Replaceable Parts - HP 3720A Service Manual

1
Section I I I
SECTION 111
REPLACEABLE PARTS
3-1 INTRODUCTION
3-2 This section contains information for ordering replaceable parts. Table 3-1 lists parts in alpha-
numerical order of their reference designators and gives the following information for each part:
a. Hewlett-Packard stock number.
b.
c.
d.
Description (abbreviations given in Paragraphs 3-7, 3-8 and 3-9).
Total quantities of each part used in the instrument (refer to TQ column).
Manufacturer and Manufacturer's part number (Code List of Manufacturers given in Table 3-2).
3-3 ORDERING INFORMATION
J
3-4
To
order a replacement part, address the order or enquiry to your local Hewlett-Packard Sales and
Service Office (addresses are listed a t the rear of this manual).
3-5 Specify the following information for each part:
a.
Model and full serial number of instrument.
b. Hewlett-Packard stock number.
c.
Circuit reference designator.
d. Description.
3-6 To ocder a part not listed in the tables, give a complete description of the part including
its
function
and location in the instrument.
3-7 REFERENCE DESIGNATORS
A
=
assembly
C
=
capacitor
CR =diode
DS =lamp
F
=
fuse
IC
=
integrated circuit
J '
=
connector (female)
L
MC
MP
P
0
R
=
inductor
=
micro circuit
=
metal work/
=
plug (male)
=
transistor
=
resistor
miscellaneous part
S
-=
switch
SR
=
shift register
T
=
transformer
XA
=
printed circuit
board edge
connector
3- 1
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