Nokia RH-41 Series Troubleshooting Instructions page 28

RH-41
Troubleshooting Instructions
AMPS, PL2, CH383
Visual check of TX
-PA
-TX SAW
-Duplex filter
-Passive components
-PA
OK
Start synthesizer
troubleshooting
OK
Check supply voltage
-VR2
-VBATTRF
-VR5
-IPA1
OK
Check TXi/q signals
test points J901...J904
OK
Check Z960 input and
Check Z960 input and
output power
output power
out:-20dBm+3/-6dB
out:-20dBm+3/-6dB
IL:2dB
IL:2dB
OK
Check TX RF
from balun T961
(836.49MHz) output
input RF:0dBm+/-6dB
power from balun
T961 input RF:
0dBm+/-6dB
OK
Page 28
Check UEM and UPP
NOK
NOK
Change Taco or Z960
NOK
or Z960
NOK
Nokia Corporation
CCS Technical Documentation
(baseband)
Check UEM
(baseband)
Taco
Taco
Change Taco
Confidential Issue 2 09/2003