HP 3490A - Page 100

6-1.
INTBODUCTION.
6-2. This
section
contains
information
for
ordering
replace-
ment
pafts.
Table
6-l
lists
parts in alphameric order
of
their
reference
designators
and
indicates the description,
-hp-
part
number
of
each
part,
together with
any applicable
notes and
provides
the
following:
a.
Total
quantity used in
the
instrument (Qty
column).
The
total
quantity
of a
part
is
given
the
first
time
the
part
number appears.
b.
Description
of
the
part.
(See
list
of
abbreviations
below.)
c.
Typical
manufacturer
of
the
part
in a
five-digit
code.
(See
Appendix A
for
list
of
manufacturers.)
d.
Manufacturers
part
number.
63. Miscellaneous
parts
are listed at
the
end
of
Table
6-1.
6.4.
ORDERING INFORMATION.
6-5.
To obtain
replacement
parts,
address order
or inquiry
to
your
local
Hewlett-Packard
Field
Office.
(See
Appendix
B for
list
of
office
locations.)
Identify parts
by their
Hewlett-Packard
part
numbers.
Include
instrument
model
and
serial
numbers.
6.6. NON.LISTED
PARTS.
6-7 .
To obtain
a
part
that
is
not
listed,
include:
a.
Instrument
model number.
b. Instrument
serial number.
c.
Description
of the
part.
d.
Function
and
location
ofthe
part.
6.8.
PROPRIETARY
PARTS.
6-9. Items
marked
by
a dagger
(f)
in the
reference
designator
column
are
available
only for
repair
and service
of
Hewlett-Packard
instrumenrs.
..........n€g6tiw
tDsitive
zero
lz4o
temrrature
6ef f icient)
-.. nan@cond{s}
=
lO-9
econds
...... notsp4acly
repleable
Model
34904
sEcTt0N
vl
REPLACEABLE
PARTS
Section
VI
Ta.......
TC
. .... ..
,.. . ...
.,optimum
value
eletcd
atfcbry.
@rage
value *tom
{pm may
be mined}
...
... ..
no
dildatd
type numbc?
6i9ned
$lectgd
d
+ecial
type
@
Dupont
de Nemorc
sTD-A-2734
ABBREVIATIOilS
. . .
hertz
{cyclelsl
per
sond)
NPO
.
.
Hz.
tD.
rmpg
inside diamet6
. . impregnated
..incande$ont
. in$larion{edl
dep.-
DPOT
OPST
@J..
c@f .
@dp
el4t
acap
FET
txd
..
rL
HR
J.
K.
L.
MP
P.
8.
c.
CR
OL
6
L........,
....inductq
lin,.............
..linedtapü
lo9.
..,
,. ...
. . . logorithmic
tapd
mA
.. . ..
., . .. milliampere{s}
=
1O3 amera
MHz
..............megahenz=
10+6here
Mll...............megohmlsl -
10+6ohms
retllm
.....
.........retatjilm
mtr.......
.,...mmuf*'tiiä
.
.
-
.faradld
...... fieldeflet
trilsistor
.........rixed
.........asmblv
.
, .
. . .
. . .
. . moto1
..........battery
........€pertor
.....
-
.....
daode
........&tay
line
.
.
......,Emp
mis
eletronic part
............
lu$
ms
mt9
yr
NC
Ne..
NO
. .
nanoampere{s)
=
1O-9
a-oer*
.
... .. . normally
closd So
. .,
...,
.elenium
.neon
*ct
.......*ction(sl
normally
open
Si
.....,
......silicon
DESIGNATORS
. .filter O. .
.
.........hearer
OCR .........
integratedcircuit
8..,.........
...
....
iack
RT
. .. .
. ..relay
S
.....,ransi$q
-
üansi$ordiode
........resisor
.....thermistor
.........sitch
.... trans{ormet
.
. teiminal
tE*d
...therrccouple
..-...tdpornt
......anductor
T.,
.....
... meter
TB.
rechani@l
parl
TC.
plug
TP .
DECIMAL
MULTIPLIERS
Pr.lix
Symbols
M0ltipli6
Pr.fix
Symbok
Multiplie
Eta
gr9
rpga
kilo
h&to
deka
deci
T
M
or Meg
Kork
h
da
d
to12
to9
ro6
rd
t02
lo
1o-1
centi
c
10-2
milli
m
tO-3
micro
lI
to€
nano
n
l0-9
pico
p
10-12
femto
t
tO-15
afio
a
19-18
6-l
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