LG GM310 User manual

Service Manual Model : GM310
Internal Use Only
Service Manual
GM310
Date: April, 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 Supporting Standard....................................................9
2.2 Main Parts : Solution..................................................10
2.3 H/W features.............................................................10
2.4 HW Spec. ................................................................12
3. BB CIRCUIT TECHNICAL BRIEF..................... 15
3.1 Functional Block Diagram ..........................................15
3.2 Baseband Processor Introduction ..............................15
3.3 Power management IC...............................................27
3.4 Power ON/OFF ..........................................................34
3.5 SIM Interface.............................................................35
3.6 MICRO SD connector.................................................36
3.7 Memory ....................................................................37
3.8 LCD Display ..............................................................38
3.9 Keypad switching & scanning.....................................39
3.10 keypad back-light illumination ..................................40
3.12 Battery voltage monitor............................................42
3.13 Audio......................................................................43
3.14 BLUETOOTH............................................................46
3.15 18PIN Interface connector........................................49
4. RF Circuit Technical Brief ............................50
4.1 General Description ...................................................50
4.2 GSM Part..................................................................53
4.3 WCDMA Part.............................................................57
4.4 GSM Power Amplifier Module.....................................59
4.5 WCDMA Band1+8 Power Amplifier Module.................60
4.6 WCDMA Band1+8 Low Noise Amplifier.......................61
4.7 WCDMA Band1 Duplexer ...........................................62
4.8 WCDMA Band5 Duplexer ...........................................63
5. Trouble shooting ..........................................64
5.1 Trouble shooting test setup ........................................64
5.2 Power on trouble .......................................................65
5.3 Charging Trouble .......................................................68
5.4 USB Trouble ..............................................................71
5.5 SIM Detect Trouble ....................................................73
5.6 Number Key Sense Trouble ........................................75
5.7 Multi Key sense Trouble .............................................77
5.8 Keypad backlight Trouble ...........................................79
5.9 Micro SD Trouble.......................................................81
5.10 Audio Trouble ..........................................................83
5.11 Microphone Trouble .................................................87
5.12 Camera Trouble.......................................................91
5.13 Main LCD Trouble ....................................................93
5.14 Bluetooth Trouble.....................................................95
5.15 RF Component ........................................................98
5.16 RF SIGNAL PATH .....................................................99
5.17 Trouble Shoothing of GSM Part...............................100
5.18 Trouble Shooting of WCDMA Part............................108
6. DOWNLOAD & S/W UPGRADE.....................115
7. BLOCK DIAGRAM........................................126
8. CIRCUIT DIAGRAM...................................... 127
9. BGA Pin Map .............................................. 137
10. PCB LAYOUT .............................................143
11. RF Calibration .......................................... 155
11.1. Test Equipment Setup ...........................................155
11.2. Calibration Step....................................................155
12. EXPLODED VIEW & REPLACEMENT
PART LIST ................................................161
12.1 EXPLODED VIEW ...................................................161
12.2 Replacement Parts ................................................163
12.3 Accessory .............................................................191

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

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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
1. INTRODUCTION
1.1.Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of the GM310.
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 are may 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 GM310 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.

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1. INTRODUCTION
GM310f service manual
D. Maintenance Limitations
Maintenance limitations on the GM310 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
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
An GM310 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.

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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
GM310f service manual
1.3. ABBREVIATION
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

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1. INTRODUCTION
GM310f service manual
◆
PGA Programmable Gain Amplifier
◆
PLL Phase Locked Loop
◆
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 Time Division Multiple Access
◆
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
GM310f service manual
2.1 Supporting Standard
Item Feature Comment
Supporting
Standard
WCDMA 2100/850
GSM850/EGSM900/DCS1800/PCS1900
with seamless handover
Phase 2+(include AMR)
SIM Toolkit : Class 1, 2, 3, A-E
Frequency Range GSM850 TX : 824 - 849 MHz
GSM850 RX :869 - 894 MHz
EGSM900 TX : 880 - 915 MHz
EGSM900 RX : 925 - 960 MHz
DCS1800 TX : 1710 - 1785 MHz
DCS1800 RX : 1805 - 1880 MHz
PCS1900 TX : 1850 - 1910 MHz
PCS1900 RX : 1930 - 1990 MHz
WCDMA2100 TX : 1920 - 1980 MHz
WCDMA2100 RX : 2110 - 2170 MHz
WCDMA850 TX : 824 - 849 MHz
WCDMA850 RX : 869 - 894 MHz
Application
Standard
WAP 2.0, JAVA 2.0
2.2 Main Parts : Solution
Item Part name Comment
Digital Baseband PMB8868 (Infineon)
Analog Baseband PMB8868 (Infineon)
RF chip PMB6952 (Infineon)

