Nokia N81 Service Manual

Bluetooth and FM radio
Introduction to Bluetooth/FM Radio troubleshooting
Bluetooth problems that can occur:
Problem Description
A malfunction in the BT ASIC, BB ASICs or
Phone’s BT SMD components.
This could have many causes i.e. SW or HW related.
No BT link can be established. • Bad contact of c-clips (X6302, X6300) to the corresponding
antenna pads.
• Damaged component or bad contact of R6420 (0 Ohm), BT/
WLAN frontend (N6301) or ISM band filter (Z6300).
Bluetooth/FM Radio component layout
Figure 21 Bluetooth and FM radio component layout
Bluetooth settings for Phoenix
Steps
1. Start
Phoenix service software.
2. From the File menu, choose Open Product, and then choose the correct type designator from the
Product list.
3. Place the phone to a flash adapter in the local mode.
4. Choose Testing→Bluetooth LOCALS .
5. Locate JBT-9’s serial number (12 digits) found in the type label on the back of JBT-9.
In addition to JBT-9, also SB-6, JBT-3 and JBT-6 Bluetooth test boxes can be used.
6. In the
Bluetooth LOCALS window, write the 12-digit serial number on the
Counterpart BT Device Address line.
This needs to be done only once provided that JBT-9 is not changed.
7. Place the JBT-9 box near (within 10 cm) the BT antenna and click Run BER Test.
Results
Bit Error Rate test result is displayed in the Bit Error Rate (BER) Tests pane in the Bluetooth LOCALS window.
RM-179; RM-223
Baseband Troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 3 –37
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