Service Manual
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Only for Mobile Communications International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode Offset Phase Locked Loop Power Amplifier Module ...Division Duplex Time Division Multiple Access Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol Copyright © 2008 LG Electronics. LGE Internal Use Only Introduction 1.3 Abbreviations For the purposes of this manual, following abbreviations apply: APC BB BER CC-CV DAC DCS dBm...
Only for Mobile Communications International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode Offset Phase Locked Loop Power Amplifier Module ...Division Duplex Time Division Multiple Access Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol Copyright © 2008 LG Electronics. LGE Internal Use Only Introduction 1.3 Abbreviations For the purposes of this manual, following abbreviations apply: APC BB BER CC-CV DAC DCS dBm...
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It supports all standard frequencies from 8kHz to mobile telephone terminal application and a Stereo path. - LGE Internal Use Only HW Circuit Description 3.5.2 Audio Signal Processing & Interface The Audio module consists of a Voice Codec dedicated ... audio components in the uplink path and transmits the converted data to the DSP speech coder through the voice serial port (VSP). Copyright © 2008 LG Electronics. 3. In the downlink path, the Voice Codec converts the digital samples of Triton generates the different power supplies required by Triton, the processors and...
It supports all standard frequencies from 8kHz to mobile telephone terminal application and a Stereo path. - LGE Internal Use Only HW Circuit Description 3.5.2 Audio Signal Processing & Interface The Audio module consists of a Voice Codec dedicated ... audio components in the uplink path and transmits the converted data to the DSP speech coder through the voice serial port (VSP). Copyright © 2008 LG Electronics. 3. In the downlink path, the Voice Codec converts the digital samples of Triton generates the different power supplies required by Triton, the processors and...
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...LED_B C12 LED_MAINKEY B12 LED_C A12 N.C I/ O Commen t I Power On Key I Remot e power on RTC_ALARM pin. - Switch-ON: mobile is powered to die temperature measurement, main battery voltage, backup battery voltage, charger voltage, charger current monitoring and USB Vbus voltage. ON_REMOTE: After ...debouncing, when a falling edgeis detected on VCHG. 3.5.6 Memories - 1G Mbit NAND Flash + 512Mbit DDR RAM Copyright © 2008 LG Electronics. CHARGER_IC:When a charger voltage is detected on key I BT clock request I RF block temper ature I Jack type deteect I LCD ID ...
...LED_B C12 LED_MAINKEY B12 LED_C A12 N.C I/ O Commen t I Power On Key I Remot e power on RTC_ALARM pin. - Switch-ON: mobile is powered to die temperature measurement, main battery voltage, backup battery voltage, charger voltage, charger current monitoring and USB Vbus voltage. ON_REMOTE: After ...debouncing, when a falling edgeis detected on VCHG. 3.5.6 Memories - 1G Mbit NAND Flash + 512Mbit DDR RAM Copyright © 2008 LG Electronics. CHARGER_IC:When a charger voltage is detected on key I BT clock request I RF block temper ature I Jack type deteect I LCD ID ...
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Inc. Trouble Shooting 4. All right reserved. Only for power up 4.000V 0.0000A Test Set Up Power on all of test equipment -Connect PIF-UNION JIG or dummy battery to the DUT for training and service purposes 4. Trouble Shooting Trouble Test Set-up . -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 - 42 - Copyright © 2008 LG Electronics.
Inc. Trouble Shooting 4. All right reserved. Only for power up 4.000V 0.0000A Test Set Up Power on all of test equipment -Connect PIF-UNION JIG or dummy battery to the DUT for training and service purposes 4. Trouble Shooting Trouble Test Set-up . -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 - 42 - Copyright © 2008 LG Electronics.
