LG GM310 Скачать руководство пользователя страница 77 | Manualshive

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LGE Internal Use Only

Copyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

5. Trouble shooting

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Содержание GM310

Страница 1: ...Service Manual Model GM310 Internal Use Only Service Manual GM310 Date April 2009 Issue 1 0 ...

Страница 2: ...3 WCDMA Part 57 4 4 GSM Power Ampliﬁer Module 59 4 5 WCDMA Band1 8 Power Ampliﬁer Module 60 4 6 WCDMA Band1 8 Low Noise Ampliﬁer 61 4 7 WCDMA Band1 Duplexer 62 4 8 WCDMA Band5 Duplexer 63 5 Trouble shooting 64 5 1 Trouble shooting test setup 64 5 2 Power on trouble 65 5 3 Charging Trouble 68 5 4 USB Trouble 71 5 5 SIM Detect Trouble 73 5 6 Number Key Sense Trouble 75 5 7 Multi Key sense Trouble 77...

Страница 3: ... 4 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes ...

Страница 4: ...the equipment to prevent unauthorized use LGE does not warrant that this product is immune from the above case but will prevent unauthorized use of common carrier telecommunication service of facilities accessed through or connected to it LGE will not be responsible for any charges that result from such unauthorized use B Incidence of Harm If a telephone company determines that the equipment provi...

Страница 5: ... such as the following to the end user F Pictures The pictures in this manual are for illustrative purposes only your actual hardware may look slightly different G Interference and Attenuation An GM310 may interfere with sensitive laboratory equipment medical equipment etc Interference from unsuppressed engines or electric motors may cause problems H Electrostatic Sensitive Devices ATTENTION Board...

Страница 6: ... dBm dB relative to 1 milli watt DSP Digital Signal Processing EEPROM Electrical Erasable Programmable Read Only Memory EGPRS Enhanced General Packet Radio Service EL Electroluminescence ESD Electrostatic Discharge FPCB Flexible Printed Circuit Board GMSK Gaussian Minimum Shift Keying GPIB General Purpose Interface Bus GPRS General Packet Radio Service GSM Global System for Mobile Communications I...

Страница 7: ...ess Rating RMS Root Mean Square RTC Real Time Clock SAW Surface Acoustic Wave SIM Subscriber Identity Module SLR Sending Loudness Rating SRAM Static Random Access Memory STMR Side Tone Masking Rating TA Travel Adapter TDD Time Division Duplex TDMA Time Division Multiple Access UART Universal Asynchronous Receiver Transmitter VCO Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Comp...

Страница 8: ... AMR SIM Toolkit Class 1 2 3 A E Frequency Range GSM850 TX 824 849 MHz GSM850 RX 869 894 MHz EGSM900 TX 880 915 MHz EGSM900 RX 925 960 MHz DCS1800 TX 1710 1785 MHz DCS1800 RX 1805 1880 MHz PCS1900 TX 1850 1910 MHz PCS1900 RX 1930 1990 MHz WCDMA2100 TX 1920 1980 MHz WCDMA2100 RX 2110 2170 MHz WCDMA850 TX 824 849 MHz WCDMA850 RX 869 894 MHz Application Standard WAP 2 0 JAVA 2 0 2 2 Main Parts Soluti...

Страница 9: ...M 240min Power Level 7 Talk time WCDMA 180min Tx 12dBm Charging time 3 hours power OFF 900mAh Rx sensitivity GSM850 105 dBm EGSM900 105 dBm DCS1800 105 dBm PCS1900 105 dBm WCDMA2100 106 7 dBm WCDMA900 103 7 dBm GSM GPRS GSM850 33 dBm EGSM900 33 dBm DCS1800 30 dBm PCS1900 30 dBm Class4 GSM850 Class4 EGSM900 Class1 DCS Class1 PCS TX output power EDGE GSM850 27 dBm EGSM900 27 dBm DCS1800 26 dBm PCS19...

Страница 10: ...nal Use Only 2 PERFORMANCE GM310f service manual Ear Phone Jack 3 5pi 4 Pole Stereo PC synchronization Yes Speech coding FR EFR HR AMR Vibrator Built in Vibrator Blue Tooth V1 2 A2DP Voice Recording Yes Speaker Phone mode Support Yes Travel Adapter Yes CDROM No Stereo Headset Yes Data Cable No T Flash Yes ...

Страница 11: ... Transmitter Output power and Burst Timing GSM 5dBm 33dBm 3dB DCS PCS 0dBm 30dBm 3dB Burst Timing 3 69us Spectrum due to modulation out to less than 1800kHz offset 200kHz 36dBm 600kHz 51dBm 56dBm Spectrum due to modulation out to larger than 1800kHz offset to the edge of the transmit band GSM 1800 3000kHz 63dBc 46dBm 3000kHz 6000kHz 65dBc 46dBm 6000kHz 71dBc 46dBm DCS 1800 3000kHz 65dBc 51dBm 6000...

Страница 12: ...er 50 dBm 3 84 MHz Occupied Bandwidth 5 MHz at 3 84 Mcps 99 of power Adjacent Channel Leakage Power Ratio ACLR 33 dB 5 MHz 43 dB 10 MHz Spurious Emissions f fc 12 5 MHz 36 dBm 1 kHz RW 9 kHz f 150 kHz 36 dBm 10 kHz RW 150 KHz f 30 MHz 36 dBm 100 kHz RW 30 MHz f 1 GHz 30 dBm 1 MHz RW 1 GHz f 12 75 GHz 41 dBm 300 kHz RW 1893 5 MHz f 1919 6 MHz 67 dBm 100 kHz RW 925 MHz f 935 MHz 79 dBm 100 kHz RW 93...

Страница 13: ... MHz Ioac 52 dBm 3 84 MHz 5 MHz WCDMA900 Blocking Characteristic BER 0 001 when Îor 103 7 dBm 3 84 MHz WCDMA2100 when Îor 100 7 dBm 3 84 MHz WCDMA900 Iblocking 56 dBm 3 84 MHz Fuw offset 10 MHz or Iblocking 44 dBm 3 84 MHz Fuw offset 15 MHz Spurious Response BER 0 001 when Îor 103 7 dBm WCDMA2100 when Îor 100 7 dBm WCDMA900 3 84 MHz Iblocking 44 dBm Intermodulation BER 0 001 when Îor 103 7 dBm 3 8...

Страница 14: ...21 USB USB Audio Amp LM49150 LDO LDO Switch 3M Camera Mic Full speed USB High speed USB Main Keypad Sub Keypad Touch IC Touch IC FM Recording Navi Key RF Part GSM EDGE 850 900 1800 1900 EDGE PAM FEM Duplex UMTS PAM Transceiver PMB6952 26M UMTS 1900 or 2100 UMTS LNA Duplex UMTS 850 or 900 BaseBand Processor PMB8868 18Pin MMI Connector 18Pin MMI Connector RCV SPK RCV SPK 3 5Φ Ear phone Filter Filter...

Страница 15: ...port the FR EFR HR and AMR NB vocoding S GOLD3TM support multi slot operation modes HSCSD up to class 10 GPRS for high speed data application up to class 12 EGPRS up to class 12 and DTM class11 without additional external hardware 3 2 2 Block Description z Processing core ARM926EJ S 32 bit processor core for controller functions The ARM926EJ S includes an MMU and the Jazelle Java extension for Jav...

Страница 16: ...m The clock system allows widely independent selection of frequencies for the essential parts of the S GOLD3H LC Thus power consumption and performance can be optimized for each application z Functional Hardware block CPU and DSP Timers MOVE coprocessor performing motion estimation for video encoding algorithms H 263 MPEG 4 Programmable PLL with additional phase shifters for system clock generatio...

Страница 17: ...ce manual 3 2 3 RF Interface T_OUT S Gold3H LC uses this interface to control RF IC and Peripherals Table 3 2 3 1 RF Interface Spec T_OUT Resource Interconnection Description T_OUT0 TXON_PA PAM Power on T_OUT1 T_OUT2 ANT_SEL1 FEM control T_OUT3 T_OUT4 T_OUT5 T_OUT6 PA_MODE PAM Mode select T_OUT7 ANT_SEL2 FEM control T_OUT8 ANT_SEL3 FEM control T_OUT9 T_OUT10 ...

Страница 18: ...el This block operates charging process and other related process by reading battery voltage and other analog values Table 3 2 4 1 S Gold3 ADC channel usage ADC channel Resource Interconnection Description M0 BAT_ID Battery temperature measure M1 RF_TEMP RF block temperature measure kM2 N C M3 JACK_TYPE Accessory type detect M4 N C M5 N C M6 N C M7 H W VERSION H W version detect M8 VBAT Battery su...

Страница 19: ...tion KEY MATRIX KP_IN0 KEYIN0 KP_IN1 KEYIN1 KP_IN2 KEYIN2 KP_IN3 KEYIN3 KP_IN4 KEYIN4 KP_IN5 KEYIN05 KP_IN6 KEYOUT5 KP_OUT0 KEYOUT0 KP_OUT1 KEYOUT1 KP_OUT2 KEYOUT2 KP_OUT3 KEYOUT3 USIF1 USIF1_RXD_MRST UART_RX UART Data USIF1_TXD_MTSR UART_TX UART Data USIF1_RTS_N USB_ DAT_VP USB Data USIF1_CTS_N USB_SE0_VM USB Data USIF2 USIF2 _RXD_MRST TCC_PWRON Multimedia chip power on USIF2 _TXD_MTSR TCC_RESET ...

Страница 20: ...T2 CAM_MCLK Camera main clock CIF_PD CAM_PWR_EN Camera power down active high CIF_RESET CAM_RESET Camera reset LCD I F DIF_D0 LCD_D0 LCD data 0 DIF_D1 LCD_D1 LCD data 1 DIF_D2 LCD_D2 LCD data 2 DIF_D3 LCD_D3 LCD data 3 DIF_D4 LCD_D4 LCD data 4 DIF_D5 LCD_D5 LCD data 5 DIF_D6 LCD_D6 LCD data 6 DIF_D7 LCD_D7 LCD data 7 DIF_D8 DIF_ID LCD data 8 DIF_CS1 _LCD_CS1 LCD chip select EINT4 EXT_SPK_DETECT Ex...

Страница 21: ...umber Key LED enable GPIO_103 Not used External Memory GPIO_104 TOUCH_RESET Touch IC Reset GPIO_105 SDA_TOUCH Touch IC I2C Data GPIO_106 SCL_TOUCH Touch IC I2C Clock GPIO_39 TCC_MMC_DETECT Multimedia chip T flash detect GPIO_40 CAM_LDO_EN Camera LDO enable GPIO_41 TOUCH_WAKEUP Touch IC wakeup GPIO_22 TOUCH_INT Touch IC Interrupt GPIO_107 MOTOR_EN Vibrator enable GPIO_108 Not used IrDA GPIO_110 USB...

