LG KC780 Service Manual Download Page 75

Page: 75 / 175

- 76 -

LGE Internal Use Only

Only for training and service purposes

5. TROUBLE SHOOTING

START

18pin IO(CN302)

Is soldered ?

Source pin of

TP1

FL302 =

5 1V ?

Resolder the

CN302

The TA can be

broken

Change other TA

then retest

Yes

18pin

Output pin

TP2

D101=4.2V?

Check solder

D101

Yes

Battery voltage

is over 3.35V?

charging until

battery

Voltage goes up to

3.35V

Charge is operating properly

Yes

Summary of Contents for KC780

Page 1: ...Service Manual Model KC780 Internal Use Only Service Manual KC780 Date January 2009 Issue 1 1 ...

Page 2: ... 3 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only REVISED HISTORY Editor Date Issue Contents of Changes S W Version Y G KIM 08 27 0 1 ...

Page 4: ... 3 21 Transmitter part 63 3 22 RF synthesizer 64 3 23 DCXO 64 3 24 Front End Module control 64 3 25 Power Ampliﬁer Module 66 3 26 Mode Selection 66 4 PCB layout 67 4 1 Main PCB component placement 67 5 TROUBLE SHOOTING 71 5 1 Trouble shooting test setup 71 5 2 Power on Trouble 72 5 3 Charging trouble 75 5 4 LCD display trouble 77 5 5 Camera Trouble 80 5 6 Receiver Speaker trouble 82 5 7 Microphone...

Page 6: ...onverter DCS Digital Communication System 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 ...

Page 7: ...t 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 Compensated Crystal Os...

Page 8: ...ipment 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 1 2 2 Incidence of Harm If a telephone company determines that the equipment provided...

Page 9: ...llowing to the end user 1 2 6 Pictures The pictures in this manual are for illustrative purposes only your actual hardware may look slightly different 1 2 7 Interference and Attenuation An KC780 may interfere with sensitive laboratory equipment medical equipment etc Interference from unsuppressed engines or electric motors may cause problems 1 2 8 Electrostatic Sensitive Devices ATTENTION Boards w...

Page 10: ...urs RX Sensitivity EGSM 105dBm DCS PCS 105dBm TX output power EGSM 33dBm PL 5 DCS PCS 30dBm PL 0 GPRS compatibility Class 12 SIM card type 3V Small Display 240 u 320 pixels 2 4 inch QVGA 262K color TFT Status Indicator Soft icons 0 a 9 Scroll Send End PWR Clear AF Camera double action Volume Up Volume Down ANT Built in antenna EAR Phone Jack 18pin multi port Headset jack W O remote controller PC S...

Page 11: ...n 512 a 810 RX TX 80MHz 2 Phase Error RMS 5 degrees Peak 20 degrees 3 Frequency Error 0 1ppm EGSM Level Power Toler Level Power Toler 5 33 dBm 2dB 13 17 dBm 3dB 6 31 dBm 3dB 14 15 dBm 3dB 7 29 dBm 3dB 15 13 dBm 3dB 8 27 dBm 3dB 16 11 dBm 5dB 9 25 dBm 3dB 17 9 dBm 5dB 10 23 dBm 3dB 18 7 dBm 5dB 11 21 dBm 3dB 19 5 dBm 5dB 12 19 dBm 3dB DCS1800 PCS1900 Level Power Toler Level Power Toler 0 30 dBm 2dB...

Page 12: ...0 60 1 800 3 000 63 3 000 6 000 65 6 000 71 DCS1800 PCS1900 Offset from Carrier kHz Max dBc 100 0 5 200 30 250 33 400 60 600 1 200 60 1 200 1 800 60 1 800 3 000 65 3 000 6 000 65 5 Output RF Spectrum due to modulation 6 000 73 EGSM Offset from Carrier kHz Max dBm 400 19 600 21 1 200 21 1 800 24 DCS1800 PCS1900 Offset from Carrier kHz Max dBm 400 22 600 24 1 200 24 6 Output RF Spectrum due to switc...

Page 13: ...vel Report accuracy r 3 dB 10 SLR 8 r 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 0 12 1 000 0 6 2 000 4 6 3 000 4 6 3 400 4 9 11 Sending Response 4 000 0 12 RLR 2 r 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 2 7 500 5 1 000 0 5 3 000 2 5 3 400 2 10 4 000 2 13 Receiving Response Mean that Adopt a straight line in between 300 Hz and 1 000 Hz to be Max level in the range 14 STMR 13 r 5 dB...

Page 14: ...ditions at least 300 hours 1 Brand new and full 900mAh battery 2 Full charge no receive send and keep GSM in idle mode 3 Broadcast set off 4 Signal strength display set at 3 level above 5 Backlight of phone set off 23 Ringer Volume At least 65 dB under below conditions 1 Ringer set as ringer 2 Test distance set as 50 cm 24 Charge Current TA Charge 450 mA USB Charge 200 mA Antenna Bar Number Power ...

Page 15: ...k EVM 30 3 95th Percentile EVM 15 4 Origin Offset Suppression 30dB EGSM Level Power Toler Level Power Toler 5 27dBm 3dB 13 17dBm 3dB 6 27dBm 3dB 14 15dBm 3dB 7 27dBm 3dB 15 13dBm 3dB 8 27dBm 3dB 16 11dBm 5dB 9 25dBm 3dB 17 9dBm 5dB 10 23dBm 3dB 18 7dBm 5dB 11 21dBm 3dB 19 5dBm 5dB 12 19dBm 3dB DCS1800 PCS1900 Level Power Toler Level Power Toler 0 26dBm 3dB 8 14dBm 3dB 1 26dBm 3dB 9 12dBm 4dB 2 26d...

Page 16: ...3 000 6 000 65 6 000 71 DCS1800 PCS1900 Offset from carrier kHz Max dBc 100 0 5 200 30 250 33 400 54 600 1 200 60 1 200 1 800 60 1 800 3 000 63 3 000 6 000 65 6 000 71 EGSM Offset from carrier kHz Max dBm 400 23 600 26 1 200 27 1 800 30 DCS1800 PCS1900 Offset from carrier kHz Max dBm 400 23 600 26 1 200 27 7 Output RF Spectrum due to switching transient 1 800 30 ...

Page 17: ...right reserved Only for training and service purposes 2 PERFORMANCE III 1 Baseband circuit 3 1 KC780 Component Block diagram KC780 is composed with 5 different PCB part such as main PCB Key PCB Key FPCB LCD FPCB and Flash FPCB The functional component arrangement is mentioned below diagram Figure 1 KC780 Functional block diagram 8M 2012 module 8bit parallel I F 2 1Gb LMSP43NA 7 82 3 TECHNICAL BRIE...

Page 18: ...re rich mobile phones The EDGE capable device combines all digital and analog functions of the baseband a quad band RF transceiver and the power management circuitry into a single chip With an option for memory stacking Package on Package JEDEC compliant the key functions of a mobile phone are now combined into a single device providing all the benefits that come from a maximum level of integratio...

Page 19: ...to class 12 without additional external hardware A wide choice of communication interfaces allows complex data and multimedia system designs Furthermore S GOLDradioTM contains its own Power Supply and Battery Management Its design is optimized forall mobile platform needs such as graphic displays with backlights and internal needs analog components loudspeaker USB etc S GOLDradioTM is driven direc...

Page 20: ... Part Introduction Figure 3 S GOLDradioTM Baseband Block Diagram 3 3 1 Block Description Connectivity S GOLDradioTM offers a variety of connectivity options common in today s feature phone applications USB 2 0 Full Speed 12 Mbps IrDA Controller Supports Infrared SIR Mode Transceivers RS 232 over a 16C550 compliant UART MMC SD Memory Card Interface ...

Page 21: ...e Debug 128 bit customer defined efuse key Anti intrusion logic Audio Besides the telephony voice CODECs supplied by the Firmware running on the TEAKLite DSP core the ARM926 core enables running high quality audio CODECs such as MPEG 1 2 Layer 3 Decode MP3 AAC or AAC Audio streaming is supported according to the 3GPP PSS Release 4 standard The output of audio and voice codecs can be mixed and rout...

Page 22: ...ownloaded from the internet Supported video sequence multimedia scenarios Record Video Sequences Captured frames in QCIF resolution are transferred to internal memory at 15 fps H 263 or MPEG 4 encoding is performed on the fly by SW with the support of the MOVE coprocessor The audio recording is performed on the DSP GSM AMR CODEC Multiplexing of audio and video streams is performed by the ARM View ...

Page 23: ...media IC 215 0638018 AMD Multimedia processing 3 3 3 RF Interface S GOLDradio uses this interface to control RF IC and Peripherals 6 signals are provided switch on off RF ICs Periodically each TDMA frame Table 2 RF Interface Spec T_OUT Resource Interconnection Description PABS PA_BAND TX RF band select PAMODE PA_MODE PAM Mode select FE1 VC1 FEM control FE2 VC2 FEM control PAEN PA_EN PAM Power on V...

Page 24: ...asure M2 N C M7 H W VERSION S GOLDradio H W version detect M8 VSUPPLY Battery supply voltage measure M9 N C M10 REMOTE_ADC Remote control key detect 3 3 6 GPIO map Over a hundred allowable resources KC780 is using as follows except dedicated to SIM and Memory KC780 GPIO General Purpose Input Output Map describing application I O state and enable level is shown in below table Table 5 S GOLDradio GP...

