Nokia RM-11 Series - PCS Band Tx Probe Points

RM-11
Troubleshooting - RF CC Technical Documentation
Page 48 ©2005 Nokia Corporation Confidential Issue 2 09/2005
PCS Band Tx Probe Points
Use PDM settings from previous section. Following are the approximate power levels you
should expect for PCS BAND (Channel 600):
1. C 660 Output of N601, input to N602
Probed power
≅-2dBm (If not, then replace N601)
2. C 627 Output of split-band filter (Z601)
(Gain
≅10.5dB – (filter loss 2.3dB) ≅ 8.2dB)
Probed power
≅ 7dBm (If not, then replace N601)
3. C802 Output of the Tx Switch (Loss
≅ 1dB)
Probed power
≅ +6dBm (If not, then replace switch)
4. C803 Output of PCS PA (use 10dB pad on probe or just sniff part)
Probed power
≅ +18dBm (If not, then replace PCS PA)
5. C809 IREF into PCS PA should be
≅ 2.7V (If not, trace back to N601 and then
to BB)
PCS Duplexer
PCS PA
5
4
3
2
1