FLY VK2010 SVC Manual

VK2010

GSM

SERVICE MANUAL

VK Quality Group GSM C/S

☞

spurious noise has been eliminated.

malfunctioning of critical parts(such as IC).

twisted pair wire could reduce the measurement error as the wire contains less RF resistance.

requirements.

Service Guidelines

 Precise adjustment should be made in a shield box or shield room where

 When using magnetized tools, note that related magnetic elements may cause

Use a twisted pair wire of thick type when measuring level. Using such a thick

 When disassembling the phone set, you must use a driver tool meeting standard

 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

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

☞

Overview

VK 2010 Mobile Phone is a Slim Bar type

LCD,MP3,operated in the GSM and Digital Cellular Mobile Radio Sy

which is the Pan--

which is the Pan

VK 2010

GSM

features are also supported.

About the SIM Toolkit, VK 2010 Mobile Phone supports up to Class3 3

About the SIM Toolkit, VK 2010 Mobile Phone supports up to Class

including Class 1, 2. For speech communication, VK 2010 Mobile P

supports Full Rate(FR), Enhanced Full Rate(EFR) and Half Rate(HR

text,

connection.

eZi

Mobile Phone has the operation band of

PhaseII

Text is implemented and WAP protocol is adopted for internet

features are fully supported and parts of the

European mobile cellular standard.

Mobile phone with color

GSM 900 and DCS 1800.

GSM Phase II+

). For easy

hone

stem,

hone

VK 2010 Mobile Phone supports GPRS up to Class 10.

VK Quality Group GSM C/S

☞

Design

Network

Features (HW)

Category Sub-Cate gory Description

Di m e n s ion 90x50x8.8 Weight TBD Form Facto r Sl im Bar Antenna Intenna Radio GS M,EGSM,GPRS

LCD

Camera

Video

Audio

Data Service

R/F band

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 Di gital Zoom No Optical Zoom No Motion JPEG No Camcoder suppor ting No Flashlight No MPEG4 N/A H.263 N/A H.264 N/A Video output N/A Sound forma t MIDI,sp-MIDI,MP3,AAC Ring tones Yes(64Poly MIDI,MP3) MP3 playback Yes Voic e support codec AMR (TBD) SMS/EMS/MMS Yes WAP 2.0 Java N/A

3.5band GSM850,EGSM900,DC S 1800 PCS1900

VK Quality Group GSM C/S

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Features (HW)

Category Sub-Cate gory De s cription

Data S ervice

Me mory

Battery

C o nn ectivi ty

Instant Massage N/A e-mail N/A

Nor/S RAM 128Mb/64Mb Nand Me mory 512Mb Ext ernal M emory No Standard 50x44x35 (820mAh) Extended N/A RS232C Yes USB Yes IrDA No IrRC No Bluetooth Yes PC syncron izat ion Yes

Option

VK Quality Group GSM C/S

Travel charger Adapte r Yes Ear-Microphone Yes Han d strap Yes Battery Charger Yes PC-Sync No

☞

Features (SW)

FUNCTION DETAIL ITEM COMMENTS

Normal features

Call Call waiting Yes Network dependent Audio

Phone book SIM/Phone Languages S/T Chinese & Englis h Type A, D Supplementary services

Short/Multimedia message

Last dialed number 50 entry Last received number 50 entry Last missed number 50 entry

Earpiece volume 5 level Mute on & Mute off Yes

Call barring

Call Diverting Write message Send/Add Object/Remove Object(MMS only)/Page(MMS

All outgoing calls International outgoing calls

International outgoing calls except to home All incoming calls All incoming calls when roaming

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

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

VK Quality Group GSM C/S

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

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

sending(MMS only), profile setting(MMS only), auto download(MMS only) Validity period/SMS cen ter No.(SMS only)

☞

Features (SW)

