LG GD580 User manual

Service Manual Model : GD580
Internal Use Only
Service Manual
GD580
Date: November, 2009 / Issue 1.0

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Table Of Contents
1. Introduction ...................................................5
1.1 Purpose......................................................................5
1.2 Regulatory Information.................................................5
1.3 Abbreviation................................................................7
2. performance................................................... 9
2.1 System Overview.........................................................9
2.2. Usable environment ..................................................10
2.3 Radio Performance....................................................11
2.4 Current Consumption.................................................19
2.5 RSSI .........................................................................19
2.6 Battery Bar................................................................19
2.7 Sound Pressure Level ................................................20
2.8 Charging...................................................................21
3. Technical brief .............................................22
3.1 Digital Baseband(DBB) & Multimedia Processor...........22
3.2 GAM Hardware Subsystem.........................................44
3.3. Audio Part ................................................................53
3.4 GPADC(General Purpose ADC) and AUTOADC2............61
3.5 Charger control .........................................................62
3.6. Voltage Regulation ....................................................68
3. 7 RF Technical Description ...........................................69
4. Trouble Shooting.......................................... 79
4.1 Power ON Trouble......................................................79
4.2 USB Trouble ..............................................................80
4.3 SIM Detect Trouble ....................................................81
4.4 MicroSD card Trouble ................................................82
4.5 Key and Touch Screen Trouble....................................83
4.6 Camera Trouble.........................................................85
4.7 Main LCD Trouble......................................................92
4.8 Keypad Backlight Trouble ...........................................96
4.9 Audio Trouble Shooting ..............................................99
4.10 Charger Trouble Shooting.......................................113
4.11 Bluetooth Trouble...................................................116
4.12 RF Component ......................................................119
4.13 Procedure to check ...............................................120
4.14 Checking Common Power Source Block..................121
4.15 Checking VCXO Block ............................................128
4.16 Checking Front End Module Block ..........................132
4.17 Checking Front End Module Block input logic ..........133
4.18 Checking WCDMA Block ........................................142
4.19 Checking GSM Block .............................................155
5. Download ................................................... 167
5.1 Requirements..........................................................167
5.2. GD580 Download ...................................................168
5.3 Trouble Shooting......................................................175
6. Block diagram............................................ 170
7. Circuit Diagram.......................................... 181
8. BGA Pin Map ..............................................191
9. PCB Layout................................................. 197
10. Calibration................................................205
10.1 General Description ...............................................205
10.2 XCALMON Environment .........................................205
10.3 Calibration Environment .........................................206
10.4 Program Operation ................................................207
11. Exploded view & Replacement part list . 213
11.1 Exploded view .......................................................213
11.2 Replacement Parts ................................................215
12.3 Accessory .............................................................237

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 5 -
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. Introduction
1. Introduction
1. INTRODUCTION
1.1.Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of the KM555E.
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 for your telecommunications services.
System users are responsible for the security of own system.
There might be risks of toll fraud associated with your telecommunications system. System users are
responsible for programming and configuring 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
causing 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 KM555E or compatibility with the net
work, 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 KM555E 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.
GD580.
GD580
GD580

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1. Introduction
KM555E service manual
E. Notice of Radiated Emissions
This model 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.
F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
G. Interference and Attenuation
KM555E 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 system boards.
• When repairs are made to a system board, they should spread the floor 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.
GD580

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. Introduction
1. Introduction
KM555E service manual
For the purposes of this manual, following abbreviations apply:

