Page 1 Internal Use Only Service Manual GD310 Date: November, 2009 / Issue 1.0...
Page 2 This manual provides the information necessary to install, program, operate and maintain the GD310. Copyright © 2009 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
Page 4: Table Of Contents
13.2 Replacement Parts ..........149 4.1 Main PCB component placement ........65 13.3 Accessory ............. 242 4.2 F_LCD component placement ........66 Copyright © 2009 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
Page 6: Introduction
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. Copyright © 2009 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only...
Page 7: Only For Training And Service Purposes
When returning system boards or parts such as EEPROM to the factory, use the protective package as described. LGE Internal Use Only - 8 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 8: Abbreviation
Real Time Clock ◆ SAW Surface Acoustic Wave ◆ SIM Subscriber Identity Module ◆ SLR Sending Loudness Rating Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
Page 9: Only For Training And Service Purposes
Voltage Controlled Oscillator ◆ DCXO Digitally Controled Crystal Oscillator ◆ WAP Wireless Application Protocol ◆ 8PSK 8 Phase Shift Keying LGE Internal Use Only - 10 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10: Performance
HR/EFR/FR/AMR Data and Fax Vibrator Buzzer Voice Recoding C-Mic Receiver Travel Adapter Options Bluetooth hands-free kit, Data Kit Copyright © 2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
Page 11: Technical Speciﬁ Cation
20 dBm ±3dB 4 dBm ±4dB 18 dBm ±3dB 2 dBm ±5dB 16 dBm ±3dB 0 dBm ±5dB LGE Internal Use Only - 12 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 12: Only For Training And Service Purposes
1,200 1,800 Output RF Spectrum (due to switching transient) DCS1800/PCS1900 Offset from Carrier (kHz) Max. (dBm) 1,200 1,800 Copyright © 2009 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
Page 13: Only For Training And Service Purposes
> 6 dB dB to ARL (dB) Level Ratio (dB) 17.5 22.5 30.7 Distortion 33.3 33.7 31.7 25.5 LGE Internal Use Only - 14 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 14: Only For Training And Service Purposes
Battery full charge voltage = 4.2 V Capacity: 900mAh Switching-mode charger Travel Charger Input: 100 240 V, 50/60Hz Out put: 5.0, 0.5A Copyright © 2009 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
Page 15: Only For Training And Service Purposes
Output RF Spectrum 6,000 (due to modulation) DCS1800, PCS1900 Offset from carrier(kHz) Max. dBc +0.5 600~<1,200 1,200~<1,800 1,800~<3,000 3,000~<6,000 6,000 LGE Internal Use Only - 16 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 16: Only For Training And Service Purposes
1,200 Output RF Spectrum 1,800 (due to switching transient) DCS1800, PCS1900 Offset from carrier(kHz) Max. dBm 1,200 1,800 Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
Page 17: Technical Brief
VUMTS(2.85V) VRF3(2.70V) 2V11_RTC HEADSET MIC VVIB(2.8V) VUSB(3.1V) VLED (2.9V) MIC2(P/N) B/UP BAT. Figure 1. GD310 Functional block diagram LGE Internal Use Only - 18 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 18: Baseband Processor (Bbp) Introduction
3. Technical Brief 3.2. Baseband Processor (BBP) Introduction Figure 2. Top level block diagram of the S-GOLD3 (PMB8877) Copyright © 2009 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...
Page 19: Only For Training And Service Purposes
The clock system allows widely independent selection of frequencies for the essential parts of the S-GOLD3. Thus power consumption and performance can be optimized for each application. LGE Internal Use Only - 20 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 20: Only For Training And Service Purposes
- An ITU-R BT.656 compatible Camera interface. - Programmable clock output for a camera - An multimedia/Secure Digital Card Interface (MMCI/SD:SDIO capable) Copyright © 2009 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
Page 21: Only For Training And Service Purposes
TX RF band select T_OUT3 FEM control T_OUT4 DBB_INT DBB control T_OUT5 LED_CNT LED control T_OUT6 PA_MODE PAM Mode select LGE Internal Use Only - 22 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 22: Only For Training And Service Purposes
3. Technical Brief 3.2.5. USIF Interface GD310 have three USIF Drivers as follow : - USIF1 : Hardware Flow Control / SW upgrade / Calibration - USIF2 : Not used Rx, Tx and CTS, RTS use BT Interface - USIF3 : BT Interface Table 3.
