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REMOV AL AND REPLACEMENT
AS-1. INTRODUCTION
WA:~NING
The disc:/tapedrive does not con-
tain operator "rviceable parts. To
prevent
eleetr~al
shock, refer all .
seTvice activities to service-trained
personnel.
I
CAUTION
I
• The field replaceable assemblies
(FRA's) in the drive are electros-
tatic sensitive devices. Take ap-
propriate
precautions
when
removing the FRA's from the
unit. Use an a.ntistatic pad and
wrist strap. (These components
are contained in antistatic work
:station,
pan
no.
9300-0749.)
Immediately after removal, store
the :FRA's in antistatic, conduc-
tive :plastic bags.
• The drive
is;
delicate and should
be
handled with care. Also, the
unit
is
heavier
(15.8
kilo,rams/34.8 pounds) than its
size would indicate.
• Do not turn the LINE- switch on
or off when the system is trans-
ferring data on the Hewlett-
Packard Interface BUI (HP-IB).
• Do
not cycle the LINE- switch on
and 4:>ff unnecessarily.
• Do IlOt connect or disconnect the
HP-IB cable(s) from the drive
when the sy,tem
is
transferring
data on the HP-IB.
This section provides removal and replacement
procedures for FRAs and parts in the drive. The
locations of the FRAs are shown in. figure 4-3.
Note: Removal
and
replacement
procedures for the following FRA's
contained within tape drive assemb-
ly U 1-FRA I are not provided in
this section. For this information,
refer to the Tape Drive Service
Manual, Section IV, Replaceable
Parts.
• UI-FRA3 (read/write assembly)
• U I-FRA 7 (servo assembly)
• U
I-FRA8 (head stepper motor)
• UI-FRA9
(capstan motor and
tachometer)
Procedures are aiven in the order in which disas-
sembly normally occurs. Each part or assembly
which must be removed before access can
be
gained to another assembly or part is presented
first, followed by the next assembly which can be
removed. This disassembly order is shown in figure
AS-I. Figure 4-11 provides an overall cabling
. diagram of the drive. References are also made to
figure A6-1 to assist in identifying and locating
parts.
Note:
TO~A) .. hardware is used in the
drive. This hardware requires the
use of special drivers. Refer to Sec-
tion IV, Service Information, for
details.
In
this section,
any
reference to this type of hardware
will
be
accompanied
by
the
required driver size (for example,
liT I 5").
*TORX is a registered trademark of the Camcar Division of Textron, Inc.
AS-l
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