User Guide

CCS Technical Documentation Troubleshooting
NPM-2NX
Issue 1 07/02 ãNokia Corporation Page 37
Apply signal to ext .
antenna connector
f= 1960.06771
( ch 661)
unmodulate
level= -83 dBm
Check signal level
at RX I/Q J808,
J809, J818, J819
STEP 3.
OK
GSM1900 RX is
OK
Not OK
According STEP 4.
Check signal level
at diplexer Z908
input
Replace external
antenna connector
X
900
Not OK
OK
Check signal level
at duplex filter
Z962 input
Replace diplexer
Z908
Not OK
OK
Check signal level
atLNA V804 input
Replace duplex
filter Z962
Not OK
OK