Page 23: Only For Training And Service Purposes
ADC channel Resource Interconnection Description BAT_ID Battery temperature measure RF_TEMP RF block temperature measure VSUPPLY Battery supply voltage measure LGE Internal Use Only - 24 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 24: Only For Training And Service Purposes
3. Technical Brief 3.2.7. GPIO map Over a hundred allowable resources, GD310 is using as follows except dedicated to SIM and Memory. GD310 GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level, is shown in below table Table 5. S-Gold3 GPIO pin Map...
Page 25: Only For Training And Service Purposes
IRDA_TX USB_OEN IRDA_RX FLIP For folder on/off detection Audio I/F EPN11 EAR_N For Headset EPP11 EAR_P For Headset LGE Internal Use Only - 26 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26: Only For Training And Service Purposes
MEM _AD[3] D(3) MEM _AD[4] D(4) MEM _AD[5] D(5) MEM _AD[6] D(6) MEM _AD[7] D(7) MEM _AD[8] D(8) Copyright © 2009 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...
Page 27: Only For Training And Service Purposes
MEM _CSA3_n A(30) MEM _CS0_n _NAND_CS INTEL NOR (64MB) MEM _CS1_n _RAM_CS INTEL SDRAM (64MB) MEM _CS2_n Not used LGE Internal Use Only - 28 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 28: Only For Training And Service Purposes
F32K to 32k crystal OSC32K to 32k crystal RESET_n _RESET RTC_OUT RTC_OUT SPCU_RC_OUT0 VCXO_EN SPCU_RQ_IN1 _BT_RESET SPCU_RQ_IN2 RESOURCE_CTRL Copyright © 2009 LG Electronics. Inc. All right reserved. - 29 - LGE Internal Use Only Only for training and service purposes...
Page 29: Power Management Ic
– SDBB can also act as main supply voltage for E-GOLD+ or S-GOLDlite baseband devices. – For S-GOLD two linear regulators for DSP and Core are cascaded after the SDBB. LGE Internal Use Only - 30 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30 – Overtemperature Warning – Support of S-GOLD standby power-down concept – Support of S-GOLD Power-Down Pad Tristate Function Copyright © 2009 LG Electronics. Inc. All right reserved. - 31 - LGE Internal Use Only Only for training and service purposes...
Page 31: Only For Training And Service Purposes
30mA S-GOLD3 PLL VRTC 2V11_RTC 2.11V Real Time Clock VAFC VAFC 2.65V Not used VVIB 2V8_VLCD 2.8V 140mA LGE Internal Use Only - 32 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 32: Only For Training And Service Purposes
C308 R319 R318 ECZH0001215 1.2k (10V,K,X5R, 1005) ECZH0003503 (25V,K,X5R, 1608) Figure 4. SM-Power circuit diagram with charging part Copyright © 2009 LG Electronics. Inc. All right reserved. - 33 - LGE Internal Use Only Only for training and service purposes...
Page 33: Only For Training And Service Purposes
-5℃ ~ 50℃ : standard charging (up to 4.2 V) 50℃~ : low charging voltage operation (3.6V ~ 3.9V) LGE Internal Use Only - 34 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34: Power On/Off
VIHdet (Vbat-0.8 ~ Vbat-0.3) the above-mentioned bit won’t be set. To support Remote power on function for factory mass production, applied an analog switch as following figure. As monitoring the RPWRON and Key matrix KP_OUT(2) & KP_IN (0), GD310 system recognize whether remote power on or End-key pushed...
Page 35: Sim & Usd Interface
3. Technical Brief 3.5. SIM & uSD interface GD310 supports 1.8V & 2.9V plug in SIM, SIM interface scheme is shown in (Figure 8). SIM_IO, SIM_CLK, SIM_RST ports are used to communicate with BBP(S-Gold3) and the SIM power supply enabled by PMIC.
Page 36: Only For Training And Service Purposes
Data bit [3] Command response Power Power supply Clock Ground Power ground DAT0 Data bit [0] DAT1 Data bit [1] Copyright © 2009 LG Electronics. Inc. All right reserved. - 37 - LGE Internal Use Only Only for training and service purposes...
Page 37: Memory
3. Technical Brief 3.6. Memory 1Gbit Flash & 512Mbit DDRAM employed on GD310 with 8 & 16 bit parallel data bus thru ADD(0) ~ ADD(26). The 1Gbit Nand Flash memory with DDRAM stacked device family offers multiple high-performance solutions. ADD[16:28]...
Page 38: Lcd Display
- Main LCD: 2.4” 240x320 QVGA, 262K color TFT - Backlight : 5 piece of white LED Table 8. LCD FPC Interface Spec. Copyright © 2009 LG Electronics. Inc. All right reserved. - 39 - LGE Internal Use Only Only for training and service purposes...
