Nokia RH-41 Series Troubleshooting Instructions page 29

CCS Technical Documentation
Check TX SAW input
and output power
IL:-3dB
OK
Is ltot 700...900 mA?
Check PA output
power and gain.
Output power:
~28dBm
Gain: ~30dB
OK
Check PWRDET
(N930) insertion loss
IL<0.3dB
OK
Check duplexer (Z906),
diplexer (Z907) and RF
connector (X900)
insertion loss.
Dupl IL ~2.2dB
Dipl ~0.35dB
RF conn ~0.1dB
OK
Start power control
troubleshooting
Issue 2 09/2003
Change TX SAW filter
NOK
(Z905) or (T961)
Change PA (N901)
NOK
Change PWRDET
NOK
Change Z906 or Z907
NOK
or RF connector
Figure 12: Fault tree. Transmitter troubleshooting
Nokia Corporation
Troubleshooting Instructions
or T961
(N930)
Confidential
RH-41
Page 29