Page 25: ...IF_D3 MM_AD3 CIF_D4 MM_AD4 CIF_D5 MM_AD5 CIF_D6 MM_AD6 CIF_D7 MM_AD7 CIF_PCLK COVER_OPEN CIF_HSYNC MM_WAIT CIF_VSYNC TP CLKOUT2 GPO_CTRL1 CIF_PD_GPIO N A CIF_RESET_GPIO GPO_CTRL2 Display_Interface DIF_D0 MM_AD8 DIF_D1 MM_AD9 DIF_D2 MM_AD10 DIF_D3 MM_AD11 DIF_D4 MM_AD12 DIF_D5 MM_AD13 DIF_D6 MM_AD14 DIF_D7 MM_AD15 DIF_CS1 MM_CS0 DIF_CS2 REMOTE_INT DIF_CD MM_A16 DIF_WR MM_WR DIF_RD MM_RD DIF_HD MM_I...

Page 26: ..._BT_TX USIF_RXD_MRST UART_BT_RX USIF_SCLK BT_VCXO_EN I2S1 DAI PCM I2S1_CLK0 I2S1_CLK I2S1_RX I2S1_RX I2S1_TX I2S1_TX I2S1_WA0 I2S1_WA0 MMCI SD Extension MMCI_DAT1 MMCI_DAT1 MMCI_DAT2 MMCI_DAT2 MMCI_DAT3 MMCI_DAT3 Voiceband Analog Interface EP_N SND_L EP_P SND_R HS_N EAR_N EP_CM NA HS_P EAR_P MIC1_N MIC_N MIC1_P MIC_P MIC2_N HS_MIC_N MIC2_P HS_MIC_P VMIC VMIC Measurement M0 BAT_ID M1 RF_TEMP M2 JAC...

Page 27: ...ort FCDP_RBN FCDP GSM TDMA Timer GSM Control T_OUT1 NONE T_OUT2 NONE T_OUT3 UART_BT_RTS T_OUT4 UART_BT_CTS T_OUT5 FLIP_OPEN T_OUT6 PA_MODE_2 T_OUT7 KP_OUT 4 T_OUT8 DSR Other Functional Pins Clocks and control CLKOUT0 LCD_ID F26M NONE F32K F32K OSC32K OSC32K RESET_N nRESET VDD_FUSE_FS GND RTC_OUT NONE PMU_SCMODE_OUT NONE VCXO_EN NONE Extra I Os Interrupt Inputs DSPIN0 CLK32K DSPIN1 CHG_EOC Digital ...

Page 28: ...V5 VSS_MS GND VSS_EP GND AGND_MS1 2 GND RF Front end TX2 TXHB TX1 TXLB RX1 EGSM_RXP RX1X EGSM_RXN RX2 GSM900_RXP RX2X GSM900_RXN PABIAS NA PABS PA_BAND RX3 DCS1800_RXP VDET TP PAMODE PA_MODE RX3X DCS1800_RXN FE1 VC1 FE2 VC2 PAEN PA_EN RX4 PCS1900_RXP VRAMP TX_RAMP RX4X PCS1900_RXN Baseband I 0 FSYS3 26M_OUT FSYS2 26M_BT Reference Oszillator PLL REFR NA XOX 26MHz XO 26MHz Power Supply VDDTX VRF3_2V...

Page 29: ...SRF5 GND VSSRF6 GND VSSRF7 GND VSSRF8 GND VSSRF9 GND VSSRF10 GND VSSRF11 GND VSSRF12 GND VSSRF13 GND VSSRF14 GND Linear Voltage Reulators VAUDIO VAUDIO_2V5 VBAT_AUDIO VBAT VSS_AUDIO GND VLED TP VAUX VAUX_2V9 VVIB VVIB_2V8 VBAT_LDO1 VBAT VSS_LDO1 GND VMMC VMMC VUSB VUSB_3V1 VBAT_BSW_USB_MMC VBAT VIO VIO_2V82 VIOb NONE VSIM VSIM_2V8 VBAT_LDO2 VBAT VSS_LDO2 GND VPLL VPLL_1V5 VRF2 VRF2_1V5 VDD_RF2PLL ...

Page 30: ..._IN1 VRTC_2V0 VRTC NONE Reference IREF1 GND A_GND GND VREF1 GND LED s BL1_PWM VSENSE1 TP BL2_PWM TP BL3_PWM TP FLASH_ON NONE TXONPA NONE VSS_FLASH GND FLASH_SINK KEY_BL Step Down Converter 1 SD1 VBAT_SD1 VBAT VSD1 VSD1_1V5 SD1_FB VSD1_1V5 SD2_SD1_SUBST GND VSS_SD1 GND SD1_FBL GND VDDANA_SW NONE VSSANA_SW NONE Step Down Converter 2 SD2 VBAT_SD2 VBAT VSD2 VSD2_1V8 SD2_FB VSD2_1V8 SD2_FBL GND VSS_SD2...

Page 31: ...ithium Ion battery driven applications that require different power rails The S GOLDradio PMU provides two fully integrated highly efficient step down converters for the main loads such as cores and memories Both step down converters support low power modes PFM for maximum efficiency at all times the output voltages are stable under all load conditions For supply voltages higher than the battery v...

Page 32: ...utput voltage 300 mA high efficiency step down converter SD2 with 1 8 V output voltage One step up converter 5 6 V 25 V 120 mA step up converter SU1 for the main LCD backlight keypad backlight and photo flash Linear Low Dropout LDO Regulators General Purpose LDOs 2 9 V 150 mA ultra low drop VAUX 2 62 V 100 mA VIO 1 8 V 2 9 V 22 mA ultra low drop VSIM 1 8 V 2 9 V 150 mA ultra low drop VMME 2 8 V 14...

Page 33: ...lled charging Common Charge and Accessory Pin Motor Driver Single ended linear controlled 140 mA motor driver for 2 8 V vibrator Optional PWM controlled internal pass device used as a switch Audio Amplifier Battery driven 400 mW differential audio amplifier for driving 8 ohm loudspeaker Three gain stages including overdrive for ringing tones 90 dB PSRR 4 kHz Interfaces I2C control interface for de...

Page 34: ...VRF3_2V85 R111 390K C107 1u VRF3_2V85 VRF3_2V85 R104 1 VRF3_2V85 220n C106 0 1u 0 01u C117 C113 VRF1_2V85 2 2u C121 VVIB_2V8 1u C124 C128 0 01u 0 1u C115 VRF1_2V85 VSS_LDO3 C3 L12 VSS_MAIN_1 VSS_MAIN_2 L10 VSS_MAIN_3 M10 J8 VSS_MAIN_4 L8 VSS_MAIN_5 VSS_MS F3 VUSB B7 VVIB D12 V5 VSSRF12 VSSRF13 V6 VSSRF14 W1 N2 VSSRF2 N3 VSSRF3 P2 VSSRF4 R2 VSSRF5 T2 VSSRF6 VSSRF7 U2 VSSRF8 U3 VSSRF9 U6 VSS_AUDIO E...

Page 35: ...a well defined startup sequence to ensure a proper system start up State power supply is connected and ON is triggered enter point of System Startup State Machine ON_OFF1 is low or ON_OFF2 is high or VCH 3 2V VRTC is active I2C_INT is high On chip oscillator calibrated and running reference and bias calibrated and running Startup Sequence from System Startup State Machine Start SD1 in active mode ...

Page 36: ... 37 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF Figure 7 Power Up and Down Sequence triggered by ON_OFF1 ...

Page 37: ...2008 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF Figure 8 Power supply start up Figure 9 Remote power on and End key power on circuit END 150 R702 VBAT VA713 ICVL0505101V150FR END END_KEY ...

Page 38: ...SIM SIM interface scheme is shown in Figure 10 SIM_IO SIM_CLK SIM_RST ports are used to communicate with BBP S GOLDradio and the SIM power supply enabled by BBP _SIM_EN SIM Interface SIM_CLK SIM card reference clock SIM_RST SIM card Async sync reset SIM_IO SIM card bidirectional reset Remote Power On 2K R409 1 3 2 2SC5663 Q403 R410 3 3M 2 2u C405 100K R412 VRTC_2V0 3 3M R408 R401 10K 1 3 2 Q401 2S...

Page 39: ... data Even the write intensive systems can take out algorithm The device is an optimum solution for large nonvolatile storage applications such as solid state file storage and other portable applications requiring non volatility The 1Gb DDP Mobile SDRAM is 1 073 741 824 bits synchronous high data rate Dynamic RAM organized as 4x16 777 216 words by 16 bits fabricated with SAMSUNG s high performance...

Page 40: ...E6 R__B UDQM H3 B6 VCC1 IO0 J5 IO1 L5 IO2 J6 L6 IO3 IO4 J7 IO5 L7 J8 IO6 L8 IO7 LDQM G3 NC1 B2 NC10 H6 K5 NC11 NC12 K6 NC13 K7 K8 NC14 NC15 M5 B3 DQ0 C4 DQ1 DQ10 K4 DQ11 L3 L4 DQ12 DQ13 M3 M4 DQ14 N3 DQ15 DQ2 C3 D4 DQ3 DQ4 D3 E4 DQ5 DQ6 E3 F4 DQ7 J4 DQ8 DQ9 K3 D8 BA1 CKE1 G8 CKE2 F6 CLE C5 H4 CLK DNU1 A2 P9 DNU10 DNU11 P10 A9 DNU2 DNU3 A10 B1 DNU4 DNU5 B10 N1 DNU6 DNU7 N10 P1 DNU8 DNU9 P2 A0 C7 C8...