APC Automatic Power Control

BB Baseband

BER Bit Error Ratio

CC-CV Constant Current – Constant Voltage

CLA Cigar Lighter Adapter

DAC Digital to Analog Converter

DCS Digital Communication System

dBm dB relative to 1 milli-watt

DSP Digital Signal Processing

EEPROM Electrical Erasable Programmable Read-Only Memory

EGPRS Enhanced General Packet Radio Service

EL Electroluminescence

ESD Electrostatic Discharge

FPCB Flexible Printed Circuit Board

GMSK Gaussian Minimum Shift Keying

GPIB General Purpose Interface Bus

GPRS General Packet Radio Service

GSM Global System for Mobile Communications

IPUI International Portable User Identity

IF Intermediate Frequency

LCD Liquid Crystal Display

LDO Low Drop Output

LED Light Emitting Diode

LGE LG Electronics

OPLL Offset Phase Locked Loop

PAM Power Amplifier Module

PCB Printed Circuit Board

PGA Programmable Gain Amplifier

PLL Phase Locked Loop
1.3 Abbreviation

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1. Introduction
KM555E service manual

PSTN Public Switched Telephone Network

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 Random Access Memory

STMR Side Tone Masking Rating

TA Travel Adapter

TDD Time Division Duplex

TDMA TimeDivisionMultipleAccess

UART Universal Asynchronous Receiver/Transmitter

VCO Voltage Controlled Oscillator
VCTCXO

Voltage Control Temperature Compensated Crystal
Oscillator
WAP

Wireless Application Protocol
8PSK 8PhaseShiftKeying

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. Performance
2. Performance
2.1 System Overview
Item Specifications
Band GSM Triple Band(900/1800/1900), UMTS, Bluetooth
Type Folder type
Dimension 108.3 x 51.5 x 13.4mm
Weight 103.5g [87.0g With out Battery]
Power 800mAh Li-Ion
Talk Time Over 170 Min (WCDMA, Tx=12dBm, @ Voice)
Over 180 Min (GSM, Tx=Max, @ Voice)
Stand-by Time Over 250 hours (WCDMA, DRX=7
GSM, Paging period=5)
Antenna Intenna Type
LCD(Main) 240x400Pixel
Back Light Yes
Back Light color White
Vibrator Yes (Coin Type)
Speaker Yes
MIC Yes ( SMT Type) /2EA
1 for speaker phone/1 for Voice call
Receiver Yes
Earphone Jack Yes
SIM Socket Yes(SIM Block Type) : 3.0V & 1.8V
Volume Key Push Type(+,-)
Voice Key Push Type
I/O Connect 18 Pin

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. Performance
2.2 Usable environment
1) Environment
2) Environment (Accessory)
* CLA : 12~24V (DC)
Item Spec. Unit
Voltage 3.7 (Typ), 3.4 (Min), (Shut Down: 3.2) V
Operating Temp. -20 ~ + 60 °C
Storage Temp. -30 ~ + 85 °C
Humidity max. 85 %
Item Spec. Min Typ. Max Unit
Power Available power 100 220 240 Vac

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. Performance
2.3 Radio Performance
1) Transmitter – GSM Mode
NO ITEM GSM900 DCS1800 PCS1900
1
Conducted
Spurious
Emission
MS
allocated
Channel
9k ~ 1GHz -36dBm
9k ~ 1GHz -36dBm
9k ~ 1GHz -36dBm
1G ~ 1710MHz -30dBm
1G ~ 12.75GHz -30dBm
1710M ~
1785MHz -36dBm
1G ~ 12.75GHz -30dBm
1785M ~
12.75GHz -30dBm
Idle Mode
9k ~ 880MHz -57dBm 9k ~ 880MHz -57dBm 9k ~ 880MHz -57dBm
880M ~ 915MHz -59dBm 880M ~ 915MHz -59dBm 880M ~ 915MHz -57dBm
915M ~ 1000Mz -57dBm 915M ~ 1000MHz -57dBm 915M ~ 1000MHz -57dBm
1G ~ 1.71GHz -47dBm 1G ~ 1.71GHz -47dBm 1G ~ 1.85GHz -47dBm
1.71G ~
1.785GHz -53dBm 1.71G ~ 1.785GHz -53dBm 1.85G ~ 1.91GHz -53dBm
1.785G ~
12.75GHz -47dBm 1.785G ~ 12.75GHz -47dBm 1.91G ~ 12.75GHz -47dBm
Radiated
Spurious
Emission
MS
allocated
Channel
30M ~ 1GHz -36dBm
30M ~ 1GHz -36dBm
30M ~ 1GHz -36dBm
1G ~ 1710MHz -30dBm
1G ~ 4GHz -30dBm
1710M ~
1785MHz -36dBm
1G ~ 4GHz -30dBm
1785M ~ 4GHz -30dBm
Idle Mode
30M ~ 880MHz -57dBm 30M ~ 880MHz -57dBm 30M ~ 880MHz -57dBm
880M ~ 915MHz -59dBm 880M ~ 915MHz -59dBm 880M ~ 915MHz -59dBm
915M ~
1000MHz -57dBm 915M ~ 1000MHz -57dBm 915M ~ 1000MHz -57dBm
1G ~ 1.71GHz -47dBm 1G ~ 1.71GHz -47dBm 1G ~ 1.85GHz -47dBm
1.71G ~
1.785GHz -53dBm 1.71G ~ 1.785GHz -53dBm 1.85G ~ 1.91GHz -53dBm
1.785G~ 4GHz -47dBm 1.785G~ 4GHz -47dBm 1.91G~ 4GHz -47dBm
2 Frequency Error 0.1ppm 0.1ppm 0.1ppm
3 Phase Error 5(RMS)5(RMS)5(RMS)
20(PEAK)20(PEAK)20(PEAK)

