Page 1 Internal Use Only Service Manual GM310 Date: April, 2009 / Issue 1.0...
Page 2: Table Of Contents
5.1 Trouble shooting test setup ........64 5.2 Power on trouble ............65 5.3 Charging Trouble ............68 5.4 USB Trouble ..............71 Copyright © 2009 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
Page 5: Only For Training And Service Purposes
• When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only - 6 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 6: Abbreviation
◆ LGE Offset Phase Locked Loop ◆ OPLL ◆ PAM Power Amplifier Module Printed Circuit Board ◆ PCB Copyright © 2009 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
Page 7: Only For Training And Service Purposes
Voltage Control Temperature Compensated Crystal ◆ VCTCXO Oscillator Wireless Application Protocol ◆ WAP ◆ 8PSK 8 Phase Shift Keying LGE Internal Use Only - 8 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 8: Performance
2.2 Main Parts : Solution Item Part name Comment Digital Baseband PMB8868 (Infineon) Analog Baseband PMB8868 (Infineon) RF chip PMB6952 (Infineon) Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
Page 9: H/W Features
2.2” 240x320 (QVGA) TFT Built-in Camera 3 Mega pixel Main : Internal Fixed Type System connector 18 Pin LGE Internal Use Only - 10 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10: Only For Training And Service Purposes
Blue Tooth V1.2, A2DP Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash Copyright © 2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
Page 11: Hw Spec
Speech channels AM Suppression -98dBm/-96dBm (2.439%) GSM : -31dBm - DCS : - 29dBm Timing Advance ± 0.5T 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
< 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout -20 dBm 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
Adjust output(TPC command) Uplink +0.5/1.5 +1/3 +1.5/4 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 -0.5/-1.5 -1/-3 -1.5/-4 group(10equal command group) +8/+12 +16/+24 LGE Internal Use Only - 14 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 14: Bb Circuit Technical Brief
[Figure 3.1] Functional Block Diagram 3.2 Baseband Processor Introduction [Figure 3.2] Top level block diagram of the MPEH(PMB8868) 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
- 48k x 16bit Data XRAM -5k x 16bit Data YRAM - Incremental Redundancy(IR) Memory of 35904 words of 16bit 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
- 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) Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only...
Page 17: Only For Training And Service Purposes
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 LGE Internal Use Only - 18 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 18: Only For Training And Service Purposes
RF block temperature measure JACK_TYPE Accessory type detect H/W VERSION H/W version detect VBAT Battery supply voltage measure 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
USIF3 _TXD_MTSR USB_SEL USB 1.1, 2.0 select GPIO_21 CLK32k For FM Radio, BT CLK32K CLK32K Not used GPIO_22 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
DIF_RESET1 A_RESET 3G reset DIF_RESET2 SCL_PMIC For PMIC I2C1_SCL SDA_PMIC For PMIC I2C1_SDA PM_INT For PMIC PM_INT (EINT) 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
For Bluetooth I2S1_WA0 Audio I/F REC_N For Receiver EPN1 REC_P For Receiver EPP1 HS_L For Headset EPPA1 Reference EPREF 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
JTAG0_TCK JTAG0_TRST_n JTAG0_RTCK JTAG1_TDO JTAG1_TDI JTAG1_TMS JTAG1_rTCK JTAG0_TRST_n ETM I/F TRIG_IN MON1 MON1 MON2 MON2 TRACESYNC TRACECLK PIPESTAT[2] Copyright © 2009 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only Only for training and service purposes...
Page 23: Only For Training And Service Purposes
UDQS MEM _BC3_n ADD(0) MEM _A[0] ADD(1) MEM _A[1] ADD(2) MEM _A[2] ADD(3) MEM _A[3] ADD(4) MEM _A[4] 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
For Burst mode MEM _SDCLK0 BFCLKO For Burst mode MEM _BFCLK01 SDCLK1 For Burst mode MEM _BFCLK02 MEM _CKE Copyright © 2009 LG Electronics. Inc. All right reserved. - 25 - LGE Internal Use Only Only for training and service purposes...
