VOXTEL VS600 Service Manual
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
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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
F
RONT-END & TRANSCEIVER 63
BLUETOOTH 64
BLOCK DIAGRAM 65
7.4.3 RF S
UBSYSTEM CIRCUIT SCHEMATICS 65
7.5 LEVEL 4 SERVICE GUIDELINE FOR RF SUBSYSTEM 66
7.5.1 RECEIVER PAT H 66
7.5.2 TRANSMITTER PAT H 71
7.5.3 AUTOCAL META TOOL 75
7.5.4 BLUETOOTH SUBSYSTEM 76
8 APPENDIX 78
E
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XPLODED VIEW & PCB ASSEMBLY PLACEMENT 78
A
A
1 Introduction
This document elaborates the functions and details of Voxtel VS600, a tri-band
VS600 Service Manual
GSM900/DCS1800/PCS1900
GSM feature phone with GPRS class-10 function, as we ll
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
ntenna 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
Depth
Main Backlight Color / Type White light
Keypad Backlight Color / Type White light
TFT/1.8" 176*220/65K Color
Major Chipsets
Digital Base-band Chip MT6219
nalog 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
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A
A
I/O
I/O Connector Yes
External RF Connector Yes
C 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
ppearance 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
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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.
Security and Confidentiality – Telephone calls on analogue systems can very easily be
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overheard by the use of a suitable radio receiver. GSM offers vastly improved
confidentiality because of the way in which data is digitally encrypted and transmitted.
Better Call Quality - Co-channel interference, handover breaks, and fading will be dealt
with more effectively in the digital system. The call quality is also enhanced by error
correction, which reconstructs lost information.
Efficiency - The GSM system will be able to use spectral resources in a much more
efficient way than previous analogue.
2.3 GSM System
In the figure below, the area bounded by bold lines represents the total coverage
area of a hypothetical system. This area is divided into several cells, each containing a
cell site (base station) operating on a given set of channels which interfaces
radiotelephone subscribers to the telephone switching system.
The radiotelephones themselves are capable of operation on any channel in the
system, allowing them to operate in any cell. Due to the low power requirements for
communications between radiotelephones in a particular cell and the cell site, operating
channels may be repeated in cells that are outside the coverage area of each other.
For example, presume that cell A operates on channels arbitrarily numbered 1
through 8, cell B operates on channels 9 through 16, cell C operates on channels 17
through 24 and cell D operates on channels 1 through 8 (repeating the usage of those
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VS600 Service Manual
channels used by cell A). In this system, subscribers in cell A and subscribers in cell D
could simultaneously operate on channels 1 through 8.
The implementation of frequency re-use increases the call handling capability of the
system without increasing the number of available channels. When re-using identical
frequencies in a small area, co-channel interference can be a problem. The GSM
system can tolerate higher levels of co-channel interference than analogue systems, by
incorporating digital modulation, forward error correction and equalization. This means
that cells using identical frequencies can be physically closer, than similar cells in
analogue systems. Therefore the advantage of frequency re-use can be further
enhanced in a GSM system, allowing greater traffic handling in hi gh use areas.
By incorporating Time Division Multiple Access (TDMA) several calls can share the
same carrier. The carrier is divided into a continuous stream of TDMA frames, each
frame is split into eight time slots. When a connection is required the system allocates
the subscriber a dedicated time slot within each TDMA frame. User data (speech/data)
for transmission is digitized and sectioned into blocks. The user data blocks are sent as
information bursts in the allocated time slot of each TDMA frame.
The data blocks are modulated onto the carrier using Gaussian Minimum Shift
Keying (GMSK), a very efficient method of phase modulation.
Each time an information burst is transmitted, it may be transmitted on a different
frequency. This process is known as frequency hopping. Frequency hopping reduces
the effects of fading, and enhances the security and confidentiality of the link. A GSM
radiotelephone is only required to transmit for one burst in each frame, and not
continually, thus enabling the unit to be more power efficient.
Each radiotelephone must be able to move from one cell to another, with minimal
inconvenience to the user. The mobile it self carries out signal strength measurement s on
adjacent cells, and the quality of the traffic channel is measured by both the mobile and
the base station. The handover criteria can thus be much more accurately determined,
and the handover made before the channel quality deteriorates to the point that the
subscriber notices.
