LG MG200 User manual

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M MG200
Service Manual
MG200
P/N : MMBD0047701 (1.0) Date : April 2005
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The information in this manual is subject to change without notice and should not be construed as a
commitment by LGE Inc. Furthermore, LGE Inc. reserves the right, without notice, to make changes to
equipment design as advances in engineering and manufacturing methods warrant.
This manual provides the information necessary to install, program, operate and maintain the MG200.
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Table Of Contents
1. Introduction ....................................... 4
1.1 Purpose ................................................... 4
1.2 Regulatory Information ............................ 4
1.3 Abbreviation .............................................6
2. General Performance ....................... 7
2.1 Product Name ....................................…..7
2.2 Supporting Standard ................................7
2.3 Main Parts ............................................... 7
2.4 H/W Feature ............................................ 8
2.5 S/W Features .........................................10
3. H/W Circuit Description ..................13
3.1 General Description ...............................13
3.2 Receiver Part .........................................13
3.3 Transmiter Part ...................................... 16
3.4 Digital Baseband(DBB)
Processor .............................................. 20
3.5 Analog Baseband(ABB)
Processor .............................................. 24
3.6 Camera Circuit .......................................42
4. TROUBLE SHOOTING .................... 46
4.1 Main Components Placement
(MG200) ................................................ 46
4.2 FPCB Components Placcement ............47
4.3 Baseband Components .........................47
4.4 Main Components ................................. 47
4.5 Power On Trouble ................................. 49
4.6 Charging Trouble ...................................50
4.7 LCD Display Trouble ............................. 52
4.8 Receiver Trouble ................................... 54
4.9 Microphone Trouble ...............................59
4.10 Vibrator Trouble ................................... 62
4.11 Keypad Backlight Trouble .................... 64
4.12 Folder Open/Close Trouble ................. 66
4.13 SIM Detect Trouble ..............................68
4.14 Earphone Trouble ................................ 70
4.15 Camera Trouble ...................................75
5. DOWNLOAD .................................... 91
5.1 Download Setup .................................... 91
5.2 Download Procedure .............................92
6. SERVICE AND CALIBRATION ........99
6.1 Service S/W ...........................................99
6.2 Calibration ........................................... 102
7. CIRCUIT DAIGRAM ....................... 107
7.1 BB ........................................................107
7.2 AUDIO/MIDI ....................................... 108
7.3 MMI ......................................................109
7.4 CAMERA/SIM/VIB ............................... 110
7.5 LCD I/F .................................................111
7.6 RE RITA............................................... 112
8. PCB LAYOUT ................................. 113
9. ENGINEERING MODE ................... 115
10. STANDALONE TEST ................... 116
10.1 Setting Method ...................................116
11. EXPLODED VIEW &
REPLACEMENT PART LIST ........117
11.1 EXPLODED VIEW ............................. 117
11.2 REPLACEMENT PARTS
<Mechanic component> ................... 119
11.2 REPLACEMENT PARTS
<Main component> ................... 122
11.3 ACCESSORY ................... 133
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1. INTRODUCTION
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1. INTRODUCTION
1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of the MG200
1.2 Regulatory Information
A. Security
Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for
example, persons other than your company’s employees, agents, subcontractors, or person
working on your company’s behalf) can result in substantial additional charges you’re your
telecommunications services. System users are responsible for the security of own system. There
are may be risks of toll fraud associated with your telecommunications system. System users are
responsible for programming and config uring the equipment to prevent unauthorized use. LGE
does not warrant that this product is immune from the above case but will prevent unauthorized
use of common-carrier telecommunication service of facilities accessed through or connected to it.
LGE will not be responsible for any charges that result from such unauthorized use.
B. Incidence of Harm
If a telephone company determines that the equipment provided to customer is faulty and possibly
ca using harm or interruption in service to the telephone network, it should disconnect telephone
service until repair can be done. A telephone company may temporarily disconnect service as long
as repair is not done.
C. Changes in Service
A local telephone company may make changes in its communications facilities or procedure. If
these changes could reasonably be expected to affect the use of the MG200 or compatibility with
the network, the telephone company is required to give advanced written notice to the user,
allowing the user to take appropriate steps to maintain telephone service.
D. Maintenance Limitations
Maintenance limitations on the MG200 must be performed only by the LGE or its authorized agent.
The user may not make any changes and/or repairs expect as specifically noted in this manual.
Therefore, note that unauthorized alternations or repair may affect the regulatory status of the
system and may void any remaining warranty.
E. Notice of Radiated Emissions
The MG200 complies with rules regarding radiation and radio frequency emission as defined by
local regulatory agencies. In accordance with these agencies, you may be required to provide
information such as the following to the end user.
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1. INTRODUCTION
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F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
G. Interference and Attenuation
An MG200 may interfere with sensitive laboratory equipment, medical equipment, etc. Interference
from unsuppressed engines or electric motors may cause problems.
H. Electrostatic Sensitive Devices
ATTENTION
Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the
sign. Following information is ESD handling:
• Service personnel should ground themselves by using a wrist strap when exchange
systemboards.
•When repairs are made to a system board, they should spread thefloor with anti-static mat which is also
grounded.
• Use a suitable, grounded soldering iron.
• Keep sensitive parts in these protective packages until these are used.
• When returning system boards or parts like EEPROM to the factory, use the protective
package as described.