Page 25: Only For Training And Service Purposes
26M Main Clock F26M to 32k crystal F32K to 32k crystal OSC32K _RESET RESET_n TRIG_OUT TRIG_OUT RTC_OUT RTC_OUT VCXO_EN VCXO_EN LGE Internal Use Only - 26 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26: Power Management Ic
• USB interface support for peripheral and mini-host mode • Backlight LEDs driver with current selection and PWM dimming function • Two single LED driver outputs for signaling Copyright © 2009 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only...
Page 27: Only For Training And Service Purposes
- Programable charge current limitation for use with different batteries - Freely programable pulse charging to reduce the thermal power dissipation in the constant voltage charging phase 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
- 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. - 29 - LGE Internal Use Only Only for training and service purposes...
Page 29: Only For Training And Service Purposes
Real Time Clock VAFC 2V7_VRF 2.65V Not used VVIB 2V8_VAMP 2.8V 140mA Not used [Figure3.3.1-1] SM-Power 3 Circuit Diagram LGE Internal Use Only - 30 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30: Only For Training And Service Purposes
: standard charging (up to 4.2 V) 60 ~ : low charging voltage operation (3.6V ~ 3.9V) ℃ [Figure 3.3.2-1] Charging IC (ISL9221) 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
3. BB Circuit Technical brief GM310f service manual [Table 3.3.2-1] PIN description of Charging IC [Figure 3.3.2-1] Block diagram of Charging IC 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
3. BB Circuit Technical brief GM310f service manual [Figure 3.3.2-2] Charging Profile Copyright © 2009 LG Electronics. Inc. All right reserved. - 33 - LGE Internal Use Only Only for training and service purposes...
Page 33: Power On/Off
If push the END_KEY button, voltage level of PWRON pin is change from high to low. ON_OFF1 is a power-on input for SM-POWER3 with active low levels. LGE Internal Use Only - 34 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34: Sim Interface
SIM_CLK : SIM card reference clock SIM_RST : SIM card Async /sync reset SIM_IO : SIM card bidirectional reset [Figure 3.5-1] SIM Circuit Copyright © 2009 LG Electronics. Inc. All right reserved. - 35 - LGE Internal Use Only Only for training and service purposes...
Page 35: Micro Sd Connector
The Micro SD Memory Module has eight exposed contacts on one side. The S-Gold3H-LC connected to the module using a dedicated eight-pin connector [Figure 3.6-1] Micro SD Connector LGE Internal Use Only - 36 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36: Memory
ADD(0) ~ ADD(24). The 1Gbit Nand Flash memory with DDR SDRAM stacked device family offers multiple high-performance solutions. ) t i [Figure 3.7-1] Memory circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 37 - LGE Internal Use Only Only for training and service purposes...
Page 37: Lcd Display
- LCD: 2.2” 240x320 (QVGA) TFT - Backlight : 5 piece of white LED [Figure3.8-1] LCD circuit diagram LGE Internal Use Only - 38 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38: Keypad Switching & Scanning
Port Control Logic) and 8 columns (inputs to PCL). The number of rows and columns depend on settings of the PCL. [Figure 3.9-1] Function key circuit diagram [Figure 3.9-2] Number key circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 39 - LGE Internal Use Only Only for training and service purposes...
Page 39: Keypad Back-Light Illumination
POWER3 Flash LED drivers is shown in below Figure. [Figure 3.10.1-1] LED driver in the SM-POWER3 [Figure 3.10.1-2] Number key back-light LED circuit diagram LGE Internal Use Only - 40 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40: Only For Training And Service Purposes
AAT3169 is high efficiency charge pump LED driver using proprietary mAhXLife technology. The load and supply conditions determine whether the charge pump operates 1X, 1.5X, or 2X mode. Figure 3.11-1] LCD charge pump circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 41 - LGE Internal Use Only...
