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WLAN troubleshooting
Troubleshooting flow
GPS troubleshooting
Introduction to GPS troubleshooting
GPSCost5.0D is a single chip GPS receiver, comprising both RF and BB blocks integrated in a single digital die.
GPSCost5.0D is connected to RAPU ASIC via I2C_1 and some GENIOs. GPSCost5.0D operates in Multi-master
mode and the REF clock is requested via CAL_REQ signal connected to RAPU genio46. REFOUT_EXT2 single
ended 38.4 MHz analog clock from Linko RF is provided to GPSCost5.0D.
The GPS components are located on the bottom side of the PWB. Satellite signals are picked up by the GPS
antenna and the signal is then processed by the BCM4751 receiver ASIC.
RM-779
BB Troubleshooting and Manual Tuning Guide
Issue 1
COMPANY CONFIDENTIAL
Page 3 – 57
Copyright © 2011 Nokia. All rights reserved.
Содержание 603
Страница 147: ...RM 779 Cellular RF troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 19 Copyright 2011 Nokia All rights reserved ...
Страница 175: ...6 System Module Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 6 1 Copyright 2011 Nokia All rights reserved ...
Страница 181: ...RM 779 System Module Issue 1 COMPANY CONFIDENTIAL Page 6 7 Copyright 2011 Nokia All rights reserved ...
Страница 185: ...Power distribution RM 779 System Module Issue 1 COMPANY CONFIDENTIAL Page 6 11 Copyright 2011 Nokia All rights reserved ...
Страница 186: ...Clock scheme RM 779 System Module Page 6 12 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...
Страница 219: ...Glossary Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page Glossary 1 Copyright 2011 Nokia All rights reserved ...