Page 41: ...Data 14 for LCD 13 D13 I O Data 13 for LCD 14 D12 I O Data 12 for LCD 15 D11 I O Data 11 for LCD 16 D10 I O Data 10 for LCD 17 D9 I O Data 9 for LCD 18 D8 I O Data 8 for LCD 19 D7 I O Data 7 for LCD 20 D6 I O Data 6 for LCD 21 D5 I O Data 5 for LCD 22 D4 I O Data 4 for LCD 23 D3 I O Data 3 for LCD 24 D2 I O Data 2 for LCD 25 D1 I O Data 1 for LCD 26 D0 I O Data 0 for LCD 27 LCD ID I Menufacture ID...

Page 42: ...lumns depend on settings of the PCL 37PIN LCD Connector 10K R701 EVLC14S02050 VA708 EVLC14S02050 VA707 EVLC14S02050 EVLC14S02050 VA711 VA712 VA710 EVLC14S02050 C702 0 1u EVLC14S02050 VA709 9 28 29 3 30 31 32 33 34 35 36 37 4 5 6 7 8 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 CN701 1 10 11 12 VIO_2V62 DNI C703 100K R700 VIO_2V62 DIF_RD DIF_D 8 DIF_D 7 DIF_D 6 DIF_D 5 DIF_D 4 DIF_D 3 DIF_D 2 DIF...

Page 43: ... numeric keys are connected by Key FPCB KEYPAD AF SHUTTER 609 star 608 604 601 680 680 R601 R600 600 606 R602 680 680 R603 R607 680 VOL_UP 680 R606 R605 680 680 R604 605 VOL_DN 602 607 AF CAM 603 sharp KP_OUT 3 KP_OUT 0 KP_IN 2 KP_OUT 1 KP_IN 3 KP_OUT 0 4 KP_OUT 2 KP_OUT 4 KP_IN 1 KP_IN 1 4 KP_IN 4 END 680 R706 R707 680 UP OK 680 R708 MENU 150 SEND R702 R705 680 LEFT CLEAR SELECT VBAT VA713 ICVL05...

Page 44: ...t both the white LED backlight and flash applications for systems operating with lithium ion polymer batteries The backlight charge pump is capable of driving up to five LEDs at a total of 65mA for backlight The current sinks may be operated individually or in parallel for driving higher current LEDs To maximize power efficiency the charge pump operates in 1X 1 33X 1 5X or 2X mode where the mode o...

Page 45: ...AMERA LDO VBAT1 F4 B5 VBATCP E1 VBATLDO VIO E6 VOUT B4 D1 WPWMIN LED2 C2 C1 LED3 B1 LED4 B2 LED5 LEDFL A2 LEDGND B3 C4 RESETB F5 SBIAS SCL D5 SDA D4 SGND E5 F3 SSENS A1 T1 T2 A6 F6 T3 T4 F1 BD6095GUL D6 C1N C1P C5 C2N C6 B6 C2P A4 C3N A5 C3P CPGND A3 D3 FLASHCNT E4 GC1 GC2 E3 F2 LDO1O LDO2O E2 LED1 D2 VBAT U700 R704 1u 0 1u C708 TP700 1u C707 1u C706 C704 1u 2 2u C709 C705 10u VIO_2V62 FLASHCNT SU...

Page 47: ...nterface connector In case of KC780 mass production the JTAG interface connector will not be mount on board That is only for developing and software debugging purpose It will not be mounted on mass production PCB ON BOARD ARM9 JTAG VIO_2V62 VSD2_1V8 30 17 18 19 20 21 22 23 24 G1 G2 G3 G4 15 2 3 4 5 6 7 8 9 16 25 26 27 28 29 CN101 1 10 11 12 13 14 TRST_N TDI TMS TCK RTCK TDO _EXTRST ...

Page 48: ...ible input configuration supports two microphone inputs single ended or differential a stereo line input and a mono differential line input Four headphone drivers support fully differential headset drive providing excellent crosstalk performance and bass response maximising stereo effects and allowing the removal of large and expensive headphone capacitors The headphone outputs can also be configu...

Page 49: ...4 MCLK F5 A2 MICBIAS MODE E2 A4 OUT3 OUT4 C4 D4 RIN1 RIN2 D6 RIN3_GPI8 D5 E5 ADCDAT F4 E4 ADCLRC_GPIO1 AGND A3 AVDD A6 G5 BCLK F2 CSB_ADDR F3 DACDAT G4 DACLRC DBVDD G6 F6 DCVDD DGND E6 GPIO3_BCLK2 G2 GPIO4_DACLRC2 G3 GPIO5_DACDAT2 G1 HPGND B3 A5 U203 WM8990ECS_RV 1u C234 1u C233 C218 0 1u VBAT 100K R214 C231 1u 0 1u C212 C239 1u VIO_2V62 22u C209 4 7u C219 4 7u C205 SND_L SND_R VMIC HSO_R MIC_P HS...

Page 50: ... Use Only 3 TECHNICAL BRIEF 3 13 2 Microphone circuit Figure 23 Microphone circuit Figure 24 S GOLDradioTM Audio Front End Block Diagram MIC MIC 2 G1 3 G2 1 O 4 P SPM0204HE5 PB 3 MIC600 27p C603 C604 27p C615 0 1u 0 1u L600 C601 100nH C600 DNI 2 2u 100nH L602 C605 L601 100nH 27p C602 C606 27p MIC_N MIC_P VMIC ...

Page 51: ...ight reserved Only for training and service purposes 3 TECHNICAL BRIEF Figure 25 S GOLDradioTM Audio Front End Circuit L2 VMIC F1 MIC1_N MIC1_P G1 J1 MIC2_N MIC2_P H1 J2 EP_CM K2 EP_N EP_P G2 F2 HS_N HS_P K3 MIC_N EAR_N EAR_P VMIC MIC_P HS_MIC_N HS_MIC_P SND_L SND_R ...

Page 52: ...ammable IREF IMIN resistors IREF resistor between this pin and the GND pin to set the charge current limit determined by the following equation ICC 6820 33K 207mA The End Of Charging current is set by IMIN That can be programmed by the as following equation IEOC 550 5 1K 107mA Figure 26 USB charging circuit Add for Charging Trouble CHARGING IC C415 1u VCHG VIO_2V62 R416 100K C413 1u 33K R421 VBUS_...

Page 53: ... C1 VSS_FM1_2 VSS_FM2 B4 VSS_LO H2 VSS_PADS G8 C10 VSS_PIO VSS_RADIO_1 D2 USB_DP J7 VDD_ANA K1 A6 VDD_AUDIO VDD_CORE_1 A7 H10 VDD_CORE_2 A2 VDD_FM VDD_LO H1 G10 VDD_PADS VDD_PIO B10 VDD_RADIO_1 C2 G2 VDD_RADIO_2 VDD_USB J6 H4 VREGENABLE_H H3 VREGENABLE_L VREGIN_H J5 VREGIN_L J1 RF_N G1 F1 RF_P D1 RX_N RX_P E1 H8 SPI_CLK SPI_MISO K9 SPI_MOSI K10 SPI__CS J9 SPKR_L A5 A4 SPKR_R C4 TEST_EN UART_CTS H6...

Page 54: ...tween 7 5 and 40MHz in multiples of 250KHz or an external clock Audio Single ended stereo analogue output 16 bit 48 kHz digital audio bit stream output Baseband and Software Internal 48Kbyte RAM allows full speed data transfer mixed voice and data and full piconet operation including all medium rate packet types Logic for forward error correction header error control access code correlation CRC de...

Page 55: ...mic range AGC Soft mute and stereo blend Adjustment free stereo decoder and AFC Autonomous search tuning function up down with programmability threshold setting RDS demodulator Audio output available over Bluetooth audio interface or dedicated audio output Control of FM via Bluetooth HCI or I2C Adaptive filter to suppress narrow band interference in the FM channel Bluetoot Antenn 2 4 F Radi I O RO...

Page 56: ...s eight exposed contacts on one side The S GOLDradio is connected to the module using a dedicated eight pin connector Figure 39 Micro SD pin assignment Table 7 Micro SD memory pad assign SD mode Pin No Name Type Description 1 DAT2 I O Data bit 2 2 CD DAT3 I O Data bit 3 3 CMD I O Command response 4 VDD Power Power supply 5 CLK I Clock 6 VSS Ground Power ground 7 DAT0 I O Data bit 0 8 DAT1 I O Data...

Page 57: ... it is inserted TF_DETECT High Low Figure 30 Micro SD socket circuit with power control 100K R407 R405 100K C2 C3 C3 C5 C5 C6 C6 C7 C7 16 GND1 GND2 15 GND3 14 13 GND4 GND5 12 11 GND6 SWA 10 9 SWB 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 C1 C1 C2 S401 1u C402 27p C403 R402 4 7K 47 R414 VIO_2V62 100K R406 R415 100K 1000p C406 VMMC VSIM_2V8 C408 DNI C401 DNI 1uF C407 100K R404 R403 100K C404 DNI MMC_D 2 SIM_C...

Page 58: ... HS_MIC Headset microphone signal 3 TV_OUT TV_OUT signal 4 HSO_L Headset left sound 5 HSO_R Headset right sound 6 USB_DP REMOTE_INT USB Remote control interrupt 7 USB_DM REMOTE_ADC USB Remote control Key ADC 8 JACK_DETECT Headset detect active low 9 VBAT Battery voltage 10 VBAT Battery voltage 11 RPWRON Remote power on active high 2 0 V 12 VCHG Charger voltage 13 VCHG Charger voltage 14 DSR DSR 15...

