Nokia NPM-2NX Troubleshooting Manual page 37

CCS Technical Documentation
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.
Not OK
According STEP 4.
Check signal level
at diplexer Z908
input
Check signal level
at duplex filter
Z962 input
Check signal level
atLNA V804 input
Issue 1 07/02
OK
GSM1900 RX is
Not OK
OK
Not OK
OK
Not OK
OK
ãNokia Corporation
OK
Replace external
antenna connector
X900
Replace diplexer
Z908
Replace duplex
filter Z962
NPM-2NX
Troubleshooting
Page 37