Maintenance
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SHEET A-6
Replace the
3G PA-TRX module
(Sheet E-5).
Check the condition of
the antenna and
connect the antenna
correctly to the
IDR IDO 3G
Disconnect cable W13
from the "RF" socket of
the 3G PA-TRX module
Connect the power
meter power sensor
between the "RF"
socket on the
3G PA-TRX module and
cable W40. Power up
the power meter and the
IDR IDO 3G.
Commission the
IDR IDO 3G with a
power of 4 W
(Section 3.3.1).
Measure the SWR and
transmission power.
Transmission
malfunction.
If an alarm is
displayed, refer to
Sheet A-1.
If no alarm is displayed
but an abnormal
reduction in
radio-electric
coverage has been
noted during
communication,
replace the duplexer
(Sheet E-6).
For other cases
contact the
manufacturer's
technical support
service.
No
Transmission alarm
displayed?
Yes
No
"CHAINE_RADIO_
RX1 or 2" alarm
displayed?
Yes
Otherwise, check that
transmission is
enabled (Section
If the IDR IDO 3G
transmits and the
green TX LED
off, change the
synchronisation board
(Sheet E-3).
If the fault persists,
replace by order of
priority the link cable
(Sheet E-1) and the
converter (Sheet E-8)
If the fault persists,
contact the
manufacturer's
technical support
service.
No
Green TX LED
off?
Yes
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