7-1
--------
A4
OUTPUT AMPlIFIER/VOLTMETER
--
ASSEMBAY
I--
-- --
A2 INPUT AMPLIFIER
--
ASSEMBLY
r--
-
--,I
--
A3 NOTCH FILTER ASSEMBLY
--
I--
,
HIGH-PASS
FILTERS
AN0
,
WEIGHTINO
EP
FILTERS
--1
--
--
1
I
I
I
I
I
I~ATTENUATOR-\~AHP IFIER-,,-LOY-PASS
I
FILTERS~~ATTENUATOR-\rAMPLIFIER-\rATTENUATOR-\rBUFFER-\~HIGH-PAS
-rAMPLIFIER-\
I
3
3
FILTER
1
4
2
INPUT OVER-
'r::{:iH
T
7
ATTENUATOR
-
PVOLTAGE
I
PROTECTION
-DIFFERENTIAL-TO-SINGLE-
-
ENOEO AMPLIFIER
I
I
I
I
I
I
I
I
I
I I
I
I I
I
I
I
I
I
I
I
-
-
PROGRAMMABLE
-GAIN AMPLIFIER'
(6)
BD4
TO
LATCH
ro
LATCH
(K)BD4
I
I
I
I
I
-
3
t
I
I
I
II
-
1
1
5
1
I
1
I
OUTPUT OUTPUT SINAO LOG RATIO
I/
METER
I
rMETER
A.TRANSCONOUCTANCE-\
AMPLIFIER
-
-
?RMS/AVG
T
-OVERLOAD
-
OETECTOR
DETECTOR
OC OUT
-1
-1
TPl
-
-
-
-
I
TO LATCH
I
I
6
FROM
LATCH
L
1
I
I
I
I
I
I
TUNE
TUNE
CCOMPARATOR
IN~EGRA~QR
BALANCE
r~~~~~~~~~~
VOLTMETER
c
INPUT
y
SELECTOR
RIPPLE
'FILTER
-\
'FILTER
-\
,-VOLTAGE-TO-TIME bNVERTER
-
I
0
0
0
I
I
A
I
I
I
I
I I
I
..
I
BD2
Figure
88-101
88-101
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