Tektronix 784A Bedienungsanleitung PDF herunterladen (Seite 154)

Performance Tests

4–78

TDS 684A, TDS 744A, & TDS 784A Service Manual

H Press the side-menu Fields.

H Use the keypad to set the number of fields to 1 (press 1, then

ENTER).

H Press the side-menu Sync Width.

H Use the keypad to set the width to 400 ns (press 400, SHIFT, n,

then ENTER).

H Press the side-menu –more– 1 of 2. Then press V1 Start Time.

H Use the keypad to set V1 start time to 10.10 ms (press 10.10, SHIFT,

m, then ENTER).

H Press the side-menu V1 Stop Time.

H Use the keypad to set V1 stop time to 10.50 ms (press 10.50, SHIFT,

m, then ENTER).

H Press the main-menu Type pop-up to select Edge.

H Press HORIZONTAL MENU.

H Press the main-menu Record Length.

H Select the side-menu 1000 points in 20div. If needed, first press the

side-menu –more– until you see the appropriate side-menu item.

H Turn the HORIZONTAL POSITION knob to position the trigger

‘T’ two divisions to the left of the center screen.

H Press MEASURE.

H If needed, press the main-menu Select Measrmnt.

H Press the side-menu Negative Width.

H Press the side-menu Period.

b. Set up the pulse generator (PG502) for Sync Duty Cycle Test.

H Set PULSE DURATION to 50 ns.

H Set PERIOD to 10 ms.

H Set OUTPUT (VOLTS) to –1 for LOW LEVEL and +1 for HIGH

LEVEL.

H Depress the COMPLEMENT button.

H Be sure BACK TERM is depressed (in).

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Tektronix 784A Bedienungsanleitung Seite 154