Nokia E62 Service Manual

Table of Contents
Introduction to RF troubleshooting.....................................................................................................................7–5
RF key component placement...............................................................................................................................7–5
Receiver troubleshooting......................................................................................................................................7–9
Introduction to Rx troubleshooting................................................................................................................7–9
General instructions for RX troubleshooting..................................................................................................7–9
GSM Rx chain activation for manual measurements / GSM RSSI measurement........................................7–10
Transmitter troubleshooting..............................................................................................................................7–11
General instructions for TX troubleshooting................................................................................................7–11
TX 850/900 troubleshooting..........................................................................................................................7–14
TX 1800/1900 troubleshooting......................................................................................................................7–15
Checking antenna functionality.....................................................................................................................7–15
RF tunings.............................................................................................................................................................7–17
Introduction to RF tunings.............................................................................................................................7–17
RF autotuning..................................................................................................................................................7–17
System mode independent manual tunings.....................................................................................................7–20
Rf channel filter calibration............................................................................................................................7–20
PA (power amplifier) detection.....................................................................................................................7–21
GSM receiver tunings............................................................................................................................................7–21
Rx calibration (GSM)........................................................................................................................................7–21
Rx band filter response compensation (GSM)...............................................................................................7–25
GSM transmitter tunings......................................................................................................................................7–30
Tx IQ tuning (GSM)...........................................................................................................................................7–30
Tx power level tuning (GSM)..........................................................................................................................7–32
List of Tables
Table 12 Rf channel filter calibration tuning limits..........................................................................................7–20
Table 13 RF tuning limits in Rx calibration........................................................................................................7–24
List of Figures
Figure 42 RM-88 RF components..........................................................................................................................7–6
Figure 43 RM-88 BT component placement.........................................................................................................7–7
Figure 44 RM-88 component placement (top).....................................................................................................7–8
Figure 45 RM-88 component placement (bottom).............................................................................................7–8
Figure 46 RF Controls window............................................................................................................................7–10
Figure 47 RSSI Reading window.........................................................................................................................7–11
Figure 48 RF Controls window............................................................................................................................7–13
Figure 49 Main antenna.......................................................................................................................................7–16
Figure 50 Feed and GND spots of the main antenna........................................................................................7–16
Figure 51 Rf channel filter calibration typical values.......................................................................................7–20
RM-88
RF Troubleshooting and Manual Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 7 –3
Copyright © 2006 Nokia. All rights reserved.

Nokia E62 Specifications

General

Panel type	LCD
Display resolution	320 x 240 pixels
Display number of colors	16.78 million colors
Ringer type	Polyphonic
Processor frequency	0.235 GHz
Internal memory	80 MB
Compatible memory cards	miniSD
Multimedia Messaging Service (MMS)	Multimedia Messaging Service (MMS) is a standard way to send messages that include multimedia content to and from a mobile phone over a cellular network
Bundled software	S 60 UI
Form factor	Bar
Product color	Silver, White
Talk time (2G)	5.5 h
Battery capacity	1500 mAh
Standby time (2G)	330 h
2G standards	EDGE, GPRS
Keyboard layout	QWERTY
Personal info management (PIM)	Alarm clock, Calculator, Calendar, Notes

Weight and Dimensions

Depth	14 mm
Width	69.7 mm
Height	177 mm
Weight	144 g