Denso BHT-1260BWB-CE User Manual page 189

[5] LCD and LED Indicator Test
Tap the "5:DISPLAY" button in the HardTest menu to perform the LCD
and LED indicator test.
The black test pattern on the right is displayed, and the LED indicator
illuminates in blue.
Press the ENT key to proceed to the next test pattern.
Press the BS key to return to the previous test pattern.
The second screen is black as shown on the right.
The LED indicator changes to red when the black screen is displayed.
The third screen is gray as shown on the right.
The LED indicator turns off when the gray screen is displayed.
Barcode Handy Terminal/2D code Handy Terminal
Hand Held Terminal
Barcode Handy Terminal
 
BS key
ENT key
 
BS key
 
BS key
ENT key
ENT key
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