EZ Digital OS-5060A, Operation Manual

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immediately after ward. Also, get in the habit
of turning the brightness way down if the scope
is left unattended for any period of time.
4. Turn the FOCUS control (4) for a sharp trace.
5. Turn the CH1 Vertical POSITION control (19) to move the CH1 trace to the
center horizontal graticule line.
6. See if the trace is precisely parallel with the graticule line. If it is
not, adjust the ROTATION control (5) with a small screwdriver.
7. Turn the Horizontal POSITION control (26) to align the left edge of the
trace with the left-most graticule line.
8. Set one of the supplied probes for 10X attenuation. Then, connect its BNC end
to the CH1 or X IN connector (9) and its tip to the CAL connector (33).
A square-wave display, two and a half divisions in amplitude, should appear
On the CRT screen.
9. If the tops and bottoms of the displayed square waves are tilted or peaked,
the probes must be compensated (matched to the scope input capacitance).
Adjust the capacitance correction trimmer of the probe with a small
Screwdriver. See Figure 2-2
10. Set the V MODE switch (19) to CH2, and perform Steps 8 and 9 with the other
probe on channel 2.
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