User's Manual

Troubleshooting Guide for the DLT4500/DLT4700 Mini-Library
6-8 DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem
6.6.1.2 Detecting Case 4
The user can tell this case occurred when the Magazine Fault indicator and slot
indicators 0 and 6 are on. This is the only time slot indicators 0 and 6 are on for a
magazine fault. Only service personnel can resolve this condition by doing the
following:
1. Press the Eject button to open the receiver.
2. Close the receiver to clear the Fault indicator.
3. Press the Load/Unload button; the cartridge loads, but is not removed from the
drive. The Magazine Fault indicator comes on, and the receiver opens. The
service person must remove the magazine, reach in and lift the handle on the
front of the drive, and pull out the cartridge.
_________________________NOTE ____________________________
Slot 0 indicator is lit in all error conditions to indicate an error
occurred. It is not a Slot Select indicator in this case.
___________________________________________________________
After you clear the error try loading and unloading cartridges to verify operation.
6.6.2 DLT4700 Loader Fault Description
A loader fault indicates the DLT4700 mini-library detected a fatal error in the loader
transfer assembly or in the tape drive. In some loader transfer assembly errors, the
mini-library retries the error three times before indicating failure. All loader faults
cause the Loader Fault indicator and an associated subcode to light.
Loader Fault indicates errors in the loader transfer assembly, controller module, or
drive. The suspected fault location is indicated by the following slot indicators:
• Slots 4 and 0a controller module
• Slots 5 and 0a loader transfer assembly
• Slots 6 and 0drive