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LGE Internal Use Only 4. Inc. Trouble Shooting 4.1 RF Part Technical Brief 4.1.1 RF Part Component X400 U401 U400 U403 U402 ] Part Description SW400: Mobile Switch Connector U400: BT_CLK Buffer U401: SysCLK Buffer U402: RF Transceiver(B6PLD) U403: Power Amplifier Module(RPF09036B) FL400: Front End Module(LMSP43MA-501) X400:... C440 4.7u U403 RT9011-MMPQW 1 2 VIN 3 EN1 EN2 4 NC1 8 VOUT1 7 VOUT2 NC2 6 5 9 PGND GND C_VCCRF C441 4.7u Regulator Circuit Diagram Copyright © 2008 LG Electronics. All right reserved. Only for training and service purposes - 43 -
LGE Internal Use Only 4. Inc. Trouble Shooting 4.1 RF Part Technical Brief 4.1.1 RF Part Component X400 U401 U400 U403 U402 ] Part Description SW400: Mobile Switch Connector U400: BT_CLK Buffer U401: SysCLK Buffer U402: RF Transceiver(B6PLD) U403: Power Amplifier Module(RPF09036B) FL400: Front End Module(LMSP43MA-501) X400:... C440 4.7u U403 RT9011-MMPQW 1 2 VIN 3 EN1 EN2 4 NC1 8 VOUT1 7 VOUT2 NC2 6 5 9 PGND GND C_VCCRF C441 4.7u Regulator Circuit Diagram Copyright © 2008 LG Electronics. All right reserved. Only for training and service purposes - 43 -
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YES FEM Replace SW400 Check Control Signal C422, C424 YES Check FL400 NO Check U401,U402 C424 C422 C421 SW400 C413 RX RX RX LB_HB TX_ANT_SW_EN Copyright © 2008 LG Electronics. LGE Internal Use Only All right reserved. Trouble Shooting 4.2.1.3 Mobile Switch & PAM & FEM Circuit Mobile Switch SW400 between C413 and NO C421 Is short? Inc. Only for training and service purposes - 49 - 4.
YES FEM Replace SW400 Check Control Signal C422, C424 YES Check FL400 NO Check U401,U402 C424 C422 C421 SW400 C413 RX RX RX LB_HB TX_ANT_SW_EN Copyright © 2008 LG Electronics. LGE Internal Use Only All right reserved. Trouble Shooting 4.2.1.3 Mobile Switch & PAM & FEM Circuit Mobile Switch SW400 between C413 and NO C421 Is short? Inc. Only for training and service purposes - 49 - 4.
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Copyright © 2008 LG Electronics. 4. All right reserved. Only for training and service purposes Inc. Trouble Shooting 4.2.2.1 Mobile Switch & PAM & FEM Circuit Mobile Switch X400 U401 U403 U400 U402 FL400 SW400 SW401 between C413 and C421 Is short? YES FEM NO Replace SW400 Check Control Signal NO C422, C424 YES NO Check R403, R404 RF LEVEL ≥ 0dBm YES Re-download SW & CAL Check U401 Check U402 TX LB_HB TX_ANT_SW_EN TX LGE Internal Use Only - 52 -
Copyright © 2008 LG Electronics. 4. All right reserved. Only for training and service purposes Inc. Trouble Shooting 4.2.2.1 Mobile Switch & PAM & FEM Circuit Mobile Switch X400 U401 U403 U400 U402 FL400 SW400 SW401 between C413 and C421 Is short? YES FEM NO Replace SW400 Check Control Signal NO C422, C424 YES NO Check R403, R404 RF LEVEL ≥ 0dBm YES Re-download SW & CAL Check U401 Check U402 TX LB_HB TX_ANT_SW_EN TX LGE Internal Use Only - 52 -
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...)=Y 10.2 What's the Tx Calibration? 10.2.1 To make Tx Power Level transmitted properly following the information of Base Station GSM 5 Level Base Station 33 dBm Mobile Station Tx Cal = In this case, to make MS transmit 33dBm Copyright © 2008...
...)=Y 10.2 What's the Tx Calibration? 10.2.1 To make Tx Power Level transmitted properly following the information of Base Station GSM 5 Level Base Station 33 dBm Mobile Station Tx Cal = In this case, to make MS transmit 33dBm Copyright © 2008...