English
set the volume
C
ALL
’
s volume should be adjusted
to best suit the user’s needs.
The volume control is marked
Volume
on the back of
C
ALL
.
Turn the control clockwise to
increase the volume, and counter-
clockwise to decrease it.
6
5
select the frequency
The sound signal should be set to the
frequency that the user hears best.
If you already know that frequency,
follow the scheme on the left.
If you do not know the frequency,
try listening to each of the 16
frequencies until you find the
one you hear best.
The frequency is selected by
using the tuner marked
Tone
on the back of
C
ALL
.
Tone Tuner
Frequency (Hz)
0
125
1
187
2
250
3
300
4
350
5
400
6
500
7
625
8
750
9
875
A
1000
B
1400
C
1800
D
2000
E
3000
F
4000
4
C
ALL
instructions
NOTE:
Use the screwdriver
included with
C
ALL
to turn dial
to desired setting.
3328 Puzzle Call User Guide 1/16/04 4:03 PM Page 12
