Agilent Technologies HP 8566B Spécifications Page 178

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2. High-Voltage Adjustment (SN 3001A and Below)
12
VP+,
whichever is greater. See Figure 3-10. (The value of V,,
was recorded in step 34.)
If the front-panel INTENSITY control cannot be set fully
clockwise without dropping below this minimum peak-to-peak
voltage, then perform the following:
a. Set the INTENSITY control fully counter clockwise.
b. Set the LINE switch to STANDBY.
c. Increase the value of
AlA2R9.
d. Return to step 34.
Note
Maximum CRT life expectancy is obtained when the peak-to-peak
voltage at AlA3TP5 is as large as possible with the INTENSITY
control set fully clockwise. The display illumination must fully
disappear with the INTENSITY control set fully counter clockwise.
+
running
10.0
V/dlv
4.
.+
..F
.+
.+
.+
,......,....,..........
i
..__.......................~....~.....
0.00000 s
50.0
us/div
1
f
85.00 v
Figure 3-10. Waveform at
AlA3TP5
40. Replace the cover on the
AlA
High-Voltage Regulator Assembly.
3-36 Adjustments
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