Fault-Finding Charts For Receiver Chain - Nokia RH-41 Series Troubleshooting Instructions

CCS Technical Documentation

Fault-finding charts for receiver chain

AMPS
Apply 881.49MHz = ch
383 -116dBm, 8kHz
dev, 1 kHz sine to
external RF connector
Connect HS to cellular
tester. Open AF: 1kHz
sine meas SINAD
AF:>12 dB
Check UHF Vc (from
C773) V: 1.8...2.1V
Check RXVHF Vc
(from C740).
V:0.7...1.3
Apply 881.49 MHz
-30dBm sine signal to
external RF connector
Issue 2 09/2003
X900
Y
Y
N
N
Y
N
Y
X900
Nokia Corporation
Troubleshooting Instructions
AMPS RX chain OK
Start troubleshooting
Start troubleshooting
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RH-41
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