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2. PERFORMANCE
GM310f service manual
2.3 H/W features
Item Feature Comment
Form Factor Slide type
1)Capacity
Standard : Li-Ion, 900mAh
Battery
2) Packaging Type : Soft Pack
Item Feature Comment
Size 103 x 51.8 x 13.75
Weight 98 g With Battery
GSM 300 hours @paging period 5Stand-by
time WCDMA 300hours @DRX=7
GSM 240min @ Power Level 7Talk
time WCDMA 180min @Tx=12dBm
Charging time 3 hours @power OFF/900mAh
Rx sensitivity GSM850 : -105 dBm
EGSM900 : -105 dBm
DCS1800 : -105 dBm
PCS1900 : -105 dBm
WCDMA2100 : -106.7 dBm
WCDMA900 : -103.7 dBm
GSM/
GPRS
GSM850 : 33 dBm
EGSM900 : 33 dBm
DCS1800 : 30 dBm
PCS1900 : 30 dBm
Class4 (GSM850)
Class4 (EGSM900)
Class1(DCS)
Class1(PCS)
TX output
power
EDGE GSM850 : 27 dBm
EGSM900 : 27 dBm
DCS1800 : 26 dBm
PCS1900 : 26 dBm
E2 (EGSM850)
E2 (EGSM900)
E2 (DCS)
E2 (PCS)
GPRS compatibility GPRS Class 12
EDGE compatibility EDGE Class 12
Display 2.2” 240x320 (QVGA) TFT
Built-in Camera 3 Mega pixel
ANT Main : Internal Fixed Type
System connector 18 Pin

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Copyright © 2009 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
2. PERFORMANCE
GM310f service manual
Ear Phone Jack 3.5pi, 4 Pole, Stereo
PC synchronization Yes
Speech coding FR, EFR, HR, AMR
Vibrator Built in Vibrator
Blue Tooth V1.2, A2DP
Voice Recording Yes
Speaker Phone
mode Support
Yes
Travel Adapter Yes
CDROM No
Stereo Headset Yes
Data Cable No
T-Flash Yes

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
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2. PERFORMANCE
GM310f service manual
2.4 HW Spec.
GM310f service manual
2.4.1. GSM Transmitter/Receiver spec.
GM310f service manual
Item Specification
Frequency
GSM850 TX : 824 - 849 MHz RX : 869 - 894 MHz
EGSM900 TX : 880 - 915 MHz RX : 925 - 960 MHz
DCS1800 TX : 1710 - 1785 MHz RX : 1805 - 1880 MHz
PCS1900 TX : 1850 - 1910 MHz RX : 1930 - 1990 MHz
Phase Error Rms : 5°
Peak : 20 °
Frequency Error GSM : 0.1 ppm
DCS/PCS : 0.1 ppm
EMC(Radiated Spurious Emission
Disturbance) GSM/DCS : < -28dBm
Transmitter Output power and
Burst Timing
GSM : 5dBm – 33dBm ± 3dB
DCS/PCS : 0dBm – 30dBm ± 3dB
Burst Timing <3.69us
Spectrum due to modulation out
to less than 1800kHz offset
200kHz : -36dBm
600kHz : -51dBm/-56dBm
Spectrum due to modulation out
to larger than 1800kHz offset to
the edge of the transmit band
GSM : 1800-3000kHz :< -63dBc(-46dBm)
3000kHz-6000kHz : <-65dBc(-46dBm)
6000kHz < : < -71dBc(-46dBm)
DCS : 1800-3000kHz :< -65dBc(-51dBm)
6000kHz < : < -73dBc(-51dBm)
Spectrum due to switching
transient
400kHz : -19dBm/-22dBm(5/0), -23dBm
600kHz : -21dBm/-24dBm(5/0), -26dBm
Reference Sensitivity – TCH/FS Class II(RBER) : -105dBm(2.439%)
Usable receiver input level range 0.012(-15 - -40dBm)
Intermodulation rejection –
Speech channels ± 800kHz, ± 1600kHz : -98dBm/-96dBm (2.439%)
AM Suppression
-GSM : -31dBm - DCS : -
29dBm
-98dBm/-96dBm (2.439%)
Timing Advance ± 0.5T

