Nokia RM-721 - Table of Contents

Table of Contents
General RF troubleshooting ................................................................................................................................. 4–5
Introduction to RF troubleshooting ............................................................................................................... 4–5
Auto tuning............................................................................................................................................................ 4–5
Introduction to auto tuning............................................................................................................................ 4–5
Auto tuning procedure .................................................................................................................................... 4–6
Self test troubleshooting...................................................................................................................................... 4–6
Phoenix self test troubleshooting .................................................................................................................. 4–6
Receiver troubleshooting ..................................................................................................................................... 4–7
Introduction to receiver (RX) troubleshooting.............................................................................................. 4–7
GSM RX chain activation for manual measurements/GSM RSSI measurement .......................................... 4–7
GSM receiver troubleshooting flowchart ....................................................................................................... 4–9
WCDMA RX chain activation for manual measurement................................................................................ 4–9
WCDMA RSSI measurement .......................................................................................................................... 4–11
WCDMA receiver troubleshooting flowchart............................................................................................... 4–12
Transmitter troubleshooting ............................................................................................................................ 4–13
Introduction to transmitter (TX) troubleshooting..................................................................................... 4–13
GSM transmitter troubleshooting................................................................................................................ 4–13
GSM transmitter troubleshooting flowchart .............................................................................................. 4–16
WCDMA transmitter troubleshooting .......................................................................................................... 4–17
WCDMA transmitter troubleshooting flowchart......................................................................................... 4–20
Antenna............................................................................................................................................................... 4–21
Antenna overview ......................................................................................................................................... 4–21
Main antenna functionality.......................................................................................................................... 4–21
Antenna troubleshooting............................................................................................................................. 4–21
List of Figures
Figure 13 Auto tuning concept with CMU200..................................................................................................... 4–6
Figure 14 Phoenix RSSI Reading window ........................................................................................................... 4–8
Figure 15 Phoenix Rx Control window with sample settings (WCDMA band I)............................................ 4–10
Figure 16 Phoenix Rx Power Measurement window...................................................................................... 4–11
Figure 17 Phoenix RF Controls window ........................................................................................................... 4–13
Figure 18 Typical readings ................................................................................................................................ 4–15
Figure 19 Phoenix WCDMA Tx control window ............................................................................................... 4–17
Figure 20 Typical readings ................................................................................................................................ 4–19
RM-721; RM-722
RF Troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 4 – 3
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