DEC DECstation 316+, Service Manual

Page: 40 / 94

2–16 Troubleshooting
2.6.2 Disk Related Problems
Table 2–6 lists some common disk related problems, possible
causes, and suggested corrective actions. If the corrective action
does not work, run the Diagnose diagnostics to further isolate the
problem and then replace the failing FRU.
Table 2–6 Hard Disk and Diskette Drive Troubleshooting
Procedures
Problem Possible Cause Corrective Action
Hard disk cannot read
or write information. Problem exists with
the drive or drive
adapter. Make sure all
jumpers are set
correctly.
Intermittent hard disk
read/write problems. Possible corrupted
files. Restore disk from
back-up files.
Hard disk works
but produces extra
characters or garbled
text. Hard disk is affected
by static electricity. Move system away
from any motors,
magnetic devices,
or photocopiers.
Increase the
humidity in the
room and use anti-
static mats around
the system.
System won’t start from
the diskette drive or
displays the message
Abort, Retry, Ignore. The diskette has
been demagnetized. Make sure the
disk drive cable is
correctly installed.
Replace the
diskette.
Improperly
formatted diskette. Reformat the
diskette.
Diskette drive
cannot read or write
information. The diskette drive is
empty. Insert a diskette
into the diskette
drive.
Diskette is not
formatted. Use a preformatted
diskette.