Amps - Nokia RH-13 Series Troubleshooting Manual

CCS Technical Documentation

AMPS

Fault finding chart
A pply signal to ext.
antenna connector
f= 881.4 MH z (ch 380)
mod.= 1004 H z
dev.= 8 kH z
level= -116 dB m
C onnect audio box
from the bottom
connector to audio
analyzer
SINA D < 12 dB
A pply signal to ext.
antenna connector
f= 881.409 MH z
(ch 380)
unmodulated
level= -50 dB m
C heck signal level
at diplexer Z 908
input
C heck signal level
at duplex filter
Z 906 input
C heck signal level
at L NA _a input
coil pad (L 802)
Issue 1 11/02
SINA D > 12 dB
Not O K
O K
Not O K
O K
Not O K
O K
ãNokia Corporation
RH-13
Troubleshooting
A MPS R X is O K
R eplace external
antenna connector
X 900
R eplace diplexer
Z 908
If coil L 802 is ok
replace duplex
filter Z 906
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