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[5.8]
Key entry & beeper test
TEST KEY & BEEPER
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.
32-key pad
Key
Letter
Beeper (Hz)
C
I
174
ALP
J
195
SF
K
220
L
246
M
261
N
293
O
329
M1
P
349
F9
Q
391
F10
R
440
M2
S
493
26-key pad
Key
Letter
Beeper (Hz)
BS
I
261
C
J
293
SF
K
329
M3
N
349
M1
L
391
M2
M
440
M4
O
493
7
7
523
8
8
587
Chapter 2. Getting Started the BHT-7000 and System Mode
Selecting "8:KEY" on the TEST menu calls up the
screen shown at left and makes the BHT ready for
entry from the keypad.
Pressing individual keys displays the identifier let-
ters in the positions pre-assigned to those keys on
the LCD as well as sounding the beeper. (As long
as the individual key is held down, the BHT contin-
ues beeping.)
Pressing the same key again erases the displayed
letter.
Key
Letter
Beeper (Hz)
M3
T
523
M4
U
587
7
7
659
8
8
698
9
9
783
4
4
880
5
5
987
6
6
1046
1
1
1174
2
2
1318
3
3
1396
Key
Letter
Beeper (Hz)
9
9
659
4
4
698
5
5
783
6
6
880
1
1
987
2
2
1046
3
3
1174
0
0
1318
.
.
1396
71
Key
Letter
Beeper (Hz)
0
0
1567
.
.
1760
ENT
=
1975
F1
A
2093
F2
B
2349
F3
C
2637
F4
D
2793
F5
E
3135
F6
F
3520
F7
G
3951
F8
H
4186
Key
Letter
Beeper (Hz)
ENT
=
1567
F1
A
1760
F2
B
1975
F3
C
2093
F4
D
2349
F5
E
2637
F6
F
2793
F7
G
3135
F8
H
3520
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