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1. INTRODUCTION
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1.3 Abbreviations
For the purposes of this manual, following abbreviations apply:
APC Automatic Power Control
BB Baseband
BER Bit Error Ratio
CC-CV Cons tant Current – Constant Voltage
DAC Digital to AnalogConverter
DCS Digital Communication System
dBm dB relative to 1 milliwat t
DSP Digital Signal Processing
EEPROM Electrical Erasable Programmable Read-Only Memory
EL Electroluminescence
ESD Electrostatic Discharge
FPCB Flex ible Printed Circuit Board
GMSK Gaussian Minimum Shift Keying
GPIB General Purpose Interface Bus
GSM Global System for Mobile Communications
IPUI International Portable User Identity
IF Intermediate Frequency
LCD Liquid Crystal Display
LDO Low Drop Output
LED LightEmitting Diode
OPLL Offset Phase Locked Loop
PAM Power Amplifier Module
PCB Printed Circuit Board
PGA Programmable GainAmpli
fi er
PLL Phase Locked Loop
PSTN Public Switched Telephone Net work
RF Radio Frequency
RLR Receiving Loudness Rating
RMS Root Mean Square
RTC Real Time Clock
SAW Surface Acoustic Wave
SIM Subscriber Identity Module
SLR Sending Loudness Rating
SRAM Static RandomAccess Memory
STMR Side Tone Masking Rating
TA Travel Adapter
TDD Time Division Duplex
TDMA Time Division Multiple Access
UART Universal Asynchronous Receiver/Transmitter
VCO Voltage Controlled Oscillator
VCTCXO Voltage Control Temperature Compensated Crystal Oscillator
WAP Wireless Application Protocol
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2. GENERAL PERFORMANCE
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2. General Performance
2.1 Supporting Standard
MG200 : Support GPRS (Class 10)
2.2 Supporting Standard
Supporting Standard GSM 850/PCS 1900 Dual-Band
with seamless handover
Phase 2+ (include AMR)
SIM Toolkit : Class 1, 2, 3, A~E
GSM 850 TX : 824 - 849 MHz
GSM 850 RX : 824 - 849 MHz
PCS1900 TX : 824 - 849 MHz
PCS 1900 RX : 824 - 849 MHz
WAP 2.0
JAVA 2.0
MMS
IM : WV 1.1
Frequency Range
ItemFeatureComment
Application Standard
Calypso - AMR C035(PD751992GHH)
IOTA(TWL3025)
RITA / TRF6151C PG2.4
Digital Baseband
Analog Baseband
RF Chip
2.3 Main Parts : GSM Solution
For the purposes of this manual, following abbreviations apply:
Supporting Standard GSM 850/PCS 1900 Dual-Band
with seamless handover
Phase 2+ (include AMR)
SIM Toolkit : Class 1, 2, 3, A~E
GSM 850 TX : 824 - 849 MHz
GSM 850 RX : 824 - 849 MHz
PCS1900 TX : 824 - 849 MHz
PCS 1900 RX : 824 - 849 MHz
WAP 2.0
JAVA 2.0
MMS
IM : WV 1.1
Frequency Range
ItemFeatureComment
Application Standard
Calypso - AMR C035(PD751992GHH)
IOTA(TWL3025)
RITA / TRF6151C PG2.4
Digital Baseband
Analog Baseband
RF Chip
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2. GENERAL PERFORMANCE
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One button access
Item
Form Factor
Battery
Size
2) Packing Type :Inner Pack
1) Capacity Standard :
Li-lon, Min 1000mAh (SANYO)
Dual Folder
Sub LCD Icon
Alphanumeric Key
Function Key
Side Key
Total # of Keys
: 12
: 12
: 3
: 27
Function Key :
4 Key Navigation, OK,
F1, F2, SND, END/PWR,
CLR, Camera, Gallery
Weight
Volume
PCB
Status Indicator
Keypad
Stand by time
Charging time
Talk time
RX sensitivity
TX output power
GPRS compatibility
SIMcardtype
Display
Built -in Camera
Feature Comment
Standard :
88.8 x 46 x 24.3mm
96.5g
DRX6
At GSM 850MHz PL 5
Class4 (GSM)
Class1 (PCS)
Size :
34.15 (W) x 53.55(H) x 5.7(T) [mm]
One PCB : 8 Layers, 1t
82.8cc
3 hr.
Min : 3.3 hr.
GSM 850 : -105 dBm
PCS 1900 : -105 dBm
GSM 850 : 33 dBm
PCS 1900 : 30 dBm
GPRS Class 10
Plug-In SIM
3V
Main LCD
128*160, 65K Color STN(1.77”)
Backlight : White LED
Sub LCD
96 x 64 Mono
330K CMOS Camera (VGA)
More than 200 hr.
2.4 H/W Features
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2. GENERAL PERFORMANCE
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Item
ANT
System connector
PC synchronization
3 Pole (2.5mm)
24 Pin
Fixed Type
Memory
Speech coding
Data & Fax
Ear Phone Jack
Vibrator
IrDA
MIDI (for Buzzer
Function)
Voice Recording
Speaker Phone
Travel Adapter
CDROM
Options
Feature Comment
Yes
Flash : 128Mbit
SRAM : 64Mbit
Buzzer Function By Using Speaker
Phone & MIDI IC
Built in Data & Fax support
FR, EFR, HR, AMR
NO
YAMAHA 40 Poly
Yes
Yes
Yes
TBD
Ear-Microphone
Handsfree Car Kit
Simple Handsfree Kit
Cigarette Lighter Adapter
Data Cable
Built in Vibrator
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