IBM 3742 Reference Manual page 77

Appendix A. Error and Alert Codes
Code Type
Causes What To Do
A Not accessible
The accessibility field in the data Remove the disk.
set or volume label has a non-blank
character.
B Incorrect label BOE is less than track 01, sector 01.
Reset and correct BOE.
EOE is greater than track 74, sector Reset and correct EOE.
26.
EOO is greater than EOE+l. Reset and correct EOO and/or EOE.
EOE or EOO is less than BOE. Reset and correct EOE and/or EOO.
Record length is not equal to 80 on Reset and enter correct length in positions
the 3742, or is equal to 0 or greater 23 through 27.
than 128 on the 3741 or on the
3742 with 128 feature.
BOE, EOE, or EOO sector is 00 or Reset and enter correct sector.
greater than 26.
The third position in BOE, EOE, Reset and insert zero.
or EOO is non-zero.
One of the following conditions
existed when a mode selection was
attempted from track 00:
- The current sector is 01 through Reset and press REC AOV to locate desired
07. label.
- Position 4 in the label doesn't
Reset and rewrite the label with a 1 in
contain a 1. position 4 of label.
- The label displayed is deleted. Reset, key an H in position 1, and rewrite
the label.
C
Self-check The self-check digit doesn't com-
Reset and correct error.
pare properly.
The self-check field is blank in Reset, select field correct mode and
verify (V) mode.
enter the field.
Error and Alert Codes 71