HP 8340B Manual page 274

5-14.
UNLEVELED RF OUTPUT ADJUSTMENTS (Cont'd)
3.
Press
the
[•*]
step key to
access
each Cal Constant listed
in
the table below and preset the Cal
Constants to the value provided in the
table.
Be sure to terminate each entry by pressing [Hz].
Cal
Constant
3
4
5
6
7
8
9
10
11
12
50
51
Value
100
100
100
100
100
100
1024
1024
1024
1024
0
0
Cal
Constant
52
53
71
72
73
74
75
76
77
78
80
Value
0
0
1024
1024
1024
1024
25
1000
-25
25
0
4.
If
the A13 SYTM
or the A24 Attenuator
Driver/SRD
Bias
assembly has been replaced, preset the
following potentiometers (pots) to the position stated (see Figure 5-41):
Center the following:
A24R3 (X2A)
A24R6
(X3A)
A24R4 (X2B) A24R7 (X3B)
Set the
following fully counter-clockwise:
A24R1 (OFF A)
A24R2 (OFF B)
A24R8 (X3C)
A24R11
(X4C)
A24R9
X4A)
A24R10 (X4B)
A24R5 (X2C)
A24R12(MIN)
5.
If
the A13 SYTM or the A28 SYTM Driver assembly has been replaced, preset the
following pots to
the position stated (see Figure 5-41);
Center:
A28R6 (OFST)
Set the
following fully
clockwise:
A28R13 (DRP) A28R24 (BP2 FREQ)
A28R25 (BP3 FREQ)
Set
the following fully counter-clockwise:
A28R88 (KICK)
A28R19 (DYS)
A28R22
(DYO)
A28R27
(BP2)
A28R28 (BP3)
A28R82 (GAIN)
A28R99 (BP1)
HP 8340B/41B
Adjustments