Страница 22: ...adset Mic VMICP VMIC_P Power for MIC VMICN GND Ground for MIC ADC M0 BAT_ID Battery temperature measure M1 RF_TEMP RF block temperature measure M2 M3 JACK_TYPE Accessory type detect M7 H W VERSION H W version detect M8 VBAT Battery supply voltage measure M9 M10 Reference VREF VREFN IREF GND with resistor JTAG I F JTAG0_TDO JTAG0_TDI JTAG0_TMS JTAG0_TCK JTAG0_TRST_n JTAG0_RTCK JTAG1_TDO JTAG1_TDI J...

Страница 23: ... TRACEPKT 7 Memory MEM_AD 0 DATA 0 MEM _AD 1 DATA 1 MEM _AD 2 DATA 2 MEM _AD 3 DATA 3 MEM _AD 4 DATA 4 MEM _AD 5 DATA 5 MEM _AD 6 DATA 6 MEM _AD 7 DATA 7 MEM _AD 8 DATA 8 MEM _AD 9 DATA 9 MEM _AD 10 DATA 10 MEM _AD 11 DATA 11 MEM _AD 12 DATA 12 MEM _AD 13 DATA 13 MEM _AD 14 DATA 14 MEM _AD 15 DATA 15 MEM _WR_n _WR MEM _RD_n _RD MEM _BC0_n _BC0 MEM _BC1_n _BC1 MEM _BC2_n LDQS MEM _BC3_n UDQS MEM _A...

Страница 24: ...15 MEM _A 16 ADD 16 MEM _A 17 ADD 17 MEM _A 18 ADD 18 MEM _A 19 ADD 19 MEM _A 20 ADD 20 MEM _A 21 ADD 21 MEM _A 22 ADD 22 MEM _A 23 ADD 23 MEM _A 24 ADD 24 MEM _A 25 ADD 25 MEM _A 26 ADD 26 MDM_SDA 11 ADD 27 MDM_SDA 12 ADD 28 MDM_SDA 13 ADD 29 MDM_SDA 14 ADD 30 MEM _CS0_n _NAND_CS INTEL NOR 64MB MEM _CS1_n _RAM_CS INTEL SDRAM 64MB MEM _CS2_n MEM _CS3_n _CS3 MEM _ADV_n ADV_A15 MEM _RAS_n _RAS MEM _...

Страница 25: ...ECT SD card detect T_OUT6 PA_MODE PAM T_OUT7 ANT_SEL2 T_OUT8 ANT_SEL3 GPIO_52 DSR CC1CC7IO JACK_DETECT Jack detect GPIO_54 TA_DETECT Charger detect GPIO_55 CHG_EN Charging enable RF I F RF_STR0 2G_EN CC1CC5IO _PPR Charger detect RF_DATA 2G_DATA RF_CLK 2G_CLK RF_LOCK_DET 3G_LD MASTER_ON 3G_MASTER_ON PA_MODE 3G_PA_MODE1 FEM_CTRL 0 ANT_SEL4 FEM_CTRL 1 ANT_SEL5 FEM_CTRL 2 ANT_SEL6 System Port AFC AFC ...

Страница 26: ...ons except for the RF PA for a complete advanced GSM Edge smart phone minimizing external device count Block Description Highly efficient step down converter for main digital baseband supply including Core DSP and memory interface External Bus Unit Support of S GOLD standby power down concept Low drop out LDO regulators for Flash and mobile RAM memory devices Voltage independent switching of two S...

Страница 27: ... for E GOLD or S GOLDlite baseband devices For S GOLD two linear regulators for DSP and Core are cascaded after the SDBB SM POWER supports the standby power down concept of S GOLD by temporarily switching off the linear regulator for the DSP during mobile standby whenever this subsystem is not used In this phase the ARM controller and most peripherals including parts of the on chip SRAM are kept p...

Страница 28: ... and with soft turn on and off by PWM dimming two driver outputs for single LEDs for precharge indication and signaling with i e change of colour driver for Vibra Motor with adjustable voltages soft startup shutdown and current limitation SMPOWER offers several control functions Power on Reset Generator with logic state machine I2C bus interface I2C bus configurable mode control logic with ON push...

Страница 29: ... 2 C217 C230 4 7u C212 1u u 2 2 O I V _ 2 6 V 2 8 3 2 C 4 3 2 C T A B V u 2 2 K 7 4 3 0 2 R u 1 0 1 1 2 C n T S R M P B S U V 2 2 2 C u 0 1 3 0 2 B F D S _ 8 V 1 VSS30 VSS4 D6 D7 VSS5 VSS6 D8 VSS7 E4 VSS8 E5 E6 VSS9 C7 VSS_MONO VSS_SD1 H8 H4 VSS_SD2 D9 VSS_VREF 1 1 J S T M U V A4 VUSB B I V V 1 1 F WDOG L3 F6 F7 VSS17 VSS18 F8 F9 VSS19 D4 VSS2 VSS20 G3 G4 VSS21 VSS22 G5 VSS23 G6 G7 VSS24 VSS25 G8 ...

Страница 30: ...ery alarm interval a Idle 3 min b Dedicated 1 min 11 Switch off voltage 3 31 V 12 Charging temperature adc range a 20 low charging voltage operation 3 6 V 3 9 V b 20 60 standard charging up to 4 2 V c 60 low charging voltage operation 3 6V 3 9V Figure 3 3 2 1 Charging IC ISL9221 C I G N I G R A H C A m 0 0 6 A m 7 1 1 1 1 A m 8 7 3 1 u 1 0 6 2 C u 1 1 6 2 C G H C V _ B S U 1 3 2 R K 8 1 7 5 2 C u ...

Страница 31: ...pyright 2009 LG Electronics Inc All right reserved 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 ...

Страница 32: ... 33 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 BB Circuit Technical brief GM310f service manual Figure 3 3 2 2 Charging Profile ...

Страница 33: ... is a power on input for SM POWER3 with active low levels n O r e w o P e t o m e R 1 0 2 R K 0 0 1 M 3 3 8 0 2 R K 0 0 1 0 2 2 R E 5 7 0 4 C T K 2 3 1 2 0 2 Q C T R _ 1 1 V 2 E 5 7 0 4 C T K 1 0 2 Q 2 3 1 4 0 2 R M 3 3 K 0 1 7 1 2 R I N D 8 1 2 R 2 3 1 3 0 2 Q E 5 7 0 4 C T K 6 0 2 C u 2 2 K 0 1 9 1 2 R 6 1 2 R K 0 0 1 0 5 0 2 R N O R W P B B D _ N O R W P R N I _ Y E K _ D N E Y E K _ D N E 0 N ...

Страница 34: ...CLK SIM_RST ports are used to communicate with S Gold3H LC and the SIM power supply enabled by PMIC 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 C C V 1 5 P P V 2 0 1 J 3 K L C D N G 4 7 1 D N G 2 D N G 8 6 O _ I T S R 2 I N D 4 1 1 C 7 1 1 C p 7 2 6 1 1 C u 1 p 7 2 5 1 1 C R117 4 7K M I S V _ 9 V 2 T ...

Страница 35: ...sing a dedicated eight pin connector Figure 3 6 1 Micro SD Connector O I V _ 2 6 V 2 7 4 8 0 1 R R104 DNI 4 0 1 C u 1 I N D 5 0 1 C 7 0 1 R 0 3 DNI R103 DNI R105 E M M V _ 9 V 2 DNI R102 6 0 1 C p 0 0 0 1 DNI R106 S C _ 3 T A D _ D C K L C S _ K L C I D _ D M C N O M M O C O D _ 0 T A D V S R _ 1 T A D V S R _ 2 T A D T C E T E D 1 Y M M U D 2 Y M M U D D D V S S V 2 0 1 0 B 1 A H C S 1 0 1 S R111...

Страница 36: ... 1 G 7 2 C N 8 2 C N 3 H 4 H 9 2 C N 3 C N 3 A 0 3 C N 5 H 6 H 1 3 C N 2 3 C N 7 H 8 H 3 3 C N 4 3 C N 9 H 5 3 C N 1 1 H 9 O I 1 1 N 6 K M Q D L 6 L S Q D L 1 C N 1 A 0 1 B 0 1 C N 1 1 C N 1 1 B 2 1 B 2 1 C N 3 1 C N 1 C 2 C 4 1 C N 5 1 C N 3 C 6 1 C N 1 1 C 2 1 C 7 1 C N 8 1 C N 1 D 2 D 9 1 C N 2 A 2 C N 0 2 C N 3 D 9 Q D 7 N 1 O I 0 1 P 0 1 O I 1 1 M 1 1 O I 1 1 L 2 1 O I 1 1 K 3 1 O I 1 1 G 4 1...

Страница 37: ... 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 3 0 3 1 3 2 3 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 1 0 1 N C 0 0 0 2 E S 5 3 2 3 0 F G ZD101 T C T _ P 1 2 5 0 P M A L C R T C T _ P 1 2 5 0 P M A L C R ZD102 ZD103 T C T _ P 1 2 5 0 P M A L C R D C L V _ 5 8 V 2 10K R107 D C L V _ 5 8 V 2 u 1 6 0 1 C D R _ D C L T E S E R _ D C L _ 1 S C _ D C L _ R W _ D C L _ 1 D E L M D E L M 0 D _ D C L 1 D _ D C ...

Страница 38: ...y circuit diagram Figure 3 9 2 Number key circuit diagram Y E K T F O S E N O _ T F O S VA115 EVLC5S02100 VA114 EVLC5S02100 O W T _ T F O S 6 1 1 A V 0 0 1 2 0 S 5 C L V E 7 1 1 A V 0 0 1 2 0 S 5 C L V E K O 3 T U O Y E K KEYIN5 0 T U O Y E K KEYIN4 Y E K H C U O T 1 0 N W O D 1 0 P U T H G I R P U T F E L N W O D 1 N E S _ H C U O T 0 N E S _ H C U O T 3 N E S _ H C U O T 2 N E S _ H C U O T D A ...

Страница 39: ... white color LEDs on Key for keypad illumination Keypad Back light is controlled by SM Power3 Flash LED port which has constant current control function The whole configuration of the SM 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 T H G I L K C A B Y E K 7 0 1 C u 1 0 T A B V m h o 0 0 1 1 0...

Страница 40: ...0 1 R 2 0 1 Q E 5 7 0 4 C T K 4 0 1 R K 2 2 K 2 2 2 0 1 R 1 0 1 R K 2 2 T A B V K 1 9 0 1 R L H 4 0 1 H W T C S S LD104 2 1 1 R K 0 1 E 5 7 0 4 C T K 1 0 1 Q LD102 L H 4 0 1 H W T C S S L H 4 0 1 H W T C S S LD101 K 0 1 3 1 1 R 3 L B 1 L B F F W R LD105 L H 4 0 1 H W T C S S L H 4 0 1 H W T C S S LD106 K 1 1 1 1 R E 5 7 0 4 C T K 3 0 1 Q K 7 2 5 0 1 R 4 1 1 R K 0 1 6 0 1 R K 7 2 T A B V 2 L B 2 0 ...