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2. PERFORMANCE
GM310f service manual
2.4.2. WCDMA Transmitter spec.
Item Specification
Transmit Frequency 1920 MHz ~ 1980 MHz/ 880 MHz ~ 915 MHz
Maximum Output Power +24 dBm / 3.84 MHz, +1 / -3 dB
Frequency Error within ±0.1 PPM
Open Loop Power Control Normal Conditions : within ±9 dB,
Extreme Conditions : within ±12 dB
Minimum Transmit Power < -50 dBm /3.84 MHz
Occupied Bandwidth < 5 MHz at 3.84 Mcps (99% of power)
Adjacent Channel Leakage
Power Ratio (ACLR)
> 33 dB @ ±5 MHz,
> 43 dB @ ±10 MHz
Spurious Emissions
|f-fc| > 12.5 MHz
< -36 dBm / 1 kHz RW @ 9 kHz ≤f<150kHz
< -36 dBm / 10 kHz RW @ 150 KHz ≤f < 30 MHz
< -36 dBm / 100 kHz RW @ 30 MHz ≤f<1GHz
< -30 dBm / 1 MHz RW @ 1 GHz ≤f < 12.75 GHz
< -41 dBm / 300 kHz RW @ 1893.5 MHz < f < 1919.6 MHz
< -67 dBm / 100 kHz RW @ 925 MHz ≤f ≤935 MHz
< -79 dBm / 100 kHz RW @ 935 MHz < f ≤960GHz
< -71 dBm / 100 kHz RW @ 1805 MHz ≤f ≤1880 MHz
Transmit Intermodulation < -31 dBc @ 5 MHz & < -41 dBc @ 10 MHz
when Interference CW Signal Level = -40 dBc
Error Vector Magnitude < 17.5 %, when Pout ≥-20 dBm
Peak Code Domain Error < -15 dB at Pout t-20 dBm

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2. PERFORMANCE
GM310f service manual
2.4.3. WCDMA Receiver spec.
Item Specification
Receive Frequency 2110 ~ 2170 MHz / 925 ~ 960 MHz
Reference Sensitivity Level BER < 0.001 when Îor = -106.7 dBm / 3.84 MHz(WCDMA2100)
BER < 0.001 when Îor = -103.7 dBm / 3.84 MHz(WCDMA900)
Maximum Input Level BER < 0.001 when Îor = -25 dBm / 3.84 MHz
A
djacent Channel Selectivity
(ACS)
ACS > 33 dB where BER < 0.001 when Îor = -92.7 dBm / 3.84
MHz & Ioac = –52 dBm / 3.84 MHz @ ±5 MHz(WCDMA2100)
ACS > 33 dB where BER < 0.001 when Îor = -89.7 dBm / 3.84
MHz & Ioac = –52 dBm / 3.84 MHz @ ±5 MHz(WCDMA900)
Blocking Characteristic BER < 0.001 when Îor = -103.7 dBm / 3.84 MHz(WCDMA2100)
when Îor = -100.7 dBm/ 3.84 MHz(WCDMA900)
& Iblocking = -56 dBm / 3.84 MHz @ Fuw(offset) = ±10 MHz
or Iblocking = -44 dBm / 3.84 MHz @ Fuw(offset) = ±15 MHz
Spurious Response BER < 0.001 when Îor = -103.7 dBm (WCDMA2100)
when Îor = -100.7 dBm (WCDMA900)
& 3.84 MHz & Iblocking = -44 dBm
Intermodulation BER < 0.001 when Îor= -103.7 dBm / 3.84 MHz(WCDMA2100)
when Îor= -100.7 dBm / 3.84 MHz(WCDMA900)
& Iouw1 = -46 dBm @ Fuw1(offset) = ±10 MHz
& Iouw2 = -46 dBm / 3.84 MHz @ Fuw2(offset) = ±20 MHz
Spurious Emissions < -57 dBm / 100 kHz BW @ 9 kHz ≤f < 1 GHz
< -47 dBm / 1 MHz BW @ 1 GHz ≤f ≤12.75 GHz
Inner Loop Power Control In
Uplink
Adjust output(TPC command)
cmd 1dB 2dB 3dB
+1 +0.5/1.5 +1/3 +1.5/4
0 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5
-1 -0.5/-1.5 -1/-3 -1.5/-4
group(10equal command group)
+1 +8/+12 +16/+24

