simultaneously.
[W] Write Sectors This option selects the number of sectors
to be written when using the Technician
Menu WRITE command [F4].
DIMENSION Service Manual 3-57