Page 39: Keypad Switching & Scanning
DOWN KB10 KB11 CONF SW105 KEY_ROW4 KEY_COL0 KEY_COL1 KEY_COL2 KEY_COL3 KEY_COL4 Figure 11. Key pad part key matrix LGE Internal Use Only - 40 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40: Keypad Back-Light Illumination
SM-POWER Flash LED drivers is shown in below Figure11. VBAT LD100 LEWWS44-E R101 KEY_BACKLIGHT 47ohms LD101 R100 47ohms LEWWS44-E Figure 12. Keypad Back-light LEDs Copyright © 2009 LG Electronics. Inc. All right reserved. - 41 - LGE Internal Use Only Only for training and service purposes...
Page 41: Lcd Back-Light Illumination
Register 1 for D1 to D5 current level settings. Address 2 addresses Register 2 for D6 current level settings. Figure 14. I2C Serial data port control method LGE Internal Use Only - 42 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42: 7-Segment Led Module
1V85_LDO CN100 R110 0ohms LED_INT _LED_RESET LED_CNT C104 C103 AXT524124 0.1uF 0.1uF Figure 15. 7-segment LED Circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 43 - LGE Internal Use Only Only for training and service purposes...
Page 43: Jtag & Etm Interface Connector
Figure 16. JTAG & ETM(Embedded Trace Module) interface connector In case of GD310 mass production, the JTAG & ETM interface connector will not be mount on board. That is only for developing and software debugging purpose.( It will not be mounted on mass production...
Page 44: Audio
3. Technical Brief 3.13. Audio GD310 Audio signal flow diagram as following diagram. Figure 17. Audio signal flow diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 45 - LGE Internal Use Only Only for training and service purposes...
Page 45: Only For Training And Service Purposes
SPK_RCV_N BIAS OUT- C200 RXIN+ C259 C211 RXIN- R211 EAR_P R218 EAR_N R235 Figure 18. Audio amplifier PMIC LGE Internal Use Only - 46 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46: Only For Training And Service Purposes
3. Technical Brief 3.13.2. Microphone circuit MIC100 VMIC_P VMIC_N MAIN_MIC_N MAIN_MIC_P SUMY0010610 SPM0410LR5H-QB R102 Figure 19. Microphone circuit Copyright © 2009 LG Electronics. Inc. All right reserved. - 47 - LGE Internal Use Only Only for training and service purposes...
Page 47: Charging Circuit
_CHG_EN BQ25040 C325 C323 C308 R319 R318 ECZH0001215 1.2k (10V,K,X5R, 1005) ECZH0003503 (25V,K,X5R, 1608) Figure 20. Charging circuit LGE Internal Use Only - 48 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48: Fm Radio & Bluetooth
- Packet Boundary Flag (PBF) -WLAN coexistence including 802.15.2 three-wire coexistence support -UART Interface -PCM Interface S Interface C Interface Copyright © 2009 LG Electronics. Inc. All right reserved. - 49 - LGE Internal Use Only Only for training and service purposes...
Page 49: Only For Training And Service Purposes
I2S1_RX GND5 PCM_OUT_I2S_OUT GND6 PCM_IN I2S1_TX PGND1 PGND2 PGND3 PGND4 Figure 21. Bluetooth / FM Radio Circuit Diagram LGE Internal Use Only - 50 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50: Only For Training And Service Purposes
• I2C slave for FM • Two audio PCM interfaces (input and output) • Analogue stereo (output only) Copyright © 2009 LG Electronics. Inc. All right reserved. - 51 - LGE Internal Use Only Only for training and service purposes...
Page 51: Only For Training And Service Purposes
3. Technical Brief Figure 22. Bluetooth / FM Radio Block Diagram LGE Internal Use Only - 52 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52: 5Pin Multi Media Interface Connector
The VB connection is protected against faults up to 28 volts. Table 10. MUIC pin description Copyright © 2009 LG Electronics. Inc. All right reserved. - 53 - LGE Internal Use Only...
Page 53: Only For Training And Service Purposes
X5R or ISET UID LDO 0.4V VCCINT IOVcc I2C_Clock I2C_Data MicroController Interrupt Figure 24. MUIC Typical Application Circuit LGE Internal Use Only - 54 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54: Only For Training And Service Purposes
L301 C322 R315 MUIC_DM R316 MUIC_DP MUIC_ID L303 C324 100n ENRY0007801 HSMU-5SB-24DPC Figure 25. MMI 5Pin Connector circuit Copyright © 2009 LG Electronics. Inc. All right reserved. - 55 - LGE Internal Use Only Only for training and service purposes...
Page 55: General Description
Figure 27. RF transceiver PMB6272 SMARTi-PM functional block diagram LGE Internal Use Only - 56 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56: Only For Training And Service Purposes
