Toshiba E-STUDIO190F Service Manual page 173

5.2.5.2. Tonal Signal
This Service Mode is used to check the tonal signal output. Signals can be output to the line using the
following procedure.
Press the "V", "/\" arrow keys to select the "4: MODEM Test" on the display.
↓
Press the "SET" key.
↓
Press the "V", "/\" arrow keys select the "1: LINE-1".
↓
Press the "SET" key to select the "2: Tonal Test".
↓
Press the "SET" key.
↓
Press the desired number and press the "START" key.
↓
Press the "STOP" key twice to exit the service mode.
Tonal Signal Table
Number Signals
1 462 Hz
2 1080 Hz
3 1100 Hz
4 1300 Hz
5 1650 Hz
6 1850 Hz
7 2100 Hz
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