User Guide

NSD-5
10. Troubleshooting PAMS Technical Documentation
Page 30 Nokia Corporation Issue 1 05/02
Trouble Case 2: Rx VHF LO Power < -12dBm
Check the DC level of V506.
DC level of Pin 1 > 1V, Pin 2 0.7 0.8V, Pin3 > 2V, between Pin 1 and Pin 2 from 0.6 to
0.8V
If not, change V506.
Trouble Case 3: UHF LO Power < -5dBm
Check the DC level of V502.
DC level of Pin 1 > 0.5V, between Pin 1 and Pin 2 from 0.6 to 0.8V
If not, change V502.
Trouble Case 3: Rx UHF LO Power < -5dBm
Change G502.