Page 59: ... 1000 C306 0 1u L301 100nH 10 FB306 FB302 R312 12 36K R305 100u C320 R303 27p 1 5K 39p C310 C313 C303 2 2u OUT 5 VCC VIN 3 4 VIN FB305 U301 NCS2200SQ2T2G GND 2 1 47 R310 HSD1 7 HSD2 2 6 HSD2 10 SEL VCC 9 _OE 8 U302 FSUSB30UMX 3 D 5 D 4 GND HSD1 1 0 1u C301 FL301 ICVFP10181E301FR GND1 GND2 IN OUT C311 VCHG 2 2u 1 P1 P2 2 P3 3 4 P4 P5 5 6 P6 C304 FL305 EVSC5S04F050 24p R307 DNI VIO_2V62 R304 2 2K VA...

Page 60: ...neral Description The RF transceiver is integrated in S GOLDradio PMB8888 which suppors quad band operation for voice and data transfer applications The whole transceiver function is integrated in main IC PMB8888 provides 4 LNA inputs for RF receiving and two outputs for PAM input for High Low band A direct conversion receiver and a quad band polar transmitter for GSM and EDGE with integrated PGA ...

Page 61: ...rthogonal LO signals are generated by a divider by four for GSM850 900 band and a divider by two for the DCS1800 PCS1900 band Down conversion to baseband Figure 33 TX IQ 3 20 Receiver part R113 4 7K R111 390K R114 100K P3 VRAMP T5 VDET TX1 V3 W3 TX2 T_OUT3 A18 J10 PAEN M3 PAMODE U5 W2 RX1 RX1X V1 U1 RX2 T1 RX2X RX3 R1 P1 RX3X RX4 N1 RX4X M1 PABIAS R3 R4 PABS M0 H3 J3 M1 M10 F4 M2 G4 H4 M7 M8 G3 J4...

Page 62: ... Delta modulation loop The output of its associated VCO is divided by four or two respectively and connected via an output buffer to the appropriate single ended output pin This configuration ensures minimum noise level The 8PSK transmitter supports power class E2 for GSM850 and GSM900 as well as for DCS1800 and PCS1900 The digital transmitter architecture is based on a polar modulation architectu...

Page 63: ...ed 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 or receive frequency To cover the wide frequency range the VCO is automatically aligned by a binary automatic band selection BABS before each synthesizer startup 3 23 DCXO The transceiver contains a fully integrated 26MHz digit...

Page 64: ...M850_900TX 13 3 GSM900RX1 GSM900RX2 4 19 NC1 20 NC2 16 VC1 VC2 10 L LMSP43NA 782 U502 17 ANT GND1 9 GND2 12 14 GND3 GND4 15 GND5 18 5 GSM1800RX1 GSM1800RX2 5p C510 R507 1 2nH R526 NA DNI R506 C502 0 01u 2 7p C508 DNI L502 AP504 C511 5p R525 DNI AP505 1 R501 C509 2 7p 1 R502 C513 5 6p 3 9nH L507 15nH L506 L501 4 7nH 5 6p 33p C512 C501 L505 18nH 8 2p C515 AP501 AP503 8 2p C514 DNI C DNI C SW501 RF 6...

Page 65: ...2 Reserved 13 14 15 GND Ground 16 DCS PCS_OUT RF Output DCS PCS DC Blocked Pad GND PAD GRID Ground pad grid is device underside 3 25 Power Amplifier Module 3 26 Mode Selection MODE circuitry selects GMSK modulation logic 0 or EDGE modulation logic 1 VRAMP controls the output power for GMSK modulation and provides bias optimization for EDGE modulation depending on the state of MODE control NA L503 ...

Page 66: ...l right reserved Only for training and service purposes LGE Internal Use Only 4 PCB layout 4 PCB layout 4 1 Main PCB component placement TBD Main PCB Top FEM PAM MOTOR Baseband 26M 32K Charging IC SIM MicroSD BT Antenna Mobile Switch Sub PMIC ...

Page 67: ...Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 4 PCB layout Main PCB bottom Bluetooth Battery Connector MMIC Audio AMP Accel Sensor 18pin I O MEMORY Camera connector ...

Page 68: ... Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 PCB layout KEY PCB Bottom KEY PCB TOP LCD Back light Charge pump LCD connector LED Dome ...

Page 69: ...g and service purposes 4 PCB layout F KEY TOP F SOCKET Hall IC Camera Key Volume Key MIC Flash LED Charge pump Flash LED F KEY TOP F SOCKET Camera Key MIC Flash LED Charge pump Flash LED F LCD TOP F LCD Bottom Backup battery Speaker Receiver F LCD TOP F LCD Bottom Backup battery Speaker Receiver ...

Page 70: ...y 5 TROUBLE SHOOTING 5 TROUBLE SHOOTING 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 ...

Page 71: ...Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 TROUBLE SHOOTING 5 2 Power on Trouble Check Points Battery Voltage Need to over 3 35V Power On Key detection PWRON signal TP1 END 150 R702 VBAT VA713 ICVL0505101V150FR END END_KEY 100K R413 3 2 Q402 2SC5663 1 10K R411 ON END_KEY_IN KP_IN 6 KP_OUT 0 END_KEY ...

Page 72: ...PCB when push the power key Check PWRON signal of TP1 Î 0V Check the BACKUP Battery Check Combination CN101 or Replace CN101 Key PCB Connector Check solder Q401 Yes Yes Yes Yes No No No No Connect power supply to the DUT Vbat over 3 35V Check the all LDO s output Is it correct Check solder whole LDO parts or replace it Replace main PCB Is the 26MHz clock from TP2 X101 of U104 Check solder Replace ...

Page 74: ...3 C303 2 2u FB305 VCHG P2 2 P3 3 4 P4 6 P6 C304 FL305 EVSC5S04F050 24p 6 P6 FL307 EVSC5S04F050 1 P1 P2 2 P3 3 4 P4 P5 5 C312 DNI MIC_GND FM_ANT 75 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 TROUBLE SHOOTING 5 3 Charging trouble Check Points Connection of TA check TA voltage 5 1V Charging Current Path component voltage drop Ba...

Page 75: ...E SHOOTING No START 18pin IO CN302 Is soldered Source pin of TP1 FL302 5 1V Resolder the CN302 The TA can be broken Change other TA then retest Yes No No 18pin Output pin TP2 D101 4 2V Check solder D101 Yes Yes Yes Battery voltage is over 3 35V No charging until battery Voltage goes up to 3 35V Charge is operating properly Yes ...

Page 76: ... 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 INOUT_B2 8 FB303 C314 1u C316 1u INOUT_B2 INOUT_B3 7 6 INOUT_B4 ICVE10184E150R101FR FB309 5 G1 10 G2 1 INOUT_A1 INOUT_A2 2 3 INOUT_A3 INOUT_A4 4 INOUT_B1 9 8 DIF_CD DIF_WR DIF_RD DIF_CS KP_IN 5 KP_IN 6 KP_OUT 0 KP_OUT 1 KP_OUT 2 DIF_D 14 DIF_D 15 KP_OUT 3 KP_OUT 4 DIF_VSYNC DIF_RESET BL_RESETB I2C_SDA I2C_SCL FLASHCNT DTX0 DTX1 DTX3 DIF_D 4 DIF_D 5 DI...

Page 77: ...nal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 TROUBLE SHOOTING Check insulators Check connection of LCD connector Check connection of F LCD FPCB connector ...

Page 78: ...ART Is F LCD normal Assemble Replace F LCD Yes N Check LCD connector combination then LCD test with New LCD Are insulators on LCD and Key PCB Replace Insulators N Signal is normal in 2 62V TP4 Signal On CN301 Check solder and repair CN301 Yes N Signals are normal in DIF_CD TP1 CS TP2 WR TP3 On CN301 Check solder and repair FL303 N Yes Yes ...

Page 79: ...1 9 8 INOUT_B2 INOUT_B3 7 6 INOUT_B4 ICVE10184E070R100FR FL202 5 G1 10 G2 1 INOUT_A1 INOUT_A2 2 TP220 5 G1 G2 10 INOUT_A1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 8 INOUT_B2 7 INOUT_B3 INOUT_B4 6 FL203 ICVE10184E070R100FR R226 4 7K 10u C273 CAM_SCL CAM_DCK CAM_SDA CAM_TRIG CAM_MCLK SPK_N SPK_EAR_N SPK_SEL AR_N CAM_D6 CAM_D4 CAM_D2 CAM_D0 CAM_VS CAM_HS CAM_XRST CAM_STRB CAM_D7 CAM_D5 CAM_D3 CA...

Page 80: ...ROUBLE SHOOTING START Replace New Camera module then work properly Assemble No Yes Check the connection of connectors 1 2 Replace the F CAM FPCB No Replace the camera module Replace new F CAM FPCB then work properly Yes Check the power lines of T1 T4 are ON Replace the U202 U204 on the Main PCB Replace the Main PCB Yes No ...

