示波器说明书
CONTROLS AND CONNECTORS
1POWER
Turns instrument power on and off.LED light indicates instrument power on.
2INTENSITY
The knob controls brightness of the display the brightness is increased clockwise.
3FOCUS
After obtaining an appropriate brightness by operating intensity then adjust focus until the bright line is clearest.
4BEAM FIND
As the pushbotton is pressed,the beam trace can be limitted in the center area of screen,if thetrace is out of the screen,press this button and the beam trace can be found.
5COMP TEST
Component tester input banana jacks are used in component test function refer item 20.The black jack is connected to chassis ground.
6CH1 OR Y
Input BNC connector for channel I deflection signals or Y-axis deflection in the X-Y mode operation.The input resistance is 1 megohm paralled with 25 picofarads capacitance.
7.8.DC-GND-AC:input Coupling Switch
Selecting input connection mode for CHI(7),CHⅡ(8)
DC:dc coupling,all signal are directly connected to attenuator.
GND:ground,the input signal is switched off and the attenuator is short to ground.
AC:ac coupling,block the DC signal of input signal only AC signal pass into attenuator.
9.CHⅡ OR X
Input BNC connect for channel 2 deflection signals or X-axis deflection in the x-y mode operation.The input resistance is 1 megohm paralled with 25 picofarads capacitance.
10.11.CHI VOLT/DIV.CHⅡ VOLT/DIV
Attenuator for ch1 and ch2 The attenuator selects deflection factor from 5v/div to 5mv/div in 1-2-5 sequence.10 positions.VAR control must be in the calibrated position.
12.14 VAR
VAR for CHI(12).CHⅡ(14) provides continuously variable uncalibrated deflection factors between the calibrated setting of volt/div switch.Turns VAR knobs to maximum clockwise will increase sensitivity five time.
13.15.Y-POSI,Y-POSⅡ
Position adjusting for CHI(13).CHⅡ(15) The X-Y mode of operation,the CH1controls y-axis (vertically),the X-POS controls x-axis(horizontally)position.
16CHI/CHⅡ
Selects CHI or CHⅡ vertical operation,released pushbotton is CHI operation and pressed is CHⅡ.
17.MONO/DUAL
Select dual traces or single trace of vertical operation mode
Released pushbotton:single trace (MONO)
Pressed pushbotton:dual traces (DUAL)
18.ALT/CHOP
The ALT/CHOP pushbotton has two functions as pushbotton is pressed only others push botton in the vertical section are all released.CHI and CHⅡ will be added this function is marked in the right side of button when push botton is used in dual trace of vartical operation mode (mono/dual pressed) the button selects the dual traces mode operating in alternative or chop form.