NOKIA 07-tme3-trouble free download

File name 07-tme3-trouble.pdf

Programmes After Market Services TME-3 Series Transceivers Disassembly and Troubleshooting Issue 3 10/03 Nokia Corporation. TME-3 Disassembly and Troubleshooting PAMS Technical Documentation [This page intentionally blank] Page 2 Nokia Corporation. Issue 3 10/03 TME-3 PAMS Technical Documentation Disassembly and Troubleshooting Table of Contents Page No Introduction to troubleshooting... 5 Disassembly of TME-3 ... 6 RF Troubleshooting ... 9 Introduction to RF troubleshooting ...9 Component notes:... 9 Component handling: ... 9 Measurement notes:... 9 RF Key component placement ...10 RF Measurement points ...11 GSM900 & GSM1800 Transmitter ...12 General instructions for Transmitter (Tx) troubleshooting ... 12 Transmitter troubleshooting diagrams ...14 Oscilloscope screen shots of transmitter signals ... 17 GSM900 & GSM1800 Receiver ...20 General instructions for Rx troubleshooting ... 20 LNA gainstep checking GSM900 & GSM1800 ...24 Synthesizer ...25 General instructions for synthesizer troubleshooting... 25 Pictures of synthesizer signals...