LG KC550 Service Manual Download Page 105

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6.12 RF Troubleshooting

6.12.1 General Circuits Troubleshooting

LGE Internal Use Only

Only for training and service purposes

6. Trouble shooting

- 106 -

General Circuits

Check

Power Circuit

1. Set HP8960 as below

Active Cell(GPRS)

62ch, 5level (TCH)

62ch, -60dBm (BCH)

2. Establish Spectrum Analyzer

& Oscilloscope

Check

DCXO Circuit

General function is OK.

YES

Check

RF Switch Circuit

YES

Fig 1 Troubleshooting flowchart of general circuits

Summary of Contents for KC550

Page 1: ...Date May 2008 Issue 1 0 Service Manual Model KC550 Service Manual KC550 Internal Use Only ...

Page 2: ...and should not be construed as a commitment by LGE Inc Furthermore LGE Inc reserves the right without notice to make changes to equipment design as advances in engineering and manufacturing methods warrant This manual provides the information necessary to install program operate and maintain the KC550 REVISED HISTORY Editor Date Issue Contents of Changes S W Version Y W YUN 5 26 0 1 ...

Page 4: ...rt 74 4 4 RF synthesizer 75 4 5 DCXO 76 4 6 Front End Module control 76 4 7 Power Amplifier Module 77 4 8 Mode Selection 78 5 PCB layout 79 5 1 Main PCB component placement 79 6 Trouble shooting 84 6 1 Trouble shooting test setup 84 6 2 Power on Trouble 85 6 3 Charging trouble 88 6 4 LCD display trouble 90 6 5 Camera Trouble 93 6 6 Receiver Speaker trouble 95 6 7 Microphone trouble 97 6 8 Ear MIc ...

Page 6: ...orized use B Incidence of Harm If a telephone company determines that the equipment provided to customer is faulty and possibly causing harm or interruption in service to the telephone network it should disconnect telephone service until repair can be done A telephone company may temporarily disconnect service as long as repair is not done C Changes in Service A local telephone company may make ch...

Page 7: ... engines or electric motors may cause problems H Electrostatic Sensitive Devices ATTENTION Boards which contains Electrostatic Sensitive Device ESD are indicated by the sign Following information is ESD handling Service personnel should ground themselves by using a wrist strap when exchange system boards When repairs are made to a system board they should spread the floor with anti static mat whic...

Page 8: ...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 Global Sy...

Page 9: ...k RF Radio Frequency RLR Receiving Loudness Rating RMS Root Mean Square RTC Real Time Clock SAW Surface Acoustic Wave SIM Subscriber Identity Module SLR Sending Loudness Rating SRAM Static Random Access Memory 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...

Page 10: ...nder 3 hours 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 x 320 pixels 2 4 inch QVGA 262K color TFT Status Indicator Soft icons 0 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 controll...

Page 11: ...MHz n 512 810 RX TX 80MHz 2 Phase Error RMS 5 degrees Peak 20 degrees 3 Frequency Error 0 1ppm 4 Power Level 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 To...

Page 12: ...to modulation 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 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 6 000 73 6 Output RF Spectrum EGSM due to switching transient Offset from Carrier kHz Max dBm 400 19 600 21 1 200 21 1 800 ...

Page 13: ...us Emissions Conduction Emission Status 8 Bit Error Ratio EGSM BER Class II 2 439 102dBm DCS1800 PCS1900 BER Class II 2 439 100dBm 9 Rx Level Report accuracy 10 SLR 8 3 dB 11 Sending Response 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 4 000 0 12 RLR 2 3 dB 13 Receiving Response Frequency Hz Max dB Min dB 100 12 200 0 300 2 7 500 5 1 000 0 5 3 000 2 5 3...

Page 14: ...tandby Normal 2 mA PP9 21 Talk Time EGSM Lvl 7 Battery Capacity 900mA 180min EGSM Lvl12 Battery Capacity 900mA 320min 22 Standby Time Under conditions 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 belo...

Page 15: ...r Battery Bar Number Voltage 0 05V 3 3 76V 4 2V 2 3 68V 3 75V 1 3 55V 3 65V 0 3 41V 27 Low Voltage Warning 3 58V 0 05V Call 3 51V 0 05V Standby 28 Forced shut down Voltage 3 3 0 05 V 29 Battery Type Li ion Battery or Li Polymer Battery Standard Voltage 3 7 V Battery full charge voltage 4 2 V Capacity 900mAh 31 Travel Charger Switching mode charger Input 100 240 V 50 60Hz Out put 5 1 0 7A ...

