Errors - Motorola System 6300 Service Manual

Tests and Subtests
Subtest 21:
Subtests 22:
Subtest 23:
Subtest 24:
Subtest 25:

Errors

Tests 6 and 8 can return the following errors:
Error during Disk Format:Response = x.
Not on Cylinder zero after Recal:Maybe on d,Response = x.
Can't Recal:Response = x.
Can't Write the new VHB:Response = x.
Can't Write the new Bad Block Table:Response = = x.
Error on Write:response = x,Start Block = d.
Error on Re-Read;Response = x,Start Block = d.
Re-Read Data Fail:Start Block = d.
Error on Read:Response = x,Start Block = d.
Bad Block Table Overflow when adding Sector d.
Bad Block Table:Multiple use of alternate d.
Disk is not System 6300 Format.
No parity error on disk DMA.
Improper BSR after disk DMA parity error.
Improper BSR after disk DMA page fault.
No page fault on disk read.
Page status not = accessed after disk write, reg = x.
Page status not = modified after disk read, reg = x.
No Bad Block Recovery for Floppy Disk.
2-12
Subtest 21 prompts for a start block number
and a number of blocks.
disk is read and any blocks that cannot be
read are displayed together with the failing
status.
Subtest 22, which verifies correct data
transmission in conjunction with subtest 17,
is identical to subtest 16 (see above),
except that in addition to receiving data,
subtest 22 compares the data with the data
on disk and prints only the differences
found. The input sequence for subtests 22
and 17 is the same as for subtests 16 and
17. Subtest 22 does not write to disk.
Subtest 23, which surface tests a disk,, is
identical to subtest 3 (see eibove) except
that instead of returning an error, subtest
23 adds any bad blocks found to the bad
block table.
Subtest 24 repeatedly loads the bus to see
if any stray interrupts occur.
reads the first disk cylinder over and over
while initializing RS-422 transmissions.
Subtest 25 sorts the Bad Block Table.
This portion of the
Subtest 24