Nokia RH-13 Series Troubleshooting Manual page 47

CCS Technical Documentation
C heck signal level
at R X band filter
Z 802 input
O K
C heck signal level
at mix1_B input
O K
C heck signal level
at IF filter Z 804
input (133.2 MH z)
O K
C heck signal level
at IF filter Z 804
output (133.2
MH z)
O K
C heck signal level
at R X I/Q J808,
J809, J818, J819
O K
C heck U E M and
start baseband
troubleshooting
Issue 1 11/02
Not O K
Not O K
Not O K
Measure V R 4 from L 815
and L 814 pads
C heck components
L 815,
L 814 etc.
Not O K
R eplace IF filter
Z 804
Not O K
Start synthesizer
troubleshooting
ãNokia Corporation
C heck components
around lna and
measure supply
voltages
R eplace R X band
filter Z 802
O K
Not O K
O K
RH-13
Troubleshooting
Start synthesizer
troubleshooting
O K
R eplace Safari N801
R eplace Safari
N801
Page 47