Canon iR1200 Series, Service Manual

Page: 471 / 494

Chapter 15
15-63
Relay Test
Press '1' on the keypad on the Modem NCU Test menu to select relay test mode. Use the keypad to operate the various
relays of the NCU.
The 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 LCD to check a fault on a single relay.
F-15-19
Frequency Test
A press on '2' on the keypad from the MODEM NCU 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, use the keypad.
T-15-53
MEMO:
The frequency and the output level of individual frequencies are in keeping with the output level set in service mode.
V.34 G3 signal transmission
test The modem sends V.34 G3 signals from the
modular jack and speaker.
Keypad Frequency
1 462 Hz
2 1100 Hz
3 1300 Hz
4 1500 Hz
5 1650 Hz
6 1850 Hz
7 2100 Hz
Type Description
RELAY 1 010000
1-1 : P ON
1 : relay ON
2 : relay OFF
0 1 0 0 0 0
Relay CML P S H D R
Keypad 0 1 2 3 4 5