(Synchronizing TV-Vertical and TV-Horizontal only in the case of synchronous signals are negative pulses)
Time base
29)
Horizontal sweep speed switch: Sweep speed is divided into 20 steps, from 0.2 S/div to 0.5S/div. And set X-Y
position can use as X-Y oscilloscope.
30)
Horizontal fine tune: Fine tuning the time of horizontal sweep, in order to calibrate the sweep time in accordance
with TIME/DIV on panel. The sweep speed of TIME/DIV is continuously changed, when you anticlockwise go
round and round the base, that is the calibration location. The total delayed time is above 2.5 times.
32)
horizontal position: Adjust the horizontal position of trace on screen.
31)
Sweep expand switch: Sweep speed will be magnified 10 times by pressing it.
Others:
1)
CAL: Provide square signal with 2Vp-p amplitude and 1kHz frequency, which is used in calibrating compensate
capacitor of 10:1 probe, also detecting the vertical and horizontal deflection factor of oscilloscope.
15)
GND: Grounding terminal of oscilloscope case.
2.
Features of rear panel: (See fig.2)
34)
AC Power: AC Power input jack, AC power wire connects here.
35)
Supporter: For supporting the oscilloscope and lead out the power cord.
Operation methods
3.
Basic operation: Single channel operation
Make sure whether the voltage of the unit is in accordance with your local voltage before switch on, then adjust
the relative control components according to the following form: (Form 4)
(
)
Functions
No.
Setting
POWER
6)
OFF
INTEN
2)
Centralize
FOCUS
3)
Centralize
VERT MODE
14)
CH1
ALT/CHOP
12)
Released(ALT)
CH2 INV
16)
Released
POSITION
11) 19)
Centralize
VOLTS/DIV
7) 22)
0.5V/DIV
VARIABLE
9) 21)
CAL(Calibration position)
AC-GND-DC
10) 18)
GND
Source
26)
+
TRIG.ALT
27)
Released
TRIGGER MODE
25)
Automatic
TIME/DIV
29)
0.5mSee/DIV
SWP.VER
30)
Calibration position
POSITION
32)
Centralize
X10 MAG
31)
Released
After setting the switch and control part, connect power cord, continue:
Switch on, power indicator on , traces appear on screen in about 20s. If no traces appear in 60s, check the settings of
