Denso BHT-8000 User Manual page 45

(2) Press the 2 key while holding down the SF key again. The screen will switch to the following:
[1] YES: Run Scandisk and start the System.
[2] NO: Turn the BHT off.
(3) Choose YES or NO with the numerical keys and press the ENT key.
When Scandisk is in progress, the following message is displayed:
If Scandisk finds an invalid file(s), the following screen will appear. As long as an invalid file exits,
that screen displays every time the BHT System is started up.
(4) Press the 2 key while holding down the SF key. The screen will switch to the following:
(5) Press the ENT key to start up the BHT System.
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