To Test The Threshold Accuracy (Logic Analyzer); Set Up The Equipment - HP 1660E Series Service Manual

To test the threshold accuracy (logic analyzer)
Testing the threshold accuracy verifies the performance of the following specification:
• Clock and data channel threshold accuracy.
These instructions include detailed steps for testing the threshold settings of pod 1.
After testing pod 1, connect and test the rest of the pods one at a time. To test the
next pod, follow the detailed steps for pod 1, substituting the next pod for pod 1 in
the instructions.
Each threshold test tells you to record the voltage reading in the performance test
record located at the end of this chapter. To check if each test passed, verify that the
voltage reading you record is within the limits listed on the performance test record.
Equipment Required
Equipment
Digital Multimeter
Function Generator
BNC-Banana Cable
BNCTee
BNC Cable
BNC Test Connector,
17x2
Critical Specifications
0.1 mV resolution, 0.005% accuracy
Accuracy,; (5)110-6) x frequency,
DC offset voltage ±6.3 V
Recommended ModeljP_1t
HP 3458A
HP 3325B Option 002
HP 11001-60001
HP 1250-0781
HP 8120-1840
Set up the equipment
1 Turn on the equipment required and the logic analyzer. Let them wann up for
30 minutes before beginning the test.
2 Set up the function generator.
a Set up the function generator to provide a DC offset voltage at the Main Signal output.
b Disable any AC voltage to the function generator output, and enable the
high
voltage
output.
c Monitor the function generator DC output voltage with the multimeter.
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