VK Corporation VK2010 User manual

VK Quality Group GSM C/S
GSM
GSM
SERVICE MANUAL
SERVICE MANUAL
VK2010
VK2010

VK Quality Group GSM C/S
☞
☞Service Guidelines Service Guidelines
Precise adjustment should be made in a shield box or shield room where
spurious noise has been eliminated.
 When using magnetized tools, note that related magnetic elements may cause
malfunctioning of critical parts(such as IC).
Use a twisted pair wire of thick type when measuring level. Using such a thick
twisted pair wire could reduce the measurement error as the wire contains less RF
resistance.
 When disassembling the phone set, you must use a driver tool meeting standard
requirements.
 When making repairs with power on after connecting the test package, note
that dangers such as overcurrent, parts deterioration caused by short-circuit may
occur.
 Note that PCB land may be detached due to overheating of a soldering iron
while making repairs on board status.
 Any additional devices that cause the change of performance shall not be
added to this phone, as registered.

VK Quality Group GSM C/S
☞
☞Table of Contents Table of Contents
Chapter 1. Overview & Features
Chapter 2. Appearance & Configuration
Chapter 3. Assembling & Disassembling Methods
Chapter 4. Block Diagram
Chapter 5. Schematic
Chapter 6. PCB Diagram
Chapter 7. Trouble Shooting
Appendix. Electrical Part List

VK Quality Group GSM C/S
CHAPTER 1.
CHAPTER 1.
OVERVIEW & FEATURES
OVERVIEW & FEATURES
1.
1. Overview Overview
2.
2. Features Features
3.
3. Standard Standard

VK Quality Group GSM C/S
☞
☞Overview Overview
VK 2010 Mobile Phone is a Slim Bar type
VK 2010 Mobile Phone is a Slim Bar type Mobile phone with color Mobile phone with color
LCD,MP3,operated in the GSM and Digital Cellular Mobile Radio Sy
LCD,MP3,operated in the GSM and Digital Cellular Mobile Radio System, stem,
which is the Pan
which is the Pan- -European mobile cellular standard. European mobile cellular standard.
VK 2010
VK 2010 Mobile Phone has the operation band of Mobile Phone has the operation band of GSM 900 and DCS 1800. GSM 900 and DCS 1800.
GSM
GSM PhaseII PhaseII features are fully supported and parts of the features are fully supported and parts of the GSM Phase II+ GSM Phase II+
features are also supported.
features are also supported.
About the SIM Toolkit, VK 2010 Mobile Phone supports up to Class
About the SIM Toolkit, VK 2010 Mobile Phone supports up to Class 3 3
including Class 1, 2. For speech communication, VK 2010 Mobile P
including Class 1, 2. For speech communication, VK 2010 Mobile Phone hone
supports Full Rate(FR), Enhanced Full Rate(EFR) and Half Rate(HR
supports Full Rate(FR), Enhanced Full Rate(EFR) and Half Rate(HR). For easy ). For easy
text,
text, eZi eZi Text is implemented and WAP protocol is adopted for internet Text is implemented and WAP protocol is adopted for internet
connection.
connection.
VK 2010 Mobile Phone supports GPRS up to Class 10.
VK 2010 Mobile Phone supports GPRS up to Class 10.

VK Quality Group GSM C/S
☞
☞Features (HW) Features (HW)
Category Sub-Category Description
Dimension 90x50x8.8
Weight TBD
Form Factor Slim Bar
Antenna Intenna
Radio GSM,EGSM,GPRS
R/F band 3.5band GSM850,EGSM900,DCS1800
PCS1900
GPRS Class Class B 10(4+2)
Speech Codec FR,HR,EFR,AMR
Main display 160x128 1.5" 262K OLED
Sub display No
Image sensor No
Resolution No
Digital Zoom No
Optical Zoom No
Motion JPEG No
Camcoder supporting No
Flashlight No
MPEG4 N/A
H.263 N/A
H.264 N/A
Video output N/A
Sound format MIDI,sp-MIDI,MP3,AAC
Ring tones Yes(64Poly MIDI,MP3)
MP3 playback Yes
Voice support codec AMR(TBD)
SMS/EMS/MMS Yes
WAP 2.0
Java N/A
Video
Audio
Data Service
Design
Network
LCD
Camera

