GW Instek GOS-630FC - Manual (Page 17)

MEASUREMENT
33
5. To adjust the Y‐axis position and
deflection, use the CH2 vertical
POSITION knob (position) and
CH2 VOLTS/DIV knob
(deflection).
Waveform Magnification
Background The oscilloscope can magnify the waveform by ten
times in the horizontal direction. The
magnification is useful for observing complex
signals.
Steps
1. Make sure the waveform is shown on the
display.
2. Press the ×10 MAG switch. The
waveform becomes magnified
by ten times in the horizontal
direction.
x10 magnification
Any part can be covered by using the POSITION control
GOS-630FC User Manual
34
F
AQ
The probe waveform is distorted.
You might need to compensate the probe. For details, see page26.
Note that frequency accuracy and duty factor are not specified for
the probe compensation waveform and therefore it should not be
used for reference purpose.
The trace line does not appear on the display.
Make sure that the trigger mode is in the AUTO mode. In the
NORMAL mode, the trace does not appear unless a trigger
condition occurs.
The alternate trigger (TRIG ALT switch) does not work.
Make sure that the ALT/CHOP switch is released (ALT position).
The TRIG ALT switch does not work in the CHOP mode.
The frequency counter in the LCD display does not work.
Make sure that the TRIG ALT switch is not pressed. The frequency
counter does not work in the alternate trigger mode.
The TV trigger does not work.
Make sure that the video synchronization signal is positive. The TV‐
V/TV‐H trigger works only when the synchronization signal is
negative.