Page 16: ...dBm 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 26dBm 3dB 10 10dBm 4dB 3 24dBm 3dB 11 8dBm 4dB 4 22dBm 3dB 12 6dBm 4dB 5 20dBm 3dB 13 4dBm 4dB 6 18dBm 3dB 14 2dBm 5dB 7 16dBm 3...

Page 17: ...tput RF Spectrum DCS1800 PCS1900 due to modulation 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 7 Output RF Spectrum EGSM due to switching transient 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 1 800 30 ...

Page 18: ...D SIM Card Socket Charging ISL9221 2 4î QVGA TFT 240x320 2 4î QVGA TFT 240x320 FEM LSHS C085FB PAM TQM7M5005 Battery 900mAh BT FM radio BLUCORE5 FM Acceleration Sensor 5M Pxl AF MMIC ISP M180 18pin I O KEYPAD Signal Control Connection RF Connection Power Connection Mechanical Connection RF Ctrl 26MHz Radio RX signal D 4 SIM UART I2S PMIC LP3907 1 2V 1 8V 2 6V Charge Pump BD6095 LCD B L Camera LDO ...

Page 19: ...ckage 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 integration Full software re use from the proven Infineon EDGE platform MP ELite enables fast time to market using a comprehensive development kit available to all customers today S GOLDradioTM is tailored to fit the requirements of EDGE enabl...

Page 20: ...ws 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 directly from re chargeable batteries such as Li Ion or Li Polymer batteries S GOLDradioTM Power Man...

Page 21: ...pplications 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 Low Voltage Capable SDIO expandable using external components LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Figure 3 S GOLDradioTM Baseband Block Diagram ...

Page 22: ... and environmental temperature battery technology transmission power offset on chip temperature etc Security S GOLDradioTM has the following security features Secure Boot and Flash Update SHA1 HW acceleration Secure 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...

Page 23: ... 31 MPixel resolution SXGA 1280 x 1024 is transferred within 1 15 sec to external memory 1 Then JPEG compression is done by SW while the viewfinder is frozen so that the user can immediately see the snapshot on the display Photo Flash Under low light conditions usually a photo flash is required To activate the flash at the right time a general purpose timer unit GTPU can be used that is triggered ...

Page 24: ...e display interface Audio decoding GSM AMR is done on the DSP The audio video synchronization is done by time stamp feedback from the DSP to the ARM Sending Receiving H 263 or MPEG 4 videos can be sent received as MMS E GPRS as e mail or downloaded from the internet Higher Multimedia Performance If higher multimedia performance is required an external multimedia IC can be connected to S GOLDradioT...

Page 25: ...y Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Device Name Maker Remark FLASH K5D1G12ACE D075 SAMSUNG 1G 128Mx8 NAND SDRAM K5D1G12ACE D075 SAMSUNG 512M 32Mx16 SDRAM LCD TX08D13VM0AAA TMD 16bit access 2times transmission Multimedia IC 215 0638018 AMD Multimedia processing T_OUT Resource Interconnection Description PABS PA_BAND TX RF band select PAMODE ...

Page 26: ...nel usage LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes USART_0 USART1 Resource Name Remark USART0_TXD UART_TX Transmit Data USART0_RXD UART_RX Receive Data USART0_CTS ACCEL_INT Interrupt USART0_RTS MMC_DETECT GPIO DSPOUT_0 JACK_DETECT Interrupt ADC channel Resource Interconnection Description M0 BATT_ID Battery IC check M1 RF_TEM...

Page 27: ...ight 2008 LG Electronics Inc All right reserved Only for training and service purposes Port Function Net Name Description Keypad KP_IN0 NONE KP_IN1 KP_IN 1 KP_IN2 KP_IN 2 KP_IN3 KP_IN 3 KP_IN4 KP_IN 4 KP_IN5 KP_IN 5 KP_IN6 KP_IN 6 KP_OUT0 KP_OUT 0 KP_OUT1 KP_OUT 1 KP_OUT2 KP_OUT 2 KP_OUT3 KP_OUT 3 USART0 USART0_RXD UART_RX USART0_TXD UART_TX USART0_RTS_N MMC_DETECT USART0_CTS_N ACCEL_INT DSPOUT0 J...

Page 28: ...LK CIF_HSYNC MM_WAIT CIF_VSYNC TP CLKOUT2 GPO_CTRL1 CIF_PD_GPIO HS_SEL 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_INT DIF_VD BT_INT DIF_RESET1_GPIO HOOK_DETECT I2C I2C_SCL I2C_SCL I2C_SDA I2C_SD...

