HP 3320A Operating And Service Manual page 124

Frequency
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two BCD
the BCD
ic.
A
true
~
number
:I"
input,
:>te
5.
,D2, D4,
rect
BCD
With the
f
the two
ines have
mplitude
[IC13,14
IA24AFE;T~R 0332Q-6~5~6:
+5V
+5V
I
Rt
R2
I
510
510
L
F~~~OTJI4ENAp81~E9A
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5 lei
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12
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4
A
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I
I
XA248
B
~7~TO
XA238 PIN 47
>O"-"'h----'jso>----
TO LED I THRU AI3
+5V
I
I
R4f
:
46~TO
XA23B PIN 46
A
15K
~
I
L
TgEL~~4FL#11\
IOA------<Z (
-
4~348>--FROM
XA23B PIN48
I
I
Xli 4[\
FRO~
VERNIER FREQUENCY
XA246(10 (
)
II~TO
XAI PIN F THRU A2B,A22 6 AI9
POT R2 THRU AI3
------< 8 (
) L)----m XAI PIN H THRU A2B, A22 8 AI9
f~~J~~~.~:~7
PIN R X,",2
4
"'(I3
~
+5V
+5v------7 4 )XA2
4
b TO XA238 PIN 4
I
~?2>--TO
XA23B
PIN 22
GROUND THRU XA28A PIN 49,~---./
/
~24'- - T D XA238
PIN 24
XA22B PIN 3
~
r,
~I
r -
L__
17
~6>--TG
XA238
PIN 26
33204- B - 2498
TO W2J2
I COMPONENT
4749
2 CIRCUIT
4850
o
0000000000000000000000000
IC12 are
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I
I
I
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<r
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I
I
(+5VI
A
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G
G
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n
<r
U
332.04-8-30'0
22
Z
-C3-
- R7 -
I COM PONENT
A
CIRCUIT
TO XA24A
A24A
lip
Part
No. 03320-66536
Rev A
ICOMPONENT
TOW2J2
4749
2 CIRCUIT
4850
-RIB-
o
-R13-
e -
CZ -
-RI2- Q3
- R I 9 - ®
-RI4-
-R6 -
01
" - - - R 4 = = : )
-RS -
e
-RS -
' - - -
-.~
CJ
c:J~~
G
0
c:::J~U
I COMPONENT
A CIRCUIT
TOXA24A
A248
lip
Part
No.03320-66524
Rev A
22
Z
33201,-8-3078

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