Tektronix LTA7P Series, Service Manual

Page: 77 / 172

Performance Verification: Ajustment/Verification Fixture
TLA7Nx, TLA7Px, & TLA7Qx Logic Analyzer Module Service Manual
4- 29
Use the following procedure to verify the internal clock frequency.
Parameter tested Internal clock frequency
Equipment
required Frequency counter (item 8)
Prerequisites Warm-up time: 30 minutes for adjustment/verification fixture and test
equipment
1.
Set the jumper positions as listed in the table.
Jumper Jumper name Jumper setting
J13 P6434 Deskew/probe setup 3-5 connected
J15 Clock selection INT
J16 Deskew 2-3 and 4-5 connected
J17 Setup/hold select HOLD
J19 Clock polarity select Removed
2. Using the frequency counter, measure the oscillator frequency at pin J1-2.
The frequency should match what is listed on the Calibration Data report.
3. Record this measurement on the Calibration Data Report.
Verify Internal Clock
Frequency