Canon imageRUNNER 1750 Series Service Manual page 306

Tonal/DTMF Signal Reception Test
A press on '6' on the keypad from the MODEM test menu selects the tonal signal/DTMF signal
reception 0 test. In this signal, the tonal signal/DTMF signal received from the telephone line
terminal can be checked to find out if it was detected by the modem.
Tonal signal reception test
MODEM TEST
OFF OFF OFF
OFF OFF OFF
changes from '0' to '1' in response to detection of a signal of 462±25Hz.
changes from '0' to '1' in response to detection of a signal of 1100±30Hz.
changes from '0' to '1' in response to detection of a signal of 2100±25Hz.
DTMF signal reception test
MODEM TEST
OFF OFF OFF 5
The received DTMF signals are indicated starting
from the right using the 2nd character of the display.
V.34 G3 Signal Transmission Test
A press on '8' on the keypad from the MODEM test menu selectes the V.34 G3 signal
transmission test. The V.34 G3 signals below are sent from the modem using the modular
jack and the speaker by pressing the start key. The Baud rate can be changed with the
keypad, and the Speed can be changed with the left/right arrow key.
Keypad
0
1
2
3
4
5
8
Service Mode > Details of Service Mode > #TEST MODE > Details
F-8-16
Baud rate
3429baud
3200baud
3000baud
2800baud
2743baud
2400baud
T-8-70
8 Service Mode > Details of Service Mode > #TEST MODE > Details
Left/right arrow key Transmission speed
<
>
● FUNCTION Test <(6) FUNCTION TEST>
Press the numeric keypad key 6 on the test mode menu to select the function test.
Press numeric keypad keys 1 to 4 and 9 during the function test to enter the menus listed
below.
Keypad Type
1 G3 signal transmission test Transmits 4800-bps G3 signals to a telephone line and
speaker
2 Sensor test Sensor actuation test
3 Accessory
4 ADF test ADF operation test
5 Not used
6 Not used
Panel test To test operation of the Touch Panel.
7
8 Not used
9 Line signal reception test NCU board signal sensor and frequency counter operation
test
G3 signal transmission test (6-1: G3 480 bps Tx)
Press numeric keypad key 1 on the FUNCTION TEST menu to select the G3 signal
transmission test.
This test transmits 4800-bps G3 signals from the telephone line connection terminal and
speaker.
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2400bps
4800bps
7200bps
9600bps
12000bps
14400bps
16800bps
19200bps
21600bps
24000bps
26400bps
28800bps
31200bps
33600bps
T-8-71
Description
T-8-72
8-57