FLY VK3100 SVC Manual

GSM

SERVICE MANUAL

VK Quality Group GSM C/S

VK3100

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• 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.

Service Guidelines

• 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

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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.

OVERVIEW & FEATURES

VK Quality Group GSM C/S

1.

2.

3.

Overview

Features

Standard

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Overview

VK 3100 Mobile Phone is a clamshell type MP3, 300

with dual color LCD, operated in the GSM, Digital Cellular Mobil

Personal Communication System, which is the Pan--

Personal Communication System, which is the Pan

VK 3100 Mobile Phone has the operation band of GSM 900, DCS 1800

PCS 1900. GSM Phase II features are fully supported and parts of

features are also supported.

About the SIM Toolkit, VK 3100 Mobile Phone supports up to Class

2.

For speech communication, VK 3100 Mobile Phone supports Full

Full

protocol is adopted for internet connection.

VK 3100 Mobile Phone supports GPRS up to Class 10.

Rate(EFR

) and Half

Rate(HR

). For easy text,

European mobile cellular standard.

eZi

kpixel

Text is implemented and WAP

camera mobile phone

e Radio System and

the GSM Phase II+

3 including Class 1,

Rate(FR

and GSM 850,

), Enhanced

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Features (HW)

Catagory Sub-Catagory Description

98 x 54 x 14.9

82 g with standard battery

Clamshell

Intenna

GSM, EGSM, GPRS

3.5 band GSM850, GSM900, DCS1800, PCS1900

Class B 10 (4+2)

FR, HR, EFR, AMR

CMOS

640 x 480 pixel

x 4

Yes

Motion JPEG

MIDI, sp-MIDI, MP3

Yes (64poly MIDI, MP3)

Yes

AMR (TBD)

Yes

2

MIDP2.0/CLDC1.1

N/A N/A

128 Mb / 64 Mb

512Gb T-flash

Design

Network

LCD

Camera

Audio

Data Service

Memory

Dimension

Weight

Form Factor

Antenna

Radio

R/F band

GPRS Class

Speech Codec

Main display

Sub displqy

Image sensor

Resolution Digital Zoom Motion JPEG

Camcorder supporting

Sound format

Ringtones

MP3 playback

Voice support codec

SMS/EMS/MMS

WAP

Java

Instant Massage

e-mail

Nor/SRAM

Nand

External Memory

176x220 (2.2") 262K color, TFT

96x96 (1.04”) 65K color, CSTN

Catagory Sub-Catagory Description

Battery

Connectivity

Option

RF Output Power Range

Standard

Thickness : Max. 4.6mm (Initial fully charged

Extended RS232C USB Bluetooth PC syncronization

N/A Yes Yes Yes Yes

Travel charger Ear – Microphone Hand strap Battery Charger PC – Sync

GSM850 Min 5dBm ~ Max. 33dBm EGSM900 Min 5dBm ~ Max. 33dBm

DCS1800 Min 0dBm ~ Max. 30dBm PCS1900 Min 0dBm ~ Max. 30dBm

46x30x48 (680mAh)

Width : Max. 30.1mm

Height : Max. 48.2mm

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Features (SW)

FUNCTION DETAIL ITEM COMMENTS

Normal features

Call Call waiting Yes Network dependent Audio

Phone book SIM/Phone Languages S/T Chinese & English Type A, D

Supplementary services

Short/Multimedia message

Last dialed number 40 entry Last received number 50 entry Last missed number 20 entry

Earpiece volume 5 level Mute on & Mute off Yes

Call barring

Call Diverting Write message Send/Add Object/Remove Object(MMS

Outbox(unsent items/sent items) Send/Edit/Delete/Delete All/Copy to

Inbox Delete/Delete All/Reply/Reply All(MMS

All outgoing calls International outgoing calls

International outgoing calls except to home All incoming calls

All incoming calls when roaming

only)/Page(MMS only)/Save/Edit Subject(MMS only)/Preview(MMS only)/Exit/Add Contact/Edit Email(MMS only)

SIM,Phone(SMS only)/Move to SIM,Phone(SMS only)/Details(MMS only)

only)/ Forward/Callback/Extract/Details/Copy to SIM,PHONE(SMS only)/Move to SIM,PHONE(SMS only)

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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)

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Features (SW)

FUNCTION DETAIL ITEM COMMENTS

Multi-band Support of multi-band & mode

Miscellaneous function

Text input

Gallery

Camera Photo shot/Sticker shot/Video clip WAP Built in WAP 2.0

EMS B uilt in GPRS Built in Class 10 Calendar

Alarm

Memo Edit and view 10 Memos

Test facility Display software version

Language

T9 Predictive word input Photo/Video/Image/Animation Sound/Music

New Delete All Schedule List Morning Call Reminder

GSM 850 / PCS 1900 GSM 900 / DCS1800

English Simplified Chinese Traditional Chinese

Calculator Operator

Unit converter

World time

MP3

SIM Card

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Addition Subtraction Multiplication Division