Page 29: ...MCI_DAT0 MMCI_DAT0 MMCI_CLK MMCI_CLK USIF Universal Serial IF USIF_TXD_MTSR UART_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 M...

Page 30: ...RST_N RTCK RTCK Debug TRIG_IN TRIG_IN MON1 MON1 MON2 MON2 External Bus Interface EBU FCDP Flash Controller DMA Port 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 31 3 TECHNICAL BRIEF LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 31: ...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 Power supply VDD_MAIN VSD1_1V5 VSS_MAIN GND VDDP_EBU1 VSD2_1V8 VSSP_EBU NONE VDDP_DIG NONE VDDP_SIM NONE VDDP_MMC NONE VDD_RTC NONE VSS_RTC NONE VDD_PLL NONE VDD_USB NONE Analog Power Supply VAUDIO VAUDIO_2V5 VSS_MS GND VSS_...

Page 32: ...X1X 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_2V85 VDDVCO VRF3_2V85 VDDTRX VRF2_1V5 VDDDIG VRF3_2V85 VDDMS VRF3_2V85 ...

Page 33: ...2V85 Ground Balls VSSRF1 GND VSSRF2 GND VSSRF3 GND VSSRF4 GND VSSRF5 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 ...

Page 34: ...5 VRF2 VRF2_1V5 VDD_RF2PLL VBAT VRF1 VRF1_2V85 VRF3 VRF3_2V85 VBAT_RF13 VBAT VSS_LDO3 GND Charger and RTC CH_SOURCE GND CH_GATE NA SENSE_IN1 VBAT SENSE_IN2 VBAT VDD_REF GND VDDCHARGE VCHG VBUS_USB VSS_CHARGER NONE CHARGE_UC SCAN_IN1 VRTC_2V0 VRTC NONE Reference IREF1 GND A_GND GND VREF1 LED s BL1_PWM VSENSE1 TP BL2_PWM TP BL3_PWM TP FLASH_ON NONE TXONPA NONE VSS_FLASH GND FLASH_SINK KEY_BL ...

Page 35: ...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 GND SD2_SD1_SUBST GND Step Up Converter SU1 SU_GATE NA SU_GND GND SU_FB NA SU_ISENSE NA VBAT_SU NA VSS_SU GND Control Logic LPBCL_ECHO NA WDOG SCAN_IN2 NONE ON_OFF SCAN_RESET PWRON ON_OFF2 SCAN_CLK NONE VSS_DIG NONE ON_OFF_OUT NONE RESET2_N VSENSE2 NA PO_R...

Page 36: ...Electronics Inc All right reserved Only for training and service purposes SLEEP_N SCAN_ENABLE NONE SCANMODE NONE I2C_INT SCAN_OUT1 NONE I2C_CLK NONE I2C_DAT NONE Audio Loudspeaker Amplifier VBAT_MONO NA VSS_MONO NA MONO_OUTP NA MONO_OUTN NA MONO_INP NA MONO_INN NA ...

Page 37: ... all load conditions For supply voltages higher than the battery voltage the S GOLDradio PMU provides a step up converter This step up converter provides the supply voltage to for example serial connected LED Øs used in display backlight A number of LDOs are available to provide different supply rails for different needs In addition the S GOLDradio PMU supports charging of the battery and generate...

Page 38: ...he 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 140 mA ultra low drop VVIB 3 1 V 40 mA ultra low drop VUSB Low Noise LDOs 2 5V 220 mA VAUDIOa 2 85 V 20 mA VRF1 1 5 V 80 mA VRF2 2 85 V 150 mA VRF3 Low Powe...

Page 39: ...Power on reset Software controlled 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 Interface...

Page 40: ...2 1u C126 VSD1_1V5 VRF3_2V85 220n C117 0 01u VSS_LDO2 D6 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 V4 VSSRF11 V5 VSSRF12 VSSRF13 V6 VSSRF14 W1 N2 VSSRF2 N3 VSSRF3 P2 VSSRF4 R2 VSSRF5 T2 VSSRF6 VSSRF7 U2 VSSRF8 U3 VSSRF9 U6 VSS_AUDIO E3 H2 VSS_EP E11 VSS_LDO1 C7 VIO C10 VLED A7 VMMC A3 VPLL VRF1 A2 B4 VRF2 B1 VRF3 A8 VSIM M2 VSSR...

