Nokia 301 Service Manual

Table of Contents
General instructions for cellular RF troubleshooting......................................................................................... 4–5
Cellular RF key components.................................................................................................................................. 4–5
Cellular RF main troubleshooting ........................................................................................................................ 4–7
RF power supply self test troubleshooting......................................................................................................... 4–8
RF tuning and testing ........................................................................................................................................... 4–9
RF auto tuning and testing with Nokia Care Suite........................................................................................ 4–9
RF auto tuning procedure ............................................................................................................................... 4–9
Automatic RF testing with Nokia Care Suite............................................................................................... 4–11
Troubleshooting with Testing And Tuning Tool ........................................................................................ 4–13
Release variants information....................................................................................................................... 4–17
Antenna............................................................................................................................................................... 4–21
Antenna overview ......................................................................................................................................... 4–21
Main antenna functionality.......................................................................................................................... 4–21
Antenna troubleshooting............................................................................................................................. 4–21
FM radio troubleshooting (DS & SS).................................................................................................................. 4–22
FM radio troubleshooting............................................................................................................................. 4–22
FM radio headset troubleshooting .............................................................................................................. 4–25
Bluetooth Troubleshooting (DS & SS)............................................................................................................... 4–25
Bluetooth functional description (SS) ......................................................................................................... 4–25
Block diagram................................................................................................................................................ 4–26
Interface signals............................................................................................................................................ 4–26
Component placement ................................................................................................................................. 4–27
Symptom, Problem and Repair Solution..................................................................................................... 4–28
Test Coverage ................................................................................................................................................ 4–29
Test Procedure............................................................................................................................................... 4–29
Bluetooth troubleshooting .......................................................................................................................... 4–30
List of Tables
Table 4 Bluetooth Signal List............................................................................................................................. 4–26
List of Figures
Figure 12 3YK_30 Quark RF Rel5 RF Block............................................................................................................ 4–6
Figure 13 3yn_30 Rel4 RF block......................................................................................................................... 4–18
Figure 14 3Yn_30 Rel4 PWB layout ................................................................................................................... 4–19
Figure 15 3yk_30 Rel5 RF Block......................................................................................................................... 4–19
Figure 16 3yk_30 Rel5 PWB layout ................................................................................................................... 4–19
Figure 17 3ym_30 Rel6 RF block........................................................................................................................ 4–20
Figure 18 3ym_30 Rel6 PWB layout.................................................................................................................. 4–20
Figure 19 The version of the PWB layout......................................................................................................... 4–21
Figure 20 FM schematics (DS & SS).................................................................................................................... 4–23
Figure 21 FM components layout (DS & SS) ..................................................................................................... 4–24
Figure 22 Bluetooth block diagram.................................................................................................................. 4–26
Figure 23 Test points in Bluetooth ASIC circuit – BTHFMRDS4.4D.................................................................. 4–28
RM-839; RM-840; RM-841
Cellular RF troubleshooting
Issue 1 NOKIA INTERNAL USE ONLY Page 4 – 3
Copyright © 2013 Nokia. All rights reserved.

Nokia 301 Specifications

General

Display type	LCD
Display diagonal	2.4 \
Display resolution	240 x 320 pixels
Display number of colors	262144 colors
Internal memory	64 MB
Flash card support	Yes
Compatible memory cards	MicroSD (TransFlash)
Maximum memory card size	32 GB
Digital zoom	3 x
Photo effects	Grey, Negative film, Sepia
White balance	Cloudy, Daylight, Fluorescent, Incandescent, Shade, Tungsten
Rear camera resolution	2048 x 1536 pixels
Image formats supported	BMP, GIF, JPG, WBMP
Rear camera resolution (numeric)	3.2 MP
Data network	3.5G, GPRS, GSM, HSDPA, HSUPA, WCDMA
SIM card capability	Single SIM
WCDMA bands supported	900, 2100 MHz
2G bands (primary SIM)	850, 900, 1800, 1900 MHz
Mobile network generation	3G
Bluetooth version	3.0+HS
Bluetooth profiles	A2DP, AVRCP, GAVDP, HFP, HSP, OPP, PBAP, SAP, SDAP, SPP
USB version	2.0
USB connector type	Micro-USB B
Headphone connectivity	3.5 mm
Email protocols	IMAP4, POP3, SMTP
Multimedia Messaging Service (MMS)	-
Maximum frame rate	30 fps
Video compression formats	3GP, ASF, AVI, H.263, H.264, MP4, MPEG4
Video capture resolution (max)	320 x 240 pixels
Ringer type	Polyphonic
Voice codecs	AMR-NB, AMR-WB, G.711, G.726, G.729, iLBC
Audio formats supported	3GPP, AAC, AMR, M4A, MP3, MP4, WAV, WMA
Polyphonic rings quantity	32
Battery type	BL-4U
Talk time (2G)	20 h
Talk time (3G)	6 h
Battery voltage	3.7 V
Battery capacity	1200 mAh
Standby time (2G)	888 h
Standby time (3G)	936 h
Subscription type	No subscription
Product color	Black
Form factor	Bar
Phonebook capacity	2000 entries
Personal info management (PIM)	Alarm clock, Calculator, Calendar, Converter, Notes, Recorder, To-do list

Weight and Dimensions

Depth	12.5 mm
Width	50 mm
Height	114 mm
Volume	104.2 cm³
Weight	100.5 g