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A6 AM DE~ODULIATOR ASSEMBLY
r - !
TO
COUNTER
COUNTER I F
I F
OUT
i
BUFFER
BD5
FM OUTPUT
' F M
I N
260
k H z
' I F
I N
TP2
PRECISION
CHARGE-COUNT
D I S C
OUT
j :
I
STAGE
1
STAGE 2
STAGE
3
T P 3
SWITCH
b
4 '
TP5
I
I
I
I
I
I
' A M I N
260
k H z
I
EL?
J!
r
-
-
-
I
I
I
I
I - -
- -
- - -
I
BD4
TO FROW AUDIO
DE-EMPHASIS
AND
OUTPUT ASSEMBLY
BD2
I
STOP SWEEP
-
I F PEAK
<J2>
TO LO
0 E T E
c
TO R
I F PRESENT STATUS
T 0
/
F R 0 M
. I
IOPTION 030 SERIES ONLY)
A55 I F CHANNEL F I L T E R ASSEMBLY:
SERIAL PREFIX
26421
AND ABOVE
(OPT
030
SERIES ONLY)
A54
I F AMPLIFIER AND DETECTOR ASSEMBLY:
A71
I F AMPILFIER AND DETECTOR ASSEMBLY:
2642A
AND ABOVE.
a
SERIAL PREFIX
2314A
TO 2636A.
- -
- -
PROGRAWMABLE I F ATTENUATION
I
I
I '
AND A M P L I F I C A T I O N
I
ATTENUATOR
AWPLIFIER
ATTENUATOR
AWPLIFIER
ATTENUATOR
2
2
3
3
4
W32
. 0 dB
a -
_ .
I
I
I
I
I
I
I
,72
I F AMPLIFER AND DETECTOR ASSEMBLY: SERIAL PREFIX
2642A
AND ABOVE.
< . 1 7 >
1
A72
C H I N U F A T Q R ASSEMBLY
- -
- -
- -
7
I
F I R S T
I
I
CHANNEL 1
CHANNEL 1
CHANNEL 1
I
FROM
BUFFER
BD2
&
--1
A50 AM &LI&ATOR
ASSEMBLY
- -
I
- -
r
AMPLIFIER
BD2
I
I
10
MHz
I
L I W I T E R
I
I
-'I
1 7
SECOND
CHANNEL
1
I
I
CHANNEL
I F
RMS
OUTPUT
SELECT
SECOND
SWITCH
CHANNEL 2
F I L T E R
I
I
CURRENT
SOURCE A
CURRENT
0
E C 0 0 E R
LATCH
l o
kH2
MODULATION
I
OSCILLATOR
I
- -
- - -
A51 FM C A L I B g T D R ASSEMBLY
- -
TRAPEZOID
I
I
I
10 MHz
,
-.
.- .
.
BD5
BD5
. .
BUS FROM
10 k H z
DECODER
BUFFER
LATCH E
S
I
0 E C 0 0 E R
,
'2
TO
V
0 L
T
ME
T
E R
1 -
BD4
I
I /
II
I
I
-' - FM
SOURCE-
I
I
.
1
I
I I
I
.
I
'
k
B
D
5
INSTRUMENT BUS
I
FROM CONTROLLER
I
BD3
BE-7
30
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