Page 41: ...2V 6 Cutoff current 100mA 7 Full charge indication current icon stop current 100mA 8 Recharge voltage 4 15V 9 Low battery alarm a Idle 3 58V 3 48V b Dedicated 3 51V 3 41V 10 Low battery alarm interval a Idle 3min b Dedicated 1min 11 Switch off voltage 3 35V 12 Charging temperature adc range a 20 C low charging voltage operation 3 8V 4 0V b 20 C 60 C standard charging up to 4 2 V c 60 C low chargin...

Page 42: ...em Startup Statem 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 After time TE1 start SD2 in active mode After TDEL1 delay start LDOs in the sequence VRF1 VIO VPLL VAUX all started with delay to each ot...

Page 43: ... 44 3 TECHNICAL BRIEF LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Figure 7 Power Up and Down Sequence triggered by ON_OFF1 ...

Page 45: ...Only for training and service purposes Figure 9 Remote power on and End key power on circuit END 150 R106 END VBAT VA114 END_KEY Figure 10 Remote power on and End key power on circuit Remote Power On R401 10K VRTC_2V0 330K R408 R597 100K R600 2K 3 3M R410 C406 2 2u RPWRON RPWRON_EN END_KEY_IN PWRON ...

Page 46: ... BBP _SIM_EN SIM Interface SIM_CLK SIM card reference clock SIM_RST SIM card Async sync reset SIM_IO SIM card bidirectional reset Figure 11 SIM CARD Interface SIM MMC Connetor C405 27p C402 DNI C408 1000p C401 1uF R402 4 7K 47K R405 R407 47K R406 47K 47K R403 VIO_2V62 47K R412 C407 DNI C403 VSIM_2V8 0 1u 15 S6 13 11 S7 S8 10 ST1 17 18 ST2 T1 2 T2 3 4 T3 T4 5 6 T5 T6 7 8 T7 9 T8 S401 G1 19 20 G2 21...

Page 47: ...l automates all program and erase functions including pulse repetition where required and internal verification and margining of data Even the write intensive systems can take advantage of the device s extended reliability of 100K program erase cycles by providing ECC Error Correcting Code with real time mapping out algorithm The device is an optimum solution for large nonvolatile storage applicat...

Page 48: ...N1 N10 DNU7 DNU8 P1 P2 DNU9 DQ0 B3 DQ1 C4 DQ10 K4 L3 DQ11 DQ12 L4 M3 DQ13 DQ14 M4 DQ15 N3 C3 DQ2 DQ3 D4 D3 A5 K9 A6 J9 A7 H7 A8 A9 H8 D5 ALE D7 BA0 BA1 D8 CKE G8 C5 CLE CLK H4 A2 DNU1 DNU10 P9 P10 DNU11 DNU2 A9 A10 DNU3 DNU4 K5D1G12ACE D075 C7 A0 A1 C8 D9 A10 H9 A11 G7 A12 C9 A2 B8 A3 M9 A4 L9 U101 VSD2_1V8 R117 100K 0 1u C132 R114 100K C133 0 1u C135 0 1u TP124 100K R106 0 1u C137 TP123 VSD2_1V8 ...

Page 49: ...2 PWM O PWM signal output for backlight control 3 DTX3 I Interface Mode 4 DTX1 I Interface Mode 5 DTX1 I Interface Mode 6 VSYNC O O Vsync Interface out 7 RD O Read 8 WR I O Write 9 RS I O Address Data select 10 CS I O Chip Select 11 D15 I O Data 15 for LCD 12 D14 I O Data 14 for LCD 13 D13 I O Data 13 for LCD 14 D12 I O 12 for LCD 15 D11 I O Data 11 for LCD 16 D10 I O Data 10 for LCD 17 D9 I O Dat...

Page 50: ...ce purposes Pin No Pin Name I O Description 25 D1 I O Data 1 for LCD 26 D0 I O Data 0 for LCD 27 LCD ID I Menufacture ID 28 VCC1 I Logic 29 VCC1 I Analog 30 RESET I O LCD reset 31 MLED5 O LED Cathode 32 MLED4 O LED Cathode 34 MLED3 O LED Cathode 34 MLED2 O LED Cathode 35 MLED1 O LED Cathode 36 MLED I LED Anode 37 GND Ground ...

Page 51: ...VA102 C102 0 1u VA104 EVLC14S02050 31 32 33 34 35 36 37 4 5 6 7 8 9 17 18 19 2 20 21 22 23 24 25 26 27 28 29 3 30 CN101 1 10 11 12 13 14 15 16 EVLC14S02050 VA105 VA103 EVLC14S02050 VIO_2V62 DTX0 DTX1 DTX3 DIF_VSYNC DIF_RESET LCD_ID DIF_D 0 DIF_D 1 DIF_D 2 DIF_D 3 DIF_D 4 DIF_D 5 DIF_D 6 LCD_PWM DIF_D 7 DIF_D 8 DIF_D 9 DIF_D 10 DIF_D 11 DIF_D 12 DIF_D 13 DIF_D 14 DIF_D 15 DIF_CS MLED4 MLED2 MLED DI...

