13
Power on screen shortcut buttons:
S1 Makes the backlight of the LCD brighter
S2 Makes the backlight of the LCD darker
S3 Increases the volume level
S4 Decreases the volume level
S5 Software version and update date display
S6 Switch between Chinese/English
1 Quickly switches to the short circuit table function (same as [O/S])
2 Quickly switches to the learning function (same as [Learn])
3 Quickly switches to file manager (same as [File])
4 Quickly switches to conductance edit function (same as [Cond])
5 Quickly switches to the component edit function (same as [R/C/D])