Length conver s i on 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

Refresh O

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Standard

Transmitter

1) Rated Output: GSM900 = 2W(Max ) GSM850 = 2W(Max ) DCS = 1W(Max) PCS = 1 W(Max )

2 ) Frequency Range:

3) Radiowave Type: E-GSM Tx = 880~915 Rx = 925~960MHz

4) Oscillation Mode:

5 ) Modulation Mode:

6) Frequency Stability: G SM900, GSM850 = 90Hz

7) Terminal Amp(IC):

8 ) Ch an ne l Se pa rati on:

9) RF1 Local Oscillation Frequency: GSM850 = 1737.8 ~ 1787.8MHz

1 0) IF VCO Fr e quenc y:

11) Multiplying Method:

1 2) Spurious

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

PLL Synthe size GMSK

DCS, PCS = 180Hz TQ7M4006 200KHz

EGSM = 1849.8 ~ 1919.8MHz DCS = 1804.9~1879.9MHz PCS = 1929.9 ~ 1989.9MHz GSM850 = 896MHz EGSM = 798MHz DCS = 766MHz PCS = 8 5 4 MHz Frequency Multiplying 1G~4G(-30dBm or below from the FTA standard)

Receiver

1) Channel Number:

2) Channel Separation: 200KHz

3) Oscillation Mode: PLL Synthesize

4) RF2 Local Oscillation Frequency:

5) Intermediate Frequency: 100KHz

6) Modulation Mode: GMSK

7) Spurious: 1G~4G(-30dbm or below from the FTA standard)

E-GSM = 975~1023, 1~124

P-GSM = 1~124 GSM850 = 128 ~ 251 DCS = 512~885

PCS =512 ~ 810

GSM850 = 1272 ~ 1297MHz E-GSM = 1279 ~ 1314MHz DCS = 1327 ~ 1402MHz

PCS = 1423 ~ 1483MHz

VK Quality Group GSM C/S

CHAPTER 2.

APPEARANCE & CONFIGURATION

VK Quality Group GSM C/S

1.

2.

3.

Appearance

Configuration

LCD Panel

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Appearance

VK Quality Group GSM C/S

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Icons

VK Quality Group GSM C/S

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Icons

VK Quality Group GSM C/S

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Icons

VK Quality Group GSM C/S

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LCD Panel

VK Quality Group GSM C/S

CHAPTER 3.

ASSEMBLING & DISASSEMBLING

VK Quality Group GSM C/S

1.

2.

Assembly Drawings

Disassembling Methods

1. Assembly Drawings

VK Quality Group GSM C/S

1)

2)

3)

Exploded

Mechanical Parts List

Ass’’yy

Ass

View

Ass’’yy

Ass

View

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Exploded View & Parts List

NO. DE SCRIPTION Q’TY

1Deco Speaker 1 2 Indicator 1 3 Window Camer a 1 4Deco Camera 1 5 Folder Upper 1 6 C ushion Wi ndow Sub 1 7 LCD Module 1 8 C ushion Wi ndow Main 1

9 LCD Module 1 10 Magnet 1 11 Folder Lower 1 12 Hinge 1 13 Window Main 1 14 Deco Ear 1 15 Screw 8 16 R ubbe r Screw F older 1 17 R ubbe r Stopper 1 18 R ubbe r Damper 1 19 Metal Keypad 1 20 R ubbe r Screw Main 5 21 C a se Front 1 22 EL FPCB 1 23 EL Plate 1 24 R ubbe r Mic 1 25 Main Board 1 26 Knob Side 1 27 Guide Sim Card 1 28 Sim Pl ate 1 29 C ove r T-Fresh 1 30 C ove r US B 1 31 Knob Lock 1 32 Spring K nob Lock 1 33 Case Rear 1 34 Battery Cell 1 33 C ove r Batt e ry 1 34 C ove r RF 1

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Ass’’yy

Ass

View

Folder Front

Folder Front Ass’y

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Ass’’yy

Ass

☞

Ass’’yy

Ass

View

Folder Lower

Folder Lower Ass’y

VK Quality Group GSM C/S

Ass’’yy

Ass

☞

Ass’’yy

Ass

View

Front Case

Front Case Ass’y

VK Quality Group GSM C/S

Ass’’yy

Ass

☞

Ass’’yy

Ass

View

Rear Case

Rear Case Ass’y

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Ass’’yy

Ass

2. Disassembling Methods

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1)

2)

3)

4)

5)

Tools

Rear Case Disassembling

Main PCB Disassembling

Folder Disassembling

Exploded view

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Tool Preparation

Disassembling tools are as below :

1. Star-shaped(*) Screw Driver

2. Hinge Remover

3. Tweezers

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.

VK Quality Group GSM C/S

4. Cross-tip(+) Screw Driver

Rear Case Disassembling

VK Quality Group GSM C/S

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Unscrew four screws on the back of the phone.

Screws

1

Turn the screws

anticlockwise

2

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using cross-shaped

screwdriver .

Use a screwdriver meeting standard specifications to unscrew.