Page 52: ... the PCL Volume up down Clear Send End Power on keys are located on the Key PCB And MP3 hot key Camera AF trigger shutter numeric keys are connected by Key FPCB Figure 14 Key FPCB part key matrix AF SHUTTER VOL_UP 101 star 104 sharp 106 VOL_DN 108 AF CAM 110 103 109 105 102 107 KP_IN 3 KP_OUT 0 4 KP_IN 2 KP_OUT 0 KP_OUT 1 KP_OUT 2 KP_OUT 3 KP_OUT 4 KP_IN 1 KP_IN 1 4 KP_IN 4 Figure 15 Key PCB part ...

Page 53: ... LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Figure 16 Key PCB Back light LEDs SSC TWH104 HL LD105 SSC TWH104 HL LD106 LD102 SSC TWH104 HL R107 10 10 R101 R108 10 10 R102 LD101 SSC TWH104 HL MLED SUB_KEY_BL Figure 17 Key FPCB Back light LEDs KEY BACKLIGHT LEWWS44 E LD101 LD102 LEWWS44 E VBAT 10 R103 R102 10 KEY_BL R103 10 10 R10...

Page 54: ... with the input voltage Table 8 Charge pump IC LCD part current setting table 55 3 TECHNICAL BRIEF LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Figure 18 LCD Back light unit and Key backlight charge pump IC 1u C105 E1 E6 VIO B4 VOUT WPWMIN D1 B1 LED5 B2 A2 LEDFL B3 LEDGND RESETB C4 SBIAS F5 D5 SCL D4 SDA E5 SGND SSENS F3 T1 A1 A6...

Page 56: ...KC550 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 Figure 19 JTAG interface connector 30 17 18 19 20 21 22 23 24 G1 G2 G3 G4 14 15 2 3 4 5 6 7 8 9 16 25 26 27 28 29 CN101 1 10 11 12 13 VSD2_1V8 VIO_2V62 TDI TMS TCK TDO TRIG_IN TRST_N RTCK _EXTRST ...

Page 57: ...HSO_L HSO_R AMPIN_L AMPIN_R FM_SND_L FM_SND_R HSO_L HSO_R SPK_P SPK_N MIC_N MIC_P HS_MIC_N HS_MIC_P EAR_N EAR_P MIC_N MIC_P HS_MIC_N HS_MIC_P Analog SWICH BT CSR AMD decoding encoding I2S LOUT ROUT SPKP SPKN 100uF 100uF HS_SEL 24p 24p 100nH 100nH 27p 27p 1uF 1uF 1uF 1uF 1uF 1uF 1uF 1uF 120ohm Bead 120ohm Bead VARISTOR 47p 47p 27p 47p 47p VARISTOR 0 ohm 100nH 0 ohm 100nH N A 27p 27p 0 1uF 0 1uF 1uF...

Page 58: ...lable to maximise signal quality and minimise power consumption Stereo 24 bit sigma delta ADCs DACs provide hi fi quality audio playback with a flexible digital audio interface supporting most commonly used clocking schemes An integrated low power PLL provides additional flexibility Stereo DAC AMP Stereo DAC AMP R212 DNI C208 0 1u 22u C206 1u C237 C232 1u 0 R214 C239 1u 1u C207 C236 1u C227 100u D...

Page 59: ...1 GND 4 7 S1 6 S2 9 VCC FSA2268TUMX 8 1A 1B0 10 1B1 1 5 2A 2 2B0 U204 VAUX_2V9 HS_SEL HSO_L AMPIN_R SND_L SND_R AMPIN_L HSO_R Figure 22 Audio signal distribute analog switch MIC MIC 27p 2 G1 3 G2 1 O 4 P C107 SPM0204HE5 PB 3 MIC101 L102 100nH C104 0 1u C109 1u C103 100p C108 0 1u C106 27p EVLC14S02050 VA111 L101 100nH 100nH L103 C105 0 1u MIC_N MIC_P VMIC Figure 23 Microphone circuit ...

Page 60: ...rved Only for training and service purposes Figure 24 S GOLDradioTM Audio Front End Block Diagram 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 EAR_N MIC_N EAR_P SND_R SND_L VMIC MIC_P HS_MIC_N HS_MIC_P Figure 25 S GOLDradioTM Audio Front End Circuit ...