Page 41: Battery Voltage Monitor
3.12 Battery voltage monitor S-Gold3H-LC is monitor battery capacity with ADC port. [Figure3.12-1] Battery voltage monitor circuit diagram LGE Internal Use Only - 42 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42: Audio
ROUT LOUT LOUT RHPOUT RHPOUT LHPOUT LHPOUT 18PIN 18PIN Ext.SPK Ext.SPK [ Figure 3.13-1] Audio signal flow diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 43 - LGE Internal Use Only Only for training and service purposes...
Page 43: Only For Training And Service Purposes
LM49150 delivers up to 725mV from a 3.7V supply into an 8ohm load with 87% efficiency to extend battery life. [Figure 3.13.1-1] Audio AMP circuit diagram 3.13.2 Microphone circuit [Figure 3.13.2-1] Microphone circuit diagram LGE Internal Use Only - 44 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44: Only For Training And Service Purposes
3. BB Circuit Technical brief GM310f service manual 3.13.3 Headset circuit [Figure 3.13.3-1] Headset circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 45 - LGE Internal Use Only Only for training and service purposes...
Page 45: Bluetooth
I2C compatible control interface and stereo analog output, as well as I2S and PCM interfaces. We used the level shifter to adjust I/O level of the Bluetooth module. 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
-Desktop and Laptop personal computers -Automotive telematic systems -Computer peripheral devices (PCMCIA cards, CF cards, and USB dongles) Copyright © 2009 LG Electronics. Inc. All right reserved. - 47 - LGE Internal Use Only Only for training and service purposes...
Page 47: Only For Training And Service Purposes
3. BB Circuit Technical brief GM310f service manual (26 MH ) (32 KH ) [Figure 3.14.1-2] Bluetooth Block Diagram LGE Internal Use Only - 48 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48: 18Pin Interface Connector
Charger voltage VCHG Charger voltage USB_VCHG USB VBUS UART_TX UART TX data UART_RX UART RX data Power GND Copyright © 2009 LG Electronics. Inc. All right reserved. - 49 - LGE Internal Use Only Only for training and service purposes...
Page 49: Rf Circuit Technical Brief
Rx RF SAW PA_EN PA_EN PA_EN PA_EN PA_MODE PA_MODE PA_MODE PA_MODE [Figure 4.1-1] Block Diagram of RF part 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
Integrated 3.8GHz V CO 1.4...1.6V Supply 2.7...2.95V Supply VCO_RC [Figure 4.1-2] RF Functional Block Diagram 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
4. RF Circuit Technical Brief GM310f service manual [Figure 4.1-3] Schematic of RF Control Signals LGE Internal Use Only - 52 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52: Gsm Part
Furthermore an automatic DC-offset compensation can be used (depending on the gain setting) to reduce the DC-offset at baseband-output. A programmable gain correction can be applied to correct for front end- and receiver gain tolerances. Copyright © 2009 LG Electronics. Inc. All right reserved. - 53 - LGE Internal Use Only...
Page 53: Only For Training And Service Purposes
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. 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
Implemented in the SMARTi 3GE are two outputs for direct control of GSM front end modules with two logic input pins to select RX- and TX-mode as well as low- and highband operation. Copyright © 2009 LG Electronics. Inc. All right reserved. - 55 -...
Page 55: Only For Training And Service Purposes
WCDMA 900 WCDMA 1900 WCDMA 1900 WCDMA 2100 WCDMA 2100 GM310 [Figure 4.2.5-3] Front End Control Logic Table LGE Internal Use Only - 56 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56: Wcdma Part
DC compensation loop. The subsequent last PGC amplifier stage provides 1 dB gain steps. All gains are selected by 3-wire bus program-ming. Copyright © 2009 LG Electronics. Inc. All right reserved. - 57 -...