FUNCTION DETAIL ITEM COMMENTS

Multi-band

Support of multi-band & mode

Miscellaneous function Test facility

Text input

Gallery Photo/Video/Image/Animation

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

EMS Built in GPRS Built in Class 10 Calendar

Alarm

Memo Edit and view 10 Memos Calculator Operator Addition

Unit converter Length conversion

World time Setting local time

MP3 Player

SIM Card Release

Display software version Language English

T9 Predictive word input

Sound/Music

New Delete All Schedule List Morning Call Reminder

Weight conversion Volumes conversion Surface conversion Temperature conversion

Number of selectable cities

Edit Play List Option (Repeat, Shuffle)

Refresh

GSM 850 / PCS 1900 GSM 900 / DCS1800

Simplified Chinese Traditional Chinese

Subtraction Multiplication Division

65 Cities

Release 96

VK Quality Group GSM C/S

☞

Standard

Transmitter

1) Rated Output:

2) Frequency Range:

3) Radiowave Type: EGSM

4)

Oscillation Mode: PLL Synthesize

5) Modulation Mode: GMSK

7) Terminal Amp(IC): TQ7M40220

8) Channel Separation: 200KHz

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

DCS Tx =1710~1785 Rx = 1805~1880MHz PCS Tx =1850~1910 Rx =1930~1990MHz

GSM900 ,GSM850=90Hz6) Frequency Stability: DCS,PCS = 180Hz

Tx =880~915 Rx =925~960MHz

Transmitter

11) Multiplying Method

12) Spurious:

Receiver

1) Channel Number:

3) Oscillation Mode:

4) RF2 Local Oscillation Frequency :

Frequency Multiplying 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

200KHz2) Channel Separation

PLL Synthesize

GSM850 = 1272~1297

E-GSM = 1279~1314

DCS= 1327~ 1402

MHz

9) RF1 Local Oscillation Frequency:

10) IF VCO Frequency:

GSM850=1737.8~1787.8MHz

EGSM = 1849.8~1919.8MHz

DCS=1804.9~1879.9MHz PCS = 1929.9~1989.9MHz GSM850=896MHz EGSM=798MHz DCS =766MHz PCS=854MHz

VK Quality Group GSM C/S

5) Intermediate Frequency:

6) Modulation Mode:

7) Spurious:

PCS =1423 ~1483

100KHz

GMSK

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

MHz

CHAPTER 2.

APPEARANCE & CONFIGURATION

VK Quality Group GSM C/S

1.

2.

3.

Appearance

Icons

LCD Panel

☞

Appearance

VK Quality Group GSM C/S

☞

Icons

VK Quality Group GSM C/S

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Icons

VK Quality Group GSM C/S

☞

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

1) Exploded View & Parts List

VK Quality Group GSM C/S

☞

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 5KEY PBA 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

VK Quality Group GSM C/S

13 M1.4 SCREW 6

2. Disassembling Methods

VK Quality Group GSM C/S

1)

2)

3)

4) LCD Module Disassembling

Tools

Rear Case Disassembling

Main PCB Disassembling

☞

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

☞

Rear Case

Unscrew four screws on the back of the phone.

Turn the screws

anticlockwise

using cross-shaped

screwdriver .

VK Quality Group GSM C/S

Widen a space to

make a gap

Main PCB

Disassembling

VK Quality Group GSM C/S

☞

Main PCB

1 2

3

1. Take off Inter Antenna

VK Quality Group GSM C/S

2. Take off FPCB From connector.

3. Slightly remove Main PBA from Board.

LCD Module

Disassembling

VK Quality Group GSM C/S

☞

1

LCD Module Disassembling

Unhook Part of PBA

2

VK Quality Group GSM C/S

Separate LCD from Connector

☞

2

LCD Module Disassembling

1

Open the LCD Connector with Pin set

VK Quality Group GSM C/S

Pull out LCD from Connector slightly.

CHAPTER 4.

BLOCK DIAGRAM

VK Quality Group GSM C/S

1.

2.

