TB 9-6625-2320-35
(11) Adjust front-panel VERTICAL SCALE knob for an on-screen display of 200
mV.
(12) Adjust front-panel HORIZONTAL SCALE knob for an on-screen display of
200 s.
(13) Press front-panel CLEAR MENU key.
(14) Verify the vertical scale readout displays a setting of 200 mV, and a square-
wave probe-compensation signal about 2.5 divisions in amplitude.
(15) Rotate front-panel VERTICAL POSITION knob to verify the signal moves
up and down the screen when rotated.
(16) Rotate front-panel VERTICAL SCALE knob counterclockwise to verify a
decrease in waveform amplitude.
(17) Rotate front-panel VERTICAL SCALE knob clockwise to verify a increase in
waveform amplitude.
(18) Adjust front-panel VERTICAL SCALE knob to display 200 mV; verify
waveform amplitude of 2.5 divisions.
(19) Press front-panel SHIFT key; then press ACQUIRE MENU.
(20) Press side-menu Sample key. Verify noise present on peaks of the square-
wave.
(21) Press side-menu Peak Detect key. Verify peaks have been added to the
squarewave.
(22) Press side-menu Hi Res key. Verify reduced noise on the squarewave.
(23) Press side-menu Envelope key. Verify noise and peaks on the squarewave.
(24) Press side-menu Average key. Verify reduced noise on the squarewave.
(25) Repeat technique of (1) through (24) above for CH 2 , CH 3 , and CH 4 .
(26) Disconnect probe tip from PROBE COMPENSATION SIGNAL; disconnect
probe ground from PROBE COMPENSATION GND.
c. Time Base Functional Test
(1) Install probe on CH 1 .
(2) Connect probe tip to PROBE COMPENSATION SIGNAL; connect probe
ground to PROBE COMPENSATION GND.
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