Instructions

8
Fig 3-3
3.3.3 VERTICAL SYSTEM OPERATION
(1) VOLTS/DIV switch should be turned to the correct position following the input signal
range. Adjust position [16] to show the whole waveform within the available area.
Adjust with VAR [17] if necessarily, trimming ratio is 2.5:1.
(2) Input coupling options: “DC”is used for observing a signal with a direct current
content such as logic or static signals, “DC” must be used with low frequency. “AC”
is used for observing the AC component of signals. “⊥” (ground) is used to establish
a trace at a zero volt reference.
(3) X-Y OPERATION: When [11] set at EXT/X, The oscilloscope is used for X-Y
operation, at this moment Input [19] is Y-axis with the same sensitivity, Input [13] as
X-axis, [14] can be adjusted continuously within 0.2V/DIV~0.5V/DIV.
3.3.4 TRIGGER SOURCE
In Fig 3-1, [12] provides 3 sources for selection, INT trigger, EXT trigger input from
[13], LINE input from power source.
3.3.5 HORIZONTAL SYSTEM OPERATION
(1) Sweep setup : turn the sweep switch to the correct position according to the signal
frequency and adjust POSITION [7] to show the whole waveform within the available
area. Adjust with VAR [8] if necessarily, trimming ratio is 2.5:1.
(2) There are 3 kinds of Trigger sources: [11] “AUTO”auto sweep, when a triggering
signal is applied, Level [9] will adjust to correct position. The screen showing a steady