VK VK4500 User manual

VK Quality Group GSM C/S
GSM
GSM
SERVICE MANUAL
SERVICE MANUAL
VK4500
VK4500

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 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 4500 Mobile Phone is a Slide type MP3, 1.3Mpixel camera mobil
VK 4500 Mobile Phone is a Slide type MP3, 1.3Mpixel camera mobile phone e phone
with color LCD, operated in the GSM, Digital Cellular Mobile Rad
with color LCD, operated in the GSM, Digital Cellular Mobile Radio System io System
and Personal Communication System, which is the Pan
and Personal Communication System, which is the Pan- -European mobile European mobile
cellular standard.
cellular standard.
VK 4500 Mobile Phone has the operation band of GSM 900, DCS 1800
VK 4500 Mobile Phone has the operation band of GSM 900, DCS 1800 and and
GSM 850, PCS 1900. GSM Phase II features are fully supported and
GSM 850, PCS 1900. GSM Phase II features are fully supported and parts of parts of
the GSM Phase II+ features are also supported.
the GSM Phase II+ features are also supported.
About the SIM Toolkit, VK 4500 Mobile Phone supports up to Class
About the SIM Toolkit, VK 4500 Mobile Phone supports up to Class 3 3
including Class 1, 2. For speech communication, VK 4500 Mobile P
including Class 1, 2. For speech communication, VK 4500 Mobile Phone hone
supports Full Rate (FR), Enhanced Full Rate (EFR) and Half Rate
supports Full Rate (FR), Enhanced Full Rate (EFR) and Half Rate (HR). For easy (HR). 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 4500 Mobile Phone supports GPRS up to Class 10.
VK 4500 Mobile Phone supports GPRS up to Class 10.

VK Quality Group GSM C/S
☞
☞Features (HW) Features (HW)
Catagory Sub-Catagory Description
Dimension 98 x 49 x 16.9
Weight 86.2g with standard battery
Form Factor Slide
Antenna Intenna
Radio GSM, EGSM, GPRS
R/F band 3.5 band GSM850, EGSM900, DCS1800, PCS1900
GP RS Class Class B 10 (4+2)
Speech Codec FR, HR, EFR, AMR
Main display 176x220 2.0" 256K TFT
Sub display N/A
Image sensor CMOS
Resolution 1280x1024 pixel
Digital Zoom x 4
Optical Zoom No
Motion JPEG Yes
Camcorder supporting Motion JPEG
Flashlight No
MPEG4 N/A
H.263 N/A
H.264 N/A
Video output N/A
Sound format MIDI, sp-MIDI, MP3, AAC
Ringtones Yes (64poly MIDI, MP3)
MP3 playback Yes
Voice support codec AMR (TBD)
SM S/ E M S/M M S Y e s
WAP 2
Java MIDP2.0/CLDC1.1
Video
Audio
Data Service
Design
Network
LCD
Camera
Catagory Sub-Catagory Description
Instant Massage N/A
e-mail N/A
Nor/SRAM 128 M b / 64 Mb
Nand 1Gb
External Memory N/A
Standard 32 x 35 x 52 (600mAh)
Extended 46 x 35 x 52 (920mAh)
RS232C Yes
USB Yes
IrDA No
IrRC No
Bluetooth Yes
PC syncronization Yes
Travel charger Adapter
Ear – Microphone
Hand strap
Battery Charger
PC – Sync
Option
Memory
Battery
Connectivity

VK Quality Group GSM C/S
☞
☞Features (SW) Features (SW)
FUNCTION DETAIL ITEM COMMENTS
Last dialed number 40 entry
Last received number 50 entry
Last missed number 20 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
Call barring All outgoing calls
International outgoing calls
International outgoing calls except to home
All in coming calls
All incoming calls when roaming
Call Div erting
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 Mes sage Reception(On/Off)/Read
Topics(Edit/Delete)
Voice message Listen to Voice Mail/Set Voice Mail Number
Memory s tatus 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)
Normal features
Audio
Supplementary services
Short/Multimedia message

VK Quality Group GSM C/S
☞
☞Features (SW) Features (SW)
FUNCTION DETAIL ITEM COMMENTS
GSM 850 / PCS 1900
GSM 900 / DCS1800
Test facility
Display s oftware version
Language English
Simp lified Ch ines e
Trad ition al Chin es e
T9 Predictive word input
Photo/Video/Image/Animation
Sound/Music
Camera Photo shot/Sticker shot/Video clip
WA P Built in WA P 2.0
EMS Built in
GPRS Bu ilt in Clas s 10
New
Delete All
Schedule List
Morning Call
Reminder
Memo Edit and view 10 Memos
Addition
Subtraction
Multip lication
Division
Length conversion
Weight conversion
Volumes conversion
Surface conversion
Temperature conversion
Setting local time
Number of selectable cities 65 Cities
Player
Edit Play List Option (Repeat, Shuffle)
Release Release 96
Refres h O
World time
MP3
SIM Card
Calculator Operator
Unit converter
Multi-band
Miscellaneous function
Text input
Ga lle r y
Calen dar
Alarm
Support of multi-band & mode