Страница 41: ...nitor S Gold3H LC is monitor battery capacity with ADC port Figure3 12 1 Battery voltage monitor circuit diagram N O I S R E V _ B C P 1 1 1 K 0 0 1 2 0 1 R m h o 0 0 0 4 2 3 0 1 R K 0 9 3 1 0 1 R T A B V 4 P 1 _ 1 T U O A P 8 M 2 _ 1 T U O A P 4 M 5 M 3 E 3 D 6 M 7 M 4 E 8 M 2 D 4 D 9 M 0 M 3 F 4 G 1 M 0 1 M 5 F 2 M 2 E 1 D 3 M 4 F P M E T _ F R E P Y T _ K C A J L E V E L _ A P D I _ T A B ...

Страница 42: ...anual 3 13 Audio GM310 Audio signal flow diagram as following diagram Stereo path Differential path S Gold3H TCC 3 5pi SW Radio SPK Sub system CAP CAP ROUT LOUT RHPOUT LHPOUT 18PIN Ext SPK I2S path Stereo path Differential path S Gold3H TCC 3 5pi SW Radio SPK Sub system CAP CAP ROUT LOUT RHPOUT LHPOUT 18PIN Ext SPK I2S path Figure 3 13 1 Audio signal flow diagram ...

Страница 43: ...4 C 3 4 4 C u 2 2 T A B V 8 0 4 C u 1 0 n 0 2 2 6 3 4 C u 5 1 0 0 2 3 4 C 9 3 4 C 8 3 4 C u 1 0 u 0 1 B4 2 D O D L _ O V C4 VSSCP CIN CIP D4 A2 GND GND_CP E4 D D V C 2 I 1 A 1 C N I L T U O L 3 E O N O M 4 A O N O M 3 A N I _ O N O M 1 E 1 D N I _ O N O M 2 C T U O R N I R 2 E L C S 3 B 2 B A D S B1 VDDA VDDLS 3 0 4 U X L T 0 5 1 9 4 M L S S A P Y B 3 C D3 0 3 4 C u 1 1 3 4 C u 1 n 0 2 2 7 3 4 C u...

Страница 44: ... M 1 T S I S S A R _ 1 M T C E T E D _ 3 M L _ 4 M C I M _ 5 M D N G _ 6 M 1 0 1 J p 0 2 1 7 0 1 C 1 0 1 B F 9 0 1 C VA104 0 0 1 2 0 S 5 C L V E n 2 2 H n 0 0 1 5 1 1 R B D U A V _ 5 V 2 3 0 1 L K 5 1 2 1 1 C p 0 6 5 p 0 0 0 1 9 9 1 C 2 0 1 C p 0 7 2 0 0 1 2 0 S 5 C L V E VA101 7 4 3 1 1 R C101 24p L101 100nH H n 0 0 1 9 9 1 L R101 200K K 2 2 6 1 1 R 2 0 1 B F 0 9 9 1 R R110 10K G 2 T 2 Q S 0 0 2 ...

Страница 45: ...M C P 4 C N Y S _ M C P 33 RST_N 0 M T 4 1 S T C _ T R A U 1 1 S T R _ T R A U 8 D X R _ T R A U 9 D X T _ T R A U 0 1 L F A V 6 1 R F A V 5 1 1 D N G 1 2 4 0 1 D N G 2 D N G 5 3 D N G 7 4 D N G 2 1 0 2 5 D N G 1 3 6 D N G 7 D N G 9 3 0 4 8 D N G 9 D N G 1 4 21 GPIO0 GPIO1 17 22 GPIO5 7 2 6 O I P G K L C _ C 2 I 9 2 A T A D _ C 2 I 6 2 D S _ 8 V 1 1 0 2 M A 1 6 5 B A C B R T N A _ T B 6 T N A _ M ...

Страница 46: ...h all data packet types and length supported Allows direct connect to lithium batteries Improved Bluetooth transport with 4Mbuad UART Includes numerous enhancements for lower power dissipation Full support for power saving modes Bluetooth clock request Bluetooth standard park hold and sniff Deep sleep modes and software regulator shutdown APPLICATIONS Mobile handsets and smart phones Personal digi...

Страница 47: ...nternal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 3 BB Circuit Technical brief GM310f service manual Figure 3 14 1 2 Bluetooth Block Diagram 26 MH 32 KH ...

Страница 48: ...dio antenna Audio ground 2 Not used 3 JACK_TYPE Accessory type detect 4 L_OUT External Speaker Left sound 5 R_OUT External Speaker Right sound 6 USB_DP USB DP 7 USB_DM USB DM 8 EXT_SPK_DETECT External Speaker Detect active low 9 VBAT Battery voltage 10 VABT Battery voltage 11 RPWRON_EN Remote power on active high 2 8V 12 VCHG Charger voltage 13 VCHG Charger voltage 14 DSR DSR 15 USB_VCHG USB VBUS ...

Страница 49: ...X 1800 1900MHz PMB8877 S GOLD3 PA_LEVEL I IX Q QX PA_BAND TXON_PA VC2 VC3 AFC RF_EN RF_DA RF_CLK PA_LEVEL PA_BAND TXON_PA MODE 3 Wire Bus interface 26MHz_MCLK BT_CLK Decoder ANT_SW 1 ANT_SW2 RF Control Unit GSM Timer Unit 26MHz VCTCXO 26MHz_MCLK RF2 8V VBAT PA Control Hardware TX 900MHz 3G DUPLEXER Rx RF SAW 3G LNA Rx RF SAW Rx Tx PA_EN PA_MODE TXI TXIX TXQ TXQX EN DATA CLK PMB6272 SMARTi PM TQM7M...

Страница 50: ...es To avoid interference between the 2 5G and 3G transceivers simultaneous operation of SMARTiPM and SMARTi3G is not permitted Figure 4 1 2 RF Functional Block Diagram S G S I IX Q QX FSYSIN_PM RX1 RX1X 850MHz RX2 RX2X 900MHz RX3 RX3X 1800MHz RX4 RX4X 1900MHz TX1 850 900MHz TX2 1800 1900MHz VBIAS FSYSOUT1 EN_PM DATA_PM CLK_PM FSYSOUT2 FSYSOUT3 VCO_RC 2 7 2 95V Supply 1 4 1 6V Supply fast PFD Integ...

Страница 51: ..._ A P _ X T A 1 1 E A C A D _ A P _ X T A C A D _ A G V _ X T A 1 1 D A I _ B B 5 L X I _ B B 5 M Q _ B B 4 M X Q _ B B 5 P 6 W C F A F E R I A 2 1 D A I _ N X R A 6 1 E A 7 1 E A Q _ N X R A 5 1 D A I _ P X R A Q _ P X R A 7 1 D A I _ N X T A 3 1 D A 4 1 D A Q _ N X T A 3 1 E A I _ P X T A 4 1 E A Q _ P X T A 2 1 E A T C E T E D _ A T R P P _ N E _ G 2 A T A D _ G 2 T C E T E D _ C M M L R T C _ ...

Страница 52: ...s performed by low high band quadrature direct down conversion mixers The baseband chain contains a LNB low noise buffer channel filter output buffer and DC offset compensation The 3rd order lowpass filter is fully integrated and provides sufficient suppression of blocking signals as well as adjacent channel interferers and avoids anti aliasing through the baseband ADC The receive path is fully di...

Страница 53: ...modulation data rectangular I Q coordinates is converted to digital data stream and is subsequently transformed to polar coordinates by means of a CORDIC algorithm The resulting amplitude information is fed into a digital multiplier for power ramping and level control The ready processed amplitude signal is applied to a DAC followed by a low pass filter which reconstructs the analog amplitude info...

Страница 54: ...w the transfer of the phase modulation The loop bandwidth is automatically adjusted prior to each slot OLGA To overcome the statistical spread of the loopfilter element values an automatic loopfilter adjustment ALFA is performed before each synthesizer startup The fully integrated quad band VCO is designed for the four GSM bands 850 900 1800 1900 MHz and operates at double or four times transmit o...

Страница 55: ...0 5 8 M S G 3 1 2 X R _ 0 5 8 M S G 9 X T _ S C P _ N C P 1 X R _ N C P 6 1 2 X R _ N C P 7 1 1 X R _ S C P 8 1 9 1 2 X R _ S C P VDD 7 2 2 0 0 9 1 _ A M D C W 0 0 1 2 _ A M D C W 0 2 0 5 8 _ A M D C W 1 2 2 T N A CTRL1 3 CTRL2 4 5 CTRL3 6 CTRL4 1 X R _ M S G E 4 1 5 1 2 X R _ M S G E 1 1 D N G 8 2 D N G 0 1 3 D N G 1 0 0 1 L F 7 1 0 5 D 6 5 0 1 C 1 1 A 2 A 5 1 B 2 6 2 B 4 D N G 8 C C V 1 Y 7 2 Y ...

Страница 56: ...ol PGC controlled by 3 wire bus programming and gain setting unit on chip allpass filter auto calibrated configurable output drivers programmable DC voltages and driver currents for different load impedances RX Front End An external low noise amplifier as well as duplex and inter stage filters are needed to form a complete receive chain for each band Baseband Processing analog The amplified RF sig...

Страница 57: ...nal is available at the differential outputs TXOUTH TXOUTHX TXOUTM TXOUTMX and TXOUTL TXOUTLX The modulator supply voltage must also be applied to these open drain differential outputs TX Output Power The voltage at the VGA control pin TXGC VGC should be limited to ensure that the specified maximum output power minimum Poutmax is not exceeded The VGC value at which the specified minimum Poutmax is...

Страница 58: ... M S G 0 1 T C E L E S _ E D O M 2 5 1 D N G P 6 N E _ X T T T A B V 4 P M A R V 5 3 0 0 1 U 5 0 0 5 M 7 M Q T 3 S B 1 P A C _ Y B 3 1 9 2 P A C _ Y B N I _ S C P _ S C D 1 T U O _ S C P _ S C D 2 1 1 D N G 4 1 1 1 2 D N G 8 u 1 0 0 0 6 0 1 C u 1 0 0 1 6 0 1 C p 6 1 5 0 1 C 2 6 0 1 C p 7 4 T A B V K 0 1 4 1 0 1 R 4 4 0 1 C u 3 3 p 3 3 6 5 0 1 C 0 5 0 1 C p 7 2 H n 9 3 5 5 0 1 C 8 5 0 1 C H n 2 2 H...

Страница 59: ...iption 4 2 2 6 T W A 8 1 C B m m 5 1 h t g n e l e n i L 4 n i P o t 1 1 n i P 2 2 2 6 T W A 5 1 C B p 0 0 0 1 8 8 0 1 C 2 D N G 3 D N G 4 1 5 1 D N G P L L E C _ N I F R 2 T M I _ N I F R 6 3 1 L L E C _ T U O F R 8 T M I _ T U O F R T T A B V 4 2 1 C C V A C C V 1 1 1 L L E C _ N E V 7 T M I _ N E V 1 E D O M V 3 5 2 E D O M V 7 0 0 1 U R 2 2 2 6 T W A 1 D N G 9 0 1 p 0 1 1 9 0 1 C 9 8 0 1 C p 0...

