Elenco Upgrade Kit SC300 to SC750 - Manual (Page 157)

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IMPORTANT NOTE: The designs for the microphone input port
vary throughout the computer industry.
Hence you may get
waveforms different from those shown in your manual even
though the circuit is actually performing the same way. Here are
some types of differences:
A. The gain of your microphone input may be significantly
different from that indicated on pages 8-10 (and similarly
for the other circuits). Page 4 describes how to turn on
the microphone input and adjust its volume to about 40%
of max, you may want to adjust this volume higher or
lower so that your results better match those shown. Note
that having the volume set too high may “clip off” the top
or bottom portion of a waveform.
B. The oscilloscope waveforms shown on your display may
appear upside down (“inverted”) from those shown
throughout this document.
For example the waveform
shown on the top of page 10 would look like this:
If this is the case then swap the connections of the red and black
clips of the Winscope probe in all circuits.
C. The shape of waveforms may appear distorted for some
circuits, due to protection circuitry that acts as a filter. For
example:
Looking at Electronic Signals using the WINSCOPE Software (continued)
This waveform . . . might look like this.
And this waveform . . . might look like this.
And this waveform . . . might look like this.
Contact Elenco ® Electronics if you have any questions about this.