VK Quality Group GSM C/S
☞
☞Standard Standard
GSM850 Tx =
824~849
Rx = 869~894MHz
P-GSM Tx =
890~915
Rx = 935~960MHz
DCS Tx =
1710~1785
Rx = 1805~1880MHz
PCS Tx =
1850~1910
Rx =1 930~1990MHz
3) Radiowave Type: E-GSM Tx =
880~915
Rx = 925~960MHz
4) Oscillation Mode:
5) Modulation Mode:
7) Terminal Amp(IC):
8) Channel Separation:
10) IF VCO Frequency:
11) Multiply ing Method:
12) Spurious 1G~4G(-30dBm or below from the FTA s tandard)
GSM850 = 1737.8 ~ 1787.8MHz
EGSM = 1849.8 ~ 1919.8MHz
DCS = 1804.9~1879.9MHz
PCS = 1929.9 ~ 1989.9MHz
GSM900 = 2W(Max)
GSM850 = 2W(Max)
DCS = 1W(Max)
PCS = 1W(Max)
1) Rated Output:
2) Frequency Range:
6) Frequency Stability:
9) RF1 Local Oscillation Frequency:
GSM850 = 896MHz
EGSM = 798MHz
DCS = 766MHz
PCS = 854 MHz
Frequency Multiplying
PLL Synthesize
GM SK
GSM900, GSM850 = 90Hz
DCS, PCS = 180Hz
TQ7M4006
200KHz
E-GSM = 975~1023, 1~124
P-GSM = 1~124
GSM850 = 128 ~ 251
DCS = 512~885
PCS =512 ~ 810
2) Channel Separation: 200KHz
3) Os cillation Mode: PLL Synth es ize
4) RF2 Local Os cillation Frequ ency : GSM850 = 1272 ~ 1297MHz
E-GSM = 1279 ~ 1314MHz
DCS = 1327 ~ 1402MHz
PCS = 1423 ~ 1483MHz
5) Intermediate Frequency: 100KHz
6) Modulation Mode: GMSK
7) Spurious: 1G~4G(-30dbmor below fromthe FTA
standard)
1) Channel Number:

VK Quality Group GSM C/S
CHAPTER 2.
CHAPTER 2.
APPEARANCE & CONFIGURATION
APPEARANCE & CONFIGURATION
1.
1. Appearance Appearance
2.
2. Configuration Configuration
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
☞
☞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)
1) Exploded View Exploded View
2)
2) Mechanical Parts List Mechanical Parts List
3)
3) Ass Ass’ ’y yView View

VK Quality Group GSM C/S
☞
☞Exploded View & Parts List Exploded View & Parts List
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27
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24
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20
25
19
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15
13
12
11
9
8
7
6
5
4
3
2
1
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16
22
48
47
52
46
45
44
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51
50
49
43
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53
54
55
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29
30
31
56
57
58
59
60
61
62
63

VK Quality Group GSM C/S
☞
☞Exploded View & Parts List Exploded View & Parts List
NO. DESCRIPTION Q’TY
1 WINDOW MAIN 1
2 TAPE WINDOW MAIN 1
3 FILT ER RECEIVER 1
4 BUMPER INDICATOR 1
5 FOLDER LOWER 1
6 CUSHION LCD 1
7 RECEIVER 1
8VIBRATOR 1
9LCDMODULE 1
10 FPC MAIN 1
11 MAGNETIC 1
12 SCREW 6
13 FOLDER LOWER 1
14 T AP E DECO MIRROR 1
15 TAPE DECO LOWER B 2
16 BUMPER LOWER 2
17 TAPE DECO LOWER A 1
18 T APE FOLDER LOWER C 1
19 DECO MIRROR 1
20 DECO ACETAL R 1
21 BUMPER HINGE R 1
22 DECO ACETAL L 1
23 BUMPER HINGE L 1
24 DECO LOWER 1
25 SLIDE HINGE 1
26 SCREW 4
27 COVER SCREW FOLDER R 1
28 COVER SCREW FOLDER L 1
29 KEYPAD NAVI 1
30 FPC NAVI ASSY 1
31 DECO FRONT 1
32 CASE FRONT 1
33 GASKET FORM IO 1
34 RUBBER FRONT 1
NO. DESCRIPTION Q’TY
35 GASKET KEYPAD 2
36 CUSHION FRONT EL 1
37 KEYPAD DIAL 1
38 SCREW 6
39 MAIN PCB ASSY 1
40 CAMERA MODULE 1
41 SPEAKER 1
42 KNOB SIDE 1
43 COVER IO 1
44 CUSHION MIC 1
45 INT ENNA 1
46 KNOB CAMERA 1
47 COVER EARJACK 1
48 CUSHION CAMERA 1
49 CASE REAR 1
50 TAPE DECO SPK OUT 1
51 TAPE DECO SPK IN 1
52 DECO SPK 1
53 TAPE WINDOW CAMERA 1
54 WINDOW CAMERA 1
55 SCREW 2
56 T AP E DECO CAMERA 1
57 DECO CAMERA 1
58 KNOB SPRING 1
59 COVER SCREW R 1
60 COVER SCREW L 1
61 KNOB LOCK 1
62 TAPE MOLDULE 1
63 SCREW 4

VK Quality Group GSM C/S
☞
☞Ass Ass’ ’y yView View
Folder Upper Ass’y
Folder Upper
Folder Upper Ass Ass’ ’y y