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Copyright © 2009 LG Electronics. Inc. All right reserved.
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3. BB Circuit Technical brief
3. BB Circuit Technical brief
GM310f service manual
3.1 Functional Block Diagram
[Figure 3.1] Functional Block Diagram
3.2 Baseband Processor Introduction
[Figure 3.2] Top level block diagram of the MPEH(PMB8868)
BaseBand Processor
PMB8868
18Pin-MMI
3.5
Φ
BT / FM
PMIC
PMB6821
Mot
Charging
BATTER
Y
U
TA
Micro
S
Memory
1Gb Nand
Ba
MP3 Chip
TCC8121
USB
Audio
RF
EDGE
FEM
Duplex
UMTS
Transceiver
PMB6952
UMTS
Duplex
UMTS
Switc
Fu
ll
F
N
BaseBand Processor
PMB8868
18Pin-MMI
Connector
18Pin-MMI
Connector
RCV/SPK
3.5Φ
Ear-phone
Filter
BT / FM Radio
RBCA-B561A
32K
PMIC
PMB6821
Motor
Charging IC
ISL9221
BATTERY
900mAh
USIM
USIM
Hall IC
Hall IC
Motor IC
Motor IC
TA
TA
Micro SD
Micro SD
Switch
Switch
Charge
Pump
Charge
Pump
Memory
1Gb Nand
512Mb SDRam
Backup
Battery QVGA LCD(240 x 320)
MP3 Chip
TCC8121
USB
USB
Audio Amp
LM49150
LDO
LDO
Switch
3M Camera
Mic
Full speed USB
High speed USB
Main Keypad
Sub Keypad
Touch IC
Touch IC
FM Recording
Navi Key
RF Part
GSM/EDGE 850/900/1800/1900
EDGE
PAM
FEM
Duplex
UMTS
PAM
Transceiver
PMB6952
26M
UMTS 1900 or 2100 UMTS
LNA
Duplex
UMTS 850 or 900
BaseBand Processor
PMB8868
18Pin-MMI
Connector
18Pin-MMI
Connector
RCV/SPKRCV/SPK
3.5Φ
Ear-phone
FilterFilter
BT / FM Radio
RBCA-B561A
32K32K
PMIC
PMB6821
Motor
Charging IC
ISL9221
BATTERY
900mAh
USIM
USIM
Hall IC
Hall IC
Motor IC
Motor IC
TA
TA
Micro SD
Micro SD
Switch
Switch
Charge
Pump
Charge
Pump
Memory
1Gb Nand
512Mb SDRam
Backup
Battery QVGA LCD(240 x 320)QVGA LCD(240 x 320)
MP3 Chip
TCC8121
USB
USB
Audio Amp
LM49150
LDO
LDO
Switch
3M Camera3M Camera
Mic
Full speed USB
High speed USB
Main KeypadMain Keypad
Sub Keypad
Touch IC
Touch IC
FM Recording
Navi Key
RF Part
GSM/EDGE 850/900/1800/1900
EDGE
PAM
FEM
Duplex
UMTS
PAM
Transceiver
PMB6952
26M
UMTS 1900 or 2100 UMTS
LNA
Duplex
UMTS 850 or 900
RF Part
GSM/EDGE 850/900/1800/1900
EDGE
PAM
FEM
Duplex
UMTS
PAM
Transceiver
PMB6952
26M
UMTS 1900 or 2100 UMTS
LNA
Duplex
UMTS 850 or 900