R404 HOT1 GND1 26MHZ C410 C407 220N 100n BT_CLK RF_CLK RF_DA Figure 28. RF transceiver PMB6272 SMARTi-PM schematic Copyright © 2009 LG Electronics. Inc. All right reserved. - 57 - LGE Internal Use Only Only for training and service purposes...
Page 57: Receiver Part
A programmable gain correction can be applied to correct for front end- and receiver gain tolerances. LGE Internal Use Only - 58 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58: Transmitter Part
In 8PSK mode, the ramping functionality is assured by an on-chip ramping generator, whereas output power is controlled by the PGA’s as described above. Copyright © 2009 LG Electronics. Inc. All right reserved. - 59 -...
Page 59: Rf Synthesizer
(XO_TUNE) via the three wire bus (“3Wbus”) FSYS1 GND1 X400 NX3225SA GND2 HOT2 HOT1 GND1 26MHZ Figure 31. DCXO Schematic LGE Internal Use Only - 60 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60: Front End Module Control
C412 100P 100P SW401 SW400 FL400 C420 LMSP43QA-538 100P RF-800 UFL-R-SMT10 L406 C437 100NH Figure 32. FEM schematic Copyright © 2009 LG Electronics. Inc. All right reserved. - 61 - LGE Internal Use Only Only for training and service purposes...
Page 61: Power Ampliﬁ Er Module
DAC. The module has Tx enable, band select, mode (EDGE or GSM) inputs. Module construction is a low-profile over-molded land-grid array on laminate. .Table 13. PAM pin description LGE Internal Use Only - 62 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62: Mode Selection
MODE circuitry selects GMSK modulation (logic 0) or EDGE modulation (logic 1). VRAMP controls the output power for GMSK modulation and provides bias optimization for EDGE modulation depending on the state of MODE control. Copyright © 2009 LG Electronics. Inc. All right reserved. - 63 - LGE Internal Use Only...
Page 63: Pam Schematic
TQM7M5005(5x5) L405 100P 100P 100P C431 C445 0.01U 0.01U SMPY0021101 3.9n C423 C435 1.5p Figure 33. PAM schematic LGE Internal Use Only - 64 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64: Pcb Picture
Folder Conn.(LCD & Camera) Key PCB Conn. Power Inductor SIM & uSD Socket PMIC BT Antenna Charging IC (OVP) Mobile Switch Copyright © 2009 LG Electronics. Inc. All right reserved. - 65 - LGE Internal Use Only Only for training and service purposes...
Page 65: F_Lcd Component Placement
Backup Battery Vibrator Vibrator Driver Charge pump Camera Conn. LCD Conn. Folder Conn. LED Matrix LED Control IC LGE Internal Use Only - 66 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66: Trouble Shooting
-Connect mobile switch cable between Communication test set and DUT when you need to make a phone call. -Follow trouble shooting procedure Copyright © 2009 LG Electronics. Inc. All right reserved. - 67 - LGE Internal Use Only Only for training and service purposes...
Page 67: Power On Trouble
R228 KEY_COL2 100k EXTERNAL RESET 2V62_VIO 2V11_RTC R207 100K U202 EXTRSTN SPOWER_INT PM_INT _RESET PMRSTN C248 100n NC7WZ08L8X LGE Internal Use Only - 68 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68 30mA S-GOLD3 PLL VRTC 2V11_RTC 2.11V Real Time Clock VAFC VAFC 2.65V Not used VVIB 2V8_VLCD 2.8V 140mA Copyright © 2009 LG Electronics. Inc. All right reserved. - 69 - LGE Internal Use Only Only for training and service purposes...
Page 69 Check 3 pin of X400 Or Check 14 pin of U400 Replace main PCB X400 U400 14pin of U400 3pin of X400 LGE Internal Use Only - 70 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70: Charging Trouble
RPWRON_EN VSS2 IFULL EN_SET _CHG_EN BQ25040 C325 C323 C308 R318 R319 ECZH0001215 1.2k (10V,K,X5R, 1005) ECZH0003503 (25V,K,X5R, 1608) Copyright © 2009 LG Electronics. Inc. All right reserved. - 71 - LGE Internal Use Only Only for training and service purposes...
Page 71 Voltage goes up to 3.4V Battery thermistor Change the value Battery is about 10K? retest Charge is operating LGE Internal Use Only - 72 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72: Lcd Display Trouble
INOUT_B1 INOUT_A1 04-6293-037-001-829 ICVE10184E150R101FR Check signal flow via EMI filter Check the connection LCD FPCB Connector Charge Pump Copyright © 2009 LG Electronics. Inc. All right reserved. - 73 - LGE Internal Use Only Only for training and service purposes...
Page 73 Check solder and Signal is normal on repair DIF Signal Damaged filter FL300, FL302, FL306 Assemble FL300, FL302, FL306 LGE Internal Use Only - 74 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74: Camera Trouble