VK Quality Group GSM C/S
☞
☞Features (HW) Features (HW)
Category Sub-Category Description
Instant Massage N/A
e-mail N/A
Nor/SRAM 128Mb/64Mb
Nand Memory 512Mb
External Memory No
Standard 50x44x35 (820mAh)
Extended N/A
RS232C Yes
USB Yes
IrDA No
IrRC No
Bluetooth Yes
PC syncronization Yes
Travel charger Adapter Yes
Ear-Microphone Yes
Hand strap Yes
Battery Charger Yes
PC-Sync No
Option
Data Service
Memory
Battery
Connectivity

VK Quality Group GSM C/S
☞
☞Features (SW) Features (SW)
FUNCTION DETAIL ITEM COMMENTS
Last dialed number 50 entry
Last received number 50 entry
Last missed number 50 entry
Call Call waiting Yes Network dependent
Earpiece volume 5 level
Mute on & Mute off Yes
Phone book SIM/Phone
Languages S/T Chinese & English Type A, D
All outgoing calls
International outgoing calls
International outgoing calls except to home
All incoming calls
All incoming calls when roaming
Call Diverting
Write message Send/Add Object/Remove Object(MMS only)/Page(MMS
only)/Save/Edit Subject(MMS only)/Preview(MMS
only)/Exit/Add Contact/Edit Email(MMS only)
Outbox(unsent items/sent items) Send/Edit/Delete/Delete All/Copy to SIM,Phone(SMS
only)/Move to SIM,Phone(SMS only)/Details(MMS only)
Inbox Delete/Delete All/Reply/Reply All(MMS only)/
Forward/Callback/Extract/Details/Copy to
SIM,PHONE(SMS only)/Move to SIM,PHONE(SMS only)
Information Message Reception(On/Off)/Read Topics(Edit/Delete)
Voice message Listen to Voice Mail/Set Voice Mail Number
Memory status SMS SIM/PHONE(Number), MMS(%)
Settings delivery report, read report(MMS only), report
sending(MMS only), profile setting(MMS only), auto
download(MMS only) Validity period/SMS center
No.(SMS only)
Call barring
Normal features
Audio
Supplementary services
Short/Multimedia message

VK Quality Group GSM C/S
☞
☞Features (SW) Features (SW)
FUNCTION DETAIL ITEM COMMENTS
Multi-band
Support of multi-band & mode GSM 850 / PCS 1900
GSM 900 / DCS1800
Miscellaneous function Test facility
Display software version
Language English
Simplified Chinese
Traditional Chinese
T9 Predictive word input
Gallery Photo/Video/Image/Animation
Sound/Music
Camera Photo shot/Sticker shot/Video clip
WAP Built in WAP 2.0
EMS Built in
GPRS Built in Class 10
New
Delete All
Schedule List
Morning Call
Reminder
Memo Edit and view 10 Memos
Calculator Operator Addition
Subtraction
Multiplication
Division
Unit converter Length conversion
Weight conversion
Volumes conversion
Surface conversion
Temperature conversion
World time Setting local time
Number of selectable cities 65 Cities
MP3 Player
Edit Play List Option (Repeat, Shuffle)
SIM Card Release
Refresh Release 96
Alarm
Text input
Calendar

