Denso BHT-700QWB-CE User Manual page 123

A gray screen displays with a one-dot wide white outline.
Forty eight right-angled triangles display.
A gradation pattern displays filling the entire screen.
Press the ENT key to return to the HardTest menu.
2D Code Handy Terminal
⇑ ⇓
BS key
⇑ ⇓
BS key
ENT key
ENT key
105