Denso BHT-7000 User Manual page 82

⇑ ⇓
BS key ENT key
⇑ ⇓
BS key ENT key
⇑ ⇓
BS key ENT key
An outline with a width of one dot appears.
The fine checker pattern appears.
The fine checker pattern is reversed.
Two right-angled triangles appear.
Press the ENT key, and the BHT beeps once and
returns to the TEST menu.
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