Page 61: ...ollowing equation software debugging purpose 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 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes CHARGING IC DNI R414 R420 5 1K VDC_BYP VUSB 2 4 _CHG 5 _EN _PPR 3 ISL9221 U403 BAT 11 8 GND 6 IMIN 7 IUSB 9...

Page 62: ...7 G1 4 6 G2 C535 27p VIO_2V62 C537 15p L509 6 8nH 15p C538 R521 1 C554 0 1u VSS_PIO VSS_RADIO_1 D2 E2 VSS_RADIO_2 VSS_RADIO_3 F2 K2 XTAL_IN XTAL_OUT J2 F8 _RST J5 VREGIN_L J1 VREGOUT_H K5 VSS_ANA_1 C3 VSS_ANA_2 D3 VSS_ANA_3 E3 VSS_ANA_4 F3 VSS_ANA_5 G3 VSS_ANA_6 J3 VSS_CORE B6 G9 VSS_DIG VSS_FM1_1 B2 C1 VSS_FM1_2 VSS_FM2 B4 VSS_LO H2 VSS_PADS G8 C10 J8 USB_DN K6 USB_DP J7 VDD_ANA K1 A6 VDD_AUDIO V...

Page 63: ...er requires no external VCO varactor diode resonator or loop filter Compatible with crystals between 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 pack...

Page 64: ... Electronics Inc All right reserved Only for training and service purposes Figure 28 Bluetooth FM Radio Block Diagram Bluetoot Antenn 2 4 F Radi I O RO MM Processo 2 4 GH Radi RA AUDIO Driver UAR PI I2S PCM R IN OU Main PM 888 RF Stereo Analogu VBT_2V BlueCor 5 F ...

Page 65: ...o 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 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training an...

Page 66: ...s eight exposed contacts on one side The S GOLDradio is connected to the module using a dedicated eight pin connector Table 7 Micro SD memory pad assign Figure 39 Micro SD pin assignment 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 67: ...l C405 27p C402 DNI C408 1000p C401 1uF R402 4 7K 47K R405 R407 47K R406 47K 47K R403 VIO_2V62 47K R412 C407 DNI C403 VSIM_2V8 0 1u 15 S6 13 11 S7 S8 10 ST1 17 18 ST2 T1 2 T2 3 4 T3 T4 5 6 T5 T6 7 8 T7 9 T8 S401 G1 19 20 G2 21 G3 16 S1 14 S2 S3 12 1 S4 S5 R411 47 R404 47K 27p VMMC C404 MMC_D 0 MMC_CLK MMC_CMD MMC_D 3 MMC_D 2 SIM_IO SIM_CLK SIM_RST MMC_DETECT MMC_D 1 Micro SD card status it is remo...

Page 68: ... 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 69: ...3 P4 4 5 P5 P6 6 FB305 L305 NA 24p C317 2 2u NA C303 L306 VAUDIO_2V5 2 2K R304 R303 1 5K 100nH L301 FL306 P1 1 2 P2 3 P3 P4 4 5 P5 P6 6 VBUS_USB EVSC5S04F050 10K R306 EVSC5S04F050 FL307 P1 1 2 P2 3 P3 P4 4 5 P5 P6 6 VBAT FB304 0 1u C306 680p R302 C321 330K L304 100nH C320 VIO_2V62 680p C302 100p 150 C319 ICVFP10181E301FR FL301 GND1 GND2 IN OUT 1000 FB306 18 19 2 20 21 22 3 4 5 6 7 8 9 CN302 1 10 1...

Page 70: ... 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 functionality 4 RF circuit technical brief LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Figure 32 PMB 6272 Fun...

Page 71: ...5 VDET TX1 V3 W3 TX2 R4 PABS PAEN M3 PAMODE U5 W2 RX1 RX1X V1 U1 RX2 T1 RX2X RX3 R1 P1 RX3X RX4 N1 RX4X M1 PABIAS R3 M0 H3 J3 M1 M10 F4 M2 G4 H4 M7 M8 G3 J4 M9 FE1 N4 P5 FE2 C131 0 1u 0 1u R113 100K PA_MODE REMOTE_ADC PPR GSM900_RXN GSM850_RXP GSM850_RXN PCS1900_RXN DCS1800_RXP DCS1800_RXN GSM900_RXP TX_RAMP PCS1900_RXP TXLB TXHB BAT_ID RF_TEMP PA_BAND PA_EN VC1 VC2 Figure 33 TX IQ ...

