Model 3580A Section VIII
8-1.
INTRODUCTION.
SECTION
VIII
BACKDATING
not
exceed+
27
dBm
or±
15 V
de.
Exceeding
these input levels will damage the input
cir-
cuitry.
8-2. This section contains backdating changes which make
this manual applicable to earlier instruments.
Where
possi-
ble, backdating changes have been integrated into the
manual text, parts list and schematic diagrams. Changes
that are too long or otherwise impractical to integrate into
the manual are covered in this section. Backdating changes
included
in
this section
are
referenced by a numbered delta
(b.
1
) which appears
in
the text, parts list and schematic
diagrams. The number indicates the number
of
the corre-
sponding backdating change. Make
all
backdating changes
that
apply to your instrument.
Figure
3-25(C):Change the Terminated input configuration
as
shown
in
Figure 8-1.
CHANGE
NO.
b.
1
: Applies to Option 002 instruments with
serial number
13
l 2A-00465 and below.
Table
1-1:
Change Balanced
Input
Frequency Response
specification to ± 0.5
dB~
300 Hz to 20 kHz.
Paragraph
3-188: Change CAUTION to read
as
follows:
I INPUT!
Z1w~ggg
or~
-CAUTION-
i+
DO
NOT
EXCEED
r-
+ 27dBM or ±15Vdc _
I\
>~
7
FLOATING
COMMON
C.
TERMINATED
TO
INPUT
AMP
Figure 8-1. Balanced-Terminated Input Configuration.
Table
5-13
(pp.
5-15): Delete
40
Hz from the Frequency
Response Test.
When
using the balanced terminated input
configuration, the differential input level must
Table
6-1:
Change the Balanced Input Assembly
(AI8)
parts list
as
follows:
A
18
03580-66518
BOARO
ASSY:tNPUT,BAl
ANCED
28480
03580-66518
IOPTION
0021
Al8Cl
01
T0-0047
C:FXO
MY
0.
3JlJF
5%
lOOVDCW
99515
El-334fl
TYPE
El20
Al8C7
0160-02?8
C:FXD
ELECT
n
IJF
101;
l
5VOCW
56289
150D226X9015B2-DYS
Al8C3
0180-0778
C:
FXD
ElECT
22
UF 10% l
5VDCW
56269
150D226X9015B2-0YS
Al6C4
0170-0042
C:Fxn
MY
O.
3
3LJF
5%
lOJVDCW
99515
El-3340
TYPE
El20
Al8C5
0160-?706
C:FXO
~!CA
160
PF
5%
?84RO
0160-2206
A1BC6
0140'-0204
C:FXO
MICA
47
PF
5%
14655
RDM15E47DJ5C
A1BJ1
1251-2969
CONN:PHOND,
SINGLE
JACK
27264
15-24-0501
A18J2
1251-3638
CONN:POST
28480
1251-3638
A
!AR
l
0757-0819
R:FXO
MET
FLM
9M
OHM
1%
l/7W
28480
0757-0819
Al8R7
0698-4870
R:FXO
FLM
604
OHM
1.
Ol
l/2W
28480
0698-4870
Al8R~
*
0757-0284
R:FXO
MFT FLM
150
OHM
u
l/8W
28480
0757-0784
Al
8R3
FACTnRY SELECTED PART
Al8R4
0757-0477
R
:FXO
MFT Fl.M.
200K
OH~
u
ll
8W
28480
0757-0472
Al6R5
0698-3245
R:FXO
MFT
FLM
20.5K
OHM
1%
l/8W
28480
0698-3245
A
lBTI
9100-1460
TRANS
FOR
MER
AllD
IO
284RQ
9100-1460
8-1
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