HP 8508A - Adjustable Components

a
Adjustments
@
:
a
5-6
RELATED
ADJUSTMENTS
a
.
Table
5-2.
Related
Adjustments
a
Assembly
Replaced
Perform
the
following
Adjustments
a
e
bel
Al
Front
Panel.
None.
|
A2
Power
Supply.
5-8.
Ee
A3
IF
Assembly.
5.9.
RB
A4
Search
&
Lock.
5-10.
|
AS
Processor.
None.
a.
5.7
ADJUSTABLE
COMPONENTS
a
a
Table
5-3
lists
all
adjustable
components
in
the
HP
8508A
Vector
Voltmeter.
&
Table
5-3.
Adjustable
Components
B
Reference
Adjustment
“Adjustment
Description.
wi
Designation
Name
|
Paragraph
A2R11
+50V
5-8
Adjusts
the
+
5.0V
REG
Supply.
a
A2R
16
+12.0V
5-8
Adjusts
the
+
12.0V
REG
Supply.
z
A2R
19
-12.0
V
5-8
Adjusts
the
-12,.0V
REG
Supply.
A3L1
Set
20
kHz
ChA
5-9
Sets
centre
frequency
of
bandpass
Ba
filter.
A3L2
Set
20
kHz
Ch
B
5-9
Sets
centre
frequency
of
bandpass
|
iE
filter.
A3
R151
Differential
Phase
5-9
Sets
+
180°
phase
range
on
A3.
B
F
as
A3
R178
100
mV
Ref.
5-9
Absolute
gain
adjustment.
A4R
89
Set
1.62
MHz
5-10
RC
--
VCO
centre
frequency.
||
A4L3
Set
32.4
MHz
§-10
LC
--
VCO
centre
frequency.
a
a
a
E1089
|
53
re]