Страница 60: ...CDMA Band1 LNA BGA735 Table 4 6 1 BGA735 Pin description 2 7 0 1 C F R V _ 5 8 V 2 u 1 0 H n 7 4 0 9 0 1 L RFGNDH1 RFGNDH2 5 8 1 M D N G F R 2 M D N G F R 9 H N I F R 7 10 RFINL 6 M N I F R 5 1 H T U O F R 4 1 L T U O F R M T U O F R 6 1 RREF 13 VCC 3 12 VEN1 VEN2 11 VGS 2 5 3 7 A G B 6 0 6 U 1 NC 7 1 D N G P 4 p 3 5 9 0 1 C 6 1 0 1 L H n 1 9 K 7 2 9 1 0 1 R 3 0 1 1 C I N D 8 9 0 1 C p 2 2 3G_LNA_...

Страница 61: ...e purposes 4 RF Circuit Technical Brief 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 1 D N G 2 D N G 4 D N G 3 D N G 5 D N G 6 D N G X R X T 6 4 6 7 B 4 0 0 1 L F T N A I N D 0 8 0 1 C 6 7 0 1 C H n 7 4 p 7 2 5 7 0 1 C ...

Страница 62: ...it Technical Brief 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 8 3 6 7 B 5 C B 7 6 6 7 B 8 C B 9 0 1 1 C I N D H n 3 3 5 0 1 1 C p 8 1 4 0 1 1 C 1 D N G 2 D N G 4 D N G 3 D N G 5 D N G 6 D N G X R X T 8 3 6 7 B 7 0 0 1 L F T N A ...

Страница 63: ... shooting 5 Trouble shooting GM310f service manual 5 1 Trouble shooting test setup Equipment setup Power on all of test equipment Connect PIF UNION JIG or dummy battery to the DUT for power up Connect mobile switch cable between Communication test set and DUT when you need to make a phone call Follow trouble shooting procedure ...

Страница 64: ... 65 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 2 Power on trouble ...

Страница 65: ...S K 2 3 C S O 6 D F E R I 5 J K 2 3 F 5 D K 2 3 K L C 1 B N E _ O X C V _ T B K 2 3 K L C T E S E R _ T U O _ C T R N E _ O X C V _ M P N F E R V 4 2 T F D 4 1 Z S 7 1 L N 2 3 D N G C C V 5 2 0 0 1 U 0 8 0 0 1 R K 1 6 0 0 1 R p 0 0 0 1 2 2 0 1 C F R V _ 5 8 V 2 u 2 2 1 2 0 1 C K 0 0 1 9 0 0 1 R Z H M 6 2 1 T U O S Y S F K L C _ T B n O r e w o P e t o m e R 1 0 2 R K 0 0 1 M 3 3 8 0 2 R E 5 7 0 4 ...

Страница 66: ... 67 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting ...

Страница 67: ... 68 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 5 Trouble shooting 5 3 Charging Trouble ...

Страница 68: ...1 1 0 3 2 R K 0 0 1 7 2 2 R O I V _ 2 6 V 2 9 2 2 R 9 C D V I D N G P 3 1 P Y B _ B S U 0 1 1 C D V 2 1 P Y B _ C D V B S U V 2 4 G H C _ 5 N E _ R P P _ 3 G H C V K 7 4 1 2 2 9 L S I 4 0 2 U 1 1 T A B D N G 8 N I M I 6 7 B S U I u 1 9 5 2 C C T R _ 1 1 V 2 K 0 0 1 8 2 2 R T A B V R P P _ B S U V _ P V O G H C V _ P V O N E _ G H C C O E _ 0 1 2 R K 7 4 4 0 2 C u 1 6 0 2 R K 7 4 1 0 2 D V 1 3 3 R ...

Страница 69: ... 70 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 5 Trouble shooting ...

Страница 70: ... 71 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 4 USB Trouble ...

Страница 71: ...1 0 3 2 R K 0 0 1 7 2 2 R O I V _ 2 6 V 2 9 2 2 R 9 C D V I D N G P 3 1 P Y B _ B S U 0 1 1 C D V 2 1 P Y B _ C D V B S U V 2 4 G H C _ 5 N E _ R P P _ 3 G H C V K 7 4 1 2 2 9 L S I 4 0 2 U 1 1 T A B D N G 8 N I M I 6 7 B S U I u 1 9 5 2 C C T R _ 1 1 V 2 K 0 0 1 8 2 2 R T A B V R P P _ B S U V _ P V O G H C V _ P V O N E _ G H C C O E _ 0 1 2 R K 7 4 4 0 2 C u 1 6 0 2 R K 7 4 1 0 2 D V 1 3 3 R D ...

Страница 72: ... 73 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 5 SIM Detect Trouble ...

Страница 73: ...D N G 8 6 O _ I T S R 2 I N D 4 1 1 C 7 1 1 C p 7 2 6 1 1 C u 1 p 7 2 5 1 1 C R117 4 7K M I S V _ 9 V 2 T S R _ M I S K L C _ M I S O I _ M I S 7 3 2 C u 2 2 6 3 2 C u 2 2 9 3 2 C u 2 2 C T R _ 1 1 V 2 5 3 2 C u 2 2 D S _ 8 V 1 T B V _ 5 8 V 2 0 4 2 C u 2 2 F R V _ 5 V 1 3 3 2 C u 1 M I S V _ 9 V 2 F R V _ 5 8 V 2 u 2 2 8 3 2 C 4 3 2 C u 2 2 E M M V _ 9 V 2 F R V _ 7 V 2 TP2 TP2 J102 TP1 ...

Страница 74: ... 75 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 6 Number Key Sense Trouble ...

Страница 75: ...FL102 ICVE10184E150R500FR 1 G 5 2 G 0 1 INOUT_A1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 INOUT_B2 8 7 INOUT_B3 INOUT_B4 6 5 1 G 0 1 2 G 1 INOUT_A1 INOUT_A2 2 3 INOUT_A3 INOUT_A4 4 INOUT_B1 9 8 INOUT_B2 INOUT_B3 7 6 INOUT_B4 ICVE10184E150R500FR FL101 R115 51 51 R114 R116 51 KP_IN0 P15 KP_IN1 KP_IN2 U17 KP_IN3 R15 T17 KP_IN4 KP_IN5 U18 R17 KP_IN6 U16 KP_OUT0 KP_OUT1 V17 AA19 KP_OUT2 KP_OUT3 U1...

Страница 76: ... 77 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 7 Multi Key sense Trouble ...

Страница 77: ... C U O T 3 N E S _ H C U O T 2 N E S _ H C U O T FL102 ICVE10184E150R500FR 1 G 5 2 G 0 1 INOUT_A1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 INOUT_B2 8 7 INOUT_B3 INOUT_B4 6 5 1 G 0 1 2 G 1 INOUT_A1 INOUT_A2 2 3 INOUT_A3 INOUT_A4 4 INOUT_B1 9 8 INOUT_B2 INOUT_B3 7 6 INOUT_B4 ICVE10184E150R500FR FL101 R115 51 51 R114 R116 51 KP_IN0 P15 KP_IN1 KP_IN2 U17 KP_IN3 R15 T17 KP_IN4 KP_IN5 U18 R17 KP_IN...

Страница 78: ... 79 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 8 Keypad backlight Trouble ...

Страница 79: ...1 C u 1 0 T A B V m h o 0 0 1 1 0 1 R 2 0 1 D L 1 0 1 D L m h o 0 0 1 2 0 1 R D E L _ Y E K _ N I A M TP2 I2S2_WA0 I2S2_WA1 U3 C2 I2RF_DATA I2RF_SCLK C1 I2RF_STR0 B2 I2S1_RX W2 I2S1_TX W3 Y2 I2S1_WA0 I2S2_CLK0 U1 U5 I2S2_CLK1 I2S2_RX W1 V2 I2S2_TX U2 FM_ANT_SEL DBB_BT_INT 3G_EN 3G_CLK 3G_DATA TCC_INT BT_INT BT_RESETn MAIN_KEY_EN BT_PCM_RX BT_PCM_TX BT_PCM_SYNC TP1 ...

Страница 80: ... 81 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 9 Micro SD Trouble ...

Страница 81: ...D 5 0 1 C 7 0 1 R 0 3 DNI R103 DNI R105 E M M V _ 9 V 2 DNI R102 6 0 1 C p 0 0 0 1 DNI R106 S C _ 3 T A D _ D C K L C S _ K L C I D _ D M C N O M M O C O D _ 0 T A D V S R _ 1 T A D V S R _ 2 T A D T C E T E D 1 Y M M U D 2 Y M M U D D D V S S V 2 0 1 0 B 1 A H C S 1 0 1 S R111 100K T C E T E D _ C M M 3 D _ C M M K L C _ C M M D M C _ C M M 0 D _ C M M 1 D _ C M M 2 D _ C M M TP1 TP1 S101 ...

Страница 82: ... 83 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 10 Audio Trouble 5 10 1 Receiver path ...

Страница 83: ...3 4 C u 1 n 0 2 2 7 3 4 C u 5 1 0 0 u 2 2 3 3 4 C 2 4 4 C u 2 2 5 4 4 C L _ T U O _ O I D A R R _ T U O _ O I D A R L _ T U O _ S H P _ V C R _ K P S N _ V C R _ K P S R _ T U O _ S H L C S A D S P _ R A E N _ R A E T U O R T U O L O I V _ 2 6 V 2 9 0 3 C u 1 D C L V _ 5 8 V 2 0 2 0 3 L u 1 0 1 3 C 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 5 6 0 6 7 8 9 5 3 6 3 7 3 8 3 9 3 4 0 4 1 4 2 4 3 4 4 4 5 4 ...

Страница 84: ... 85 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 10 2 Voice path for headset ...

Страница 85: ... 0 0 1 2 0 S 5 C L V E VA101 C101 24p L101 100nH H n 0 0 1 9 9 1 L R101 200K 2 0 1 B F 0 9 9 1 R R110 10K FB103 p 0 7 2 3 0 1 C D N G _ R A E D N G _ R A E T C E T E D _ K C A J T N A _ M F R _ 5 3 _ S H L _ 5 3 _ S H W S e c i o V I D I M S H u 0 2 2 9 1 1 C O I V _ 2 6 V 2 H n 0 0 1 5 0 1 L 0 2 1 C p 7 2 0 2 1 R K 0 0 1 R119 47K H n 0 0 1 4 0 1 L 2 2 1 C u 1 8 1 1 C u 0 2 2 1 A 2 5 2 0 B 2 3 1 B...

Страница 86: ... 87 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 11 Microphone Trouble 5 11 1 Microphone for main MIC ...