RF Block Diagram

BASEBAND Block Diagram

☞

RF Block Diagram

VK Quality Group GSM C/S

☞

BASEBAND Block Diagram

VK Quality Group GSM C/S

CHAPTER 5.

1.

Overall

SCHEMATIC

2.

3.

4.

5.

6.

7.

8.

Base Band Block

MCP Main Block

Nand

Peripheral & Key Block

Power Management Block

RF Block

Audio & Video Block

Block

VK Quality Group GSM C/S

9.

10.

Folder Block

Battery Charging Block

☞

Overall Structure

VK Quality Group GSM C/S

☞

Base Band Block

VK Quality Group GSM C/S

☞

MCP Main

VK Quality Group GSM C/S

☞

Nand

Block

VK Quality Group GSM C/S

☞

Peripheral & key Block

VK Quality Group GSM C/S

☞

Power Management Black

VK Quality Group GSM C/S

☞

RF Block

VK Quality Group GSM C/S

☞

Audio & Video Block

VK Quality Group GSM C/S

☞

Bluetooth Block

VK Quality Group GSM C/S

☞

Battery Charger Block

VK Quality Group GSM C/S

CHAPTER 6.

PCB DIAGRAM

VK Quality Group GSM C/S

1.

2.

3.

4.

Main PCB

Module Area

RF

Baseband

Area

☞

Main PCB

VK Quality Group GSM C/S

Top

Bottom

☞

Module Area

VK Quality Group GSM C/S

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RF Area

VK Quality Group GSM C/S

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BASEBAND Area

VK Quality Group GSM C/S

CHAPTER 7.

TROUBLE SHOOTING

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

Power--

Power

Melody Trouble

LCD Trouble

Charging Trouble

Backlight Trouble

SIM Detection Trouble

Ear--

Ear

Key Detection Trouble

TX Power Trouble (E--

TX Power Trouble (E

RX Sensitivity Trouble (E--

RX Sensitivity Trouble (E

On Trouble

Phone Trouble

GSM)

VK Quality Group GSM C/S

☞

Power--

Power

On Trouble

VK Quality Group GSM C/S

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Melody Trouble

Start

Wire Con n e c tion with

SPK is alright

Yes

Check the melody

signal is output from

L704, L705

Yes

Replace the

Speaker

NO

Re-soldering of

SPK wire

Check m elody IC

VK Quality Group GSM C/S

END

☞

LCD Trouble

Sta rt

Test M ode

Yes

LCD Cable W ell

sloder

Yes

Main D2V8

OK?

Yes

LCM co ntrol & D ata

signal OK?

Yes

Replace LCM

END

NO

U701 All right

NO

Replace U701

Resoldering

Check PMIC

Yes

Check WHAT3

VK Quality Group GSM C/S

☞

Charging Trouble

Case 1

Start

Charging is not

working

Case 2

NO

Reassemble b a tte ry p a c k

NO

Check battery pack

NO

Check TA, CLA,

and DTC

NO

Remount J401

The Battery pack is

w e ll co n ta c t to th e

phone

Yes

The battery voltage

is between

3.4V~4.2V

Yes

TA, CLA, DTC

voltage to 5.2V/

400m A

Yes

J401 connector is

well soldered on the

PCB

Yes

When CHG _IN 5V

then U503 3pins

are high?

Yes

When U503 3pins

are high then U503

pin5 is high?

Yes

Re-download S/W

END

NO

Check Q501,U502

NO

Replace u503

VK Quality Group GSM C/S

☞

Backlight Trouble

LCM : LCD Module Conn : Connecter

Resoldering J703 NO

Check U201 NO

Check U502

Key BL

J703 Good Soldering?

YES

KEY_BL_EN

HIGH?

YES

Key_BL

Low?

YES

Replace Keypad

START

LCD BL

LCD FPCB

Go o d Soldering?

YES

LCD_EN

High?