5. TROUBLE SHOOTING 5.5 Camera Trouble Check Points -Connectors combination -FPCB status Check the connector combination Copyright © 2009 LG Electronics. Inc. All right reserved. - 75 - LGE Internal Use Only Only for training and service purposes...
Page 75 Camera test with equipped camera module Replace New Replace Camera module Main Working properly? Replace Camera module Assemble LGE Internal Use Only - 76 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76: Receiver & Speaker Trouble
CIF_D7 DIF_CD DIF_VSYNC L110 33nH LCD_ID SPK_RCV_P SPK_RCV_P _DIF_RESET SPK_RCV_N L111 33nH SPK_RCV_N GB042-60P-H10-E3000 C108 0.1uF C106 C107 Copyright © 2009 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only Only for training and service purposes...
Page 77 Pin33,32 of sub board Replace FPCB LCD Connector (CN103) is C103,C102 of Replace FPCB_Folder FPCB_Folder are High? Assemble LGE Internal Use Only - 78 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78: Microphone Trouble
KEY_COL4 GB042-30P-H10-E3000 C309 C311 MIC100 VMIC_P VMIC_N MAIN_MIC_N MAIN_MIC_P SUMY0010610 SPM0410LR5H-QB R102 CN301 C317 C312 C319 C318 MIC100 Copyright © 2009 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only Only for training and service purposes...
Page 79 Repair the 30pin 30pin connector conn. (CN302) (CN302)is good? Replace Check Signal C312, microphone C319 (2.5V) (MIC100) Assemble LGE Internal Use Only - 80 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80: Vibrator Trouble
100Kohms C110 C112 SUY98005LT1G 0.1uF PIN3 Check the driver IC(U101) of sub board(FPCB) PIN1 Check the vibrator soldering Copyright © 2009 LG Electronics. Inc. All right reserved. - 81 - LGE Internal Use Only Only for training and service purposes...
Page 81 Check FPCB_LCD Pin1 of U101(VIB_EN) or replace it is high? Pin3 of U101(VIB) is high? Replace Vibrator Assemble LGE Internal Use Only - 82 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82: Keypad Back Light Trouble
FLIP VMIC_N KEY_BACKLIGHT VMIC_P END_KEY KEY_ROW0 KEY_ROW1 KEY_COL0 KEY_ROW2 KEY_COL1 KEY_ROW3 KEY_COL2 KEY_ROW4 KEY_COL3 KEY_ROW5 KEY_COL4 TP_GND GB042-30S-H10-E3000 Copyright © 2009 LG Electronics. Inc. All right reserved. - 83 - LGE Internal Use Only Only for training and service purposes...
Page 83 Check TP1 is board 2.62V? Replace 44pin 30pin connector conn. (CN303) is good? (CN101) Replace KEY FPCB Assemble CN101 LGE Internal Use Only - 84 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84: Sim & Usd Trouble
Pin 13 / Check 2V9_SIM soldering all pins of socket Pin 11 / Pin 12 / SIM_IO SIM_CLK Copyright © 2009 LG Electronics. Inc. All right reserved. - 85 - LGE Internal Use Only Only for training and service purposes...
Page 85: Sim Card
2.9V SIM only Resolder pin 6 pins are soldered well? Replace Main Board Check Proper SIM Card Assemble LGE Internal Use Only - 86 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 TF socket pins TP 1~4 is 2.9V are well soldered Signal) Replace Main Board Check proper uSD? Assemble Copyright © 2009 LG Electronics. Inc. All right reserved. - 87 - LGE Internal Use Only Only for training and service purposes...
Page 87: 7-Segment Led Trouble
Check U201 Check TP1 is high (2.9V)? Check 19pin of Check TP2 CN100 and Replace waveform FPCB_LCD Assemble LGE Internal Use Only - 88 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88: Trouble Shooting Of Receiver Part
Check point ③ Mobile SW & FEM Check point ④ ③ RX I/Q Signal Re-Download S/W & CAL Copyright © 2009 LG Electronics. Inc. All right reserved. - 89 - LGE Internal Use Only Only for training and service purposes...
Page 89 GND1 X400 NX3225SA GND2 HOT2 HOT1 GND1 26MHZ Figure 3. DCXO Circuit TP1 (C405) Figure 4. DCXO Waveform LGE Internal Use Only - 90 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 GND2 HOT2 HOT1 GND1 26MHZ RF_EN(TP1) BT_CLK RF_CLK RF_DA Figure 7. PLL Control Waveform Figure 6. Transceiver Circuit Copyright © 2009 LG Electronics. Inc. All right reserved. - 91 - LGE Internal Use Only Only for training and service purposes...
Page 91 TP4_R405 (FE2) FL400 TP3_R400 (FE1) Figure 9. Mobile SW & FEM Table 2. FEM RX Control Logic EGSM/GSM850 DCS/PCS LGE Internal Use Only - 92 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 Mobile SW & FEM is OK. Check Antenna. EGSM RX Figure 10 Mobile SW Figure 11 FEM Control Signals Copyright © 2009 LG Electronics. Inc. All right reserved. - 93 - LGE Internal Use Only Only for training and service purposes...
