Service Information
16
P6021 Instruction Manual
Adjustment Procedures
1. Insert a small screwdriver between the cover and the termination near the
part number, and gently pry up the top cover of the P6021 termination by
twisting the screwdriver. Leave the bottom cover on, since it must be in
place when the termination is in use.
2. Set up the oscilloscope as described below:
Vertical mode CH 1
Horizontal mode Main
Trigger source CH 1
Trigger coupling AC
Trigger mode Peak-to-peak, auto
Trigger slope Positive
Trigger level As required
Ch 1 coupling DC
Ch 1 resistance 1 M
W
Volts/division 2 mV
Time/division 10 ns
Averages 5 to 10
NOTE. When using a digitizing oscilloscope, set averaging on to increase
resolution.
When using a Wavetek 9100 calibrator with the scopecal option, no other
calibrators are required. The following setups are generic with nominal settings
indicated for the major adjustment steps.
3. Set up the fast rise step calibrator as described below:
Output 1 V
p-p
Repetition rate ≥10 kHz
4. Set up the sine wave calibrator as described below:
Frequency Ref 50 kHz
Amplitude 5 V
p-p
NOTE. Dirty or worn mating surfaces between the transformer and the lid
degrade the low-frequency response. Clean and inspect them before performing
the following procedures. See page 26 for cleaning instructions.
Preparation
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