Nokia N81 Service Manual

9. Click Next to continue with GSM1800 Rx tuning.
Next actions
Repeat steps 6 to 9for GSM1800 and GSM1900
Rx band filter response compensation (GSM)
Prerequisites
Rx calibration must be performed before the Rx band filter response compensation.
Context
On each GSM Rx band, there is a band filter in front of the RF ASIC front end. The amplitude ripple caused by
these filters causes ripple to the RSSI measurement, and therefore calibration is needed.
The calibration has to be repeated for each GSM band.
Steps
1. Connect the GSM connector of the module jig to a signal generator.
2. Start Phoenix service software.
3. From the Operating mode drop-down menu, set mode to Local.
RM-179; RM-223
RF troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 4 –35
Copyright © 2007 Nokia. All rights reserved.

Nokia N81 Specifications

General

Display diagonal	2.4 \
Display resolution	240 x 320 pixels
Display number of colors	16.78 million colors
Ringer type	Polyphonic
Internal memory	8196 MB
Front camera type	Single camera
Rear camera resolution	1600 x 1200 pixels
Personal info management (PIM)	Alarm clock, Calculator, Calendar, Notes, To-do list
Headphone connectivity	3.5 mm
USB 2.0 ports quantity	1
Text prediction system type	T9
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
Form factor	Slider
Product color	Brown
Gaming time	6 h
Browsing time	5 h
Talk time (2G)	4 h
Talk time (3G)	3 h
Battery capacity	1050 mAh
Standby time (2G)	1020 h
Continuous audio playback time	11.5 h
Continuous video playback time	4.5 h
2G standards	GPRS
Data network	wcdma
Bluetooth version	2.0+EDR
Bluetooth profiles	A2DP, BIP, DUN, FTP, GAP, GOEP, HFP, HSP, OPP, SPP
SIM card capability	Single SIM

Weight and Dimensions

Depth	102 mm
Width	50 mm
Height	17.9 mm
Weight	140 g