Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment Voxtel Mobile Phones VOXTEL VS600 VOXTEL VS600
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VS600 Service Manual
Model: VS600
Service Level: Level 1 ~Level 4
VOXTEL Technical Documentation 1
VS600 Service Manual
TABLE OF CONTENTS
1 INTRODUCTION 4
1.1 OVERVIEW 4
1.2 SPECIFICATIONS 4
2 OVERVIEW OF GSM OPERATION 6
2.1 CELLULAR PHONE CONCEPT 6
2.2 GSM-GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS 6
2.3 GSM SYSTEM 7
2.4 SERVICE AREA 9
3 VS600 HARDWARE SPECIFICATIONS 10
3.1 RF SUBSYSTEM 10
3.2 BASE-BAND SUBSYSTEM 11
3.3 BASE-BAND PARTS DETAILS 14
3.4 ACOUSTIC SPECIFICATIONS 21
3.5 CE MARKING 21
3.6 RELATED PERFORMANCE 22
4 CIRCUIT SCHEMATICS 23
4.1 MEMORY CIRCUIT 23
4.2 SIM CARD CIRCUIT 24
4.3 SPEAKER & RECEIVER 2-IN-1 CIRCUIT 24
4.4 MICROPHONE 25
4.5 LCM BACKLIGHT AND LED CIRCUIT 25
4.6 VIBRATOR CIRCUIT 26
4.7 POWER MANAGEMENT & CHARGING CIRCUIT 26
4.8 LCM FPC & LCM BACKLIGHT 27
4.9 BOARD TO BOARD CONNECTOR 28
4.10 HEADSET 29
4.11 BLUETOOTH & CHIP ANTENNA 29
4.12 HALL SENSOR CIRCUIT 30
4.13 MINI USB & MINI SD 31
4.14 UB & MB KEYPADS 31
4.15 MT6219 32
4.16 ANTENNA & SWITCH 33
4.17 AMPLIFIER (SKY77328) 34
4.18 MT6129 & SAW FILTERS 34
5 SOFTWARE DOWNLOAD 36
5.1 SYSTEM REQUIREMENTS 36
VOXTEL Technical Documentation 2
VS600 Service Manual
5.2 VOXTEL USB2COM DOWNLOAD CABLE 36
5.3 INSTALLATION OF VOXTEL DOWNLOAD TOOL 37
5.4 HOW TO DOWNLOAD SOFTWARE? 38
6 DISASSEMBLY/ASSEMBLY PROCEDURE 41
6.1 INTRODUCTION 41
6.2 RECOMMENDED TOOLS 41
6.3 DISASSEMBLY PROCEDURE 42
6.4 ASSEMBLY PROCEDURE 51
6.5 EXPLODED VIEW 51
7 TROUBLESHOOTING 52
7.1 LEVEL 1 & 2 TROUBLESHOOTING CHART 52
7.2 MANUAL MMI TEST MODE 55
7.3 LEVEL 3 & 4 TROUBLESHOOTING-BASEBAND 57
7.3.1 BASEBAND SUBSYSTEM 57
7.3.2 KEY COMPONENTS PLACEMENT 58
MAIN BOARD ASSEMBLY-BOTTOM 58
MAIN BOARD ASSEMBLY-TOP 59
UPPER BOARD ASSEMBLY-BOTTOM 60
UPPER BOARD ASSEMBLY-TOP 60
BLOCK DIAGRAM 61
7.3.3 BASEBAND SUBSYSTEM CIRCUIT SCHEMATICS 61
7.4 LEVEL 3 & 4 TROUBLESHOOTING-RF 62
7.4.1 RF SUBSYSTEM 62
7.4.2 KEY COMPONENTS PLACEMENT 63
FRONT-END & TRANSCEIVER 63
BLUETOOTH 64
BLOCK DIAGRAM 65
7.4.3 RF SUBSYSTEM CIRCUIT SCHEMATICS 65
7.5 LEVEL 4 SERVICE GUIDELINE FOR RF SUBSYSTEM 66
7.5.1 RECEIVER PATH 66
7.5.2 TRANSMITTER PATH 71
7.5.3 AUTOCAL META TOOL 75
7.5.4 BLUETOOTH SUBSYSTEM 76
8 APPENDIX 78
EXPLODED VIEW & PCB ASSEMBLY PLACEMENT 78
VOXTEL Technical Documentation 3
VS600 Service Manual
1 Introduction
This document elaborates the functions and details of Voxtel VS600, a tri-band
GSM900/DCS1800/PCS1900 GSM feature phone with GPRS class-10 function, as well
as the information related to maintenance procedure and trouble-shootings.