Page 57: Only For Training And Service Purposes
The total VCO frequency range is divided in 256 subranges, in order to limit the VCO slope. Before the settling process of the PLL starts, a successive approximation algorithm selects the most appropriate subrange. LGE Internal Use Only - 58 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58: Gsm Power Ampliﬁ Er Module
4.4 GSM Power Amplifier Module [Figure 4.4-1] Schematic Diagram of 2.5G PAM (TQM7M5005) [Table 4.4-1] TQM7M5005 Pin description Copyright © 2009 LG Electronics. Inc. All right reserved. - 59 - LGE Internal Use Only Only for training and service purposes...
Page 59: Wcdma Band1+8 Power Ampliﬁ Er Module
4.5 WCDMA Band1+8 Power Amplifier Module > [Figure 4.5-1] Schematic Diagram of WCDMA Band1+5 PAM (AWT6224) [Table 4.5-1] AWT6224 Pin description LGE Internal Use Only - 60 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60: Wcdma Band1+8 Low Noise Ampliﬁ Er
4.6 WCDMA Band1+8 Low Noise Amplifier [Figure 4.6-1] Schematic Diagram of WCDMA Band1 LNA (BGA735) [Table 4.6-1] BGA735 Pin description Copyright © 2009 LG Electronics. Inc. All right reserved. - 61 - LGE Internal Use Only Only for training and service purposes...
Page 61: Wcdma Band1 Duplexer
GM310f service manual 4.7 WCDMA Band1 Duplexer [Figure 4.7-1] Schematic Diagram of WCDMA Band1 Duplexer [Table 4.7-1] B7646 Pin description LGE Internal Use Only - 62 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62: Wcdma Band5 Duplexer
GM310f service manual 4.8 WCDMA Band8 Duplexer [Figure 4.8-1] Schematic Diagram of WCDMA Band8 Duplexer [Table 4.8-1] SAYZZ897MBA0B00 Pin description Copyright © 2009 LG Electronics. Inc. All right reserved. - 63 - LGE Internal Use Only Only for training and service purposes...
Page 63: Trouble Shooting
- Connect mobile switch cable between Communication test set and DUT when you need to make a phone call. - Follow trouble shooting procedure LGE Internal Use Only - 64 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71: Only For Training And Service Purposes
5. Trouble shooting U204 D201 LGE Internal Use Only - 72 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74: Number Key Sense Trouble
5. Trouble shooting 5.6 Number Key Sense Trouble Copyright © 2009 LG Electronics. Inc. All right reserved. - 75 - LGE Internal Use Only Only for training and service purposes...
Page 75 AA19 KP_OUT2 INOUT_A3 INOUT_B3 KEYOUT2 KP_OUT3 INOUT_A4 INOUT_B4 KEYOUT3 FL102 EPN1_1 EAR_N ICVE10184E150R500FR EPN1_2 EPP1_1 EAR_P EPP1_2 FL102 LGE Internal Use Only - 76 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76: Multi Key Sense Trouble
5. Trouble shooting 5.7 Multi Key sense Trouble Copyright © 2009 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only Only for training and service purposes...
Page 77 AA19 KP_OUT2 INOUT_A3 INOUT_B3 KEYOUT2 KP_OUT3 INOUT_A4 INOUT_B4 KEYOUT3 FL102 EPN1_1 EAR_N ICVE10184E150R500FR EPN1_2 EPP1_1 EAR_P EPP1_2 FL102 LGE Internal Use Only - 78 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78: Keypad Backlight Trouble
5. Trouble shooting 5.8 Keypad backlight Trouble Copyright © 2009 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only Only for training and service purposes...
Page 79 I2S2_CLK0 BT_RESETn I2S2_CLK1 DBB_BT_INT I2S2_RX TCC_INT I2S2_TX BT_INT I2S2_WA0 MAIN_KEY_EN I2S2_WA1 FM_ANT_SEL I2RF_STR0 3G_EN I2RF_DATA 3G_DATA I2RF_SCLK 3G_CLK LGE Internal Use Only - 80 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82: Audio Trouble
5. Trouble shooting 5.10 Audio Trouble 5.10.1 Receiver path Copyright © 2009 LG Electronics. Inc. All right reserved. - 83 - LGE Internal Use Only Only for training and service purposes...