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. Performance
NO ITEM GSM900 DCS1800 PCS1900
4
Frequency Error
Under
3dB below reference
sensitivity
3dB below reference
sensitivity
3dB below reference
sensitivity
Multipath and RA250: 300Hz RA130: 400Hz RA130: 420Hz
interference HT100: 180Hz HT100: 350Hz HT100: 370Hz
Condition TU50: 160Hz TU50: 260Hz TU50: 280Hz
TU3: 230Hz TU1.5: 320Hz TU1.5: 330Hz
5Output RF
Spectrum
Due to
modulati
on
0 ~ 100kHz +0.5dB 0 ~ 100kHz +0.5dB 0 ~ 100kHz +0.5dB
200kHz -30dB 200kHz -30dB 200kHz -30dB
250kHz -33dB 250kHz -33dB 250kHz -33dB
400kHz -60dB 400kHz -60dB 400kHz -60dB
600 ~ 1800kHz -60dB 600 ~ 1800kHz -60dB 600 ~ 1200kHz -60dB
1800 ~ 3000kHz -63dB 1800 ~ 6000kHz -65dB 1200 ~ 1800kHz -60dB
3000 ~ 6000kHz -65dB >= 6000kHz -73dB 1800 ~ 6000kHz -65dB
>=6000kHz -71dB >= 6000kHz -73dB
Due to
Switchin
g
transient
400kHz -19dB 400kHz -22dB 400kHz -22dB
600kHz -21dB 600kHz -24dB 600kHz -24dB
1200kHz -21dB 1200kHz -24dB 1200kHz -24dB
1800kHz -24dB 1800kHz -27dB 1800kHz -27dB
7Intermodulation
attenuation -
Frequency offset 800kHz
-
Intermodulation product
should be Less than 50dB
below the level of Wanted
signal
8Transmitter Output
Power
Power
control Power Power control Power Toleran ce
Power
control Power Toleran ce
Level (dBm) Level (dBm) (dB) Level (dBm) (dB)
533
30 30 30 30 3
631
31 28 31 28 3
729
32 26 32 26 3
827
33 24 33 24 3
925
34 22 34 22 3
10 23 35 20
35 20 3
11 21 36 18
36 18 3
12 19 37 16
37 16 3
13 17 38 14
38 14 3
14 15 39 12
49 12 4
15 13 310 10410 104
16 11 511 8 411 8 4
17 9 512 6 412 6 4
18 7 513 4 413 4 4
19 5 514 2 514 2 5
15 0 515 0 5
9 Burst timing Mask IN Mask IN Mask IN
*. Output RF Spectrum (Modulation) Absolute Specification <3GPP TS 05.05, subclause 4.2.1>
Frequency offset from the carrier GSM 400 & GSM 900
& GSM 850 DCS 1 800 &PCS 1 900
< 600 kHz 36 dBm 36 dBm
³ 600 kHz, < 1 800 kHz 51 dBm 56 dBm
³1800kHz 46 dBm 51 dBm