Страница 87: ...nly for training and service purposes 5 Trouble shooting H n 0 0 1 1 0 1 L 2 2u C101 6 0 1 C p 9 3 u 1 0 3 0 1 C p 9 3 5 0 1 C 2 1 G 3 2 G 4 O 1 P B P H 5 R H 0 1 4 0 U P S 1 0 1 C I M P _ C I M V u 1 0 4 0 1 C D N G _ C I M V N _ C I M _ N I A M P _ C I M _ N I A M D N G _ C I M V ...

Страница 88: ... 89 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 11 1 Microphone for headset ...

Страница 89: ...ng p 0 6 5 8 0 1 C K 0 2 2 4 1 1 R 3 1 1 C u 0 1 n 2 2 1 1 1 C 0 1 1 C p 0 1 2 1 1 R M 1 p 0 2 1 7 0 1 C 9 0 1 C n 2 2 5 1 1 R B D U A V _ 5 V 2 K 5 1 2 1 1 C p 0 6 5 7 4 3 1 1 R K 2 2 6 1 1 R G 2 T 2 Q S 0 0 2 2 S C N 1 0 1 U 2 D N G T U O 1 5 C C V 3 N I V N I V 4 O I V _ 2 6 V 2 T C E T E D _ K O O H N _ C I M _ S H P _ C I M _ S H ...

Страница 90: ... 91 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 12 Camera Trouble ...

Страница 91: ...I 4 B _ T U O N I 6 3 0 4 L F R F 1 0 1 R 0 5 0 E 4 8 1 0 1 E V C I G1 5 G2 10 1 A _ T U O N I 1 2 2 A _ T U O N I 3 A _ T U O N I 3 4 4 A _ T U O N I 9 u 1 0 7 0 4 C M A C _ 8 V 2 G2 10 1 1 A _ T U O N I 2 A _ T U O N I 2 3 3 A _ T U O N I 4 A _ T U O N I 4 1 B _ T U O N I 9 8 2 B _ T U O N I 3 B _ T U O N I 7 6 4 B _ T U O N I R F 1 0 1 R 0 5 0 E 4 8 1 0 1 E V C I 1 0 4 L F 5 G1 R F 0 0 5 Y 0 0 ...

Страница 92: ... 93 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 13 Main LCD Trouble ...

Страница 93: ...hooting 1608 1608 1608 7 3 2 C u 2 2 6 3 2 C u 2 2 9 3 2 C u 2 2 C T R _ 1 1 V 2 5 3 2 C u 2 2 D S _ 8 V 1 E R O C _ 5 3 V 1 T B V _ 5 8 V 2 C220 10u 0 4 2 C u 2 2 F R V _ 5 V 1 u 1 1 3 2 C 3 3 2 C u 1 C216 10u M I S V _ 9 V 2 10u F R V _ 5 8 V 2 D C L V _ 5 8 V 2 C217 u 2 2 8 3 2 C 4 3 2 C u 2 2 E M M V _ 9 V 2 F R V _ 7 V 2 TP1 ...

Страница 94: ... 95 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting 5 14 Bluetooth Trouble ...

Страница 95: ...RF Test 2 Insert a phone in a TEMCELL in case of radiation test 3 Set discover after push menu button of the tester and select the link analyzer 4 After set test mode confirm the connection state 5 Measure the power of full channel after hopping mode is selected to ON 6 You can select wanted test cases after getting an optimized power 7 Blue tooth Off 1 MenuÆsettingÆ5 ConnectivityÆ1 BluetoothÆ1 Tu...

Страница 96: ..._ T B 6 T N A _ M F 2 3 2 4 2 C u 1 0 0 2 6 2 C I N D 4 6 2 C TP212 u 2 2 D S _ 8 V 1 FB205 3 4 2 C u 1 0 0 T A B V O I V _ 2 6 V 2 0 0 5 2 R 3 6 2 C I N D D S _ 8 V 1 R235 0 p 0 0 1 6 4 2 C 5 N E D N G 4 7 1 C C V _ O I 2 C C V _ O I 6 2 1 L V _ O I 3 2 L V _ O I C C V 8 L V 1 G A T U M 3 7 3 3 X S L N 3 0 2 U I N D 4 2 2 R H n 1 5 4 2 C p 2 2 5 5 2 C 1 R234 3 0 2 L A N p 0 0 1 6 5 2 C 0 1 2 P T ...

Страница 97: ...ector SW1001 Tx SAW Filter WCDMA900 FL1006 LNA WCDMA2100 900 U606 Tx SAW Filter WCDMA2100 FL1003 Buffer U1002 Rx SAW Filter WCDMA900 FL1005 SAW Duplexer WCDMA900 FL1007 Rx SAW Filter WCDMA2100 FL1002 SAW Duplexer WCDMA2100 FL1004 VCTCXO 26MHz X1001 FEM FL1001 PAM WCDMA2100 900 U1007 RF SWITCH SW100 RF Transceiver U1004 PAM GSM850 GSM900 1800 1900 U1003 Description Reference Description Reference R...

Страница 98: ... 5 Trouble shooting GM310f service manual 5 16 1 UMTS PATH W2100 path W900 path 5 16 2 GSM PATH W2100 Tx Path W2100 Rx Path W2100 Tx Rx Path W900 Tx Path W900 Rx Path W900 Tx Rx Path DCS1800 PCS1900 Tx Path GSM850 900 DCS1800 PCS1900 Rx Path GSM850 900 DCS1800 PCS1900 Tx Rx Path GSM850 900 Tx Path 5 16 RF SIGNAL PATH ...

Страница 99: ... 100 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 5 Trouble shooting 5 17 Trouble Shoothing of GSM Part ...

Страница 100: ...E Internal Use Only 5 Trouble shooting 6 1 0 1 R 0 2 z H M 6 2 1 0 0 1 X Z H M 6 2 _ A S 1 2 3 A S D 2 D N G T U O 3 1 T N O C V D D V 4 3 6 0 1 C u 1 0 4 6 0 1 C 7 5 0 1 C u 1 0 0 u 1 K 0 1 7 1 0 1 R F R V _ 5 8 V 2 p 0 0 0 1 5 4 0 1 C C F A A T A D _ G 2 K L C _ G 2 S B _ G 2 N E _ G 2 TP1 TP3 TP2 ...

Страница 101: ... 102 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 5 Trouble shooting ...

Страница 102: ...3 5 0 1 C K 1 1 1 0 1 R K 1 C1047 2 1 0 1 R K 1 3 1 0 1 R 100p C1049 100p C1048 100p C1046 100p 0 1 0 1 R K 1 p 2 2 2 0 0 1 C 0 0 0 3 E 2 2 H S 2 2 0 3 S R G 2 0 0 1 W S T N A 1 G 2 G F R B L _ T U O A P _ M S G B H _ T U O A P _ M S G B L _ T U O A P _ M S G B H _ T U O A P _ M S G 2 L E S _ T N A 1 L E S _ T N A 4 L E S _ T N A 3 L E S _ T N A 6 L E S _ T N A 5 L E S _ T N A GM310f service manua...

Страница 103: ... 104 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 5 Trouble shooting ...

Страница 104: ... T _ S C P _ N C P 1 X R _ N C P 6 1 2 X R _ N C P 7 1 1 X R _ S C P 8 1 9 1 2 X R _ S C P VDD 7 2 2 0 0 9 1 _ A M D C W 0 0 1 2 _ A M D C W 0 2 0 5 8 _ A M D C W 1 2 2 T N A CTRL1 3 CTRL2 4 5 CTRL3 6 CTRL4 1 X R _ M S G E 4 1 5 1 2 X R _ M S G E 1 1 D N G 8 2 D N G 0 1 3 D N G 1 0 0 1 L F 7 1 0 5 D p 2 2 6 2 0 1 C 3 2 0 1 C 2 1 0 1 C p 2 2 p 2 2 H n 8 1 3 0 0 1 L 9 3 0 1 C H n 1 5 6 0 0 1 L p 2 2...

Страница 105: ... 106 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 5 Trouble shooting ...

Страница 106: ...E _ X T T T A B V 4 P M A R V 5 3 0 0 1 U 5 0 0 5 M 7 M Q T 3 S B 1 P A C _ Y B 3 1 9 2 P A C _ Y B N I _ S C P _ S C D 1 T U O _ S C P _ S C D 2 1 1 D N G 4 1 1 1 2 D N G 8 u 1 0 0 0 6 0 1 C u 1 0 0 1 6 0 1 C p 6 1 5 0 1 C 2 6 0 1 C p 7 4 T A B V K 0 1 4 1 0 1 R 4 4 0 1 C u 3 3 p 3 3 6 5 0 1 C 0 5 0 1 C p 7 2 H n 9 3 5 5 0 1 C 8 5 0 1 C H n 2 2 H n 8 6 4 5 0 1 C 9 5 0 1 C p 2 1 2 5 0 1 C I N D B ...

Страница 107: ... 108 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 5 Trouble shooting 5 18 Trouble Shooting of WCDMA Part ...

Страница 108: ...ics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting GM310f service manual 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 ...

Страница 109: ...heck SW1001 YES Check TP2 or TP6 About 27 dBm Check FL1001 FEM NO Check TP3 or TP7 About 29 dBm Check FL1004 B7646 NO FL1007 B7638 or YES Change Rx level 80 dBm Check TP3 level Check TP4 or TP8 level TP3 level 15 dBm YES YES Check TP5 or TP9 level TP4 level 2 dBm Check U606 BGA735 Check FL1002 or FL1006 Check U1004 and U103 YES NO Rx Still has problem YES NO Rx Path is OK YES TP3 TP2 TP7 TP8 TP6 T...

Страница 110: ... F A S 1 G 2 2 G 5 N I 1 1 O 3 2 O 4 p 0 1 6 0 1 1 C I N D 0 8 0 1 C 6 7 0 1 C H n 7 4 p 7 2 5 7 0 1 C 9 6 0 1 C I N D p 0 1 6 6 0 1 C H n 2 8 7 0 1 1 C 1 D N G 2 D N G 4 D N G 3 D N G 5 D N G 6 D N G X R X T 8 3 6 7 B 7 0 0 1 L F T N A p 7 4 7 6 0 1 C 7 0 0 1 L H n 7 4 p 8 6 8 6 0 1 C p 8 6 5 6 0 1 C H n 7 2 8 0 0 1 L 0 0 F 0 A F 4 1 G 2 B E F A S 2 1 G 5 2 G 1 N I 3 1 O 4 2 O 2 0 0 1 L F 3G_LNA_...

Страница 111: ...TP11 level TP5 1 5dBm NO YES YES Setup Test Equipment Cell Power 60dBm UL CL PWR Crtl Parameter All up bits WCDMA Tx Path is OK Check U1004 or Check FL1003 or FL1006 TP3 or TP10 level 25 5dBm over YES NO Check U1007 NO Check TP2 or TP9 TP2 or TP9 level 24dBm over Check TP1 TP3 level 22dBm over Check FL1004 or FL1007 NO Check FL501 FEM Checking Flow NO YES YES Setup Test Equipment Cell Power 60dBm ...