When a radiotelephone is well within a cell, the signal strength measured will be high.
As the radiotelephone moves towards the edge of the cell, the signal strength and
quality measurement decreases.
Signal information provides an indication of the subscriber’s distance from the base
station. As the radiotelephone moves from cell to cell, its control is handed from one
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base station to another in the new cell.
This change is handled by the radiotelephone and base stations, and is completely
transparent to the user.
2.4 Service Area
A service area, where phone calls can be originated and received, is defined by the
system operators. (Because this is a radio system, there is no exact boundary that can
be drawn on a map.) If the telephone is outside a coverage area, the (no service)
indicator will illuminate and calls will be unable to be placed or received. If this happens
during a conversation, the call will be lost. There may also be small areas within a
particular service area where communications may be lost.
The radiotelephone’s identity information is held by its local GSM system in its Home
Location Register (HLR) and Visitor Location Register (VLR). The VLR contains identity
information on all local active radiotelephones. Should you roam to another area, system
or country the radiotelephones identity information is sent to the VLR in the new system.
The new system will then check the radiotelephones details with your home system for
authenticity. If everything is in order, it will be possible to initiate and receive calls within
the new cell.
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3 VS600 Hardware Specifications
3.1 RF Subsystem
VS600 supports 900/1800/1900 bands as well as GPRS function. It supports GPRS
class 10, i.e. the maximum uplink slot number is 2; the maximum downlink slot number
is 4. The key components chosen for accomplishing the above requirements are listed
below:
Power amplifier --- SKY77328 (SKYWORKS), which is capable of supporting GPRS
class12 and quad-band application.
Transceiver IC --- MT6129 (MTK), which is GSM850/E GSM/DCS/PCS quad-band de sign
with GPRS class-12 capability.
Antenna switch --- C085TK (Hitachi metals), which is as the duplexer between
transmission / reception route for EGSM/DCS/PCS bands.
RF Clock --- 26MHz VC-TCXO, which is the fundamental reference frequency for
transceiver PLL synthesizer and the fundamental frequency of base band chipset after
divided by two.
The block diagram of RF section is as below:
RF Block Diagram
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VS600 Service Manual
3.2 Base-band Subsystem
VS600 adopts MTK ARM7EJ-S 32-bit RSIC GSM/GPRS BB chipset includes
MT6219, MT6305. It supports radio interface for EGSM900, DCS1800 and PCS1900.
For data service, it supports 14.4Kbits/sec GPRS. For voice servi ce, it support s adaptive
multi-rate, enhanced full-rate, full-rate, and half-rate. It also supports data encryption
algorithm for GSM network operation including A5/1 and A5/2 algorithms. Following
shows the base-band circuit block diagram.
FLASH
SRAM
PSRAM
DEBUGGER
MELODY
LCD
CMOS
SENSOR
NAND
FLASH
LCD
JTAG
SPEECH/AUDI
O
INPUT
SPEECH/AUDI
O
OUTPUT
FM STEREO
RADIO INPUT
HIFI
STEREO
OUTPUT
ALERT
ER
PWM
SIM
EXTERNAL MEMORY
INTERFACE
IMAGE INPUT
MT6219
SERIAL
LCD
SERIAL
LCD
UART
USB
MMC/SD/MS
IRDA
Base-band block diagram
MSPRO
8-BIT PARALLEL
INTERFACE
SYSCLK
AFC
APC
TX I/Q
RX I/Q
AUXADC
SUPPLY
VOLTAGES
KEYPAD
1 2 3
4 5 6
7 8 9
0 #
*
TCVCXO
RF
MODULE
BPI
BSI
POWER
MANAGEMENT
CIRCUITRY
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A
