Sca-2 Disk Drive Troubleshooting; Tape Drive Troubleshooting - Digital Equipment 3100R Series Service Maintenance Manual

SCA-2 Disk Drive Troubleshooting

Problem
SCA-2 drive status LED lit.
SCA-2 drive status and fault
status LEDs lit.
SCA-2 fault status LED
flashing.
Disk present LED off.

Tape Drive Troubleshooting

Problem
Tape will not load.
Cannot write data to a
tape.
Tape will not eject.
Possible Cause
SCA-2 disk drive failed.
SCA-2 disk drive hung or
has failed.
SCA-2 disk drive failed and
is spinning down.
No power.
Possible Cause
Tape inserted incorrectly.
Tape write-protected.
Tape jammed in drive.
Troubleshooting
Action
Replace SCA-2 disk drive.
Replace SCA-2 disk drive.
Replace SCA-2 disk drive.
Reseat SCA-2 disk drive.
Action
Insert the tape with the arrow on the
cassette pointing towards the drive.
Slide the write-protect tab on the
cassette to the closed position.
Using a small screwdriver, rotate the
motor shaft clockwise to bring
threading mechanism to the initial
loading position.
If necessary, press the ratchet
mechanism to tighten the tape before
ejecting.
Continue to turn the motor shaft
clockwise until the tape can be lifted
out of the drive mechanism and
ejected from the drive.
4-23