Specifications

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8 NMI CHECK
The term "NMI" means Non Mask-able Interrupt with CPU.
Pressing 7 button, the following display appears.
PLEASE NMI
Press RESET button on the back of BN Unit using a thin, pointed object.
The following display appears.
RESET KEY
If the AC adapter(AD-A70140) is inserted into the jack, and its output voltage is less than DC
4.4V the following display appears.
DET5V
Then pressing ESC button, OTHERS MENU display appears.
9 EL ON CHECK (BN-20 only)
Pressing 8 button, the blue back light is emitted.
@ EL OFF CHECK (BN-20 only)
Pressing 9 button, the blue back light is disappeared.
Then pressing ESC button, TEST MENU display appears.
A END(END)
Pressing 10 button, the following display appears.
THE UNIT IS BEING INITIALIZED.
PLEASE WAIT.
Then CLOCK MODE display appears.