Component and Function List
Product Segment Color basic feature phone
Product Description Case changeable mini phone
Memory configuration SPANSION 128Mb+64Mb (MCP)
Baseband Chip MT6219
Power Management IC MT6305
Power Amplifier SKY77328
Transceiver MT6129
LCM AUO 1.8” 176*220 65K TFT
1.3M CMOS Camera
SIA 1.3M Micron CMOS
sensor
Battery + Packing Cell: NEC (Lithium Ion)
Packing vendor: Tyco
Major Features List VS600
Supported Bands 900/1800/1900 MHz Tri-band
GPRS Class Class 12
Circuit Switch Data
Supported Voice Codec AMR/EFR/ FR/HR
Main LCD Display 1.8” 176(R, G, B)*220 65K TFT
Antenna Type
Charger Type Switch
Loud speaker-hands free Yes
CSD up to 9.6 kbps
Embedded
Polyphonic (chords) S/W Polyphonic up to 64 tones
WAP WAP 2.0
EMS R4 Yes
Concatenated SMS Yes
Intelligent Text input T9
Games Yes
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JPEG Yes
Bluetooth CSR Bluetooth 1.1
USB Connection USB 1.1 Slave
UV light Yes
PC Tools Download/ Modem driver
Wallpapers Yes
Melody Composer Yes
ME Address book 250
Caller Photo Display Yes
Caller Groups Y es
Calendar/Note/Appointment Yes
Alarm Clock Yes
Calculator Yes
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A
3.3 Base-band Parts Details
MT6219
The MT6219 is the baseband processing solution offered by MTK as part of the 32-bit
ARM7EJ-S RSIC processor chipset Family. The chip integrates a powerful DSP,
ARM7EJ-S processor, and extensive set of peripherals that support applications such
as MMS, EMS and MP3. The MT6219 allow advanced speech algorithms, such as
MR and signal processing function such as echo suppression, cancellation and
noise reduction. The MT6219 supports pseudo-static RAM, page and burst flash
memories, USB, SD/MMC and devices such as camera modules. It can be divided
into three main subsystems.
● MCU Control processor subsystem
ARM7EJ-S 32-bit RISC Processor
26/52 MHz operating frequency
JAVA hardware acceleration
512 KB zero-wait-state on-chip SRAM
● Multi-media subsystem
JPEG codec
2D accelerator
Wavetable synthesis
MT6305
MPEG-4/H.263 codec
Full speed USB 1.1
High throughput hardware re-size capable of tailoring image to arbitrary
MMC/SD, MS and MS PRO host controller
DSP recorder
● User interface
6-row x 7-column keypad scanner
3 UARTs with hardware flow control and speed up to 921600 bps
7-channel auxiliary ADC
Six level or edge sensitive external interrupts
The MT6305 is a power management system chip optimized for GSM handsets. It
contains seven LDOs, one to power each of the critical GSM sub-block. Sophisticated
controls are available for power-up during battery charging, keypad interface, and
RTC alarm. The MT6305 is optimized for maximum battery life, featuring a ground
current of one 107uA and 187uA when the phone is in standby and operation
respectively.
The MT6305 contains three open drain output switches for LED, alarm, and vibration
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Microphone
Loud Speaker
VS600 Service Manual
control. The SIM interface provides the level shift between SIM card and
microprocessor.
● Power Management Section
Voltage regulator
Battery charger
Battery production
MARQUESS MM-OB622S-42C33C10
Sensitivity： -42±3 dB at 1kHz, 1V/Pa
Output Impedance： 2.2k+-10% ohm at 1kHz,
S/N Ratio (A curve)： min 58 dBv/Pa at 1kHz,
Dimension： φ 6.0 * 2.2 mm
Directional characteristic： omni-directional
Operating voltage： DC 2V
Part number： Speaker-Receiver dual type MT-2014ESF
Impedance： 8 ± 1.2 at 1KHz, 1Vrms.
SPL for Dynamic Speaker: 100 ± 3 dB at 0.5W 1KHz.
Stacked-MCP
Architecture
(128Mbit Flash +
64Mbit PSRAM)
SPL for Dynamic Receiver: 123dB ± 3dB at 1.0KHz, 100mV with IEC R318 coupler.
