NOKIA 07-rh19-rh50-rf-troublesht free download

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Nokia Customer Care RH-19/RH-50 Series Cellular Phones 7 - RF Description and Troubleshooting Issue 3 05/2004 2004 Nokia Corporation. Page 1 Company Confidential RH-19/RH-50 Company Confidential 7 - RF Description and Troubleshooting Nokia Customer Care This page has been intentionally left blank Page 2 2004 Nokia Corporation. Issue 3 05/2004 Company Confidential RH-19/RH-50 Nokia Customer Care 7 - RF Description and Troubleshooting Table of Contents Page No RF Description and Troubleshooting ... 5 Introduction ... 5 RF key component placement ... 7 RF test points ... 8 Receiver ... 8 Transmitter ... 9 Synthesizer ... 9 RF in General...10 RF power supply configuration ...12 General specifications of transceiver RH-19/RH-50 ...13 Receiver Description and Troubleshooting...14 General instructions for RX troubleshooting ...14 Measuring RX I/Q signals using RSSI reading ...14 Measuring RX performance using SNR measurement ...16 Measuring front-end power levels using spectrum an