Page 86: Microphone Trouble
5. Trouble shooting 5.11 Microphone Trouble 5.11.1 Microphone for main MIC Copyright © 2009 LG Electronics. Inc. All right reserved. - 87 - LGE Internal Use Only Only for training and service purposes...
Page 95 6. You can select wanted test cases after getting an optimized power 7. Blue tooth Off 1)Menu setting 5)Connectivity 1)Bluetooth 1)Turn on/Turn off LGE Internal Use Only - 96 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 97: Rf Component
Rx SAW Filter(WCDMA900) Tx SAW Filter(WCDMA2100) U1002 Buffer FL1003 LNA(WCDMA2100/900) FL1006 Tx SAW Filter(WCDMA900) U606 RF cable connector SW1001 LGE Internal Use Only - 98 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98: Rf Signal Path
W900 Tx/Rx Path 5.16.2 GSM PATH GSM850/900 Tx Path DCS1800/PCS1900 Tx Path GSM850/900/DCS1800/PCS1900 Rx Path GSM850/900/DCS1800/PCS1900 Tx/Rx Path Copyright © 2009 LG Electronics. Inc. All right reserved. - 99 - LGE Internal Use Only Only for training and service purposes...
Page 99: Trouble Shoothing Of Gsm Part
5. Trouble shooting 5.17 Trouble Shoothing of GSM Part LGE Internal Use Only - 100 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102 1800 RX 1900 RX 1900 RX WCDMA 900 WCDMA 900 WCDMA 1900 WCDMA 1900 WCDMA 2100 WCDMA 2100 Copyright © 2009 LG Electronics. Inc. All right reserved. - 103 - LGE Internal Use Only Only for training and service purposes...
Page 104 5. Trouble shooting GM310f service manual Rx path circuit diagram Rx path circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 105 - LGE Internal Use Only Only for training and service purposes...
Page 106 Power Amp Gain Control. Typically, 0.2 ~1.6V TXON_PA Power Amp Enable (ON : >1.25V, OFF : <0.5V) VBAT PAM Supply Voltage (Vcc > 3V) Copyright © 2009 LG Electronics. Inc. All right reserved. - 107 - LGE Internal Use Only Only for training and service purposes...
Page 107: Trouble Shooting Of Wcdma Part
5. Trouble shooting 5.18 Trouble Shooting of WCDMA Part LGE Internal Use Only - 108 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 108 5.18.1 Checking VCTCXO Refer to GSM Part (15.16.1) 5.18.2 Checking Mobile SW & FEM Refer to GSM Part (15.16.2) Copyright © 2009 LG Electronics. Inc. All right reserved. - 109 - LGE Internal Use Only Only for training and service purposes...
Page 109 Check FL1002 or FL1006 >=TP4 level-2 dBm? Check U1004 and U103 Rx Still has problem? Rx Path is OK LGE Internal Use Only - 110 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 110 5. Trouble shooting GM310f service manual WCDMA Rx Circuit Diagram WCDMA Rx Circuit Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 111 - LGE Internal Use Only Only for training and service purposes...
Page 111 TP3 level 22dBm over? TP3 level 22dBm over? WCDMA Tx Path is OK WCDMA Tx Path is OK LGE Internal Use Only - 112 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 113 3.2 – 4.2V ≥ ≥ ≥ 3.2V ≥ 3.2V Shutdown Shutdown shutdown shutdown 3.2 – 4.2V 3.2 – 4.2V LGE Internal Use Only - 114 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 114: Download & S/W Upgrade
6. DOWNLOAD & S/W UPGRADE 6. DOWNLOAD & S/W UPGRADE GM310 GM310 GM310 Copyright © 2009 LG Electronics. Inc. All right reserved. - 115 - LGE Internal Use Only Only for training and service purposes...