Resonance Frequency (Fo)： 800Hz ± 160 Hz, 1V
Rated Input (Nom./Max.) for Speaker： 0.5 W/ 0.8W
Frequency Range：Fo ~ 20 kHz. (Receiver: 300Hz~3.4kHz)
Dimension： 20 × 14 × T4.6 [mm]
Spansion S71PL129JC0
Stacked Multi-Chip Product (MCP) Flash Memory and pSRAM
128 Megabit (8M x 16-bit) CMOS 3.0 voltage-only simultaneous operation, page mode flash memory
with 64 Megabit (4M x 16-bit) pseudo-static RAM.
Power supply voltage of 2.7 to 3.1 Volt
Access time: 65ns flash and 70ns pSRAM
Operating temperature: -25°C to +85°C (wireless)
-40°C to +85°C (Industrial)
Both top and bottom boot blocks in one device.
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Bank structure
MCP block diagram
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Display
VS600 Service Manual
Jemitek 1.8” 176*220 65K TFT LCM
Specifications:
ITEM STANDARD VALUE UNIT
Number of Pixels 176 x (R, G, B) × 220 dots
1.3M CMOS
Sensor
Outline Dimension
34 (W) × 46.7 (H) × 3.0
mm
(T)
Active Area
Pixel Pitch
27.984 (W) × 34.98 (H)
0.159 (W) × 0.159 (H)
mm
mm
Weight g
LCD type TFT (Transmissive)
Viewing Direction 12 O’clock
Backlight White LED
Driver IC Samsung S6D0118
.
ASIA Optical BASCH0300
The BASCH0300 is mobile phone camera module with Micron 1/3” SXGA CMOS
sensor. It is 1.3M fixed focus camera module for mobile phone and includes 3 plastic
Lens.
Features
The BASCH0300 features a state-of-the-art architecture, allowing extremely low
Back Light
Keypad
power consumption and miniature size. The following are the product highlights.
Sensor Array
●1/3" optical format
●SXGA resolution 1280x1024
●3.6µm x 3.6µm square pixels
●Integrated 10 Bit ADC
●RGB mosaic with micro-lens for high sensitivity
●Programmable frame rate up to 15 fps SXGA and 30 fps QSXGA
The backlight on the module is single light guide. SW adjusts the brightness by changing the ON/OFF
duty cycle of on-chip PWM generator.
The keypad is a matrix. The columns, KEYCOL(6:0) are connect to the keyboard
interface of MT6219, and are usually driven low. The rows, KEYROW(5:0) are
connected to the keyboard interface of MT6219 and are internal pulled-up. When a
key is pressed, the appropriate row is connected to one of the columns, and forced
low, then causing an interrupt.
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Attach VS600 keypad matrix comparison table.
KCOL6
GND [Power/ End key]
KCOL0 KCOL1 KCOL2 KCOL3 KCOL4
KROW0 [Send] [Vol_Up] X [Vol_Down] X
KROW1 [Up] [Soft L] X [Soft R] X
KROW2 [Down] [1] [2] [3] X
KROW3 [Left] [4] [5] [6] X
KROW4 [Right] [7] [8] [9] X
KROW5 [Mid] [*] [0] [#] X
.
Vibrator
I/O connector
Adaptor
Part number： JA HWA
Rated voltage： 3 VDC
Rated current： Max. 80mA
Terminal resistance： 35 ohm +- 15%
Rated speed： 13000 +- 3000 rpm
Mechanical noise： Less than 50dB
Operation temperature： -30°C ~ 70°C
Storage temperature： -40°C ~ 85°C
Mini-USB connector
INPUT CHARACTERISTICS
●Input Voltage and Frequency
The power supply shall meet all specifications when powered from the following Sources.
Item Minimum Nominal Maximum
Voltage 90V 100/240V 264V
Frequency 47Hz 50/60Hz 63Hz
●Efficiency
The power supply efficiency shall be greater than 55 % when measure at full rated
load, nominal input voltage.
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●Input Current
The AC mains steady state RMS input current shall be 0.3 Amps maximum at rated
input, full load condition.
●Inrush Current
The AC mains single-cycle peak inrush current shall be limited to 30 amps cold and
coinciding with the AC mains voltage 264Vac. The power supply shall cause no
damage with the hot start inrush under 40 degree C ambient temperature.
●Leakage Current Requirement
The power supply ground leakage current, when measured per the test
configuration, shall not exceed 0.25mA at input voltage of 264Vac/50Hz for Class
II.
