HP 8642A Operating Manual page 623

SAMPLING
' MIXER
R3B
SAMPLE
SUPPLY
.OUNO
26
31.6k AND HOLD
R48
:
" J
316k
C22
J
3
2p
^
ATTENTION
Static Sensitive
Devices
NTEGRATOR
+ 15V (F7)
P / O NC
IB
VREF
+
V
XI
X2
X3
X4
BUFFER
O . I M
-15V (F3
P / O U1Q
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R31
619
-15V (F3)
JU2.
+ 15V (F7)
R30
4220
U9A
2
R33
100k fi
3
+ 15VIF7)
DC VOLTAGE
COMPENSAT
2 A
A D J .
-■^v——
C W R32
110k
-15V (F2)
TLC30
T O . O i M
1
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T o . O i / J
-15V (F3)
E " 1
R2B
Ilk
LOOP
A C Q U I S I T I O N
R27
196k
U9B
R25
Ik
R26
10k
ACQUISITION SIGNA
BEAT NOTE SENSE
LOOP LIMITING A N D ISOLATING AMPLIFIERS
+ 15V(FB)
+ 15VIF9)
+ 15V(F10)
C10
47p
C131
4.7p
R13S
100