Root Causes
1. Board level hardware failures
2. Permanent or temporary short in cables, connectors,
Picker
3. Various hardware failures in Picker that cause too much
current to be drawn
Possible CRU Replacements
v Library Control Board
Possible FRU Replacements
v Library Control Blade Picker fuse
v Library Control Blade
Resolution Remove and replace the Library Control Blade (see
“Removing/Replacing the Library Control Blade and
Compact Flash Card” on page 11-10).
T066: Drive power fuse (F1) blown
Description The library detects that an F1 drive fuse located on a DSIB
board has failed. Each module has a DSIB card to provide
an electrical connection point for the drive sleds. Each DSIB
has a replaceable fuse for the overall drive power bus. This
protects the core library hardware components from some
type of short or over current problem in one or more
drives.
Detection Scenarios
v Monitoring of voltage divider indicates partial or
complete voltage drop
Root Causes:
1. Board level hardware failure
2. Permanent or temporary short circuit conditions in
drives, drive sleds, docking connectors, etc.
Possible FRU Replacements DSIB fuse
Resolution Replace the drive (see“Adding/Removing/Replacing
aDrive Sled” on page 11-5).
T067: Display Assembly hardware failure
Description The library encounters an error which appears to be
isolated to display assembly hardware. This includes the
DIEB board.
Detection Scenarios
1. No i2C communication with board
2. No GPIO with board
3. No CAN with board
4. DIEB fuse is blown
Root Causes
1. Board level hardware failures
2. Display not plugged in
3. Cable failure or not plugged in
Possible FRU Replacements
v Operator Panel
v Enclosure
Resolution Remove and replace the display assembly (see “Contacting
IBM Technical Support” on page 9-15).
Chapter 10. Service Action Tickets (Txxx) and Diagnostic Resolutions (DRxxx) 10-25
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