HP 8340B Manual page 181

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].
If the A13 SYTM or the A24 Attenuator Driver/SRD Bias assembly has been replaced, preset the
4.
following potentiometers (pots) to the position stated (see Figure 5-41):
Center the following:
A24R3 (X2A)
A24R4 (X2B)
Set the following fully counter-clockwise:
A24R1 (OFF A)
A24R8 (X3C)
5. If the A13 SYTM or the A28 SYTM Driver assembly has been replaced, preset the following pots to
the position stated (see Figure
Center:
A28R6 (OFST)
Set the following fully clockwise:
A28R13 (DRP)
Set the following fully counter-clockwise:
A28R19 (DYS)
A28R28 (BP3)
HP 8340B/41B
Cal Value
Constant
3 100
100
4
5 100
6 100
7 100
8
100
9 1024
10 1024
11 1024
12 1024
50 0
51 0
A24R6 (X3A)
A24R7 (X3B)
A24R2 (OFF B)
A24R11 (X4C)
5-41):
A28R24 (BP2 FREQ)
A28R22 (DYO)
A28R82 (GAIN)
Cal Value
Constant
52 0
53 0
71 1024
72 1024
73 1024
74 1024
75 25
76 1000
77 —25
78 25
80 0
A24R9 X4A)
A24R10 (X4B)
A24R5 (X2C)
A28R25 (BP3 FREQ)
A28R27 (BP2)
A28R99 (BP1)
A24R12 (MIN)
A28R88 (KICK)
Adjustments 5-75