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Performance Tests
TDS 520A, 524A, 540A, & 544A Performance Verification
These procedures check those characteristics that relate to the signal-acqui-
sition system and are listed as checked under
Warranted Characteristics
in
Section 2,
Specifications.
Check Accuracy of Offset (Zero Setting)
Equipment Required:
None.
Prerequisites:
The oscilloscope must meet the prerequisites listed on
page 1-15.
1.
Preset the instrument controls:
a.
Initialize the oscilloscope:
Press save/recall SETUP.
Press the main-menu button Recall Factory Setup.
Press the side-menu button OK Confirm Factory Init.
Press CLEAR MENU to remove the menus from the screen.
b.
Modify the default settings:
Set the horizontal SCALE to 1 ms.
Press SHIFT; then ACQUIRE MENU.
Press the main-menu button Mode; then press the side-menu
button Hi Res.
Press DISPLAY.
Press the main-menu button Graticule; then press the side-menu
button Frame.
Press CURSOR.
Press the main-menu button Function; then press the side-menu
button H Bars.
Press CLEAR MENU.
2.
Confirm input channels are within limits for offset accuracy at zero offset:
Do the following substeps — test CH 1 first,
skipping substep a since
CH 1 is already set up to be checked from step 1.
a.
Select an unchecked channel:
Press WAVEFORM OFF to remove
the channel just confirmed from the display. Then, press the front-pa-
nel button that corresponds to the channel you are to confirm.
Signal Acquisition
System Checks