Toshiba e-studio191f Service Manual page 178

5.2.5.3. DTMF Signal
This Service Mode is used to check the DTMF (Dual Tone Multi Frequency) signal output.
The DTMF signal can be generated using the following procedure.
• DTMF Single Tone
Press the " ", "
↓
Press the "Set" key.
↓
Press the " ", "
↓
Press the "Set" key.
↓
Press the " ", "
↓
Press the desired number and press the "Start" key.
↓
Press the "Stop" key twice to exit the service mode.
• DTMF Dual Tone
Press the " ", "
↓
Press the "Set" key.
↓
Press the " ", "
↓
Press the "Set" key.
↓
Press the " ", "
↓
Press the desired number and press the "Start" key.
↓
Press the "Stop" key twice to exit the service mode.
DTMF Single Tone Table
Number
1
2
3
4
5
6
7
8
" keys to select "4: MODEM Test".
" keys to select the "3: DTMF Test".
" keys to select "1. Single".
" keys to select "4: MODEM Test".
" keys to select the "3: DTMF Test".
" keys to select the "2. Dual".
DTMF Signal Tones
697 Hz
770 Hz
852 Hz
941 Hz
1209 Hz
1336 Hz
1477 Hz
1633 Hz
DTMF Dual Tone Table
Number
0
1
2
3
4
5
6
7
8
9
*
#
178
DTMF Dual Tones
941 Hz + 1336 Hz
697 Hz + 1209 Hz
697 Hz + 1336 Hz
697 Hz + 1477 Hz
770 Hz + 1209 Hz
770 Hz + 1336 Hz
770 Hz + 1477 Hz
852 Hz + 1209 Hz
852 Hz + 1336 Hz
852 Hz + 1477 Hz
941 Hz + 1209 Hz
941 Hz + 1477 Hz
DP-1910F