YES

Check U703

YES

Replace LCM

NO

Resolder

LCD FPCB

Check V250G

Replace U703

VK Quality Group GSM C/S

END

☞

SIM Detection Trouble

VK Quality Group GSM C/S

☞

Ear--

Ear

Phone

Trouble

START

Headset Detect

possible?

HS_D ET alright?

YES

O u tp u t fro m R 4 2 3 ,

R424 is good?

YES

Check Headset and

Earphone

NO

Check Headset and

V250G

Ch eck V250G, U702

VK Quality Group GSM C/S

END

☞

KEY Detection

Trouble

START

KEY Detect

trouble

J7 0 3 ins e rt to B L

Keypa d socket?

YES

Che ck key pad

B utte n

YES

Check U 201

END

NO

Ins e rt J 70 3 to

BL K eypa d socket

Key pad change

VK Quality Group GSM C/S

☞

TX Power Trouble (E--

TX Power Trouble (E

GSM)

START

Set

• Phone : Test mode 62CH, 7level setting (TCH) 62CH, -60dBm setting (BCCH)

• Spectrum analyzer as shown in Remarks.

• Oscilloscope as shown in Remarks.

Check DCXO

X601 pin 1, 3 26MHz X-Tal.

Frequency = 26.00MHz

Signal ≥ 1.0

Vp-p

YES

Check

Transceiver

U603 pin 4,5,6,7

I/Q signal ≥ DC 1.35 ~ 1.70Vp-p.

YES

Check Transceiver U603 pin 15

Frequency & Pow er.

Frequency = 902.4 MHz

Power ≥ 6dBm

Remarks

1. Spectrum analyzer : SPAN = 1M Hz

Press the trace key of spectrum analy zer on chec king test point and press the max hold key of spect ru m ana ly zer

2. Oscilloscope : 500mV/div, 2ms/div

3. RF Cable Loss : about 0.3dB (KAE Cable)

Check :

NO

• X601 soldering. Replace X601 if defective.

Check :

NO

• U603 soldering.

•V250G

•S/W.

Check :

NO

• U603 soldering

• U603 pin 25,26,29,28,11,12,13 DC 2.8V ±5% Replace U603 if defectiv e.

RBW = 3MHz VBW = 1MHz

VK Quality Group GSM C/S

YES

GO to A

☞

TX Power Trouble (E--

TX Power Trouble (E

GSM)

A

YES

Check

Power Amp U602 pin 8

Frequency & Power.

Frequency = 902.4 MHz

Power = 26~32dBm

YES

Check :

• U602 soldering

• U602 pin 4 VBATT DC voltage (>3.3V)

NO

• U602 pin 3 TX_EN

• U602 pin 2 VC1

• U602 pin 6 TX Power > 0.2V Replace U602 if defective.

≥ 1.8V (High)

≤ 0.5V (Low)

VK Quality Group GSM C/S

Check

ANT Switch U604 pin 16

Frequency & Power.

Frequency = 902.4MHz

Power = 26~32dBm

YES

Check :

• RF connector J601 soldering.

• Matching network L610, C618 soldering.

END

Check :

• U604 soldering

NO

• U604 pin 12 V C1

• U604 pin 13 V C2 ≤ 0.4 (Low) Replace U604 if defective.

≥ 2.8V (High)

☞

RX Sensitivity Trouble

☞

RX Sensitivity Trouble

(E--

(E

GSM)

VK Quality Group GSM C/S

☞

RX Sensitivity Trouble (E--

RX Sensitivity Trouble (E

GSM)

VK Quality Group GSM C/S

APPENDIX.

ELECTRICAL PARTS LIST

Main Parts List

VK Quality Group GSM C/S

☞

Main Parts List

VK Quality Group GSM C/S

☞

Main Parts List

VK Quality Group GSM C/S

☞

Main Parts List

VK Quality Group GSM C/S

☞

Main Parts List

VK Quality Group GSM C/S

THANK YOU !

FLY VK2010 SVC Manual

Specifications and Main Features

Frequently Asked Questions

User Manual