Page 121 6. DOWNLOAD & S/W UPGRADE GM310 GM310 GM310 KP500 GM310 GM310 GM310 LGE Internal Use Only - 122 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 125: Block Diagram
900mAh Filter Filter Filter PMIC PMIC BT / FM Radio BT / FM Radio PMB6821 PMB6821 RBCA-B561A RBCA-B561A LGE Internal Use Only - 126 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136: Bga Pin Map
PMB6952 Pin Configuration (Top View) PMB6952 Pin Configuration (Top View) PMB6952 Pin Configuration (Top View) : NC Pin : NC Pin Copyright © 2009 LG Electronics. Inc. All right reserved. - 137 - LGE Internal Use Only Only for training and service purposes...
Page 137 GM310f service manual BCM2046SB1 Pin Configuration (Top View) BCM2046SB1 Pin Configuration (Top View) : NC Pin : NC Pin LGE Internal Use Only - 138 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 138 GM310f service manual PMB6821 PMB6821 Pin Configuration (Top View) PMB6821 Pin Configuration (Top View) : NC Pin : NC Pin Copyright © 2009 LG Electronics. Inc. All right reserved. - 139 - LGE Internal Use Only Only for training and service purposes...
Page 140 GM310f service manual PMB8868 PMB8868 Pin Configuration (Top View) PMB8868 Pin Configuration (Top View) : NC Pin : NC Pin Copyright © 2009 LG Electronics. Inc. All right reserved. - 141 - LGE Internal Use Only Only for training and service purposes...
Page 145 No Ear-phone Sound CN101 Main to Sub Conn. SIM Card u-SD Ear-phone S101 u-SD Socket J102 SIM Socket u-SD LGE Internal Use Only - 146 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 146 LD105 MP3 FF Touch key Backlight LED Touch key Backlight LED LD101 ~4 Navi Touch key Backlight LED Copyright © 2009 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...
Page 147 Touch key Backlight U105 Vibrator Driver IC Vibrator U210, U206 Charge Pump No Display U103 Hall IC Slide Detect LGE Internal Use Only - 148 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 148 No Display No Display SPK, RCV Sound Touch & Vibrator Touch & Vibrator Touch key Backlight Touch key Backlight Copyright © 2009 LG Electronics. Inc. All right reserved. - 149 - LGE Internal Use Only Only for training and service purposes...
Page 149 10. PCB LAYOUT CN103 SPK Solder Pad VB101 Vibrator Solder Pad No SPK Sound No Vibrator LGE Internal Use Only - 150 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150 10. PCB LAYOUT LD101,102 Key Backlight LED Key Backlight MIC101 MEMS MIC No MIC Sound Copyright © 2009 LG Electronics. Inc. All right reserved. - 151 - LGE Internal Use Only Only for training and service purposes...
Page 151 10. PCB LAYOUT CN101 Key Conn. No Key PAD No Power On No Key Backlight SW101 ANT SW No network LGE Internal Use Only - 152 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 10. PCB LAYOUT CN102 Main to Sub Conn. SIM Card u-SD Ear-phone Copyright © 2009 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...
Page 153 10. PCB LAYOUT CN101 Main to Sub Conn. SIM Card u-SD Ear-phone LGE Internal Use Only - 154 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154: Rf Calibration
11. RF Calibration 11.1. Test Equipment Setup 11.2. Calibration Step 11.2.1. Turn on the Phone. 11.2.2. Execute “HK_36.exe” Copyright © 2009 LG Electronics. Inc. All right reserved. - 155 - LGE Internal Use Only Only for training and service purposes...
Page 155 11. RF Calibration GM310f service manual 11.2.2. Click “SETTING” Menu 11.2.3. Setup “Ezlooks” menu such as the following figure LGE Internal Use Only - 156 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 11.2.5 Setup Logic operation such as the following figure. Setup UART port PWR: Power Supply CELL: Call Test Equipment 11.2.6. Select “MODEL”. Copyright © 2009 LG Electronics. Inc. All right reserved. - 157 - LGE Internal Use Only Only for training and service purposes...