Page 93 TP4(QX) TP4(QX) TP1(I) TP1(I) TP3(Q) TP2(IX) TP3(Q) TP2(IX) U400 Figure 13. RX I/Q Figure 14. RX I/Q Waveform LGE Internal Use Only - 94 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94: Trouble Shooting Of Transmitter Part
Figure 16. Main PCB Check point ⑤ PAM Control ⑥ Check ⑥ FEM & Mobile Re-Download S/W & RF Copyright © 2009 LG Electronics. Inc. All right reserved. - 95 - LGE Internal Use Only Only for training and service purposes...
Page 95 See RX Part “1. Checking DCXO Circuit” 5.13.2. Checking PLL Control Signal See RX Part “2. Checking PLL Control Signal” LGE Internal Use Only - 96 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96 Figure 17. TX I/Q Checking Points TP4(QX) TP1(I) TP3(Q) TP2(IX) U400 Figure 18. TX I/Q Figure 19. TX I/Q Waveform Copyright © 2009 LG Electronics. Inc. All right reserved. - 97 - LGE Internal Use Only Only for training and service purposes...
Page 97 Figure 21. Transceiver Output Table 3. Transceiver Output Operation MODE Transceiver Output GMSK Fixed 8PSK Ramp Burst Control LGE Internal Use Only - 98 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98 LBAND_PAM_IN (MODE: 8PSK) : TP1 EGSM 30CH EGSM 30CH Figure 23. Transceiver Output (8PSK) Figure 22. Transceiver Output (GMSK) Copyright © 2009 LG Electronics. Inc. All right reserved. - 99 - LGE Internal Use Only Only for training and service purposes...
Page 99 Table 4. PAM Mode Operation MODE MODE PA_LEVEL TXON_PA GMSK Ramp Burst Control HIGH 8PSK HIGH Control Amp bias HIGH LGE Internal Use Only - 100 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100 TP3(PA MODE) TP3(PA MODE) : C436 TP1(PA LEVEL) TP1(PA_LEVEL) : C433 TP2(TXON_PA) : C429 TP2(TXON PA) TP3(PA MODE) Copyright © 2009 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only Only for training and service purposes...
Page 101 FL400 FL401 TP3_R400 (FE1) Figure 29 Mobile SW & FEM Table 5. FEM TX Control Logic EGSM/GSM850 DCS/PCS LGE Internal Use Only - 102 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102 Mobile SW & FEM is OK. Check Antenna. EGSM TX TP1(ANT SW1) TP2(ANT SW2) Figure 30 Mobile SW Figure 31 FEM Control Signals Copyright © 2009 LG Electronics. Inc. All right reserved. - 103 - LGE Internal Use Only Only for training and service purposes...
Page 103: Download & S/W Upgrade
• Power Supply or Battery • PC supporting RS-232 with Windows 2000 or newer. Or you can use the USB cable. LGE Internal Use Only - 104 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 104: Download Program User Guide
6. Download & S/W upgrade 6.2 Download program user guide Copyright © 2009 LG Electronics. Inc. All right reserved. - 105 - LGE Internal Use Only Only for training and service purposes...
Page 115: Block Diagram
VMICP/N MAIN MIC 2V11_RTC MIC1(P/N) VRTC(2.0V) VUMTS(2.85V) VRF3(2.70V) 2V11_RTC HEADSET MIC VVIB(2.8V) VUSB(3.1V) VLED (2.9V) MIC2(P/N) B/UP BAT. LGE Internal Use Only - 116 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116: Circuit Diagram
ON_SW ON_SW RPWRON KEY_COL0 TRACESYNC VBAT VBAT KEY_COL1 KEY_COL2 URXD USB_DM KEY_COL3 AXT430124 UTXD USB_DP ENBY0029001 OJ101 OJ100 Copyright © 2009 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only Only for training and service purposes...
Page 117 C206 C207 EXTRSTN SPOWER_INT PM_INT C216 C226 C240 C220 C221 _RESET PMRSTN ENZY0022901 100P 2.2U C248 NC7WZ08L8X 100n LGE Internal Use Only - 118 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118 INOUT_B2 INOUT_A2 CIF_D6 C309 C311 DIF_CD CIF_D7 INOUT_B1 INOUT_A1 INOUT_B1 INOUT_A1 ICVE10184E150R101FR ICVE10184E070R101FR SPK_RCV_P C307 SPK_RCV_N C316 C321 Copyright © 2009 LG Electronics. Inc. All right reserved. - 119 - LGE Internal Use Only Only for training and service purposes...
Page 119 EWFNLBAXX PCM_SYNC_I2S_WS I2S1_WA0 GND4 PCM_CLK_I2S_CLK I2S1_CLK GND5 PCM_OUT_I2S_OUT I2S1_RX GND6 PCM_IN I2S1_TX PGND1 PGND2 PGND3 PGND4 SC400 SC_GD310 LGE Internal Use Only - 120 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 120 R112 KEY_COL0 KEY_ROW2 KEY_COL1 KEY_ROW3 KEY_COL2 KEY_ROW4 CN102 KEY_COL3 KEY_ROW5 R113 KEY_COL4 TP_GND UFL-R-SMT10 GB042-30S-H10-E3000 C101 C103 0.5p Copyright © 2009 LG Electronics. Inc. All right reserved. - 121 - LGE Internal Use Only Only for training and service purposes...