Страница 112: ... 113 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Trouble shooting ...

Страница 113: ... 1 8 0 1 1 C A N 1 1 1 1 C 0 1 1 1 C I N D 3 0 0 1 L F 0 0 F 0 L F 5 9 G 1 B E F A S 1 G 2 5 2 G 3 1 N I 2 N I 4 1 T U O H n 1 5 2 1 0 1 L H n 5 1 7 7 0 1 C 7 8 0 1 C p 1 6 8 0 1 C p 5 1 H n 9 3 1 1 0 1 L H n 9 3 9 0 0 1 L 8 _ 5 C B _ N E A P _ G 3 8 _ 5 C B _ X T _ G 3 X 8 _ 5 C B _ X T _ G 3 1 E D O M _ A P _ G 3 1 C B _ N E A P _ G 3 8 3 6 7 B 5 C B 7 6 6 7 B 8 C B 9 0 1 1 C I N D H n 3 3 5 0 1...

Страница 114: ... 115 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 6 DOWNLOAD S W UPGRADE GM310 GM310 GM310 6 DOWNLOAD S W UPGRADE ...

Страница 115: ... 116 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 6 DOWNLOAD S W UPGRADE GM310 GM310 GM310 ...

Страница 116: ... 117 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 6 DOWNLOAD S W UPGRADE ...

Страница 117: ... 118 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 6 DOWNLOAD S W UPGRADE ...

Страница 118: ... 119 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 6 DOWNLOAD S W UPGRADE ...

Страница 119: ... 120 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 6 DOWNLOAD S W UPGRADE ...

Страница 120: ... 121 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 6 DOWNLOAD S W UPGRADE ...

Страница 121: ... 122 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 6 DOWNLOAD S W UPGRADE KP500 GM310 GM310 GM310 GM310 GM310 GM310 ...

Страница 122: ... 123 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 6 DOWNLOAD S W UPGRADE GM310 GM310 GM310 GM310 ...

Страница 123: ... 124 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 6 DOWNLOAD S W UPGRADE GM310 GM310 ...

Страница 124: ... 125 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 6 DOWNLOAD S W UPGRADE GM310 GM310 ...

Страница 125: ...PAM Transceiver PMB6952 26M UMTS 1900 or 2100 UMTS LNA Duplex UMTS 850 or 900 BaseBand Processor PMB8868 18Pin MMI Connector 18Pin MMI Connector RCV SPK RCV SPK 3 5Φ Ear phone Filter Filter BT FM Radio RBCA B561A 32K 32K PMIC PMB6821 Motor Charging IC ISL9221 BATTERY 900mAh USIM USIM Hall IC Hall IC Motor IC Motor IC TA TA Micro SD Micro SD Switch Switch Charge Pump Charge Pump Memory 1Gb Nand 512...

Страница 126: ...1 Y 2 T A D _ 1 I C M M 0 1 V 3 T A D _ 1 I C M M 8 A _ M E M 3 1 F 9 A _ M E M N _ 0 C B _ M E M 7 1 F N _ 1 C B _ M E M 7 1 H 5 1 F N _ 2 C B _ M E M 2 1 F N _ 3 C B _ M E M 8 1 D 1 O K L C F B _ M E M 2 O K L C F B _ M E M 7 1 E 4 1 D N _ S A C _ M E M 1 1 H E K C _ M E M N _ 0 S C _ M E M 8 1 K 7 1 L N _ 1 S C _ M E M 6 1 M N _ 2 S C _ M E M 5 1 N N _ 3 S C _ M E M N _ 0 A S C _ M E M 7 1 G N ...

Страница 127: ... 0 2 N C 1 D 2 D 1 2 3 9 0 2 P T u 2 2 O I V _ 2 6 V 2 8 0 2 P T 8 3 2 C 4 3 2 C T A B V u 2 2 K 7 4 3 0 2 R O I V _ 2 6 V 2 9 2 2 R 9 C D V I D N G P 3 1 P Y B _ B S U 0 1 1 C D V 2 1 P Y B _ C D V B S U V 2 4 G H C _ 5 N E _ R P P _ 3 G H C V K 7 4 1 2 2 9 L S I 4 0 2 U 1 1 T A B D N G 8 N I M I 6 7 B S U I u 1 0 1 1 2 C 2 2 2 R n T S R M P TP215 0 FB204 u 1 B S U V TP213 2 2 2 C 9 5 2 C u 0 1 u...

Страница 128: ... 5 9 5 6 0 6 7 8 9 5 3 6 3 7 3 8 3 9 3 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 3 1 3 0 3 2 3 3 3 4 3 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 2 2 0 3 N C 0 100K R306 3 0 3 L B S U V 2 1 3 R K 0 0 1 VA303 R F 0 7 2 8 1 5 0 S V C I M I S V _ 9 V 2 27p C307 C T R _ 1 1 V 2 3 1 3 C u 1 L304 100nH ZD302 T C T _ P 1 2 5 0 P M A L C R DNI R303 IN OUT C308 27p 1 ...

Страница 129: ...I P G 3 B _ O I P G 0 1 A 9 B 4 B _ O I P G 5 B _ O I P G 9 A 9 C 6 B _ O I P G 7 B _ O I P G 7 C 8 B 8 B _ O I P G 9 B _ O I P G 6 D 0 C _ O I P G 0 1 D 7 F 1 C _ O I P G 2 C _ O I P G 0 1 C 3 C _ O I P G 8 E 1 1 D 4 C _ O I P G 5 C _ O I P G 0 1 E 0 1 F 2 2 A _ O I P G 3 2 A _ O I P G 8 F 8 G 4 2 A _ O I P G 5 2 A _ O I P G 9 D 0 1 K 3 A _ O I P G 4 A _ O I P G 9 L 1 1 K 5 A _ O I P G 6 A _ O I ...

Страница 130: ... 0 1 C p 6 1 5 0 1 C H n 8 6 4 9 0 1 C 2 6 0 1 C p 7 4 T A B V K 0 1 4 1 0 1 R 0 9 0 1 C u 0 1 4 4 0 1 C u 3 3 1 7 0 1 C 0 7 0 1 C I N D I N D I N D 1 1 0 1 C 5 1 0 1 L p 0 0 1 p 3 3 6 5 0 1 C 1 1 A 2 A 5 1 B 2 6 2 B 4 D N G 8 C C V 1 Y 7 2 Y 3 T A B V 1 D N G 2 D N G 4 D N G 3 D N G 5 D N G 6 D N G X R X T G S U 2 3 Z W 7 2 L N 5 0 0 1 U 6 4 6 7 B 4 0 0 1 L F T N A K 1 6 0 0 1 R p 0 0 0 1 2 2 0 1...

Страница 131: ... 1 C 8 1 1 C u 1 u 0 2 2 DNI R103 DNI R105 E M M V _ 9 V 2 C101 24p DNI R102 L101 100nH H n 0 0 1 9 9 1 L R101 200K K 2 2 1 A 2 5 2 0 B 2 3 1 B 2 4 D N G 7 1 S 6 2 S 9 C C V 6 1 1 R 2 0 1 U X M U 8 6 2 2 A S F 8 A 1 0 B 1 0 1 1 B 1 1 2 1 C p 7 2 1 0 1 T A B 6 0 1 C p 0 0 0 1 R118 47K 2 0 1 B F 0 9 9 1 R p 7 2 5 1 1 C R110 10K G 2 T 2 Q S 0 0 2 2 S C N 1 0 1 U 2 D N G T U O 1 5 C C V 3 N I V N I V ...

Страница 132: ...0 1 R L H 4 0 1 H W T C S S LD104 4 1 1 R K 0 1 1 1 1 C u 1 0 EVLC5S02100 5 0 1 A V 4 0 1 A V EVLC5S02100 EVLC5S02100 3 0 1 A V 8 0 1 A V ICVL0518100Y500FR 2 2K R117 7 5 8 5 9 5 6 0 6 7 8 9 3 4 4 4 5 4 6 4 7 4 8 4 9 4 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 8 2 9 2 3 1 3 0 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 4 0 4 1 4 2 4 3 1 4 1 5 1 6 1 7 1 8 1 9 1 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 2 0 1 N C 1 0 1 1 1 2 1 7 ...

Страница 133: ...3 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 T A B V 2 0 1 N C 3 L B N _ V C R _ K P S T A B V D C L V _ 5 8 V 2 O I V _ 2 6 V 2 5 N I Y E K T E S E R _ H C U O T H C U O T _ L C S H C U O T _ A D S T N I _ H C U O T L R T C _ L B _ D C L T C E T E D _ E D I L S 2 L B 1 L B T N I _ H C U O T T E S E R _ H C U O T H C U O T _ A D S H C U O T _ L C S 2 L B 1 L B L R T C _ L B _ D C L 3 T U O Y E K N ...

Страница 134: ... 1 0 N D _ L O V D N E T A B V m h o 0 0 1 1 0 1 R 2 0 1 D L 1 0 1 P M 1 0 1 D L u 1 2 0 1 C 0 2 1 2 2 2 3 2 4 2 3 4 5 6 7 8 9 1 0 1 N C 1 0 1 1 1 3 1 2 1 4 1 5 1 6 1 7 1 8 1 9 1 2 2 1 G 3 2 G 4 O 1 P D N E S B P H 5 R H 0 1 4 0 U P S 1 0 1 C I M 0 5 1 4 0 1 R T A B V T A B V I N D 0 1 1 C 9 0 1 C I N D P _ C I M V 7 I T L U M u 1 0 4 0 1 C R A E L C m h o 0 0 1 2 0 1 R 33nH C120 6 8 0 1 C p 2 8 5...

Страница 135: ...V _ 9 V 2 4 2 5 2 6 2 7 2 8 2 9 2 3 0 3 1 3 2 3 3 3 4 3 4 5 6 7 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 8 1 7 1 9 1 2 0 2 1 2 2 2 3 2 2 0 1 N C K L C _ C M M D M C _ C M M 0 D _ C M M 1 D _ C M M N _ C I M _ S H P _ C I M _ S H T N A _ M F N E _ N O R W P R D N G _ R A E D N G _ R A E R _ T U O _ S H L _ T U O _ S H R S D X R _ T R A U X T _ T R A U T C E T E D _ K C A J O I _ M I S T S R _ M I S K L C _ M ...

Страница 136: ...All right reserved Only for training and service purposes LGE Internal Use Only 9 BGA Pin Map 1 INTRODUCTION PMB6952 Pin Configuration Top View NC Pin PMB6952 Pin Configuration Top View PMB6952 Pin Configuration Top View NC Pin 9 BGA Pin Map ...

Страница 137: ... Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 9 BGA Pin Map GM310f service manual BCM2046SB1 Pin Configuration Top View NC Pin BCM2046SB1 Pin Configuration Top View NC Pin ...