Page 157 11. RF Calibration GM310f service manual 11.2.7. Click “START” for RF calibration Select Model` Start 11.2.8. RF Calibration finishes LGE Internal Use Only - 158 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 2. Calibration program automatically changes either “normal mode” or “ptest mode”. 3. Phone operation Mode < Normal Mode> <Ptest Mode> Copyright © 2009 LG Electronics. Inc. All right reserved. - 159 - LGE Internal Use Only Only for training and service purposes...
Page 160: Exploded View & Replacement Part List
12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW Copyright © 2009 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
Page 162: Replacement Parts
BUTTON ASSY,MAIN ABGF0010101 D, 43 COLOR WITHOUT ABGG00 BUTTON ASSY,SUB ABGG0008301 COLOR WITHOUT ACGK00 COVER ASSY,FRONT ACGK0125601 COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 163 - LGE Internal Use Only Only for training and service purposes...
Page 163 PAD,FLEXIBLE PCB MPBF0045901 GM310 Pad FPCB COLOR WITHOUT MPBJ00 PAD,MOTOR MPBJ0059501 COMPLEX, (empty), , , , , COLOR LGE Internal Use Only - 164 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 164 WITHOUT ADCA00 DOME ASSY,METAL ADCA0091701 SLIDE COLOR MGAD GASKET,SHIELD FORM MGAD0195601 COMPLEX, (empty), , , , , SILVER Copyright © 2009 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only Only for training and service purposes...
Page 165 TAPE,FLEXIBLE PCB MTAJ0013501 COMPLEX, (empty), , , , , COLOR WITHOUT MLAZ00 LABEL MLAZ0038301 PID Label 4 Array COLOR LGE Internal Use Only - 166 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166: Main Component
ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C105 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C106 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...
Page 167 35 ,0.3 mm,ETC , , ,; , ,0.30MM ,FPC ,STRAIGHT ,BOTH CN101 CONNECTOR,FFC/FPC ENQY0014901 ,SMD ,R/TP ,[empty] , LGE Internal Use Only - 168 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 168 SSON004 ,4 ,R/TP ,Hall IC ,; ,IC,CMOS HVSOF5 ,5 PIN,R/TP ,150mA CMOS LDO WITH U104 EUSY0223002 OUTPUT CONTROL / 2.8V Copyright © 2009 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only Only for training and service purposes...
Page 169 WHITE ,1608 ,R/TP ,PB-FREE(ZENER) LD105 DIODE,LED,CHIP EDLH0011901 WHITE ,1608 ,R/TP ,PB-FREE(ZENER) LD106 DIODE,LED,CHIP EDLH0011901 WHITE ,1608 ,R/TP ,PB-FREE(ZENER) LGE Internal Use Only - 170 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 170 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C106 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C107 CAP,CERAMIC,CHIP ECCH0000129 120 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 171 - LGE Internal Use Only Only for training and service purposes...
Page 171 ECZH0003118 560 pF,50V ,K ,X7R ,HD ,1005 ,R/TP R110 CAP,CHIP,MAKER ECZH0003118 560 pF,50V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only - 172 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 172 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C1021 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C1022 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only Only for training and service purposes...
Page 173 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C128 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only - 174 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 174 ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C215 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only Only for training and service purposes...
Page 175 1 uF,25V ,K ,X5R ,HD ,1608 ,R/TP C305 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP C306 CAP,CHIP,MAKER ECZH0000901 24 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only - 176 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 176 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (100Ohm,15pF), FL304 FILTER,EMI/POWER SFEY0010501 Pb-free SMD ,SMD ,18 V,4ch. EMI_ESD Filter (100Ohm,15pF), FL305 FILTER,EMI/POWER SFEY0010501 Pb-free Copyright © 2009 LG Electronics. Inc. All right reserved. - 177 - LGE Internal Use Only Only for training and service purposes...
