User Guide

NHM-8NX

Troubleshooting Instructions PAMS Technical Documentation

Page 24 ãNokia Corporation Issue 1 05/02

Figure 6: Supply points at UEM (D200)

Figure 7: Supply point at Mjoelner (N600)

Receiver

General Instructions for GSM900 RX Troubleshooting

Connect the phone to a PC with the module repair jig.

Start Phoenix and establish connection to the phone

Select File. Select Scan for Product Ctrl-R

Select Maintenance, Testing and then RF Controls

VR2=Vtx (C643)

VR7=Vvco (C224)

VR5=Vpll (C226)

VR3=Vvcxo (C227)

VR6=Vrx (C225)

Vref01=Vref2 (C23

Vio = Vbb

(C621)