Страница 138: ... Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 9 BGA Pin Map GM310f service manual PMB6821 PMB6821 Pin Configuration Top View NC Pin PMB6821 Pin Configuration Top View NC Pin ...

Страница 139: ... 140 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 9 BGA Pin Map GM310f service manual TY9000A000TMGF ...

Страница 140: ...H J K L M N P R T U V W Y AA AB AC AD AE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 PMB8868 Pin Configuration Top View NC Pin A B C D E F G H J K L M N P R T U V W Y AA AB AC AD AE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 A B C D E F G H J K L M N P R T U V W Y AA AB AC AD AE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 PMB8868 Pin Configuration Top View NC Pin ...

Страница 141: ... 142 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes ...

Страница 142: ... o c y e K 3 0 3 N C d a p y e K t h g i l k c a B y e K n o r e w o p o N P B B 8 6 8 8 B M P 3 0 1 U n O r e w o P o N y a l p s i D o N e c i v r e S o N y r o m e M 2 0 1 U g n i t o o B o N h c t i w S B S U 1 0 3 U B S U r e f f u B 2 0 0 1 U r e w o P o N n o i t a r e p o T B l a t s y r C z H K 2 3 1 0 1 X C T R p o l F p i l F D 1 0 1 U e c i v r e S o N 143 10 PCB LAYOUT LGE Internal Us...

Страница 143: ...d r o c e R o i d a R M F l a t s y r C z H M 2 1 1 0 4 X D S u y a l P 3 P M g n i d r o c e R o i d a R M F g n i t o o B o N C I g n i g r a h C 5 0 2 U g n i g r a h C o N C I M P b u S 4 0 4 U D S u y a l P 3 P M g n i d r o c e R o i d a R M F g n i t o o B o N M E F 1 0 0 1 L F A M D C W M S G y t i v i t i s n e S x R e c i v r e S o N r e w o P X T M A P M S G 3 0 0 1 U r e w o P X T M S ...

Страница 144: ... 145 10 PCB LAYOUT LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes J101 3 5pi socket Ear phone GM310 ...

Страница 145: ...09 LG Electronics Inc All right reserved Only for training and service purposes U101 Comparator Hook BAT101 Backup Battery RTC U102 Analog SW No Ear phone Sound CN101 Main to Sub Conn SIM Card u SD Ear phone RTC S101 u SD Socket u SD J102 SIM Socket SIM ...

Страница 146: ... Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LD105 MP3 RW Touch key Backlight LED LD101 4 Navi Touch key Backlight LED LD105 MP3 FF Touch key Backlight LED LD107 LD108 OK Soft key Backlight LED ...

Страница 147: ...ht reserved Only for training and service purposes CN102 LCD Sub Conn No Display Touch Vibrator Touch key Backlight U102 Touch IC Touch Key U102 Touch LDO Touch Key CN101 LCD Conn No Display U105 Vibrator Driver IC Vibrator U103 Hall IC Slide Detect U210 U206 Charge Pump No Display ...

Страница 148: ...ly Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CN101 LCD Main Conn No Display SPK RCV Sound Touch Vibrator Touch key Backlight CN102 LCD Sub Conn No Display Touch Vibrator Touch key Backlight ...

Страница 149: ...0 PCB LAYOUT 150 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CN103 SPK Solder Pad No SPK Sound VB101 Vibrator Solder Pad No Vibrator ...

Страница 150: ...151 10 PCB LAYOUT LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LD101 102 Key Backlight LED Key Backlight MIC101 MEMS MIC No MIC Sound ...

Страница 151: ...CB LAYOUT 152 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CN101 Key Conn No Key PAD No Power On No Key Backlight SW101 ANT SW No network ...

Страница 152: ... 153 10 PCB LAYOUT LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes C M G L CN102 Main to Sub Conn SIM Card u SD Ear phone RTC ...

Страница 153: ...10 PCB LAYOUT 154 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CN101 Main to Sub Conn SIM Card u SD Ear phone RTC ...

Страница 154: ...nc All right reserved Only for training and service purposes LGE Internal Use Only 11 RF Calibration 11 RF Calibration GM310f service manual 11 1 Test Equipment Setup 11 2 Calibration Step 11 2 1 Turn on the Phone 11 2 2 Execute HK_36 exe ...

Страница 155: ...se Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 11 RF Calibration GM310f service manual 11 2 2 Click SETTING Menu 11 2 3 Setup Ezlooks menu such as the following figure ...

Страница 156: ...urposes LGE Internal Use Only 11 RF Calibration GM310f service manual 11 2 4 Setup Line System menu such as the following figure 11 2 5 Setup Logic operation such as the following figure 11 2 6 Select MODEL CELL Call Test Equipment PWR Power Supply Setup UART port Adjust the number of times ...

Страница 157: ...Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 11 RF Calibration GM310f service manual 11 2 7 Click START for RF calibration 11 2 8 RF Calibration finishes Select Model Start ...

Страница 158: ...1 RF Calibration GM310f service manual 11 2 8 Calibration data will be saved to the following folder Notices 1 The state of Phone is test mode during the CALIBRATION 2 Calibration program automatically changes either normal mode or ptest mode 3 Phone operation Mode Normal Mode Ptest Mode Saving Format Year month day Pass ...

Страница 159: ... 160 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes ...

Страница 160: ...Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 21 11 8 5 4 2 1 3 6 7 9 10 53 51 52 50 48 49 43 44 45 46 47 27 25 26 22 18 14 12 13 16 29 35 33 36 41 39 40 31 37 32 42 34 28 30 38 54 55 56 15 19 17 20 23 24 ...

Страница 161: ...ASS Y EXPLODED VIEW 162 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes A B C D E F G H ...

Страница 162: ...ER MIKE MFBD0035301 COMPLEX empty WITHOUT COLOR 34 4 MLAB LABEL A S MLAB0001102 C2000 USASV DIA 4 0 WHITE 4 MPBF00 PAD FLEXIBLE PCB MPBF0043601 COMPLEX empty WITHOUT COLOR 4 MPBT00 PAD CAMERA MPBT0067501 COMPLEX empty WITHOUT COLOR 41 4 MPBU00 PAD CONNECTOR MPBU0047501 COMPLEX empty WITHOUT COLOR 35 4 MPBU02 PAD CONNECTOR MPBU0047701 COMPLEX empty WITHOUT COLOR 36 4 MTAA00 TAPE DECO MTAA0173601 CO...

Страница 163: ...Alloy YELLOW 1 5 MDAP00 DECO SLIDE UPPER MDAP0004801 MOLD PC LUPOY SC 1004A WITHOUT COLOR 5 5 MFBC00 FILTER SPEAKER MFBC0047701 COMPLEX empty PURPLE 2 5 MPBN00 PAD SPEAKER MPBN0064501 COMPLEX empty WITHOUT COLOR 10 5 MTAA00 TAPE DECO MTAA0173501 COMPLEX empty WITHOUT COLOR 4 5 MTAA01 TAPE DECO MTAA0196801 COMPLEX empty BLACK 5 MTAB00 TAPE PROTECTION MTAB0319501 COMPLEX empty WITHOUT COLOR 5 MTAB01...

Страница 164: ... empty WITHOUT COLOR 4 GMEY00 SCREW MACHINE BIND GMEY0013801 1 4 mm 2 0 mm MSWR3 FN N NYLOK SILVER 4 MCCH00 CAP SCREW MCCH0141401 CUTTING PMMA MR 200 WITHOUT COLOR 26 4 MCCH01 CAP SCREW MCCH0141501 CUTTING PMMA MR 200 WITHOUT COLOR 27 4 MGAD00 GASKET SHIELD FORM MGAD0195601 COMPLEX empty SILVER 4 MIDZ01 INSULATOR MIDZ0195201 COMPLEX empty WITHOUT COLOR 23 4 MPBF00 PAD FLEXIBLE PCB MPBF0044701 COMP...

Страница 165: ...Y00 SCREW MACHINE BIND GMEY0014301 2 7 mm 3 5 mm MSWR3 Ni NYLOK 0 6 Silver 56 5 ACKA00 CAN ASSY SHIELD ACKA0011201 TOP WITHOUT COLOR 51 6 MCBA00 CAN SHIELD MCBA0052701 PRESS STS WITHOUT COLOR 6 MGAD00 GASKET SHIELD FORM MGAD0195501 COMPLEX empty WITHOUT COLOR 6 MGAD01 GASKET SHIELD FORM MGAD0195502 COMPLEX empty WITHOUT COLOR 5 ACKA01 CAN ASSY SHIELD ACKA0011301 BTM WITHOUT COLOR 52 6 MCBA00 CAN S...

Страница 166: ... 4 SACY01 PCB ASSY FLEXIBLE SACY0087801 48 5 SACB00 PCB ASSY FLEXIBLE INSERT SACB0052001 5 SACE PCB ASSY FLEXIBLE SMT SACE0080701 6 SACC00 PCB ASSY FLEXIBLE SMT BOTTOM SACC0056401 7 C108 CAP CHIP MAKER ECZH0000813 100 pF 50V J NP0 TC 1005 R TP 7 C120 INDUCTOR CHIP ELCH0005819 33 nH J 1005 R TP 7 CN101 CONNECTOR BOARD TO BOARD ENBY0034101 24 PIN 0 4 mm ETC GB042 H 1 0 Plug 7 SW101 CONN RF SWITCH EN...

Страница 167: ...0027801 COLOR UNFIXED 5 SAEE00 PCB ASSY KEYPAD SMT SAEE0033101 COLOR UNFIXED 6 SAEC00 PCB ASSY KEYPAD SMT BOTTOM SAEC0032001 COLOR UNFIXED 7 C101 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 7 C102 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 7 C103 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 7 C104 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 7 C105 CA...

Страница 168: ... R TP 7 R109 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP 7 R110 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 7 R111 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP 7 R112 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 7 R113 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 7 R114 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 7 R116 FILTER BEAD CHIP SFBH0007102...

Страница 169: ...VY0004301 18 V SMD 10pF 1005 7 VA113 VARISTOR SEVY0004301 18 V SMD 10pF 1005 7 VA114 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 7 VA115 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 7 VA116 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 7 VA117 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 7 ZD101 DIODE TVS EDTY0009601 SLP1006P2 5 V 100 W R TP 1 0x0 6x0 5t empty e...

Страница 170: ...FIXED 5 SACY01 PCB ASSY FLEXIBLE SACY0087901 6 SACE PCB ASSY FLEXIBLE SMT SACE0080801 7 SACC00 PCB ASSY FLEXIBLE SMT BOTTOM SACC0056501 8 CN101 CONNECTOR BOARD TO BOARD ENBY0040201 34 PIN 0 4 mm ETC H 1 0 Plug 7 SACD PCB ASSY FLEXIBLE SMT TOP SACD0069501 8 CN102 CONNECTOR BOARD TO BOARD ENBY0040201 34 PIN 0 4 mm ETC H 1 0 Plug 7 SPCY PCB FLEXIBLE SPCY0163401 POLYI 0 15 mm DOUBLE 5 SAJY00 PCB ASSY ...

