General
Information
1-3
Warnings, Cautions, and Notes
Warnings, cautions,
and
notes are used throughout this manual. Warnings call attention to potential
hazards for personnel. Cautions call attention to potential hazards for equipment. Notes emphasize
important information
or
instructions.
Although
all
warnings, cautions,
and
notes are important,
one
warning
and
one
caution are in-
cluded here to acquaint you with computer considerations.
WARNING
WAIT AT LEAST 15 MINUTES AFTER TURNING OFF POWER, OR
DISCHARGE POWER SUPPLY CAPACITORS USING POWER
SUPPLY
DISCHARGE TOOL, PART NUMBER 09855-67004, BE-
FORE REMOVING POWER SUPPLY FROM COMPUTER. FAILURE
TO FOLLOW
THIS PROCEDURE COULD RESULT IN EXPOSURE
TO
LETHAL SHOCK HAZARD.
CAUTION
TO PREVENT DAMAGE DUE TO ELECTROSTATIC DISCHARGE
(ESD),
FOLLOW THE PROCEDURES PROVIDED IN CHAPTER
4.
Repair Philosophy
The computer repair philosophy involves diagnosis of symptoms, overlapping levels of diagnostics,
service utilities,
and
assembly replacement within 15 minutes.
The computer
is
repaired at an assembly replacement level. Parts that are most commonly replaced
are exchange parts
and
are
on
the Computer Support Division (CSD) exchange program. When
an
exchange part
fails,
it
should
be
returned to CSD for repair,
and
a rebuilt part should
be
obtained. If
a new part
is
purchased instead,
it
is
unnecessary to return the failed part. Chapter 5 contains a list
of exchange parts with new
and
rebuilt part numbers, a
list
of module-level non-exchange parts,
and
a
list
of
all
replaceable parts.
In
addition to the standard Field Service Inventory
(FSI)
sets, several other sets are available
depending
on
the selected options. These are as follows:
• GP-IO
110
Card FSI
• HP-IB
110
Card FSI
•
ASI
110
Card FSI
• PSI
110
Card FSI
•
MUX
110
Card FSI
•
LAN
110
Card FSI
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