Modem Test; Relay Test (Relay-1); Frequency Test (Freq) - Canon Super G3 FAX Board-AH1 Service Manual

5
Service Mode Service Mode > Test Mode (TEST) > MODEM Test > Frequency Test (FREQ)

MODEM Test

■ Relay Test (RELAY-1)

Use it to see if the individual relays on the NCU board go on and off as expected.
Sssw Menu Num Ncu Type
<MODEM> <RELAY-1>
CML OFF
P OFF
S OFF
H
OFF
D
OFF
R
OFF
Using Text Mode
1) From the relays indicated on the screen, select the one you want to test; then, turn it off
or on using the Up/Down key. (Some of the relays may not actually exist on the NCU
board.)
5 Service Mode > Test Mode (TEST) > MODEM Test > Frequency Test (FREQ) Service Mode
ISDN Print Clear Test Report
<READY>
<1/1>
OK
F-5-15

■ Frequency Test (FREQ)

Of the items indicated below, press one; in response, the DC circuit will be closed and the
selected frequency will be transmitted using the tone transmission function of the modem.
You can also monitor the transmission signal by listening to the sound generated by the
speaker. To stop the operation and end test mode, press the
Sssw Menu Num Ncu Type
<MODEM> <FREQ>
RBT
462Hz
1100Hz
1300Hz
1500Hz
1650Hz
1850Hz
2100Hz
Caution:
'RBT' is not currently supported.
5-21
key.
ISDN Print Clear Test Report
<READY>
<1/1>
OK
F-5-16
5-21