Performance Verification
4–12
THS710A, THS720A, THS730A & THS720P Service Manual
This test checks the oscilloscope time base accuracy.
1. Set up the TekScope instrument using the following steps:
SCO
PE
SA
VE/
RECALL
Recall Saved
Setup
Recall Factory
Setup
—
OK Recall
Factory
—
VERTICAL
MENU
Probe Type Voltage Probe Set to 1X
2. Connect the TekScope instrument to the time mark generator as shown
below.
Time mark
generator
Ch 1
Output
50 W feedthrough
terminator
BNC cable
3. Set the time mark generator period to 10 ms.
4. Set the TekScope instrument VOLTS/DIV to 500 mV/div.
5. Use the vertical POSITION rocker to center the test signal on screen.
Check Oscilloscope
Sample Rate and Delay
Time Accuracy