VK Quality Group GSM C/S
☞
☞Standard Standard
Transmitter
GSM900 = 2W(Max)
GSM850 = 2W(Max)
DCS = 1W(Max)
PCS = 1W(Max)
GSM850 Tx = 824~849 Rx = 869~894MHz
P-GSM Tx = 890~915 Rx = 935~960MHz
Tx =880~915 Rx =925~960MHz
5) Modulation Mode: GMSK
GSM850=1737.8~1787.8MHz
EGSM = 1849.8~1919.8MHz
EGSM=798MHz
DCS =766MHz
DCS Tx =1710~1785 Rx = 1805~1880MHz
2) Frequency Range:
PCS Tx =1850~1910 Rx =1930~1990MHz
3) Radiowave Type: EGSM
4) Oscillation Mode: PLL Synthesize
GSM900 ,GSM850=90Hz6) Frequency Stability:
DCS,PCS = 180Hz
7) Terminal Amp(IC): TQ7M40220
8) Channel Separation: 200KHz
DCS=1804.9~1879.9MHz
9) RF1 Local Oscillation
Frequency:
PCS = 1929.9~1989.9MHz
GSM850=896MHz
10) IF VCO Frequency:
PCS=854MHz
1) Rated Output:
GSM850 = 1272~1297 MHz
E-GSM = 1279~1314 MHz
DCS= 1327~ 1402 MHz
DCS =512~885
E-GSM = 975~1023,1~124
P-GSM = 1~124
GSM850 = 128~251
1G~4G(-30dbm or below from the FTA
standard)
12) Spurious:
Frequency Multiplying
11) Multiplying Method
200KHz2) Channel Separation
1G~4G(-30dbm or below from the FTA standard)
7) Spurious:
GMSK
6) Modulation Mode:
100KHz
5) Intermediate Frequency:
PCS =1423 ~1483 MHz
4) RF2 Local Oscillation
Frequency :
PLL Synthesize
3) Oscillation Mode:
PCS = 512~ 810
1) Channel Number:
Receiver
Transmitter

VK Quality Group GSM C/S
CHAPTER 2.
CHAPTER 2.
APPEARANCE & CONFIGURATION
APPEARANCE & CONFIGURATION
1.
1. Appearance Appearance
2.
2. Icons Icons
3.
3. LCD Panel LCD Panel

VK Quality Group GSM C/S
☞
☞Appearance Appearance

VK Quality Group GSM C/S
☞
☞Icons Icons

VK Quality Group GSM C/S
☞
☞Icons Icons

VK Quality Group GSM C/S
☞
☞LCD Panel LCD Panel

VK Quality Group GSM C/S
CHAPTER 3.
CHAPTER 3.
ASSEMBLING & DISASSEMBLING
ASSEMBLING & DISASSEMBLING
1.
1. Assembly Drawings Assembly Drawings
2.
2. Disassembling Methods Disassembling Methods

VK Quality Group GSM C/S
1. Assembly Drawings
1. Assembly Drawings
1) Exploded View & Parts List

VK Quality Group GSM C/S
☞
☞Exploded View & Parts List Exploded View & Parts List
NO. DESCRIPTION Q’TY
1 Window LCD 1
2 CASE FRONT 1
3 KEYPAD ASS’Y 1
4 DOME SHEET 1
5KEYPBA 1
6 C-MIC 1
7 COVER EARJACK 1
8 CASE REAR 1
9 INNERPACK ASS’Y 1
10 Cover BATTERY 1
11 BLACK LCD 1
12 LCD MODULE 1
13 M1.4 SCREW 6

VK Quality Group GSM C/S
2. Disassembling Methods
2. Disassembling Methods
1)
1) Tools Tools
2)
2) Rear Case Disassembling Rear Case Disassembling
3)
3) Main PCB Disassembling Main PCB Disassembling
4) LCD Module Disassembling
4) LCD Module Disassembling

VK Quality Group GSM C/S
☞
☞Tool Preparation Tool Preparation
Disassembling tools are as below :
1. Star-shaped(*) Screw Driver
2. Hinge Remover
3. Tweezers
4. Cross-tip(+) Screw Driver
1.2.3.4.
In disassembling the VK Mobile Phone set,
- you must use tools meeting standard specifications.
- do not exert excessive force; Otherwise, the phone set may be damaged.