Страница 171: ...AP CERAMIC CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 8 C122 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 8 C199 INDUCTOR CHIP ELCH0003827 47 nH J 1005 R TP chip coil 8 CN101 CONNECTOR BOARD TO BOARD ENBY0040301 34 PIN 0 4 mm ETC H 1 0 Socket 8 FB101 FILTER BEAD CHIP SFBH0008105 1800 ohm 1005 Chip bead 1800ohm empty R TP 8 FB102 FILTER BEAD CHIP SFBH0008105 1800 ohm 1005 Chip bead 180...

Страница 172: ...ENSY0015801 8 PIN ETC 1 1 mm H 1 9 Detect Pin 8 U101 IC EUSY0250501 SC70 5 PIN R TP Comparator pin compatible to EUSY0077701 8 U102 IC EUSY0363501 uMLF 10 R TP 0 4ohm Audio Analog Switch IC Analog Switch 8 VA101 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 8 VA102 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 8 VA103 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 8 VA104 VA...

Страница 173: ...05 R TP 6 C110 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C111 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C112 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C113 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C114 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C115 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C11...

Страница 174: ...05 R TP 6 C142 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NP0 TC 1005 R TP 6 C143 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NP0 TC 1005 R TP 6 C144 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NP0 TC 1005 R TP 6 C145 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C146 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NP0 TC 1005 R TP 6 C147 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NP0 TC 1005 R TP 6 C...

Страница 175: ...5 R TP 6 C226 CAP CERAMIC CHIP ECCH0005603 2 2 uF 10V K X5R TC 1608 R TP 6 C227 CAP CERAMIC CHIP ECCH0007802 4 7 uF 10V M X5R TC 1608 R TP 6 C228 CAP CERAMIC CHIP ECCH0005603 2 2 uF 10V K X5R TC 1608 R TP 6 C229 CAP CERAMIC CHIP ECCH0007802 4 7 uF 10V M X5R TC 1608 R TP 6 C230 CAP CERAMIC CHIP ECCH0007802 4 7 uF 10V M X5R TC 1608 R TP 6 C231 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R T...

Страница 176: ...202 DIODE SWITCHING EDSY0011901 EMD2 30 V 1 A R TP VF 1 5V IF 200mA IR 30uA VR 10V 6 D203 DIODE SWITCHING EDSY0011901 EMD2 30 V 1 A R TP VF 1 5V IF 200mA IR 30uA VR 10V 6 FB201 FILTER BEAD CHIP SFBH0009201 220 ohm 1608 6 FB202 FILTER BEAD CHIP SFBH0009601 220 ohm 1005 DCR 0 35 Rated current 500mA PBFREE 6 FB203 FILTER BEAD CHIP SFBH0009201 220 ohm 1608 6 FB301 FILTER BEAD CHIP SFBH0008105 1800 ohm...

Страница 177: ...9 RES CHIP MAKER ERHZ0000204 100 Kohm 1 16W F 1005 R TP 6 R101 RES CHIP ERHY0000166 390 Kohm 1 16W F 1005 R TP 6 R1016 RES CHIP MAKER ERHZ0000435 20 ohm 1 16W J 1005 R TP 6 R1017 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R102 RES CHIP MAKER ERHZ0000204 100 Kohm 1 16W F 1005 R TP 6 R1022 RES CHIP MAKER ERHZ0000522 24 ohm 1 16W J 1005 R TP 6 R103 RES CHIP MAKER ERHZ0000328 24000 ohm 1 1...

Страница 178: ...W J 1005 R TP 6 R213 RES CHIP MAKER ERHZ0000485 4700 ohm 1 16W J 1005 R TP 6 R214 RES CHIP MAKER ERHZ0000204 100 Kohm 1 16W F 1005 R TP 6 R215 RES CHIP MAKER ERHZ0000204 100 Kohm 1 16W F 1005 R TP 6 R222 PCB ASSY MAIN PAD SHORT SAFP0000501 6 R223 PCB ASSY MAIN PAD SHORT SAFP0000501 6 R302 RES CHIP MAKER ERHZ0000203 10 Kohm 1 16W F 1005 R TP 6 R303 PCB ASSY MAIN PAD OPEN SAFO0000501 0OHM_1005_DNI 6...

Страница 179: ...301 VARISTOR SEVY0004101 5 6 V SMD 360pF 1005 6 VA302 VARISTOR SEVY0005403 18 V 30 SMD 27pF 1005 6 VA303 VARISTOR SEVY0005403 18 V 30 SMD 27pF 1005 6 VA304 VARISTOR SEVY0005403 18 V 30 SMD 27pF 1005 6 VA305 VARISTOR SEVY0005403 18 V 30 SMD 27pF 1005 6 VA306 VARISTOR SEVY0004301 18 V SMD 10pF 1005 6 VA307 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 6 VA308 VARISTOR SEVY0004101 5 6 V SMD 3...

Страница 180: ... 1005 R TP 6 C1014 CAP CERAMIC CHIP ECCH0000127 82 pF 50V J NP0 TC 1005 R TP 6 C1015 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C1016 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C1017 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C1018 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C1019 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R...

Страница 181: ...50V J NP0 TC 1005 R TP 6 C1050 CAP CERAMIC CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 6 C1051 CAP CERAMIC CHIP ECCH0000107 6 pF 50V D NP0 TC 1005 R TP 6 C1052 CAP CHIP MAKER ECZH0000816 12 pF 50V J NP0 TC 1005 R TP 6 C1053 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C1055 INDUCTOR CHIP ELCH0005018 39 nH J 1005 R TP 6 C1056 CAP CERAMIC CHIP ECCH0000180 3 3 pF 50V C NP0 TC 1005 R ...

Страница 182: ...TC 1005 R TP 6 C1093 CAP CHIP MAKER ECZH0000844 68 pF 50V J NP0 TC 1005 R TP 6 C1094 INDUCTOR CHIP ELCH0004713 6 8 nH J 1005 R TP 6 C1095 CAP CERAMIC CHIP ECCH0000104 3 pF 50V C NP0 TC 1005 R TP 6 C1096 CAP CERAMIC CHIP ECCH0000122 47 pF 50V J NP0 TC 1005 R TP 6 C1097 INDUCTOR CHIP ELCH0004713 6 8 nH J 1005 R TP 6 C1103 CAP CERAMIC CHIP ECCH0000115 22 pF 50V J NP0 TC 1005 R TP 6 C1104 CAP CERAMIC ...

Страница 183: ...X5R TC 1005 R TP 6 C260 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 6 C261 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 6 C264 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C403 CAP CERAMIC CHIP ECCH0007802 4 7 uF 10V M X5R TC 1608 R TP 6 C404 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C405 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R...

Страница 184: ...CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C432 CAP CERAMIC CHIP ECCH0000157 15 nF 16V K X7R HD 1005 R TP 6 C433 CAP CERAMIC CHIP ECCH0000157 15 nF 16V K X7R HD 1005 R TP 6 C434 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 6 C435 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty e...

Страница 185: ...SFBH0000903 600 ohm 1005 6 FB206 FILTER BEAD CHIP SFBH0000903 600 ohm 1005 6 FB207 RES CHIP ERHY0003201 1000 ohm 1 16W F 1005 R TP 6 FB401 FILTER BEAD CHIP SFBH0009601 220 ohm 1005 DCR 0 35 Rated current 500mA PBFREE 6 FB402 FILTER BEAD CHIP SFBH0009601 220 ohm 1005 DCR 0 35 Rated current 500mA PBFREE 6 FB403 FILTER BEAD CHIP SFBH0009601 220 ohm 1005 DCR 0 35 Rated current 500mA PBFREE 6 FL1001 FI...

Страница 186: ... L1010 INDUCTOR CHIP ELCH0004711 22 nH J 1005 R TP 6 L1011 INDUCTOR CHIP ELCH0001057 3 9 nH S 1005 R TP PBFREE 6 L1012 INDUCTOR CHIP ELCH0003814 5 1 nH S 1005 R TP 5 1nH 1005 6 L1013 INDUCTOR CHIP ELCH0004711 22 nH J 1005 R TP 6 L1014 INDUCTOR CHIP ELCH0004710 15 nH J 1005 R TP 6 L1015 CAP CHIP MAKER ECZH0000813 100 pF 50V J NP0 TC 1005 R TP 6 L1016 INDUCTOR CHIP ELCH0003818 9 1 nH J 1005 R TP 6 L...

Страница 187: ...HIP ERHY0000185 820 ohm 1 16W F 1005 R TP 6 R1019 RES CHIP MAKER ERHZ0000454 27 Kohm 1 16W J 1005 R TP 6 R1020 PCB ASSY MAIN PAD SHORT SAFP0000501 6 R1021 PCB ASSY MAIN PAD SHORT SAFP0000501 6 R1023 RES CHIP MAKER ERHZ0000522 24 ohm 1 16W J 1005 R TP 6 R201 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R204 RES CHIP ERHY0000298 3 3M ohm 1 16W J 1005 R TP 6 R205 PCB ASSY MAIN PAD SHORT SA...

Страница 188: ...P 6 R406 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R407 RES CHIP MAKER ERHZ0000205 1 Mohm 1 16W F 1005 R TP 6 R408 RES CHIP ERHY0000512 10M ohm 1 16W J 1608 R TP 6 R409 PCB ASSY MAIN PAD OPEN SAFO0000501 0OHM_1005_DNI 6 R410 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R411 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R412 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W...

Страница 189: ...al LDO 6 U403 IC EUSY0365301 Micro SMD 20 R TP Class D Bypass IC Audio Sub System 6 U404 IC EUSY0270602 MICRO SMD 24 PIN R TP 2BUCK 2LDO 2 5x2 5 IC Sub PMIC 6 U405 IC EUSY0369901 BGA 121 R TP MP3 chip IC Digital Signal Processors 6 U606 IC EUSY0365001 TSLP 16 16 R TP Triple Band UMTS LNA 2 3 x 2 3 x 0 39 IC RF Amplifier 6 VA401 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 6 VA402 VARISTOR...

Страница 190: ... 10KHZ 104dB 100KHZ empty BLACK 3 5 L TYPE STEREO 4POLE PLUG Mic Slim Canal Earphone Stereo 3 SSAD00 ADAPTOR AC DC SSAD0032301 100 240V 5060 Hz 5 1 V 0 7 A AC DC ADAPTOR 90Vac 264Vac 4 75Vdc 5 25Vdc 700mA 5060 WALL 2P I O CONNECTOR 㾌 ADAPTOR AC DC SSAD0024601 100 240V 5060 Hz 5 1 V 7 A NOM AC DC ADAPTOR 85Vac 264Vac 5 1V 0 15V 0 2V 700mA 5060 WALL 2P I O CONNECTOR 㾌 ADAPTOR AC DC SSAD0024602 100 2...

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