Page 121 1Kohms R102 VOUT PGND 10ohms R103 C102 R101 AAT3169IFO-T1 C105 100Kohms 100Kohms 04-6293-037-001-829 SUY98005LT1G C110 C112 C116 0.1uF LGE Internal Use Only - 122 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 122 KEY_COL1 KEY_ROW3 KEY_COL1 KEY_ROW3 KEY_COL2 KEY_ROW4 KEY_COL2 KEY_ROW4 KEY_COL3 KEY_ROW5 KEY_COL3 KEY_ROW5 KEY_COL4 KEY_COL4 ENBY0040601 ENBY0040701 GB042-30P-H10-E3000 GB042-30S-H10-E3000 Copyright © 2009 LG Electronics. Inc. All right reserved. - 123 - LGE Internal Use Only Only for training and service purposes...
Page 123 8. CIRCUIT DIAGRAM SIDEKEY_VOLUME VOL_UP VOL_DOWN CN100 KEY_COL0 KEY_COL1 KEY_ROW5 LGE Internal Use Only - 124 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124: Bga Pin Map
9. BGA Pin Map 9. BGA Pin Map Memory pin map *NC: not connected *DNU: do not use Copyright © 2009 LG Electronics. Inc. All right reserved. - 125 - LGE Internal Use Only Only for training and service purposes...
Page 128: Pcb Layout
No Service CN200 Battery Connector FL400 FEM No Power On WCDMA/GSM Rx Sensitivity & Tx Power No Service Copyright © 2009 LG Electronics. Inc. All right reserved. - 129 - LGE Internal Use Only Only for training and service purposes...
Page 129 CN201 SIM & uSD Socket U201 PMIC No Micro-SD No Power On No USIM U300 Charging IC(OVP) No Charging LGE Internal Use Only - 130 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130 10. PCB LAYOUT KB11 KB12 ON-END SW103 SW106 SW107 SW101 SW109 SW108 SW104 SW102 SW100 KB10 SW105 GD310_KEY_SPEY0062601-1.1-TOP Copyright © 2009 LG Electronics. Inc. All right reserved. - 131 - LGE Internal Use Only Only for training and service purposes...
Page 131 10. PCB LAYOUT R101 VA104 U100 CN101 CN102 C103 C101 R112 ANT100 GND101 MIC100 GD310_KEY_SPEY0062601-1.1-BOT LGE Internal Use Only - 132 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132 U100 LCD Charge Pump No Display Backlight CN101 LCD Conn. CN101 No Display CN103 Camera Conn. No Camera GD310_F_LCD_SPCY0188401-1.1-TOP Copyright © 2009 LG Electronics. Inc. All right reserved. - 133 - LGE Internal Use Only Only for training and service purposes...
Page 133 RTC Reset CN102 Folder to Main Conn. No Display No Camera No Speaker CN102 No Vibration No 7segment LED LGE Internal Use Only - 134 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136: Rf Calibration
11.1. Test Equipment Setup 5.30 0.000 A 11.2. Calibration Step 11.2.1 Turn on the Phone. 11.2.2 Execute “HK_2G_40.exe” Copyright © 2009 LG Electronics. Inc. All right reserved. - 137 - LGE Internal Use Only Only for training and service purposes...
Page 137 11. RF Calibration 11.2.3. Click “ SETTING” Menu 11.2.4. Setup “ Ezlooks” menu such as the following figure LGE Internal Use Only - 138 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 138 PWR: Power Supply Operation Mode CELL: Call-Test Equipment 1. By-pass: not control by GPIB 2. Normal: control by GPIB Copyright © 2009 LG Electronics. Inc. All right reserved. - 139 - LGE Internal Use Only Only for training and service purposes...
Page 139 11. RF Calibration 11.2.7. Select “ MODEL” . 11.2.8. Click “ START” for RF calibration 11.2.9. RF Calibration finishes. LGE Internal Use Only - 140 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 140 ->EDGE DCS->EDGE PCS RX Channel compensation: EGSM->GSM850->DCS->PCS 4. Phone Operation Mode < Normal Mode > < ptest Mode> Copyright © 2009 LG Electronics. Inc. All right reserved. - 141 - LGE Internal Use Only Only for training and service purposes...
Page 141: Stand-Alone Test
③Confirm EEPROM & Delta file prefix name. ① ② ③ ④Click “Update Info” for communicating Phone and Test-Program. Not Connected ④ LGE Internal Use Only - 142 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 142 ⑥Select “Non signaling” in the Quick Bar menu. Then Standalone Test setup is finished. ⑥ ⑤ Change “ ptest mood” Copyright © 2009 LG Electronics. Inc. All right reserved. - 143 - LGE Internal Use Only Only for training and service purposes...
Page 143: Tx Test
③Select “Tx” in the RF mode menu and “PCL” in the PA Level menu. ④Finally, Click “Write All” bar and try the efficiency test of Phone. ④ ③ ② LGE Internal Use Only - 144 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 144: Rx Test
⑤Change the Phone to “normal mode” and then Click the “Reset” bar.\ ⑤ ④ Change “normal mode “ Copyright © 2009 LG Electronics. Inc. All right reserved. - 145 - LGE Internal Use Only Only for training and service purposes...
Page 146: Exploded View & Replacement Part List
