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Nokia RM-313 Service Manual Page 127

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RM-313
RF troubleshooting
General RF troubleshooting ..................................................................................................................................4–5
Introduction to RF troubleshooting ................................................................................................................4–5
RF key components ...........................................................................................................................................4–6
Auto tuning for BB5.0 ............................................................................................................................................4–6
General checkings...................................................................................................................................................4–7
Antenna line component checking..................................................................................................................4–7
Voltage checking ...............................................................................................................................................4–7
Self test
troubleshooting....................................................................................................................................
Receiver troubleshooting
Introduction to receiver (RX)
GSM RX chain activation for manual measurements/GSM RSSI measurement
WCDMA RX chain activation for manual measurement/WCDMA RSSI
Transmitter troubleshooting
General instructions for transmitter (TX)
GSM transmitter
troubleshooting.................................................................................................................
GSM transmitter troubleshooting flowchart
WCDMA transmitter troubleshooting
WCDMA transmitter troubleshooting
List of Figures
Figure 30 Auto tuning concept with CMU200......................................................................................................4–7
Figure 31 General voltage checking test points..................................................................................................4–9
Figure 32 RX Control window with example settings
Figure 33 Typical readings
Issue 1
Table of Contents
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COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
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This manual also for:

N82, L3, L4

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  • Pavel Kraemer Dec 31, 2016 03:20:
    I cannot find how to switch off front flash on NOKIA 230.
    Pleas​e inform to
    pkraemer@​volny.cz