●
Over-Voltage Requirement (input)
The supply will operate safely up to 240Vac. the SMP must not fail in catastrophic
manner (i.e. no fire, Flames, sparks, melting)
OUTPUT CHARACTERISTICS
●Output Voltage
The power supply shall be regulated DC output of 5.25Vdc±5%, the voltage shall
be measured at the power supply output connector.
●Output Current
Output Current (Iout): Continuous operation: 480mA
●Temperature
Operating: -0 to 45 degrees C.
Non-operating: -10 to 70 degrees C.
●Humidity
10~ 90% relative humidity, non-condensing during operating temperature. 5~ 95%
relative humidity, including condensation during non-operating temperature.
●Transient Response
The voltage regulation limits shall be maintained over the AC input range. The
power supply shall maintain output voltage regulation subject to the conditions
listed. The transient response measurement shall be made with a load changing
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VS600 Service Manual
repetition rate of 100 Hz. The load slew rate shall not be greater than 0.1 A/us.
During transient steps, the regulation must be maintained within the limits of figure.
Battery Packing
Battery cell: NEC Li-Ion 700mAh
NEC cell + PCM
Description Specification Unit Condition
Cell model NEC
Nominal Capacity 700 mAh
Nominal Voltage 3.7 V
Charge voltage 4.2 V
Final discharge voltage 2.75 V
ICP043443AL
Maximum Charge Current 700 mA 1C
Maximum Discharge Current 1400 mA 2C
Internal Resistance <145 m
Operating Temperature
Range
0~+45
-20~+60
Storage Temperature Range -20~+60
℃
℃
Charge
Discharge
Within 6 months;
Capacity recovery rate 85%
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VS600 Service Manual
3.4 Acoustic Specifications
GSM 11.10 – 30.1 Sending sensitivity/frequency response
GSM 11.10 – 30.2 Sending loudness rating (SLR)
GSM 11.10 – 30.3 Receiving sensitivity/frequency response
GSM 11.10 – 30.4 Receiving loudness rating (RLR)
GSM 11.10 – 30.5.1 Side Tone Masking Rating (STMR)
GSM 11.10 – 30.6.2 Telephone acoustic coupling loss – Stability margin
GSM 11.10 – 30.7.1 Distortion-Sending
3.5 CE marking
Safety：EN60950
EMC：ETS300 342-1
EN55022 EMI： ITE-Radio Disturbance Characteristic
EN61000-4-3 RS ： Radiate, Radio-Frequency, and Electromagnetic Field
Immunity Test
EN61000-4-2 ESD：Electrostatic Discharge Immunity Test
EN61000-4-4 EFT：Electrical Fast Transient/Burst Immunity Test
EN61000-4-6 CS：Immunity to Conducted Disturbances
ISO7637-1/-2 Transient and Surge, Vehicular Environment
EN61000-4-11 Voltage Dip, short Interruptions and voltage Variations Immunity
Test
EN61000-4-5 Surge：Surge Immunity Test
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3.6 Related Performance
Operating Range
Battery mode
Charging mode
Power consumption
Talk mode
Sleep mode
GPRS mode, 1 TX
slot
Power On： 3.4V < Vbat < 4.3V
Power Off： Hardware: Vbat < 3.2V, Software: Vbat < 3.4V
Low Battery Alert： Vbat = 3.4V
Maximum Charge Current： 500mA
Maximum Charge Voltage： 5.5V
Maximum Charge Time： less than 3 Hours
Maximum Current： (320mA) @ GSM band, PO = 32dBm
Maximum Current： (250mA) @ DCS band, PO = 29dBm
Maximum Current： (6mA) @ paging rate = 2
Maximum Current： (3.5mA) @ paging rate = 9
Maximum Current： (320mA) @ GSM band, PO = 32dBm
Maximum Current： (250mA) @ DCS band, PO = 29dBm
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4 Circuit Schematics
4.1 Memory Circuit
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4.2 SIM Card Circuit
4.3 Speaker & Receiver 2-in-1 circuit
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4.4 Microphone
VS600 Service Manual
4.5 LCM Backlight and LED Circuit
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