13. EXPLODED VIEW & REPLACEMENT PART LIST 13.1 EXPLODED VIEW Copyright © 2009 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...
Page 148: Replacement Parts
COMPLEX, (empty), , , , , COLOR WITHOUT MMAA00 MAGNET,SWITCH MMAA0011201 COMPLEX, (empty), , , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 149 - LGE Internal Use Only Only for training and service purposes...
Page 149 COMPLEX, (empty), , , , , COLOR WITHOUT MTAA00 TAPE,DECO MTAA0199301 COMPLEX, (empty), , , , , COLOR LGE Internal Use Only - 150 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150 COMPLEX, (empty), , , , , WHITE Without MHFD00 HINGE,FOLDER MHFD0016401 CASTING, STS, , , , , Color Copyright © 2009 LG Electronics. Inc. All right reserved. - 151 - LGE Internal Use Only Only for training and service purposes...
Page 151 COMPLEX, (empty), , , , , COLOR WITHOUT MCBA00 CAN,SHIELD MCBA0053301 PRESS, STS, 0.15, , , , COLOR LGE Internal Use Only - 152 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 LABEL MLAZ0038301 PID Label 4 Array COLOR WITHOUT SC400 FRAME,SHIELD MFEA0032701 PRESS, STS, 0.2, , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...
Page 153: Main Component
ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C103 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only - 154 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154 ASSY,KEYPAD,INSERT SPKY PCB,SIDEKEY SPKY0076101 POLYI ,0.67 mm,DOUBLE , ,; , , , , , , , , , Copyright © 2009 LG Electronics. Inc. All right reserved. - 155 - LGE Internal Use Only Only for training and service purposes...
Page 155 ,[empty] 3.0 ,-5.0 dBd,, ,internal, GSM850/900/1800/1900 ,; SNGF ANTENNA,GSM,FIXED SNGF0049601 ,QUAD ,-5.0 ,50 ,3.0 SAFY PCB ASSY,MAIN SAFY0356101 LGE Internal Use Only - 156 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C126 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 157 - LGE Internal Use Only Only for training and service purposes...
Page 157 2.2 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C401 CAP,CHIP,MAKER ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP C403 CAP,CERAMIC,CHIP ECCH0000151 4.7 nF,25V,K,X7R,HD,1005,R/TP LGE Internal Use Only - 158 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C438 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 159 - LGE Internal Use Only Only for training and service purposes...
Page 159 M400 MODULE,ETC SMZY0019201 ,Bluetooth Q200 TR,BJT,NPN EQBN0007601 SOT-23 ,0.15 W,R/TP ,EMT3 Q201 TR,BJT,NPN EQBN0007601 SOT-23 ,0.15 W,R/TP ,EMT3 LGE Internal Use Only - 160 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160 ERHZ0000206 10 ohm,1/16W ,F ,1005 ,R/TP FBGA ,107 ,ETC ,FULLY 1.8V 1G(LB/64Mx16) U100 EUSY0335806 NAND+512M(DDR/8Mx4x16) SDRAM ,; ,IC,MCP Copyright © 2009 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
Page 161 ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C222 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only - 162 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 162 ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C222 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 163 - LGE Internal Use Only Only for training and service purposes...
Page 163 EDSY0009901 ESC ,80 V,300 A,R/TP ,1.6*0.8*0.6(t) FB200 FILTER,BEAD,CHIP SFBH0009201 220 ohm,1608 , FB201 FILTER,BEAD,CHIP SFBH0009201 220 ohm,1608 , LGE Internal Use Only - 164 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 164 47 ohm,1/16W ,J ,1005 ,R/TP R300 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP R301 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only Only for training and service purposes...
Page 165 EUSY0371201 Switch VA300 VARISTOR SEVY0004101 5.6 V, ,SMD ,360pF, 1005 VA301 VARISTOR SEVY0004101 5.6 V, ,SMD ,360pF, 1005 LGE Internal Use Only - 166 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166: Accessory
100-240V ,5060 Hz,5.0 V,0.5 A,CCC ,China Standard TA ADAPTOR,AC-DC SSAD0026502 ,; , , , , , ,WALL 2P ,USB , Copyright © 2009 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...

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LG GD310 Service Manual

1 Introduction

2 Performance

3 Technical Brief

4 PCB Picture

5 Trouble Shooting

6 Download & S/W Upgrade

7 Block Diagram

8 Circuit Diagram

9 BGA Pin Map

10 Pcb Layout

11 RF Calibration

12 Stand-Alone Test

13 Exploded View & Replacement Part List

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