Appendix C: Diagnostic Routines and Messages
370B User Manual
C-7
Table C-3: Messages (Cont.)
Message Description
WRITE PROTECT Floppy disk writeĆprotected". Set writeĆprotect key to write
enable" position.
FORMAT BUSY The disk drive is formatting the disk.
FORMAT END Disk format complete.
FORMAT ABORTED Disk format is aborted.
INVALID DATA The data in the file specified by Memory index is not valid.
FORMAT ERROR
FD FAULT
FD READ ERROR
FD WRITE ERROR
FD SEEK ERROR
Floppy disk system internal error. To determine whether the
problem is in the floppy disk or in the disk drive, try a new disk.
Attempt to save or recall a waveform or a setting. If the disk drive
is at fault, contact a Tektronix Field Service Representative.
However, you can still use the 370B, although internal floppy disk
functions cannot be used.
OUTPUT PROTECT OUTPUTS are protected by disabling the COLLECTOR SUPPLY,
STEP GENERATOR and AUX Supply, if abnormal conditions are
detected; such as the COLLECTOR SUPPLY is shorted to either
STEP GENERATOR or AUX Supply, or STEP GENERATOR is
shorted to AUX Supply, or the oscillation of either STEP
GENERATOR or AUX Supply when the oscillation level reaches
the detector level.
Eliminate abnormal conditions.
OUTPUT RESUMED OUTPUTS protection is resumed after a time interval. If the
abnormal condition continues, the OUTPUT PROTECT message
returns.
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