1.1 Overview
VS600 is a MP3 feature phone with slide form factor. It equips with 1.8" 176x220 65k
TFT LCD display and a 1.3M pixels CMOS camera. Besides the excellent quality of
display, VS600 also features its acoustic performance: 64-polyphonic and MP3 ring
tones.
1.2 Specifications
Basic Features
Dimension (Excluding Antenna) 90x45x24
Weight (Flex & Volume) <85 g
Volume <82 cc
Antenna Embedded
Talk Time / Stand by time 2.5-5 hrs/140-200 hrs
Charging time Switching type (finish charging in 2.5 hours)
Main Display Type / Resolution / Color
TFT/1.8" 176*220/65K Color
Depth
Main Backlight Color / Type White light
Keypad Backlight Color / Type White light
Major Chipsets
Digital Base-band Chip MT6219
Analog Base-band Chip MT6219
Power Amplifier MT6318
Transceiver MT6129
Liquid Crystal Display Waxin
Memory Configuration (min.) 128 + 64
Backend IC No (ISP inside)
Camera CMOS Asia Optical
Battery NEC Cell
Bluetooth CSR
VOXTEL Technical Documentation 4
VS600 Service Manual
I/O
I/O Connector Yes
External RF Connector Yes
AC Charging Jack Yes
Earphone Mic. Jack Yes
Bluetooth Yes
USB Support Speed 921.6Kbps
USB Support Class Mass storage/CDCACM
USB Charging Yes
Extended Memory Mini SD & NAND Flash
Speaker 2 in 1
Mechanical Features
Appearance Semi-Auto Slider
Navigation Key 5 ways combined
Numeric Key 12 Pads
Side Key Yes
Strap Hole Yes
System / Service Support
Support Band 900/1800/1900
Speech Codec HR/FR/EFR
CSD / Fax Up to 14.4K
GPRS Multi-slot Class Class 10
GPRS Terminal Class Class B
GPRS Coding Scheme CS1, CS2, CS3, CS4
VOXTEL Technical Documentation 5
VS600 Service Manual
2 Overview of GSM Operation
2.1 Cellular Phone Concept
The cellular system was first used to provide radiotelephone service in the frequency
range 890-960 MHz. A cellular system provides higher call handling capacity and system
availability than would be possible with conventional radiotelephone systems (those
which require total system area coverage on every operating channel) by dividing the
system coverage area into several adjoining sub-areas or cells.
Each cell contains a base station (cell site) that provides transmitting and receiving
facilities, for an allocated set of duplex frequency pairs (channels). Since each cell is a
relatively small area, both the cell site and the radiotelephone that it supports can
operate at lower power levels than would be used in conventional systems.
Using this technique, radiation on a given channel is virtually contained in the cell
operating on that channel and, to some extent, those cells directly adjacent to that cell.
Since the coverage area of a cell on a given channel is limited to a small area
(relative to the total system coverage area), a channel may be reused in another cell
outside the coverage area of the first. By this means, several subscribers may operate
within the same geographic area, without interference with each other, on a single
channel.
2.2 GSM-Global System for Mobile communications
Unlike former cellular systems, GSM uses digital radio techniques. The GSM system
has the following advantages over previous analogue systems:
International Roaming - Due to international harmonization and standardization, it will be
possible to make and receive calls in any country, which supports a GSM system.
Digital Air Interface - The GSM phone will provide an entirely digital link between the
telephone and the base station, which is, in turn, digitally linked into the switching
subsystems and on into the PSTN.
ISDN Compatibility - ISDN is a digital communications standard that many countries are
committed to implementing. It is designed to carry digital voice and data over existing
copper telephone cables. The GSM phone will be able to offer similar features to the
ISDN telephone.
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