Page 72: ...rd order low pass 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 differential to suppress on chip interferences Several gain steps are implemented to cope with the dynamic range of the input signals Depending on the baseband ADC dynamic range singl...

Page 73: ... 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 information The phase signal from the CORDIC is applied to the Sigma Delta fractional N modulation loop The divided output of its associated VCO is fed to a ...

Page 74: ...oop filter is fully integrated and the loop bandwidth is about 100 kHz to allow the transfer of the phase modulation The loop bandwidth is automatically adjusted prior to each slot OLGA2 To overcome the statistical spread of the loop filter element values an automatic loop filter adjustment ALFA is performed before each synthesizer startup The fully integrated quad band VCO is designed for the fou...

Page 75: ...les with two logic input pins to select RX and TX mode as well as low and high band operation LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes EGSM900 RX GSM850 RX L GSM850 DCS_PCS TX GSM850_EGSM TX H L PIN 14 L PIN 13 L L PCS1900 RX L PCS1900 VC2 DCS1800 RX L L L DCS1800 GSM900 VC1 H L R504 100p 2 2nH R596 33p C500 C513 2 7p NA L585...

Page 76: ...6 100p 100p C525 4 7nH L572 27p C524 2 7nH L501 L500 NA 1 R509 1 2K R508 1 R505 PA_BAND PA_MODE PA_EN TXLB TX_RAMP TXHB Figure 37 PA Module PIN Name Description 1 MODE GMSK EDGE Power control mode L GMSK H EDGE 2 DCS PCS_IN RF input DCS PCS DC Blocked 3 BS Band Select 4 REVD1 Reserved 5 VBATT DC Supply 6 VRAMP Analog PA Bias Control All Bands EDGE Mode Analog Output Power Control All Bands GMSK Mo...

Page 77: ... 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 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 78: ...t LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 1 Main PCB component placement MMIC MEMORY Baseband FEM MOTOR PAM 26M 32K Accel Sensor Charging IC Main PCB Top ...

Page 79: ...G Electronics Inc All right reserved Only for training and service purposes 5 PCB layout 80 F Fl ash SIM Mi cr oSD Mob i l e Swit ch Batte r y Connector BT Ant enna Bluetooth Audio Am p Fl ash LED Dri ver Hal l IC 18pin I O Main PCB bottom ...

Page 80: ...e Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 PCB layout 81 LCD connecto r Char ge Pump LED Dom e KEY PCB Bottom LCD connecto r Char ge Pump LED Dom e KEY PCB TOP ...

Page 81: ... 82 5 PCB layout LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes MIC LED Camera Key Volume Key Numeric Key Hall IC F KEY TOP ...

Page 83: ... Trouble shooting 84 6 Trouble shooting 6 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 84: ...hooting 85 6 2 Power on Trouble Check Points Battery Voltage Need to over 3 35V Power On Key detection PWRON signal END 150 R106 END VBAT VA114 END_KEY Remote Power On R401 10K VRTC_2V0 330K R408 R597 100K R600 2K 3 3M R410 C406 2 2u RPWRON RPWRON_EN END_KEY_IN PWRON R312 10K R313 100K END_KEY END_KEY_IN KP_IN 6 KP_OUT 0 TP1 ...

Page 85: ...key Check PWRON signal of TP1 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 LDOís output Is it correct Check solder whole LDO parts or replace it CN CN101 01 Replace main PCB Is the 26MHz clock from TP2 X101 of U104 Check solder Replace X TAL No X1 X1...

Page 87: ...S HSO_R 16 D TX 7 USB Remote_ADC RXD 17 D RX 4 CTS HSO_L 14 DSR 6 USB Remote_INT TXD 8 JACK_D VCHG ICVFP10181E301FR GND1 GND2 IN OUT FL302 24p C315 VBAT EVSC5S04F050 FL305 3 P3 P6 6 FB305 24p C303 100nH L301 FL306 P1 1 2 P2 3 P3 P4 4 5 P5 P6 6 EVSC5S04F050 EVSC5S04F050 FL307 P1 1 2 P2 3 P3 P4 4 5 P5 P6 6 FB304 L304 100nH 18 19 2 20 21 22 3 4 5 6 7 8 9 CN302 1 10 11 12 13 14 15 16 17 C307 24p 39p C...

Page 88: ...89 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 R104 4 2V Check solder R104 Yes Yes Yes Battery voltage is over 3 35V No charging until battery Voltage goes up to 3 35V TP TP1 TP TP2 Charge is operating properly Yes ...