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. Performance
2) Transmitter – WCDMA Mode
No
1
2
3
4
5
6
7
8
9
10
11
12
13
Spectrum emission Mask
-35-15*(f-2.5)dBc@f=2.5~3.5MHz, 30k
-35-1*(f-3.5)dBc@f=3.5~7.5MHz, 1M
-39-10*(f-7.5)dBc@f=7.5~8.5MHz, 1M
-49 dBc@f=8.5~12.5MHz, 1M
Adjacent Channel
Leakage Ratio(ACLR)
-33dBc@5MHz, ACP>-50dBm
-43dBc@10MHz, ACP>-50dBm
Change of TFC
±25us
power varies according to the data rate
DTX: DPCH off
(minimize interference between UE)
Power setting in uplink
compressed ±3dB(after 14slots transmission gap)
Inner Loop Power control
in uplink
Adjust output (TPC command)
cmd 1dB 2dB 3dB
+1 +0.5/1.5 +1/3 +1.5/4.5
0 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5
-1 -0.5/-1.5 -1/-3 -1.5/-4.5
group(10equal command group)
+1 +8/+12 +16/+24
Occupied
Bandwidth(OBW) < 5MHz(99%)
Out-of-synchronization
handling of output power
Qin/Qout:DPCCH quality levels
Toff@DPCCH/lor:-22->-28dB
Ton@DPCCH/lor:-24->-18dB
Transmit OFF Power -56dBm(3.84M)
Transmit ON/OFF Time
Mask
±25us
PRACH, CPCH, uplink compressed mode
Minimum Output Power < -50dBm(3.84MHz)
Item Specification
Maximum Output Power Class3: +24dBm(+1/-3dB)
Frequency Error ±0.1ppm
Open Loop Power control
in uplink ±9dB@normal, ±12dB@extreme

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. Performance
14
15
16
17
Spurious Emissions
*: additional requirement
-36dBm@f=9~150KHz, 1k BW
-36dBm@f=150KHz~30MHz, 10k
-36dBm@f=30~1000MHz, 100k
-30dBm@f=1~12.75GHz, 1M
-41dBm*@1893.5~1919.6MHz, 300k
-67dBm*@925~935MHz, 100k
-79dBm*@935~960MHz, 100k
-71dBm*@1805~1880MHz, 100k
Transmit OFF Power -15dB@SF=4, 768kbps,
multi-code transmission
Transmit Intermodulation -31dBc@5MHz, Interferer -40dBc
-41dBc@10MHz, Interferer -40dBc
Error Vector
Magnitude(EVM)
17.5% (>-20dBm)
(@12.2k, 1DPDCH+1DPCCH)

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. Performance
3) Receiver - GSM Mode
NO
1
400kHz
Item GSM850/GSM900 DCS1800/PCS1900
Sensitivity (TCH/FS Class
II) -105dBm -105dBm
2’nd interferer: -44dBm
2
Co-Channel Rejection
(TCH/FS Class II,RBER,
TUhigh/FH)
C/Ic= 7dB C/Ic= 7dB
3
Adjacent
Channel
Rejection
(Speech
Channel)
200kHz C/Ia1= -12dB C/Ia1= -12dB
C/Ia2= -44dB C/Ia2= -44dB
4 Intermodulation Rejection
Wanted Signal: -98dBm Wanted Signal: -96dBm
1’st interferer: -44dBm 1’st interferer: -44dBm
2’nd interferer: -45dBm
5Blocking Response
(TCH/FS Class II, RBER)
Wanted Signal: -101dBm
Unwanted Signal: Depend on freq.
Wanted Signal: -101dBm
Unwanted Signal: Depend
on freq.