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3. BB Circuit Technical brief
GM310f service manual
3.2.1 General description
S-GOLD3H-LC is a HSDPA/WCDMA/EDGE/GPRS/GSM system in package solution consisting of a
mixed signal baseband IC with a 3G coprocessor IC.
l Baseband IC containing all analog and digital functionality of a cellular radio. Additionally S-
GOLD3TM Provides multimedia extensions such as camera, software MIDI, MP3 sound. It is designed
as a single chip solution, integrating the digital and mixed signal portions of the base band in 0.09um,
1.2V technology.
The chip will support the FR, EFR, HR and AMR-NB vocoding.
S-GOLD3TM support multi-slot operation modes HSCSD (up to class 10), GPRS for high speed data
application (up to class 12), EGPRS (up to class 12) and DTM(class11) without additional external
hardware.
3.2.2. Block Description
zProcessing core
ARM926EJ-S 32 bit processor core for controller functions. The ARM926EJ-S includes an MMU,
and the Jazelle Java extension for Java acceleration.
- TEAKLite DSP core
zARM-Memory
- 32k Byte Boot ROM on the AHB
- 128k Byte SRAM on the AHB, flexibly usable as program or data RAM
- 32k Byte Instruction Cache
- 32k Byte Data Cache
- 8k Byte Instruction Tightly coupled Memory(I-TCM)
- 8k Byte Data tightly coupled memory (D-TCM)
zDSP-Memory
- 120k x 16bit Program ROM
- 8k x 16bit Program RAM
- 72k x 16bit Data ROM
- 48k x 16bit Data XRAM
-5k x 16bit Data YRAM
- Incremental Redundancy(IR) Memory of 35904 words of 16bit

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3. BB Circuit Technical brief
GM310f service manual
zShared Memory Block
1.5K x 32bit Shared RAM(dual ported) between controller system and TEAKLite.
zController Bus system
The processor cores and their peripherals are connected by powerful buses.
-Multi-layer AHB for connecting the ARM and the other master capable building blocks with the
internal and external memories and with the peripheral buses.
-An FPI-Bus for connecting GSM peripherals, called hereafter FPI3 bus.
-A controller FPI bus for connecting the low performance controller peripherals such as keypad,,
Called hereafter fPI2 bus.
-FPI2 and FPI3 are connected asynchronously to the AHB buses.
zClock system
The clock system allows widely independent selection of frequencies for the essential parts of the S-
GOLD3H-LC. Thus power consumption and performance can be optimized for each application.
zFunctional Hardware block
- CPU and DSP Timers
- MOVE coprocessor performing motion estimation for video encoding algorithms
(H.263, MPEG-4)
- Programmable PLL with additional phase shifters for system clock generation
- GSM Timer Module that off-loads the CPU from radio channel timing
- GMSK / 8-PSK Modulator according to GSM-standard 05.04 (5/2000)
- GMSK Modulator: gauss-filter with B*T=0.3
- EDGE Modulator: 8PSK-modulation with linearized GMSK-Pulse-Filter
- Hardware accelerators for equalizer and channel decoding.
- Incremental Redundancy memory for EDGE class 12 support
- A5/1, A5/2, A5/3 Cipher unit
- GEA1, GEA2, GEA3 Cipher Unit to support GPRS data transmission
- Advanced static and dynamic power management features including TDMA-Frame
synchronous low power mode and enhanced CPU modes(idle and sleep modes)

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GM310f service manual
3.2.3 RF Interface(T_OUT)
S-Gold3H-LC uses this interface to control RF IC and Peripherals.
[Table 3.2.3-1] RF Interface Spec.
T_OUT
Resource Interconnection Description
T_OUT0 TXON_PA PAM Power on
T_OUT1 -
T_OUT2 ANT_SEL1 FEM control
T_OUT3
T_OUT4
T_OUT5
T_OUT6 PA_MODE PAM Mode select
T_OUT7 ANT_SEL2 FEM control
T_OUT8 ANT_SEL3 FEM control
T_OUT9
T_OUT10

