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7.
Field–Replaceable Units (FRUs)
7.1 Introduction
Many of the major components in the RLS are available from Qualstar as separate
Field-Replaceable Units (FRUs). Each FRU can be removed and replaced on-site by
qualified personnel. Some of the FRUs are mechanical assemblies while others are
Printed Circuit Board Assemblies (PCBAs).
Table 7-1 lists all of the RLS FRUs, their Qualstar part numbers and the time esti-
mated for an experienced technician to remove and replace a FRU for the first time.
The last column indicates if it is required to calibrate the RLS after changing a FRU.
The RLS can be commanded to calibrate itself automatically, which takes approxi-
mately 5-minutes.
TO AVOID THE RISK OF PERSONAL INJURY: TURN OFF ALL POWER TO THE
TAPE LIBRARY SYSTEM, THEN REMOVE THE POWER CORD, BEFORE
ATTEMPTING ANY OF THE PROCEDURES IN THIS CHAPTER.
NEVER OPERATE THE LIBRARY WHILE THE DOOR OR TOP PANEL ARE OPEN.
UM VERIETZUNGEN ZU VERHINDEM: SCHALTEN SIE ALLE STROMSCHALTER
AN DER RLS AUS UND ENTFERNEN SIE DAS STROMKABEL, BEVOR SIE MIT
DER SERVICE-ARBEIT BEGINNEN.
BENUTZEN SIE DIE RLS NIE WENN DIE TUERE OFFEN IST, ODER DIE DECK-,
BZW. SEITENPLATTE ENTFERNT SIND.
Static electricity can permanently damage the integrated circuits on all RLS
PCBAs. Standard ANTI-STATIC practices should be employed when working
501510 Rev. S
DANGER
GEFAHR
CAUTION
Field–Replaceable Units (FRUs)
7-1
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