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3-2. Adjustable Components (continued)
Reference
Adjustment Adjustment Adjustment Function
Designator Name Number
AllA5Cl
IMPEDANCE
16
Optimizes sampler output.
MATCH
Al lA5C2
IMPEDANCE
16
Optimizes sampler output.
MATCH
Al
lA5Rl
IF GAIN
13
Adjusts level of 30 MHz output.
A16R62
OFFSET
13
Adjusts scan ramp offset.
A16R67
SWEEPTIME
13
Adjusts time of sweep ramp.
A16R68
AUX
13
Adjusts AUX OUT sweep ramp.
A16R71
GAIN 2
13
Adjusts frequency span accuracy (YTO sweep).
A16R72
GAIN 1
13
Adjusts frequency span accuracy (YTO sweep).
A17R50
+2OV
ADJ
1
Adjusts
+20
V
de
supply voltage.
A19R9
-12.6 VR
13
Adjusts -12.6 V reference for YTO
dAC
high end
(6.2
GHz).
A19R19
OFFSET
13
Adjusts summing amplifier offset.
A19R32
2.5
GHz
SPAN
13
Adjusts 5.8
GHz
switchpoint overlap.
A19R41
25
GHz
SPAN
13
Adjusts 25
GHz
span offset.
OFFSET
A19R43
25
GHz
SPAN
13
Adjusts 5.8 and 12.5
GHz
switchpoint overlaps.
A19R50
+lOVR
13
Adjusts HOV reference for YTO DAC low end (2
GHz).
A19R56
2.5
GHz
SPAN
13
Adjusts 2.5
GHz
span offset.
OFFSET
A20R25
A20R34
A22A2
6.15
GHz
13
Sets high-end frequency of YTO.
2.3
GHz
13
Sets low-end frequency YTO.
FREQ ADJ
12
Adjusts reference oscillator frequency.
For Serial Prefix 2737A and below, see back of table for
A22
exceptions.
IF Serial Prefix 3001A and Below
AlABClO
AlA2R5
AlA2R22
AlA2R30
Cl0
INTENSITY
GAIN
HF GAIN
FOCUS GAIN
3
Adjusts rise and fall times of Z axis amplifier pulse.
3
Sets adjustment range of front-panel INTENSITY
control.
3
Adjusts rise and fall times of Z axis amplifier pulse.
3
Coarse adjusts CRT focus; sets range of front-panel
FOCUS control.
Adjustments 3-11