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Service Manual Model : LG-C320
Internal Use Only
Service Manual
LG-C320
Date: October, 2010 / Issue 1.0
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Table Of Contents 1. INTRODUCTION ..................................................................5 4.12 Speaker/Speaker Phone path ...............................................7 1.1 Purpose ............................................................................................... 5 4.1 Main microphone ......................................................................78 1.2 Regulatory Information ............................................................... 5 4.14 Headset microp
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LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. - 4 - Only for training and service purposes
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1. INTRODUCTION Introduction 1. INTRODUCTION 1.1 Purpose This manual provides the information necessary to repair, calibration, description and download the features of this model. 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 telec
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1. INTRODUCTION 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 A phone may interfere with sensitive laboratory
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1. INTRODUCTION 1. INTRODUCTION 1.3 Abbreviations 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 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 ESD Electrostatic Discharge FPCB Flexible Printed Circuit Board GMSK Gaussian Minimum Shift Keying G
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1. INTRODUCTION 1. INTRODUCTION PAM Power Amplifier Module PCB Printed Circuit Board 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 PSRAM Pseudo SRAM STMR Side Tone Masking Rating TA Travel Adapter TDD Time Division Duplex TDMA Time Division Mult
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2. PERFORMANCE 2. PERFORMANCE 2.1 Product Name C320 : EGSM/GSM850/DCS/PCS (GPRS Class 12 / EDGE Class 12) 2.2 Supporting Standard Item Feature Comment Supporting Standard EGSM/GSM850/DCS1800/PCS1900 with seamless handover P Phase 2+(include A hase 2+(include A MR) MR) SIM SIM T Toolk oolkit : Class 1, 2, it : , C-E Class 1, 2, 3, C-E Frequency Range EGSM TX : 880 – 915 MHz EGSM RX : 925 – 960 MHz GSM850 TX : 824 – 849 MHz GSM850 RX : 869 – 894 MHz DCS1800 TX : 1710 – 1
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2. PERFORMANCE 2.4 HW Features Item Feature Comment Form Factor Slide type Battery 1) Capacity Standard : Li-Ion, 900 mAh 2) Packing Type : Soft Pack Size Standard : 91 x 63 x 15.9 mm Weight 115.6g With Battery Volume TBD PCB Stag type, 10 Layers , 0.8t Stand by time Up to 300 hrs @ Paging Period 5 Charging time Up to 3 hrs @ Talk time 2G Up to 3.4hr @ Tx=Max(2G) RX sensitivity EGSM : -105 dBm GSM850 : -105 dBm DCS 1800 : -105 dBm PCS 1900 : -105
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2. PERFORMANCE Music Player MP3/AAC/AAC+/WMA Video Player PEG4, H.263,H.264 30fps@QVGA WMV 15fps@QCIF Camcorder MPEG4, 15fps@QVGA Voice Recording Yes Speaker Phone mode Yes Support Travel Adapter Yes CDROM No Stereo Headset Yes Data Cable Yes T-Flash Yes (External Memory) Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes 5
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2. PERFORMANCE 2.5 SW Features Item Feature Comment RSSI 0 ~ 7 Levels Battery Charging 0 ~ 3 Levels Key Volume 0 ~ 7 Level Audio Volume 1 ~ 20 Level Time / Date Display Yes Multi-Language Yes English / Chinese Trad. / Chinese Simp. / Thai / Korean / Malay / Indonesian / Vietnamese Quick Access Mode Dialing / Contact / Menu / Message / Camera PC Sync Yes PC suite 4 Speed Dial Yes Voice mail center -> 1 key Profile Yes not same with feature phone setting CLIP / CLIR Yes Pho
