Instructions
3.Junior User Guidebook 
10 
25. The reading shows the setting of main time base. 
26. It is cursor measure window, showing the absolute values and the readings of the 
cursors. 
27. The  blue  pointer  indicates  the grounding datum point (zero point position) of the 
waveform of the CH2 channel. If the pointer is not displayed, it means  that this 
channel is not opened. 
28. The yellow pointer indicates the grounding datum point (zero point position) of the 
waveform of the CH1 channel. If the pointer is not displayed, it means  that the 
channel is not opened. 
How to Implement the General Inspection  
After you get a new oscilloscope, it is recommended that you should make a check on the 
instrument according to the following steps: 
1.  Check whether there is any damage caused by transportation.  
If it is found that the packaging carton or the foamed plastic protection cushion has 
suffered serious damage, do not throw it away first till the complete device and its 
accessories succeed in the electrical and mechanical property tests.  
2.  Check the Accessories  
The supplied accessories have been already described in the "Appendix A: Enclosure" 
of this Manual. You can check whether there is any loss of accessories with reference 
to this description. If it is found that there is any accessory lost or damaged, please get 
in touch with our distributor responsible for this service or our local offices. 
3.  Check the Complete Instrument   
If it is found that there is damage to the appearance of the instrument, or the 
instrument can not work normally, or fails in the performance test, please get in touch 
with our  distributor responsible for this business or our local offices. If there is 
damage to the instrument caused by the transportation, please keep the package. With 
the transportation department or our distributor responsible for this business informed 
about it, a repairing or replacement of the instrument will be arranged by us. 
How to Implement the Function Inspection 
Make a fast function check to verify the normal operation of the instrument, according to 
the following steps:  
1.  Connect the power cord to a power source. Long press the 
button on the 
bottom left of the instrument. 
The instrument carries out all self-check items and shows the Boot Logo. Push the 
Utility button, select Function in the bottom menu. Select Adjust in the left menu, 