Page 81: ... F3 DACDAT G4 DACLRC DBVDD G6 F6 DCVDD DGND E6 GPIO3_BCLK2 G2 GPIO4_DACLRC2 G3 GPIO5_DACDAT2 G1 HPGND B3 A5 U203 WM8990ECS_RV 1u C234 1u C233 C218 0 1u VBAT 100K R214 C231 1u 0 1u C212 C239 1u VIO_2V62 22u C209 4 7u C219 4 7u C205 SND_L SND_R VMIC HSO_R MIC_P HS_MIC_P MIC_N HS_MIC_N FM_SND_L FM_SND_R 26M_TVOUT I2S2_TX I2S_WS I2S2_WA0 I2S_CLK I2S_SDO HSO_L MCLK_ATI I2C_SCL I2C_SDA SPK_N SPK_P SPK R...

Page 82: ... is Low 0V Assemble Check the soldering of U203 or replace Main PCB Yes Check the soldering of speaker and components on FPCB No No Replace the F LCD FPCB Receiver Speaker Signal TP3 High 1 6V Replace Receiver Yes Yes No TP1 Signal C242 C241 TP1 TP3 Check the soldering of U206 or replace the U206 on the main PCB Output Signal U206 pin 3 pin 9 TP2 Receiver Speaker Signal L100 L101 ...

Page 83: ...s 5 TROUBLE SHOOTING 5 7 Microphone trouble Check Points Microphone hole MICBIAS Signal comes from Audio signal level of the Microphone Soldering of components START Check the signal TP1 level at each side of MIC600 Check MIC Bias line Yes No No Check microphone sound hole Replace microphone MIC600 Connect the F KEY FPCB or replace it Yes MIC bias TP2 ON 2 5V when call L600 Yes No Check the connec...

Page 84: ...e Only 5 TROUBLE SHOOTING 5 8 Ear MIC Jack Detection trouble START Is the status of FB308 TP1 low Assemble Solder FB308 again Yes No No Check the Ear Jack detection Solder again or Replace CN302 The main board has a problem Replace Main PCB Yes Check the soldering status of CN302 CN302 TP1 Ear Jack Signal FB308 ...

Page 85: ...ck Points Soldering wire and driving IC U101 START Assemble Yes No Check Vibrator wire soldering Replace Vibrator Check the voltage difference of TP1 TP2 is 3V Solder again or Replace U101 on Socket FPCB TP1 TP2 VIBRATOR U101 2 GND VIN 1 3 VOUT SUY98005LT1G 100K R103 C103 1u 47nH L101 47nH L103 1u VVIB_2V8 VBAT C102 0 1u C104 R102 100nH L102 10 R101 1K VIB VIB ...

Page 86: ... Points Signal path is connected well Analog SW is working properly Slide Key Matrix and LEDs on KEY PCB TP1 TP4 680 R706 R707 680 UP OK 680 R708 MENU SEND R705 680 LEFT CLEAR SELECT RIGHT 680 R703 DOWN KP_IN 6 KP_OUT 0 KP_OUT 2 KP_OUT 3 KP_OUT 4 KP_IN 5 KP_OUT 1 KP_OUT 0 4 KP_IN 5 6 VOUT B4 D1 WPWMIN LED2 C2 C1 LED3 B1 LED4 B2 LED5 LEDFL A2 F5 SBIAS F3 SSENS A1 T1 T2 A6 F6 T3 T4 F1 BD6095GUL D3 F...

Page 87: ...8 604 601 680 680 R601 R600 600 606 R602 680 680 R603 R607 680 VOL_UP 680 R606 R605 680 680 R604 605 VOL_DN 602 607 AF CAM 603 sharp KP_OUT 3 KP_OUT 0 KP_IN 2 KP_OUT 1 KP_IN 3 KP_OUT 0 4 KP_OUT 2 KP_OUT 4 KP_IN 1 KP_IN 1 4 KP_IN 4 TP116 R126 22K TP117 VSS_FLASH E7 A6 VREF1 VREF2 L3 C9 PO_RESET_N_SCAN_OUT2 E9 RESET2_N_VSENSE2 D9 ON_OFF_SCAN_RESET D8 LPBCK_ECHO IREF2 L4 E6 FLASH_SINK E8 BL3_PWM _ D1...

Page 88: ...ng and service purposes LGE Internal Use Only 5 TROUBLE SHOOTING START Check VBAT TP3 on F KEY MLED TP4 on KEY PCB Check BATTERY Replace U104 SGR U101 BD6095 No No Check All of LEDs solder Yes Yes Yes Check GPIO signal KEY_BL TP2 SU B_KEY_BL TP1 Voltage KEY_LED is operating ...

Page 89: ...100K R406 R415 100K 1000p C406 VMMC VSIM_2V8 C408 DNI C401 DNI 1uF C407 100K R404 R403 100K C404 DNI MMC_D 2 SIM_CLK SIM_RST MMC_D 0 MMC_D 1 MMC_CMD SIM_IO MMC_DETECT MMC_CLK MMC_D 3 90 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 TROUBLE SHOOTING 5 11 SIM uSD trouble SIM Check Points Power is working Socket soldering Proper SI...

Page 90: ... 91 Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 TROUBLE SHOOTING TP2 SIM_CLK TP3 SIM_IO TP1 VSIM_2V8 TP3 TP1 TP2 TP4 TP5 ...

Page 91: ...Only for training and service purposes 5 TROUBLE SHOOTING START S401 soldered well Check Proper SIM Card Assemble Resolder connector Replace Main Board Yes Yes No Check All of SIM card voltage KC780 Series support 1 8V 2 9V SIM only Resolder connector Yes No Check TP1 2V8 TP2 TP3 ...

Page 92: ...TING MicroSD Check Points Power is working Socket soldering Card detect is working START MicroSD socket Detect pins TP4 works well Check proper MicroSD Resolder it check data line MicroSD D0 D3 is 2 9V Signal Replace Main Board Yes Yes No Check Micro SD card voltage VMMC 2 9V TP5 Card insert Card eject MicroSD_DETECT SIGNAL Assemble ...

Page 93: ...RF Troubleshooting 5 12 1 General Circuits Troubleshooting Fig 1 Troubleshooting flowchart of general circuits General Circuits Check Power Circuit 1 Set HP8960 as below 9 Active Cell GPRS 9 62ch 5level TCH 9 62ch 60dBm BCH 2 Establish Spectrum Analyzer Oscilloscope Check DCXO Circuit General function is OK YES YES Check RF Switch Circuit YES ...

Page 94: ...IO E1 VAUDIO D11 VAUX VBAT_AUDIO E2 VBAT_BSW_USB_MMC C6 VBAT_LDO1 E12 VBAT_LDO2 B8 B2 VBAT_RF13 A5 VDDCHARGE VDDDIG T6 P4 VDDMS VDDPLL W6 SENSE_IN1 D5 SENSE_IN2 C4 A1 NC1 A19 NC2 NC3 W19 M0 H3 J3 M1 M10 F4 M2 G4 H4 M7 M8 G3 J4 M9 CHARGE_UC_SCAN_IN1 C8 C5 CH_GATE A4 CH_SOURCE K1 AGND_MS1 AGND_MS2 K4 VSD1_1V5 C126 1u C103 1u L102 47nH TP105 1 R103 12p C111 C114 0 01u 1u C105 VSIM_2V8 VMMC 1u VSD2_1V...

Page 95: ...ST RPWRON 96 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 TROUBLE SHOOTING 5 12 3 DCXO circuit Fig 4 Debugging flowchart of DCXO circuit Fig 5 DCXO circuit X100 DCXO Circuit Replace X100 DCXO is OK See next part YES Is the waveform of TP X100 similar to Fig5 NO TP TP ...

Page 96: ... The output voltage of X100 is 820mVp p 5 12 4 RF Switch Mobile Switch circuit Fig 7 Debugging flowchart of RF S W circuit 9 Part Description of RF Switch SW500 Mobile Switch RF S W Connector U104 Baseband Processor including RF transceiver 9 Check point of RF S W Mobile S W RF S W Circuit Is RF S W short between TP1 TP2 Replace SW500 Check the next part YES NO ...

Page 97: ...18 5 GSM1800RX1 GSM1800RX2 5p C510 R507 1 2nH R526 NA DNI R506 C502 0 01u 2 7p C508 DNI L502 AP504 C511 5p R525 DNI AP505 1 R501 C509 2 7p 1 R502 C513 5 6p 3 9nH L507 15nH L506 L501 4 7nH 5 6p 33p C512 C501 L505 18nH 8 2p C515 AP501 AP503 8 2p C514 DNI C DNI C SW501 RF 600 ANT G1 G2 RF 3 3nH L508 C503 120p 6 8p R508 AP502 VC2 VC1 98 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right...

Page 98: ...3 RF Receiver path Troubleshooting 5 13 1 RF Receiver part troubleshooting Fig 9 Troubleshooting flowchart of RF Receiver path START 1 Set HP8960 as below 9 Active Cell GPRS 9 62ch 5level TCH 9 62ch 60dBm BCH 2 Establish Spectrum Analyzer Oscilloscope Check FEM Circuit After download S W Calibrate it General Circuits Troubleshooting YES YES ...

Page 99: ...al Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 TROUBLE SHOOTING 5 13 2 FEM Circuit Fig 10 Debugging flowchart of FEM circuit 9 Part Description of FEM Application Mode VC1 TP1 VC2 TP2 Tx High Low EGSM Rx Low Low Tx Low High DCS1800 PCS1900 Rx Low Low 9 Check point of FEM Fig 11 FEM circuit U501 FEM Circuit Check the next part Check Control...

