Canon imageRUNNER 2520 Series, Service Manual, Page: 306 / 402

Keypad Type Description
6 Tonal signal reception test Use it to monitor a specific frequency and the DTMF signal received from the
telephone line terminal by causing them to be indicated on the LCD (i.e., the
presence/absence as detected). The reception signal is generated by the speak-
er.
8 V.34 G3 signal transmission test The modem sends V.34 G3 signals from the modular jack and the speaker.
Relay Test
Press '1'or '2' on the keypad on the Modem test menu to select relay test mode.
Use the keypad to operate the various relays of the NCU. '2' on the keypad is used for 230V machine.
Numeric keypad key 1
The input key and relay are shown below:
RELAY TEST1 OFF OFF
OFF OFF OFF OFF
ࠉࠉࠉࠉ
[1] [2] [3] [4] [5] [6]
Relay
ࠉ
CML P S H D R
Keypad
ࠉ
0 1 2 3 4 5
[1] [2]
[3] [4] [5] [6]
Numeric keypad key 2
The input key and relay are shown below:
RELAY TEST2 OFF OFF
OFF OFF OFF OFF OFF
Relay
Keypad
[1] [2]
[3] [4] [5] [6] [7]
CITS2 C1
[1]
IPSEL2 IPSEL1 DCLIM DCSEL NORG
[2] [7] [6] [5] [4] [3]
0 6 5 4 3 2 1
CAUTION:
The touch panel (LCD) is turned on or off in relation to the transmission of the relay operation signal as is operated on the
keypad; for this reason, you cannot use the touch panel (LCD) to check a fault on a single relay.
Frequency Test
A press on '2' on the keypad from the MODEM test menu selects the frequency test.
In this test, signals of the following frequencies from the modem are transmitted using the telephone line terminal and the speaker.
To select a different frequency,
Keypad Frequency
1 462Hz
2 1100Hz
3 1300Hz
4 1500Hz
5 1650Hz
6 1850Hz
7 2100Hz
8. Service Mode
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