IBM 5100 Maintenance Information Manual page 127

Routine
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Number Description Error Code Meaning
TR101 Determines if both tape tracks return interrupts and if the
0982 Status Error - BOT status
sync byte (hex E7) can be read from both tracks. active once, but not active
now.
0983
Read Data Error - No
interrupt (read clock) detected
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from either tape track.
0985 Read Data Error - No
interrupt (read clock) detected
from tape track 0 (format
track).
C~
0986 Read Data Error - No
interrupt (read clock) detected
from tape track 1 (data
track).
0987 Read Data Error - No sync
byte (hex E7) detected on
tape track 0 (format track).
0988 Read Data Error - No sync
byte (hex E7) detected on
tape track 1 (data track).
0989 Read Data Error - No sync
byte (hex E7) on either tape
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track.
TR0312 Cartridge in place status (10) should not be present. 0912
Bad sense bit found.
TR0315 File protect status (02) should be present. 0915
Bad sense bit found.
TR0318 LED on status (04) should be present. 0918 Bad sense bit found.
TR0321 BOT status (01) should not be present; that is, sense bit (01) 0921 Bad sense bit found.
should be on.
TR0324 EOT status (SO) should not be present. 0924
Bad sense bit found.
TR0327 Erase active (08) status should not be present. 0927 Bad sense bit found.
TR0330 Erase active (08) status for track 0 (format track) should be 0930 Bad sense bit found.
present.
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Note: This test leaves the erase coil on.
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Diagnostic Program Routines 3-45