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2. PERFORMANCE Cell Broadcast Yes Download Over the WAP Game Yes Calendar Yes Memo Yes 100 World Clock Yes Unit Convert Yes Stop Watch Yes Wall Paper Yes WAP Browser Over WAP 2.0 Obigo Download Melody / Yes Over WAP Wallpaper SIM Lock Yes Operator Dependent SIM Toolkit Yes R99 MMS Yes Obigo +LG MMS Client EONS No CPHS Yes V4.2 ENS No Camera Yes 2M FF JAVA Yes CLDC V1.1 / MIDP V2.1 Download Over WAP Voice Dial No IrDa No Bluetooth Yes BT 2.1+EDR HFP/HSP/A2DP&A
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2. PERFORMANCE 2.6 HW SPEC. 1) GSM transceiver specification Item Specification Rms : 5° Phase Error Peak : 20 ° GSM : 0.1 ppm Frequency Error DCS/PCS : 0.1 ppm EMC(Radiated Spurious Emission GSM/DCS : < -28dBm Disturbance) Transmitter Output power and Burst GSM : 5dBm – 33dBm ± 3dB Timing DCS/PCS : 0dBm – 30dBm ± 3dB Burst Timing <3.69us Spectrum due to modulation out to less 200kHz : -36dBm than 1800kHz offset 600kHz : -51dBm/-56dBm GSM :
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2. PERFORMANCE 2.7 C320 Figures Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 15 - Only for training and service purposes 9
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3. TECHNICAL BRIEF 3. TECHNICAL BRIEF 2. Base Band Technical Description 3.1 General Description QSC6270 (3G disable)has all eight major functional blocks as like Figure 3.1 Figure 3.1 QSC6270(3G disable) Base band block LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes
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3. TECHNICAL BRIEF 3.1.1 Processor The QSC6270(3Gdisable) device integrates multiple processors on-chip: one ARM microprocessor and two DSP processors. Each processor is part of a functional subsystem: The micro subsystem includes the ARM926EJ-S microprocessor. The modem subsystem includes the QDSP4u8 digital signal processor (mDSP). The application subsystem includes the QDSP4u8 application digital signal processor(aDSP). Figure 3.1.1 Processors and bus architecture Copyright © 2010 LG Elec
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3. TECHNICAL BRIEF 3.1.2 Memory support (and LCD interface) 3.1.2 Memory support (and LCD interface) The QSC62x0 device has two external bus interface (EBI) ports: EBI1 and EBI2. The QSC62x0 device has two external bus interface (EBI) ports: EBI1 and EBI2. EBI1 supports high-speed synchronous dynamic devices. Its memory controller supports the new mobile EBI1 supports high-speed synchronous dynamic devices. Its memory controller supports the new mobile DDR DDR SDRAM memories with its higher ba
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3. TECHNICAL BRIEF LDO_LCD_2.8V LDO_LCD_1.8V LCD_RST EBI2_WE_N LCD_ADS QVGA Main LCD_CS_N LCD EBI2_DATA[15:0] (2.4", 320x240) LCD_IF(2:1) QSC6270 (3G disable) WLED_PWR Figure 3.1.2.2 The LCD interfaces of C320 Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 19 - Only for training and service purposes
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3. TECHNICAL BRIEF 3.1.3 Connectivity QSC6270 has connectivity features as below – USB-OTG; USB LS, FS, and HS (2.0 compliant) – I2C compatible for peripheral controls (1.8 V) – UART: up to 4 Mbps – Bluetooth 2.0 support via external SoC – WLAN via external device (SDIO) – NFC via external module (I2C) – FM radio via external module (I2C) – USIM, SIM, and USB-UICC support; 1.8 and 3 V – Keypad interface – SPI (master only) for peripheral support – Two secure digital controllers — WLAN and secure
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3. TECHNICAL BRIEF 3.1.4 GPIOs QSC6270 (3G disable has 78 configurable I/O pins HALL_SENS_DET BT_RST_N BT_WAKEUP_HOST MUSIM_DP MUSIM_DM WLAN_CLK WLAN_SDIO[3] WLAN_SDIO[2] WLAN_SDIO[1] WLAN_SDIO[0] WLAN_CMD BT_PWR_ON LCD_IF_MODE[0] HS_JACK_DET WLAN_BT_REG_ON LCD_RST_N WLAN_RST_N BL_LCD_CAM_LDO_I2C_SDA BL_LCD_CAM_LDO_I2C_SCL MUIC_INT_N MUIC_AUD_FM_I2C_SCL MUIC_AUD_FM_I2C_SDA CHG_STS_N CHG_EN_N High : BT UART Low : UART Comm BL_LCD_CAM_LDO_EN UART_BT_SEL Figure 3.1.4 GPIOs of C320 Copyright © 2010
