Oce 3121 Technical & Service Manual page 169

#114 (recep) RTN has been received during reception.
Main cause
The line condition is poor. Preventing cor-
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rect reception of the image signals.
The machine malfunctions: because of an
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echo (CFR).
##200 (recep) EOL The carrier, within a reception image, cannot be detected for 5
seconds: during reception.
Main cause
The line condition is poor. Preventing cor-
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rect reception of image signals.
A CFR echo has prevented the reception of
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the training signal, causing a time-out.
ed.2
Action
Ask the other party to increase the level of
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transmission, permitting correct receipt of
the image signals.
Ask the other party to decrease the start
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speed of the transmission.
Adjust the NL equaliser, using parameter 05
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of #2 MENU.
Loosen the RTN transmission conditions,
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using 02 through 04 of #3 NUMERIC Pa-
rameters, so that RTN is not transmitted.
Prevent echoes, using SW03 of #1 SSSW.
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Decrease the level of transmission of the
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modem, using parameter 07 of #2 MENU.
Preventing receipt of an echo of the trans-
mitted CFR.
Action
Ask the other party to increase the level of
I
transmission, permitting correct receipt of
the image signals.
Ask the other party to decrease the speed of
I
the transmission.
Prevent echoes, using SW03 of #1 SSSW.
I
Decrease the level of transmission of param-
I
eter 07 of #2 MENU. Preventing receipt of
an echo of the transmitted CFR.
Trouble shooting 61