Page 100: ...ll right reserved Only for training and service purposes LGE Internal Use Only 5 TROUBLE SHOOTING 9 When GSM band called it must seem as below yellow is TP1 blue is TP2 9 When D PCS band called it must seem as below yellow is TP1 blue is TP2 ...

Page 101: ...h Troubleshooting Fig 12 Troubleshooting flowchart of RF Transmitter path START Check Transmitter Circuit 1 Set HP8960 as below 9 Active Cell GPRS 9 62ch 5level TCH 9 62ch 60dBm BCH 2 Establish Spectrum Analyzer Oscilloscope Check PAM Circuit YES YES After download S W Calibrate it General Circuits Troubleshooting YES YES Check Control signal of FEM Replace PCB ...

Page 102: ...5 TROUBLE SHOOTING 5 14 1 Transmitter Circuit Fig 13 Transmitter circuit U104 9 Check point of PAM Transmitter output power R505 L572 is approximately 3dBm 5 14 2 PAM Circuit 9 PAM circuit contains as below Band select switching circuitry BS to select GSM Logic 0 and DCS PCS Logic1 VRAMP controls the level of output power for GMSK modulation and shape of Tx burst For GMSK operation set the PA_EN i...

Page 103: ... service purposes 5 TROUBLE SHOOTING High Band GMSK Tx 1 1 0 Active High band EDGE Tx 1 1 1 X X don t care Fig 14 Debugging flowchart of PAM circuit 9 When EGSM band called it must seem as below Is PAM Control Signal OK Replace PCB Check the next part YES NO PAM Circuit Is PAM Output OK Replace PAM NO ...

Page 104: ...ght 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 TROUBLE SHOOTING 9 When D PCS band called it must seem as below PA_MODE2 PA EN TX_RAMP PA_BAND PA_MODE ...

Page 105: ... 2 1 FEM Circuit PA_MODE TX_RAMP PA_BAND NA L503 1 R511 1 R514 3 BS BY_CAP1 13 9 BY_CAP2 DCS_PCS_IN 1 12 DCS_PCS_OUT GND1 14 11 GND2 8 GND3 GSM850_900_IN 7 GSM850_900_OUT 10 MODE_SELECT 2 PGND 15 6 TX_EN VBATT 4 VRAMP 5 TQM7M5005 U501 VBAT 100p C523 DNI L504 100p C507 R516 4 7nH 1 R509 1 R513 27p C521 1000p C520 R512 1 2K 22u C506 C524 820p C522 100p TXLB TXHB PA_EN PA_MODE TX_RAMP PA_BAND ...

Page 106: ...ll right reserved Only for training and service purposes LGE Internal Use Only 6 Download S W upgrade 6 Download S W upgrade 6 1 Download program user guide 1 After GSMULTI folder copy paste C 2 MultiGSM exe execution file execute KC780 KC780 ...

Page 107: ...t 2008 LG Electronics Inc All right reserved Only for training and service purposes 6 Download S W upgrade 6 2 Multi Download Program Setting Model Base Multi Download Program Execution Setting Configuration Setting Completed KC780 KC780 ...

Page 108: ...right 2008 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 6 Download S W upgrade Stand by Condition Wait phone connecting confirm Phone connection KC780 KC780 ...

Page 109: ...110 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 7 BLOCK DIAGRAM 8M 2012 module 8bit parallel I F 2 1Gb LMSP43NA 7 82 7 BLOCK DIAGRAM ...

Page 110: ... EBU_AD8 EBU_AD9 W16 R18 EBU_ADV_N EBU_BC0_N N19 P15 EBU_BC1_N U16 EBU_BFCLKI P17 EBU_BFCLKO N16 EBU_CAS_N EBU_CKE T18 R17 EBU_CS0_N R19 EBU_CS1_N EBU_CS2_N T17 EBU_CS3_N P18 EBU_RAS_N K19 EBU_RD_N P19 EBU_SDCLKI U15 K18 EBU_A8 EBU_A9 L17 R14 EBU_AD0 EBU_AD1 W18 EBU_AD10 V16 U12 EBU_AD11 W15 EBU_AD12 EBU_AD13 W14 EBU_AD14 V15 W13 EBU_AD15 EBU_AD2 V18 W17 EBU_AD3 T15 EBU_AD4 EBU_AD5 U14 EBU_AD6 V17...

Page 111: ...LCDD6 LCDD7 E1 H1 LCDD8 GPIOD6 M2 GPIOE0 P4 P3 GPIOE1 GPIOE2 N3 GPIOE3 N2 GPIOE4 R4 L2 GS INT0B B14 I_TESTA N12 I_VDD_1 E5 I_VDD_2 F11 L5 I_VDD_3 K11 I_VDD_4 I_VDQT_1 J13 I_VDQT_2 K13 LCDD0 F3 GPIOA8 C2 GPIOA9 C6 C13 GPIOC0 GPIOC1 B12 GPIOC2 B13 A12 GPIOC3 C12 GPIOC4 GPIOC5 B11 GPIOC6 A11 A13 GPIOC7 GPIOD0 R2 N1 GPIOD1 M1 GPIOD2 R3 GPIOD3 P1 GPIOD4 P2 GPIOD5 GPIOA0 B2 A2 GPIOA1 B6 GPIOA11 A6 GPIOA...

Page 112: ...EVSC5S04F050 24p R307 VRTC_2V0 DNI VIO_2V62 R304 2 2K VAUDIO_2V5 R314 200 10u C307 VBAT 100p C302 1u C315 6 7 8 9 G1 G2 G3 G4 VIO_2V62 CN304 1 10 2 3 4 5 9 G1 G2 G3 G4 36K R306 12 13 14 15 16 17 18 19 2 20 3 4 5 6 7 8 INOUT_B2 8 7 INOUT_B3 INOUT_B4 6 CN305 1 10 11 FL304 ICVE10184E150R101FR G1 5 G2 10 INOUT_A1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_...

Page 113: ...3 R416 100K R410 3 3M R415 100K 2 2u C405 1000p C406 3 100K R412 CN401 D1 D2 1 2 C413 VMMC VSIM_2V8 1u C408 VRTC_2V0 10K R411 DNI C401 DNI 33K R421 1uF C407 3 3M R408 100K R404 VBUS_USB R403 100K R420 5 1K 15K R419 R401 10K C409 VBAT 2 2u 1 3 2 100K R417 Q401 2SC5663 C404 DNI 100p R418 1K C410 12 2 VUSB _CHG 4 _EN 5 3 _PPR ISL9221 11 BAT GND 8 IMIN 6 IUSB 7 IVDC 9 13 PGND 10 USB_BYP VDC 1 VDC_BYP ...

Page 114: ...RT_RX K7 UART_TX J8 USB_DN K6 PCM_CLK H9 PCM_IN K8 H7 PCM_OUT J10 PCM_SYNC PIO_0 A10 A9 PIO_1 PIO_10 A8 C6 PIO_11 PIO_2 B8 B9 PIO_3 PIO_4 E9 E8 PIO_5 PIO_6 F9 F10 PIO_7 PIO_8 C5 B7 PIO_9 AIO_0 K4 J4 AIO_1 B5 AUX_DAC AU_REF A3 CLK_32K C9 B3 FILT_EXT FM_N A1 B1 FM_P C7 I2C_CLK I2C_DATA C8 K3 LO_REF PCM2_CLK D9 PCM2_IN E10 PCM2_OUT D8 PCM2_SYNC D10 R503 U503 BLUECORE5 FM 100K 0 01u C547 DNI L504 C502...

Page 115: ...1 VA712 VA710 EVLC14S02050 R705 680 LEFT CLEAR C702 VA703 0 1u EVLC14S02050 VA709 9 SELECT 28 29 3 30 31 32 33 34 35 36 37 4 5 6 7 8 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 VBAT CN701 1 10 11 12 1u C707 1u C706 VIO_2V62 DNI C703 VA705 VA706 VA713 ICVL0505101V150FR 1u C704 1u C710 R716 10 R717 10 R715 12K R714 12K 1u C700 C701 1u LD701 VBAT LD700 RIGHT 2 2u C709 100K R700 END 680 R703 R709 0...

Page 116: ...30125BG 12 2 5 1V8_VDD_IO 1V2_VDD_L 1V8_VDD_SD 2V8_AF 2V8_VDD_SA 1V2_VDD_L 2V8_AF 29 30 17 18 19 20 21 22 23 24 G1 G2 G3 G4 13 14 15 2 3 4 5 6 7 8 9 16 25 26 27 28 CN101 1 10 11 12 26 27 28 29 30 17 18 19 20 21 22 23 24 G1 G2 G3 G4 10 11 12 13 14 15 2 3 4 5 6 7 8 9 16 25 1V8_VDD_SD CN102 1 CAM_D6 CAM_D4 CAM_D2 CAM_D0 CAM_VS CAM_HS CAM_XRST CAM_STRB CAM_D7 CAM_D5 CAM_D3 CAM_D1 CAM_SCL CAM_TRIG CAM_...

Page 117: ...2 NC 3 OUT C604 27p VA604 C615 0 1u 0 1u L600 C601 VA603 100nH VIO_2V62 VBAT LD600 LEWWS44 E VOL_UP 680 R606 R605 680 680 R604 C600 DNI 605 ICVL0505101V150FR VA600 VOL_DN 602 VA602 6 7 8 9 G1 G2 G3 G4 1 10 11 12 13 14 15 16 17 18 19 2 20 3 4 5 VBAT CN600 VA601 2 2u 100nH L602 C605 R610 10 VA608 L601 100nH R631 DNI VIO_2V62 R608 DNI TP603 C614 0 1u TP600 27p C602 C606 27p 607 AF CAM VA606 603 sharp...