Page 177 22 Kohm,1/16W ,F ,1005 ,R/TP R114 RES,CHIP,MAKER ERHZ0000490 51 ohm,1/16W ,J ,1005 ,R/TP R115 RES,CHIP,MAKER ERHZ0000490 51 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 178 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 178 22 ohm,1/16W ,J ,1005 ,R/TP R314 RES,CHIP,MAKER ERHZ0000441 22 ohm,1/16W ,J ,1005 ,R/TP R316 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 179 - LGE Internal Use Only Only for training and service purposes...
Page 179 SLP1006P2 ,5 V,100 W,R/TP ,1.0x0.6x0.5t ,; , , , , , ZD302 DIODE,TVS EDTY0009601 ,[empty] ,[empty] ,[empty] ,[empty] COLOR SAFD00 PCB ASSY,MAIN,SMT TOP SAFD0119101 UNFIXED LGE Internal Use Only - 180 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 180 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C1034 CAP,CERAMIC,CHIP ECCH0000180 3.3 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 181 - LGE Internal Use Only Only for training and service purposes...
Page 181 C1074 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C1075 CAP,CERAMIC,CHIP ECCH0000117 27 pF,50V,J,NP0,TC,1005,R/TP C1076 INDUCTOR,CHIP ELCH0004704 4.7 nH,S ,1005 ,R/TP , LGE Internal Use Only - 182 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 182 ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C243 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C244 CAP,CHIP,MAKER ECZH0000802 1 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 183 - LGE Internal Use Only Only for training and service purposes...
Page 183 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C417 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only - 184 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 184 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C447 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 185 - LGE Internal Use Only Only for training and service purposes...
Page 185 B-U, 200-50, W-BAND V Tx ,; ,836.5 ,1.4*1.1*0.6 ,SMD ,R/TP 836.5 MHz,869.5 MHz,2.5 dB,3.5 dB,45 dB,53 FL1007 DUPLEXER,DCN SDDY0004001 dB,3.0*2.5*1.2 ,SMD ,LTCC Type LGE Internal Use Only - 186 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 186 SOT-23 ,0.15 W,R/TP ,EMT3 Q203 TR,BJT,NPN EQBN0007601 SOT-23 ,0.15 W,R/TP ,EMT3 R1001 RES,CHIP,MAKER ERHZ0000244 22 Kohm,1/16W ,F ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 187 - LGE Internal Use Only Only for training and service purposes...
Page 187 100 Kohm,1/16W ,J ,1005 ,R/TP R228 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP R229 RES,CHIP,MAKER ERHZ0000286 4700 ohm,1/16W ,F ,1005 ,R/TP LGE Internal Use Only - 188 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 188 %, A, dBc, dB,5x5 ,SMD ,IFX Linear Edge ,; , , , , , , U1003 SMPY0017901 , ,R/TP ,R/TP , Copyright © 2009 LG Electronics. Inc. All right reserved. - 189 - LGE Internal Use Only Only for training and service purposes...
Page 189 1GB / MICROSD / SSE MLC 1 DIE ,; ,Module Assembly 1GB / MICROSD / HYN MLC 1 DIE / EAN30221132 ,; MODULE,ETC SMZY0018301 ,Module Assembly LGE Internal Use Only - 190 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 190: Accessory
100-240V ,5060 Hz,5.1 V,0.7 A, ,AC-DC ADAPTOR ,; ADAPTOR,AC-DC SSAD0032302 ,90Vac~264Vac ,4.75Vdc~5.25Vdc ,700mA ,5060 , ,WALL 2P ,I/O CONNECTOR , Copyright © 2009 LG Electronics. Inc. All right reserved. - 191 - LGE Internal Use Only Only for training and service purposes...

LG GM310 Service Manual

1 Introduction

2 Performance

3 Bb Circuit Technical Brief

4 RF Circuit Technical Brief

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 Exploded View & Replacement Part List

Quick Links

Troubleshooting

Related Manuals for LG GM310

Summary of Contents for LG GM310

Table of Contents