HP 3490A - Page 205

iov
c
508
o.oo47
R525
187
+ 30v
+a'6v
R5 t7
54.9K
+20v
SAIVPLE/HOLD
OPTION
R3
17
5K
+
30v
R5rO
45.3K
7-
NOTE 3
+5V TO REED
DRIVE
AND
Ä ,..,
OVERLOAD
PROTECTION
CIRCUiTS
-
-
WBB
+3OV
TO OC
aMP
-_l-b-
+3OV
wcc
-30v
ro Dc
at\4P
d1
-30V
WEE
-l7V
TO
SWITCHING
+-*--J-*\--
-
17V
WFF
-3OV
IO 66493
'-----J+b-
-
36Y
X I GAIN
VIEWED
FROM TOP
-4--4-t2
l,^J ),^J
e/l?)z
e(1-2)z
7\+l
zV
8
I
r:
4-<
'\
or /-
-\--.
A
FROM
POWER
SUPPL
I ES
ffPo
',A.
+ t7v
-
30v
.
c503
'3OOpF
R527
t.07K
BOOTSTRAP
AMPLIFIER
J4
(A)
J4
il)
NOTE
I
AMPLIFIER
OUTPUT
'lr
B(
L
NOTE
r.
Ju
OP
2.
R4
AN
3o
Wl
wl
SA
6.
rF
NU
IN
B
--
FEEDBACK
ATTENUATOR
'Ail
-
_*"1
I
I
__l
+t7 v
,,,
vvva
to-
M-
R430
39K
A
7
(HMDB)
AUTO ZERO L
FROM
Ull
(5)
or J5{
l)
R43l
t5K
R432
4.7K
R433i
CR4O3
5.6K >
lov
c40l
3OPF
I
(LIG)
XI GAIN
L
FROM U402
(8)
8
(LIOG)
XIO GAIN
L
FROtlr U402
(3)
R439
4.7K
8
(LHNG)
XIOO GAIN L
FROM
U402 16)
7.
ol
HI
R
tN
T
8.
Bl
A
FI
to. tl
ILD
K
t2. il
raF
c
2
TO,J4{6)
-
tlv
-
l7v
R437
|
50K
Get other manuals https://www.bkmanuals.com