BRIEF CHECKING PROCEDURE
3 - 11
3.5
Horizontal section, X-deflection.
Preparation:
-
Connect a probe to the CH1 input.
-
Connect the probe tip to the Probe Adjust output socket.
-
Press the AUTOSET key.
-
Press the AMPL keys to adjust to an input sensitivity of 100mV/div.
-
Press the MAIN TB TIME/DIV keys to adjust to 100
µ
s/div.
-
Verify that a square wave as shown in fig. 3.3 is displayed.
X-defection check:
-
Press the CH2 ON key to turn CH2 on.
-
Press the CH1 ON key to turn CH1 off.
-
Press the DISPLAY menu key.
-
Press the X-DEFL softkey in the DISPLAY menu.
-
Select ’on’ and ’ch1’ as X-SOURCE in the X-DEFL menu.
-
Verify that two points with a horizontal distance of approximately 6 divisions
are displayed.
3.6
Cursors
Preparation:
-
Connect a probe to the CH1 input.
-
Connect the probe tip to the Probe Adjust output socket.
-
Press the AUTOSET key.
-
Adjust the CH1 AMPL key pair to obtain an input sensitivity of 100mV/div.
-
Adjust the MAIN TB TIME/DIV keys to100
µ
s/div.
-
Verify that a square wave with an amplitude of 6 divisions is displayed.
VOLT cursors check:
-
Press the CURSORS menu key; the CURSORS menu appears at the CRT
softkeys.
-
Use the softkeys to select ’on’ and volt cursors (=).
-
Verify that a dashed and a dotted horizontal line (the volt cursors) appear on
the screen.
-
Press the READOUT softkey and select
∆
V from the menu.
-
Press softkey RETURN.
-
Use the TRACK control to position the dashed line exactly on the bottom level
of the waveform.
-
Use the
∆
control to position the dotted line exactly on the top level of the
waveform as shown in figure 3.10.
-
Check for a volt cursor readout of approximately 600 mV in the top of the
display area.