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. Performance
4) Receiver – WCDMA Mode
No
1
2
3
6
8 Spurious Emissions
-47dBm@f=1~12.75GHz, 1M
-60dBm@f=1920~1980MHz, 3.84MHz
-60dBm@f=2110~2170MHz, 3.84MHz
Spurious Response -44dBm CW
UE@+20dBm output power(class3)
7Intermodulation
Characteristic
-46dBm CW@10MHz &
-46dBm/3.84MHz@20MHz
UE@+20dBm output power(class3)
-57dBm@f=9KHz~1GHz, 100k BW
4 In-band Blocking
-56dBm/3.84MHz@10MHz
UE@+20dBm output power(class3)
-44dBm/3.84MHz@15MHz
UE@+20dBm output power(class3)
5 Out-band Blocking
-44dBm/3.84MHz@f=2050~2095 &
2185~2230MHz, band a)
UE@+20dBm output power(class3)
-30dBm/3.84MHz@f=2025~2050 &
2230~2255MHz, band a)
UE@+20dBm output power(class3)
-15dBm/3.84MHz@f=1~2025 &
2255~12500MHz, band a)
UE@+20dBm output power(class3)
Item Specification
Reference Sensivitivity
Level -106.7dBm(3.84M)
Maximum Input Level
-25dBm(3.84MHz)
-44dBm/3.84MHz(DPCH_Ec)
UE@+20dBm output power(class3)
Adjacent Channel
Selectivity(ACS)
33dB
UE@+20dBm output power(class3)

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. Performance
5) Bluetooth Mode
5.1) Transmitter
No Item
1OutPower
2PowerDensity
TX Output Spectrum
-Frequency range
TX Output Spectrum
-20dB Bandwidth
Tx Output Spectrum
-Adjacent channel Po
8 Init. Carrier Freq. Tolerance
Freq.Range Operating standby
30MHz~1GHz -36dBm -57dBm
Above 1GHz~12.75GHz -30dBm -47dBm
1.8~1.9GHz -47dBm -47dBm
5.15~5.3GHz -47dBm -47dBm
Specification
Carrier Frequency Drift
Modulation Characteristics
Power Control
2dBstep size8dB
fmax & fmin @ below the level of -30dBm(100khz BW)
Class 2 : -6~4dBm
Power density < 20dBm per 100kHz EIRP
9
5
Out of Band Spurious Emissions
5 slot : ± 40kHz
Maximum drift rate 20KHz/50usec
within 2.4GHz~2.4835GHz
≤1MHz
≤

≤-40dBm @ C/I 3MHz
1 slot : ± 25kHz
3 slot : ± 40kHz
140kHz delta f1 avg 175kHz
4
6
7
3
delta f2max 115kHz at least 99.9% of all deltaf2max
delta f2avg/deata f1avg0.8
≤±75KHz
Option
10

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. Performance
5.2) Receiver
11 Sensitivity single slot packets
12 Sensitivity multi slot packets
Interference
Co-Channel interference, C/I co-channel
Adjacent(1MHz)interference, C/I 1MHz
Adjacent(2MHz)interference, C/I 2MHz
Adjacent(3MHz)interference, C/I 3MHz
Adjacent(3MHz)interference to in band
mirror frequency, C/I image ±1MHz
interfering Signal Frequency
30MHz~2000MHz
2000MHz~2400MHz
2500MHz~3000MHz
3000MHz~12.75GHz
16 Maximum Input Level
C/I performance
Blocking Characteristic
Intermodluation Performance
BER'0.1%@-70dBm
BER'0.1%@-70dBm
11dB
0dB
-30dB
BER 0.1%@-20dBm
BER 0.1%@wanted signal -67dBm
-27dBm
-27dBm
-10dBm
BER 0.1%@wanted signal -64dBm
Power Level
-10dBm
static sinwave signal at f1=-39dBm
13
14
15
a BT modulated signal f2=-39dBm(payload PRBS15)
-40dB
-9dB
-20dB
Ratio
BER 0.1%@ (Low,Mid,High Frequency)
2405MHz,2441MHz,2477MHz

