
‘Ihble
3-2. Adjustable Components (continued)
Reference
Adjustment
Adjustment Adjustment Function
Designator
Name Number
Al
lA5Cl
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
A19R9
A19R19
A19R32
A19R41
A19R43
A19R50
A19R56
+ 20V ADJ
-12.6 VR
OFFSET
2.5
GHz
SPAN
25
GHz
SPAN
OFFSET
25
GHz
SPAN
+lOVR
2.5
GHz
SPAN
OFFSET
1
13
13
13
13
13
13
13
Adjusts + 20 V dc supply voltage.
Adjusts -12.6 V reference for YTO
dAC
high end
(6.2
GHz).
Adjusts summing amplifier offset.
Adjusts 5.8
GHz
switchpoint overlap.
Adjusts 25
GHz
span offset.
Adjusts 5.8 and 12.5
GHz
switchpoint overlaps.
Adjusts HOV reference for YTO DAC low end (2
GHz).
Adjusts 2.5
GHz
span 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
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