Denso BHT-7000 - Manual (Page 82)

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Selecting "5:LCD" on the TEST menu calls up the
test pattern shown at left on the LCD and turns on
the indicator LED in green.
Each time the ENT key is pressed, the screen
shifts to the next test pattern. To return to the
previous screen, press the BS key.
To stop this test while in progress, press the C
key.
[5.5] LCD and indicator LED tests
As shown at left, everything disappear and the
indicator LED lights in red.
The checker pattern shown at left appears and the
indicator LED goes off.
The checker pattern is reversed.
⇑ ⇓
⇑ ⇓
ENT key
ENT key
BS key
BS key
⇑ ⇓
⇑ ⇓
ENT key
ENT key
BS key
BS key