- 19 -
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. Performance
2.4 Current Consumption
2.5 RSSI
2.6 Battery Bar
Indication Voltage
BAR 3 (100%) : Level Full 4.17V 0.05V
BAR 3 (41%) -> 2 󰳱(13%) 3.73 0.05V
BAR 2 (13%) -> 1 󰳱(4%) 3.54 0.05V
BAR 1 (4%) -> Icon Blinking&
Alerting Sound
3.43 0.05V
POWER OFF 3.20 0.05V
Stand by Voice Call VT
WCDMA 250 Hours = 3.2 mA
(DRX=7)
170 Min = 270 mA
(Tx=12dBm)
100 Min = 450mA
(Tx=12dBm)
GSM 250 Hours = 3.2 mA
(Paging period=5)
180 Min = 260 mA
(Tx=Max)
GSM WCDMA
BAR 7 -> 5 -93 󰆚2dBm -90 󰆚2dBm
BAR 5 -> 4 -98 󰆚2dBm -103 󰆚2dBm
BAR 4 -> 2 -101 󰆚2dBm -107 󰆚2dBm
BAR 2 -> 1 -104 󰆚2dBm -109 󰆚2dBm
BAR 1 -> 0 -106 󰆚2dBm -111 󰆚2dBm
(VT test : Speaker off, LCD backlight On)
(VT test WCDMA Up Link Max Power : 21dBm)
(WCDMA Up Link Max Power : 24dBm)

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. Performance
2.7 Sound Pressure Level
NOM
MAX
NOM
MAX
NOM
MAX
NO ITEM Specification
1 Sending Loudness Rating (SLR)
2 Receiving Loudness Rating (RLR)
8±3dB
17dB over3 Side Tone Masking Rating (STMR)
-4±3dB
-8dB ~ -5dB
NOM
MAX
5
6
NOM
MAX
NOM
MAX
MS
8 I dle N ois e -Re ce iv ing ( I NR)
58dB over
Refer to T ABLE 30.4
-57dBm0p below
-64dBm0p below
Sendin
g
Distortion
(
SD
)
Receivin
g
Distortion
(
RD
)
I dle N ois e-Se nding ( I NS)
Refer to T ABLE 30.3
7
4 Echo Loss (EL)
-54dBm0p below
NOM
MAX
NOM
MAX
NOM
MAX
NOM
MAX
9
10
11
Receiving Loudness Rating (RLR)
12 Echo Loss (EL)
Sending Loudness Rating (SLR)
Side T one Masking Rating (STMR)
-12±3dB
-1±3dB
25dB over
HEAD
SET
8±3dB
40dB over
13
14
NOM
MAX
NOM
MAX
SEND
REV.
Sendin
g
Distortion
(
SD
)
Refer to T ABLE 30.3
15 I dle N ois e-Sending ( I NS) -55dB m 0p be low
Receivin
g
Distortion
(
RD
)
Refer to T ABLE 30.4
16 I dle N ois e-Re ce iv ing (I NR) -45dBm0p below
-40dBm0p below
TDMA NOISE
-.GSM:Power Level:5
MS
GSM
SEND
REV.
SEND
REV.
SEND
REV.
17
DCS:Power Level:0
(Cell Power:90~105dBm)
-.Acoustic(Max Vol.)
MS/HEADSET SLR:8±3dB
MS/HEADSET RLR:-18±3dB / -15dB
(
SLR/RLR : Mid-Value Settin
g)
MS
DCS
Headset
GSM
DCS
-70dBm below

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. Performance
2.8 Charging
· Normal mode: Complete Voltage: 4.2V
Charging Current: 500mA below
·Awaitmode: In case of During a Call, should be kept 3.9V
(GSM: It should be kept 3.9V in all power level
WCDMA: It will not be kept 3.9V in some power level)
· Extend await mode: At Charging prohibited temperature(0C under or 45C over)
(GSM: It should be kept 3.7V in all power level
WCDMA: It will not be kept 3.7V in some power level)