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2. High-Voltage Adjustment (SN 3001A and Below)
Equipment
High-Voltage
Adjustment Procedure
Warning
Warning
HI-VOLTAGE
Figure 3-5. High Voltage Adjustment Setup
Digital Voltmeter (DVM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HP 3456A
DC High-Voltage Probe (1000: 1 divider) . . . . . . . . . . . . . . . . . . HP 34111A
Display Adjustment PC Board (service accessory) . . . . . . .85662-60088
Digitizing Oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 54501A
Function Generator (2 required) . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 3312A
In the following procedure, it is necessary to probe voltages
which, if contacted, could cause serious personal injury. Use
a nonmetallic alignment tool when making adjustments. Be
extremely careful.
Do not attempt to measure the CRT filament voltage directly. The
filament voltage is referenced to the high-voltage cathode and
can only be measured safely with a special high-voltage true-rms
voltmeter and probe.
1. Set the spectrum analyzer's LINE switch to STANDBY.
2. Remove the top cover from the IF-Display Section, and
the equipment as shown in Figure 3-5 and described in the
following steps.
the
3. Set the DVM to
100 V range, and connect the DVM to
the
Figure 3-6 for
location of AlA7TP3.
DIGITIZING
OSCILLOSCOPE
SIGNAL ANALYZER
connect
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