Denso BHT-300B User Manual page 98

[5.8] Key-entry, beeper and vibrator test
The table below shows the relationship between the keys, the identifier letters to be displayed on the
LCD, and the frequencies (Hz) of the beeper.
Key Letter
M3 N
M1 L
M2 M
M4 O
7 7
8 8
9 9
4 4
5 5
(Note) Only when the M3 (left-hand trigger switch) or M4 key (right-hand trigger switch) is pressed, the vibrator works.
On the TEST menu, selecting "8: KEY & VIBRATION" calls up the
screen shown at left and makes the BHT ready for entry from the
keypad.
Pressing individual keys displays the identifier letters in the positions
pre-assigned to those keys on the LCD as well as sounding the
beeper or running the vibrator. (As long as the individual key is held
down, the BHT continues beeping or vibrating.)
Pressing the same key again erases the displayed letter.
Beeper (Hz) Key
(Note) 6
293 1
329 2
(Note) 3
391 0
440 .
493 ENT
523 F1
587 F2
After all keys are pressed and displayed on the LCD, this test
automatically ends and the screen returns to the TEST menu.
To stop this test, turn the BHT off.
Letter Beeper (Hz)
6 659
1 698
2 783
3 880
0 987
. 1046
= 1174
A 1318
B 1396
84
Key Letter Beeper (Hz)
F3 C 1567
F4 D 1760
F5 E 1975
F6 F 2093
F7 G 2349
F8 H 2637
BS I 2793
C J 3135
SF K 3520