Page 118: ...54 6 7 8 9 G1 G2 G3 G4 37 38 39 4 40 41 42 43 44 45 46 47 48 49 5 50 23 24 25 26 27 28 29 3 30 31 32 33 34 35 36 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 C106 CN102 1u BAT100 VRTC_2V0 VBAT VBAT L100 KP_IN 5 DIF_CS DIF_CD DIF_WR DIF_RD DIF_CS DIF_CD DIF_WR DIF_RD 100nH DIF_D 0 FLASHCNT DTX0 DTX1 DTX3 DIF_VSYNC DIF_RESET KP_OUT 0 KP_OUT 4 KP_OUT 3 KP_OUT 2 KP_OUT 1 KP_IN 6 DIF_D 10 DIF_D 9 DIF_D 8...

Page 119: ... 7 8 9 10 11 12 1 2 11 12 2 3 4 7 8 11 12 C D U101 2 GND VIN 1 3 VOUT LD101 SUY98005LT1G C108 2 2u R106 100K 100K R105 150K R104 1u L104 C105 47n OUT PGND 7 RESET 14 6 SW VBAT 100K R103 U102 4 AGND CT 1 EN_SET 2 3 FLEN FLGND 12 10 FLINH 13 FLOUTA 11 FLOUTB 9 GND G_SLUG 15 IN 5 8 AAT1271IWO T1 C103 1u 47nH L101 10u C106 47nH L103 1u VVIB_2V8 VBAT C102 0 1u C104 R102 100nH L102 10 R101 1K C101 VBAT ...

Page 126: ... sound U302 I O connector Can t charge download SW and use the Ear MIC U302 Analog Switch for USB Can t operate USB U206 Analog switch for Speaker and receiver No sound U101 Memory No power on CN401 Battery connector No power on U404 Audio AMP No sound through Speaker and Ear mic U503 BT and FM radio chip Can t operate BT and FM radio U303 Accel IC No accel sensing CN305 Main Key B to B connector ...

Page 127: ...Rx sensitivity No service U501 TQM7M5005 Can t make a call Low TX Power No service S401 SIM MMC Connector Can t operate SIM and MMC U202 U204 PMIC for 8MP Camera Can t operate camera Q401 Q403 TR for power on No Power on U401 ISL9221 Charging IC Can t charge X102 Crystal No booting CN304 Main Socket B to B connector Can t operate Camera Flash and vibrator U104 PMB8888 No power on X101 TCXO 26MHz N...

Page 129: ...ronics Inc All right reserved Only for training and service purposes CN700 Slide key Main B to B connector No power on No LCD display No sound U700 LCD backlight charge pump No LCD display Q700 TR for Leds No slide key backlights CN701 LCD Connector No LCD display ...

Page 136: ...ics Inc All right reserved Only for training and service purposes LGE Internal Use Only 11 RF Calibration 11 RF Calibration Ⅶ 11 1 Test Equipment Setup 11 2 Calibration Step 2 1 Turn on the Phone 2 2 Execute HK_30 exe 4 00 V 0 000 A ...

Page 137: ...LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 11 RF Calibration 2 3 Click SETTING Menu 2 4 Setup Ezlooks menu such as the following figure ...

Page 138: ... Internal Use Only 11 RF Calibration 2 5 Setup Line System menu such as the following figure 2 6 Setup Logic operation such as the following figure PWR Power Supply CELL Call Test Equipment Setup UART Port Operation Mode 1 By Pass not control by GPIB 2 Normal control by GPIB Adjust the number of times ...

Page 139: ...E Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 11 RF Calibration 2 7 Select MODEL 2 8 Click START for RF calibration 2 9 RF Calibration finishes ...

Page 140: ...der Notices 1 The state of Phone is test mode during the CALIBRATION 2 Calibration program automatically changes either normal mode or ptest mode 3 RF Calibration steps as follow TX Channel compensation EGSM DCS PCS EDGE EGSM EDGE DCS EDGE PCS RX Channel compensation EGSM DCS PCS 4 Phone Operation Mode Ptest Mode Saving format year month day_PASS Saving format year month day_PASS Normal Mode ...

Page 141: ...All right reserved Only for training and service purposes 12 STAND ALONE TEST 12 STAND ALONE TEST Ⅷ 12 1 Test Program Setting Set COM Port Check PC Baud rate Confirm EEPROM Delta file prefix name mpelite Click Update Info for communicating Phone and Test Program ...

Page 142: ...ning and service purposes LGE Internal Use Only 12 STAND ALONE TEST For the pu rpose of the Standalone Test Change the Phone to ptest mode and then Click the Reset bar Select Non signaling in the Quick Bar menu Then Standalone Test setup is finished Connected Not Connected ...

Page 143: ...rvice purposes 12 STAND ALONE TEST 12 2 Tx Test Click Non signaling mode b ar and then confirm OK text in the command line Put the number of TX Channel in the ARFCN Select Tx in the RF mode menu and PCL in the PA Level menu Finally Click Write All bar and try the efficiency test of Phone Change ptest mood ...

Page 144: ...ernal Use Only 12 STAND ALONE TEST 12 3 Rx Test Put the number of RX Channel in the ARFCN Select Rx in the RF mode menu Finally Click Write All bar and try the efficiency test of Phone The Phone must be chang ed normal mode after finishing Test Change the Phone to normal mode and then Click the Reset bar ...

Page 146: ...th Test 1 2 1 Enter Test Mode 1 2 2 OnOff Test 1 2 3 Headset Test 1 2 4 BT Test1 1 2 5 BT Test2 1 2 6 Xhtml Compose Print 1 2 7 Xhtml Print Test 3 3 Layer1 Info 4 Call Timer 3 Eng Mode 6 MF TEST 5 Factory Reset 2 Model Version 3 1 Cell environ 3 2 1 Mobility 3 2 2 RadioRes 3 2 1 Gprs 6 2 1 BacklightOn 6 2 2 BacklightOff 6 3 1 Audio Test 2 1 Version 3 2 PS Layer Info 3 4 Reset Information 3 5 Memor...

Page 148: ...ight 2008 LG Electronics Inc All right reserved Only for training and service purposes 1 2 3 4 5 6 7 8 9 12 13 15 16 18 20 21 23 17 19 14 11 10 28 29 30 31 33 34 35 36 37 38 39 40 41 43 46 48 52 53 54 60 61 63 64 62 58 57 55 50 46 51 45 47 42 44 24 25 22 26 27 59 32 56 49 ...

Page 149: ...14 EXPLODED VIEW REPLACEMENT PART LIST 150 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes A B C D E F G H I A B C D E F G H I ...

Page 150: ...ty Without Color 47 4 MCCC00 CAP EARPHONE JACK MCCC0058301 COMPLEX empty Without Color 48 4 MCCF CAP MOBILE SWITCH MCCF0053901 COMPLEX empty Without Color 61 4 MCCG00 CAP MULTIMEDIA CARD MCCG0015301 COMPLEX empty Without Color 50 4 MCJN00 COVER REAR MCJN0089401 MOLD PC LEXAN EXL4419 Without Color 49 4 MDAD00 DECO CAMERA MDAD0039201 CUTTING PMMA MR 200 Without Color 54 4 MDAD01 DECO CAMERA MDAD0038...

Page 151: ...Q0031201 Light Silver 4 ABGF00 BUTTON ASSY MAIN ABGF0006601 Without Color E 29 4 ABGG00 BUTTON ASSY SUB ABGG0006501 Without Color C 10 4 ACGS00 COVER ASSY SLIDE UPPER ACGS0022701 Without Color B 5 MCJW00 COVER SLIDE UPPER MCJW0021301 CASTING Al Alloy Without Color 7 5 MDAP00 DECO SLIDE UPPER MDAP0004001 MOLD PC LUPOY SC 1004A Without Color 3 5 MFBC00 FILTER SPEAKER MFBC0042901 COMPLEX empty Withou...

Page 152: ...7 4 MLAZ00 LABEL MLAZ0038303 PRINTING empty White 4 MPBH00 PAD MIKE MPBH0040001 COMPLEX empty Without Color 32 4 MTAB00 TAPE PROTECTION MTAB0261201 COMPLEX empty Without Color 1 4 MTAC00 TAPE SHIELD MTAC0077901 COMPLEX empty Without Color 16 4 MTAC01 TAPE SHIELD MTAC0081001 COMPLEX empty Without Color 4 MWAC00 WINDOW LCD MWAC0105602 Without Color A 2 5 ADCA00 DOME ASSY METAL ADCA0085501 MAIN Witho...

Page 153: ...08 LG Electronics Inc All right reserved Only for training and service purposes 14 EXPLODED VIEW REPLACEMENT PART LIST Level Location No Description Part Number Spec Color Remark 5 MCBA01 CAN SHIELD MCBA0036301 PRESS STS 0 2 Without Color 33 ...

Page 154: ...604 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C605 CAP CHIP MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 7 C606 CAP CHIP MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 7 C607 CAP CHIP MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 7 C608 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 7 C609 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 7 C610 CAP CHIP MA...

Page 155: ...SMD 100pF 1005 7 VA603 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA604 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA605 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA606 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA607 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA608 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA609 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA610 VARISTOR SEVY0001001 14 V S...

