Nokia N81 Service Manual

Accessory audio mode is automatically enabled/disabled during connection/disconnection of dedicated
phone accessories.
External mic uses AVILMA (N2200) Mic2P and Mic2N inputs. External mic circuitry is biased by AVILMAs MicB2
bias voltage output. This bias voltage is filtered by R2207 and C2202 and the fed through R2200.
Figure 74 MicBias circuitry
Figure 75 External mic circuitry
Internal earpiece
Internal earpiece is used for Handportable (HP) call mode. A dynamic earpiece is connected to AVILMA via
slide FPC 1YZ in slider.
RM-179; RM-223
System Module and User Interface
Issue 1 COMPANY CONFIDENTIAL Page 6 –35
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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