Maintenance
4-41
7
1
2
3
4
5
SHEET
Replace the
3G PA-TRX module
(Sheet E-5).
The 3G PA-TRX
module has switched
to reduced power, as
an excessive SWR
has been detected at
the insulator output
("RX" socket).
Disable transmission
(Section 3.4.4).
Reconnect cable W40
to the "RF" socket of
the 3G PA-TRX
Disconnect cable W30
from the "TX" socket of
the duplexer
Connect the power
meter power sensor
between cable W30
and the "TX"socket on
the duplexer.
No
Is the SWR correct
(< 2)?
Yes
No
Is the transmission
power measured =
34 to 35 dBm?
Yes
1
Contact the
manufacturer's
customer support
service.
Replace cable W40
(Sheet E-1) and the
duplexer (Sheet E-6).
No
Is the transmission
power correct (39 to
40 dBm)?
Yes
2