Page 156: ...3 0 1 uF 10V K X7R HD 1005 R TP 7 C704 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C705 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 7 C706 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C707 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C708 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005...

Page 157: ...0212 12 Kohm 1 16W F 1005 R TP 7 R716 RES CHIP MAKER ERHZ0000206 10 ohm 1 16W F 1005 R TP 7 R717 RES CHIP MAKER ERHZ0000206 10 ohm 1 16W F 1005 R TP 7 R730 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 7 U700 IC EUSY0230104 CSP 36 PIN R TP SUB PMIC ALC 2LDO_150mA 1 33X IC Sub PMIC 7 VA700 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA701 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA702 VA...

Page 158: ... 0 9 Header 9 CN951 CONNECTOR BOARD TO BOARD ENBY0047701 30 0 4 mm STRAIGHT H 1 0 SOCKET 0 40MM STRAIGHT FEMALE SMD R TP 8 SPCY PCB FLEXIBLE SPCY0152501 POLYI mm MULTI 4 6 SVCY00 CAMERA SVCY0021501 CMOS MEGA 8M AF 1 2 5 12 7x18x8 63t F PBC Full module 18pF 5 SACY00 PCB ASSY FLEXIBLE SACY0085901 SOCKET 37 6 SACE00 PCB ASSY FLEXIBLE SMT SACE0073701 SOCKET 7 SACC00 PCB ASSY FLEXIBLE SMT BOTTOM SACC00...

Page 159: ...PCY00 PCB FLEXIBLE SPCY0153101 POLYI mm DOUBLE 5 SJMY00 VIBRATOR MOTOR SJMY0007105 3 V 0 08 A 10 2 7 12mm 3V 12000 RPM 38 4 SAFF00 PCB ASSY MAIN SMT SAFF0197310 5 MLAZ00 LABEL MLAZ0038301 PID Label 4 Array Without Color 5 SAFC00 PCB ASSY MAIN SMT BOTTOM SAFC0115401 6 C130 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C131 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 ...

Page 160: ... 1005 R TP 6 C230 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C231 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C232 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C233 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C234 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C237 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP...

Page 161: ... TC 1005 R TP 6 C303 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C304 CAP CHIP MAKER ECZH0000901 24 pF 50V J NP0 TC 1005 R TP 6 C305 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C306 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C307 CAP TANTAL CHIP ECTH0004807 10 uF 10V M STD 1608 R TP empty empty 55TO 125C empty empty empty empty 6 C308 CAP CHIP M...

Page 162: ...P MAKER ECZH0001216 220 nF 10V K X5R TC 1005 R TP 6 C536 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C537 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C538 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C539 CAP CHIP MAKER ECZH0001126 820 pF 50V K X7R HD 1005 R TP 6 C540 CAP CHIP MAKER ECZH0001126 820 pF 50V K X7R HD 1005 R TP 6 C541 CAP CERAMIC CHIP ECCH0...

Page 163: ...hm 1005 Bead 6 FB305 FILTER BEAD CHIP SFBH0008102 1800 ohm 1005 Bead 6 FB306 RES CHIP MAKER ERHZ0000402 10 ohm 1 16W J 1005 R TP 6 FB307 RES CHIP MAKER ERHZ0000402 10 ohm 1 16W J 1005 R TP 6 FB308 FILTER BEAD CHIP SFBH0008103 1000 ohm 1005 chip bead 200mA DCR0 9ohm SMD R TP 6 FB309 FILTER EMI POWER SFEY0010501 SMD SMD 18 V 4ch EMI_ESD Filter 100Ohm 15pF Pb free 6 FB501 FILTER BEAD CHIP SFBH0008101...

Page 164: ...m 1 16W J 1005 R TP 6 R107 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R108 RES CHIP MAKER ERHZ0000441 22 ohm 1 16W J 1005 R TP 6 R110 RES CHIP MAKER ERHZ0000441 22 ohm 1 16W J 1005 R TP 6 R112 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R115 RES CHIP MAKER ERHZ0000267 3300 ohm 1 16W F 1005 R TP 6 R116 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R117 RES CHIP MA...

Page 165: ...6 R223 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R224 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R225 RES CHIP MAKER ERHZ0000485 4700 ohm 1 16W J 1005 R TP 6 R226 RES CHIP MAKER ERHZ0000485 4700 ohm 1 16W J 1005 R TP 6 R227 RES CHIP MAKER ERHZ0000439 200 Kohm 1 16W J 1005 R TP 6 R301 RES CHIP MAKER ERHZ0000407 1000 Kohm 1 16W J 1005 R TP 6 R302 RES CHIP MAKER ERHZ0000467...

Page 166: ...ch 6 U201 IC EUSY0240001 MICROPAK 6 PIN R TP SINGLE BIT UNIT DIRECTIONAL TRANSLATOR PB FREE 6 U203 IC EUSY0343501 CSP 42 PIN R TP Audio CODEC with Class AB D dual speaker driver Dual DAC IC Audio Codec 6 U205 IC EUSY0351801 BGA 193 PIN R TP 5M Camera D1 Audio MIPI IC Digital Signal Processors 6 U206 IC EUSY0300101 WQFN 10 PIN R TP Small package Dual SPDT analog Switch PB Free 6 U301 IC EUSY0250501...

Page 167: ...IP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C120 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C121 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C122 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C123 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C124 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C125 CAP CHIP MAKER ECZH00...

Page 168: ...IP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 6 C225 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 6 C235 CAP CHIP MAKER ECZH0001217 470 nF 6 3V K X5R TC 1005 R TP 6 C236 CAP CHIP MAKER ECZH0001217 470 nF 6 3V K X5R TC 1005 R TP 6 C243 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC...

Page 169: ... pF 50V J NP0 TC 1005 R TP 6 C412 CAP CERAMIC CHIP ECCH0000122 47 pF 50V J NP0 TC 1005 R TP 6 C413 CAP CHIP MAKER ECZH0003503 1 uF 25V K X5R HD 1608 R TP 6 C414 CAP CHIP MAKER ECZH0003503 1 uF 25V K X5R HD 1608 R TP 6 C415 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C501 CAP CHIP MAKER ECZH0000830 33 pF 50V J NP0 TC 1005 R TP 6 C502 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1...

Page 170: ...AD CHIP SFBH0008102 1800 ohm 1005 Bead 6 L101 INDUCTOR CHIP ELCH0003827 47 nH J 1005 R TP chip coil 6 L102 INDUCTOR CHIP ELCH0003827 47 nH J 1005 R TP chip coil 6 L103 INDUCTOR SMD POWER ELCP0006703 10 uH M 3 2 2 6 1 0 R TP 6 L104 INDUCTOR SMD POWER ELCP0006703 10 uH M 3 2 2 6 1 0 R TP 6 L202 INDUCTOR SMD POWER ELCP0008006 2 2 uH M R TP Chip power inductor 650mA 30 20 1 5 SHIELD 2X1 5X1 3MM empty ...

Page 171: ... Kohm 1 16W F 1005 R TP 6 R113 RES CHIP MAKER ERHZ0000485 4700 ohm 1 16W J 1005 R TP 6 R114 RES CHIP MAKER ERHZ0000204 100 Kohm 1 16W F 1005 R TP 6 R118 RES CHIP MAKER ERHZ0000267 3300 ohm 1 16W F 1005 R TP 6 R119 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP 6 R120 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R126 RES CHIP MAKER ERHZ0000444 22 Kohm 1 16W J 1005 R TP 6 R127 RES CHI...

Page 172: ...005 R TP 6 R411 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R412 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R413 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R414 RES CHIP MAKER ERHZ0000483 47 ohm 1 16W J 1005 R TP 6 R415 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R416 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R417 RES CHIP MAKER ERHZ00...

Page 173: ...C 2 54 mm Micro SD UIM Dupli Socket 6 SPFY PCB MAIN SPFY0182301 FR 4 0 8 mm STAGGERED 10 6 SW501 CONN RF SWITCH ENWY0004201 DIP dB H 2 8 Angle Type 6 U104 IC EUSY0347801 BGA 293 PIN R TP EDGE RF BB PM Onechip BB IC Digital Baseband Processor 6 U202 IC EUSY0270602 MICRO SMD 24 PIN R TP 2BUCK 2LDO 2 5x2 5 IC Sub PMIC 6 U204 IC EUSY0270602 MICRO SMD 24 PIN R TP 2BUCK 2LDO 2 5x2 5 IC Sub PMIC 6 U401 I...

Page 174: ...A CABLE SGDY0014401 empty empty 1 2M BLACK 4 18Pin Plug USB Datacable N 3 SGEY00 EAR PHONE EAR MIKE SET SGEY0003721 RMS 20mW 0 56V RMS 16Ohm 2 4Ohm 1KHZ 116dB 3dB 1KHZ 3mW 116dB 1KHZ 96dB 100HZ empty BLACK 18P MMI CONNECTOR Earphone Stereo 3 SSAD00 ADAPTOR AC DC SSAD0025001 100 240V 5060 Hz 5 1 V 7 A CE AC DC ADAPTOR 85Vac 264Vac 5 1V 0 15V 0 2V 700mA 5060 WALL 2P I O CONNECTOR 대치 ADAPTOR AC DC SS...

Search results

Summary of Contents for KC780

Reviews:

Related manuals for KC780

Brands by name

Popular brands

LG KC780, Service Manual

Search results

Summary of Contents for KC780

Reviews:

Related manuals for KC780

Brands by name

Popular brands