HP 3320A Operating And Service Manual page 145

I
I
1
~320A-J-2551
1
PI J2
t-----+-,
-< E ( . . , . : - - - - - - - - - - - -
TO AIOPl
15
.f'p
::;;:1
1
1
X~4
XA20A
)--i--
FROM XA2lA PIN L ....... See I
Note
XA22A
(1000KHz RANGE)
\
R65
lOOK
R31
lOOK
+15V
R63
l.rK
R29
I.IK
5Vdc
20mVdc
,
C44
T
.O~
5Vd,
\l7
~
20mVdc
/
+ I5V
2Q-21.299MHz
~
~
20 20.1299MHz
C21
~.~
ROO
IK
R26
IK
+15V
R59
IK
R25
IK
100 KHz RANGE SWITCH
I
1000KHz RANGE SWITCH
------------1
~
1.7Vdc--.
OVdc
+15V
~
1.2Vdc
~ O.2Vdc
R57
3.3K
R23
3.3K
C42
~.OOI
F======~======="
-15V
R58
3K
R24 CI9
3K
~.00l
-15V
+15V
15Vdc
~
2.7rVd:.::'_~
_ __ .
I
C40
~.Ol
C41
.001
12
CI6
1.
01
W
CIB
.001
' 2
R55
130
R21
130
+5V
+5V
I
I
4.2Vdc
I
3.8vdc
R64 XA4
H-=----.-----<~_6""2""'0____lr_------~
2
~
FROM
~~~&A
PIN 10
I
i
XA22A "-
I (100KHz RANGE) " See Note
: I
I
I
1 ,
,
,
i , ,
,
, ,
, ,
1
+-----------r---------------~
Br
20-20.1299MHz
14
*
\
TO XA5 PIN3
R68 4 15Vd,
J
(10kHz 6 1000Hz RANGE DIVIDER)
5.IK
&7Vdc
TIOV
----------- ---- ---- -- ---------------
C38
.001
R54
B20
C6
20-21.299MHz
FILTER AND AMPLIFIER
I
C4
- - - - - - - - - - - - -
A4A2
r - - - - - - - - - - - - - - - - - ,
I
I....-
---J
A4AI
r - - - - - - - - - - - - - - - - - - - - - ,
f=============~==============',
C33
.01
CIO
.01
R50
750
RI6
750
R49
I.IK
+15V
- - - - - - - - - - - -
IC6
IC2
' - -......- - - - - 4 - - - - t ' J V v - - . - - - 1 5 V
.:r. C31
W·
OI
RII
910
L ~~====~==jQWV---15V
10
- - - - - - - - - - - - - - --
---------
- - - -
MIXER
MIXER
I
L8
R44
51
\ NOTE:
Ground pins
3,4,5,7,10, II
C30
1000PFJ
+5V
RI8
130
I
• \ 5iJr
\NOTE:
Ground pins
3,4,5,7,10,11
L3 C29
15 1000PF
r==
,f'================~=================\\
FILTER AND AMPLIFIER
R37
5.6K
R3
5.6K
R36
5.6K
R2
5.6K
R5
620
AMPLIFIER and 710
I
AMPLI FIER and 710
R7
200
03320 - 665 04
R35 R38
.A
R39
620 620
W
C27 620
+--,,,",,,~,,,",,-._Oj,O_I
_ _
~
Z.BVdc
RI
620
C25
.001
C26
.01.J;
C2
.Ol~
F==========!============.,
03320 - 66519
I
I
R53
IBMH I ..--.2VP-P
FROM XA~
-----+-<'
14 .:-
f-~,-L_ _=_2.,,4~K'-__I
PIN 14 : '
I
I
22
F
4
RANGE
D~:ER
XA4
I
I
+15V~" ~
+15V
I
I
I
-15V~12~-15V
I
I
I
I
1
I
I RI9 CI4
22
F~p9r~r
+<14
E(_ _
~c:",-_·_2_V_P_-_p ",2~OOI
,
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
20-32.99 MHz
I
FROM XA3
-+<
3
E( ~)I--2.:..::8-"W:::.'__H
PIN F I .81,1
!
I
L4
I
5.6
+
5V
-----T<5
1
~~C48
+5V
,
I 15
I
I
I
I
I
I I
II
~H-;R-
BOARO
I
I
I
I
I
~~
: I
4,6,7,9,
I 10,13,15
I
I :
L5
I 5.6
I ...
~i~:
. .
L
CUPYRIGHT 1971 BY HEWLETT-,P'"'A"'C"K"'"A=R=D""'COMPAN·."Y------
4' SEE SECTI~~'II, BACKDATING
Figure 7-21. Range Divider A4.
7-43/7-44
13