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GM310f service manual
3.2.4 ADC channel
ADC block is composed of 11 external ADC channel. This block operates charging process and other
related process by reading battery voltage and other analog values.
[Table 3.2.4-1] S-Gold3 ADC channel usage
ADC channel
Resource Interconnection Description
M0 BAT_ID Battery temperature measure
M1 RF_TEMP RF block temperature measure
kM2 N.C
M3 JACK_TYPE Accessory type detect
M4 N.C
M5 N.C
M6 N.C
M7 H/W VERSION H/W version detect
M8 VBAT Battery supply voltage measure
M9 N.C
M10 N.C

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GM310f service manual
3.2.5 GPIO map
Over a hundred allowable resources, GM310 is using as follows except dedicated to SIM and Memory.
GM310 GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level,
is shown in below table
[Table 3.2.5-1] S-Gold3H-LC GPIO pin Map
GM310f service manual
Port Function Net Name Description
KEY MATRIX
KP_IN0 KEYIN0
KP_IN1 KEYIN1
KP_IN2 KEYIN2
KP_IN3 KEYIN3
KP_IN4 KEYIN4
KP_IN5 KEYIN05
KP_IN6 KEYOUT5
KP_OUT0 KEYOUT0
KP_OUT1 KEYOUT1
KP_OUT2 KEYOUT2
KP_OUT3 KEYOUT3
USIF1
USIF1_RXD_MRST UART_RX UART Data
USIF1_TXD_MTSR UART_TX UART Data
USIF1_RTS_N USB_ DAT_VP USB Data
USIF1_CTS_N USB_SE0_VM USB Data
USIF2
USIF2 _RXD_MRST TCC_PWRON Multimedia chip power on
USIF2 _TXD_MTSR TCC_RESET Multimedia chip reset
USIF2_RTS_N BT_UART_RTS Bluetooth RTS
USIF2_CTS_N BT_UART_CTS Bluetooth CTS
USIF3
USIF3 _RXD_MRST BT_UART_RX Bluetooth UART Data
USIF3 _TXD_MTSR BT_UART_TX Bluetooth UART Data
GPIO_21 USB_SEL USB 1.1, 2.0 select
CLK
CLK32K CLK32k For FM Radio, BT CLK32K
GPIO_22 Not used

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. BB Circuit Technical brief
GM310f service manual
CAMERA I/F
CIF_D0 CAM_D0 Camera DATA[0]
CIF_D1 CAM_D1 Camera DATA[1]
CIF_D2 CAM_D2 Camera DATA[2]
CIF_D3 CAM_D3 Camera DATA[3]
CIF_D4 CAM_D4 Camera DATA[4]
CIF_D5 CAM_D5 Camera DATA[5]
CIF_D6 CAM_D6 Camera DATA[6]
CIF_D7 CAM_D7 Camera DATA[7]
CIF_PCLK CAM_PCLK Camera pixel clock
CIF_HSYNC CAM_HSYNC Camera H sync
CIF_VSYNC CAM_VSYNC Camera V sync
CLKOUT2 CAM_MCLK Camera main clock
CIF_PD CAM_PWR_EN Camera power down(active high)
CIF_RESET CAM_RESET Camera reset
LCD I/F
DIF_D0 LCD_D0 LCD data[0]
DIF_D1 LCD_D1 LCD data[1]
DIF_D2 LCD_D2 LCD data[2]
DIF_D3 LCD_D3 LCD data[3]
DIF_D4 LCD_D4 LCD data[4]
DIF_D5 LCD_D5 LCD data[5]
DIF_D6 LCD_D6 LCD data[6]
DIF_D7 LCD_D7 LCD data[7]
DIF_D8 DIF_ID LCD data[8]
DIF_CS1 _LCD_CS1 LCD chip select
EINT4 EXT_SPK_DETECT External speaker detect
DIF_CD LCD_CD Command Data switch
DIF_WR _LCD_WR LCD Write
LCD_RD LCD_RD LCD Read
DIF_HD HOOK_DETECT Headset hook detect
DIF_VD LCD_VSYNC LCD Vsync
DIF_RESET1 _LCD_RESET LCD Reset
DIF_RESET2 A_RESET 3G reset
I2C
I2C1_SCL SCL_PMIC For PMIC
I2C1_SDA SDA_PMIC For PMIC
PM_INT (EINT) PM_INT For PMIC