Agilent Technologies 1670G Series, Service Manual

Page: 95 / 224

Acquire the DC input data
Use the following table for steps 1 through 5.
Multimeter Settings
Scope Settings Power Supply
Settings Scope Readings
V/Div Offset Supply Minimum Maximum
1 V/Div
−
35.00 V
−
35.00 V
−
35.4 V
−
34.6 V
200 mV/Div
−
10.00 V
−
10.00 V
−
10.1 V
−
9.90 V
20 mV/Div
−
2.00 V
−
2.00 V
−
2.02 V
−
1.98 V
20 mV/Div +2.00 V +2.00 V +1.98 V +2.02 V
200 mV/Div +10.00 V +10.00 V +9.90 V +10.1 V
1 V/Div +35.00 V +35.00 V +34.6 V +35.4 V
1
Connect the power supply to the oscilloscope channel 1 input. Set the power supply
according to the first line of the table above.
2
Set up the oscilloscope according to the table above.
a Move the cursor to the V/Div field, then use the RPG knob to dial in the V/Div value
shown on the first line of the table.
b Move the cursor to the Offset field. Use the front-panel keyboard to type in the offset
value shown in the first line of the table. Use the left and right cursor-control keys to
select either mV or V. Press the Select key.
3
Acquire the measured voltage.
a Press the blue shift key, then press the Run key. After approximately 15 seconds
(averaging complete), press the Stop key.
b Read the voltage from the Markers voltage field. The value should be between the
minimum and maximum values listed in the table. Record the value in the
performance test record.
4
Repeat steps 1 through 3 for the second line of the table, then for the rest of the lines
of the table for channel 1.
5
Repeat from "Set up the logic analyzer" for channel 2, replacing channel 1 with
channel 2 where applicable.
Testing Performance
To test the offset accuracy (oscilloscope)
3–71