Page 89: ...E10184E150R101FR FB301 ICVE10184E150R101FR FB303 5 G1 10 G2 1 INOUT_A1 INOUT_A2 2 3 INOUT_A3 INOUT_A4 4 INOUT_B1 9 8 INOUT_B2 INOUT_B3 7 6 INOUT_B4 VRTC_2V0 0 1u C312 ICVE10184E150R101FR FL303 5 G1 10 G2 1 INOUT_A1 INOUT_A2 2 3 INOUT_A3 INOUT_A4 4 INOUT_B1 9 8 INOUT_B2 INOUT_B3 7 INOUT_B4 6 1V8_CAM VIO_2V62 G1 5 G2 10 INOUT_A1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 INOUT_B2 8 7 INOUT_B3 INO...

Page 90: ...ectronics Inc All right reserved Only for training and service purposes 6 Trouble shooting 91 Che Check in insula lators rs Che Check co connectio tion of of LC LCD co connector Che Check co connection tion of of F LCD CD connec connec tor tors ...

Page 91: ...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 92: ...8100Y500FR C278 1V8_CAM 1V8_VMM L205 1nH C280 10p C276 10p VA203 FB207 0 1u C264 0 1u 2V8_CAM C266 C267 0 1u 1u C265 0 1u C262 FB208 C279 10p DNI C269 C270 C268 DNI DNI 1nH L208 C273 EVLC18S02003 C272 EVLC18S02003 DNI C271 C275 EVLC18S02003 EVLC18S02003 C274 23 24 3 4 5 6 7 8 9 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 CN202 C263 10u CAM_MCLK MIPI_CLK_N MIPI_CLK_P MIPI_DATA_N MIPI_DATA_P CAM_SCL ...

Page 93: ...y for training and service purposes START Replace New Camera module Working properly Assemble Yes Yes No Check camera connector 24pin main connector Combination then Camera test With equipped camera module Replace U206 and U101 Key PCB Yes Check Next step of Main PCB Check Signals Power line TP1 TP8 No ...

Page 94: ... LOP LOUT B4 F5 MCLK MICBIAS A2 E2 MODE OUT3 A4 C4 OUT4 RIN1 U203 WM8990ECS_RV F4 ADCDAT ADCLRC_GPIO1 E4 A3 AGND A6 AVDD BCLK G5 CSB_ADDR F2 DACDAT F3 DACLRC G4 G6 DBVDD DCVDD F6 E6 DGND G2 GPIO3_BCLK2 G3 4 7u C219 C233 1u C231 100u 4 7u C216 1u C230 FB201 75 C240 47p 0 1u C214 VAUX_2V9 4 7u C203 47p C241 R222 100K 1u C229 1u C238 FB205 FB206 TP210 VIO_2V62 VBAT TP211 VMIC I2S2_WA0 MIC_P HS_MIC_P ...

Page 95: ... is Low 0V Output Signal TP2 is Low 0V Assemble Replace Main Board Replace U203 of main board Yes Check Speaker tension and Contacts are clear No No Replace Main PCB Receiver Signal TP3 High 1 6V Replace Receiver Check the soldering status Of U203 of main board Yes OutputSignal C240 C241 Input Signal C230 C239 Receiver Signal C102 C103 TP TP2 TP TP1 TP TP3 3 ...

Page 96: ...g of components MIC MIC 27p 2 G1 3 G2 1 O 4 P C107 SPM0204HE5 PB 3 MIC101 L102 100nH C104 0 1u C109 1u C103 100p C108 0 1u C106 27p EVLC14S02050 VA111 L101 100nH 100nH L103 C105 0 1u MIC_N MIC_P VMIC START Check the signal TP1 level at each side of MIC400 Check mic Bias line Yes No No Check microphone sound hole Replace microphone MIC101 Replace Main PCB Yes Mic bias TP2 ON 2 5V when call L101 Yes...

Page 97: ...oses 6 Trouble shooting 98 6 8 Ear MIc Jack Detection trouble START Is the status of FL307 TP1 low Assemble Resolder FL307 Yes No No Check the Ear Jack detection Resoldering or Replace CN302 The main board has a problem Replace Main PCB Yes Check the soldering status of CN302 CN302 TP TP1 Ear Jack Signal FL307 ...

Page 98: ...nectors combination START Assemble Yes No Check Vibrator Connector Combination Replace Vibrator Ch Check eck so solder ldering U4 U402 02 TP1 TP2 Check the voltage difference of TP1 TP2 is 3V Resoldering or Replace U402 VIBRATOR VVIB_2V8 V 0 1u C412 VBAT L402 100nH 7 5 R417 3 SUY98005LT1G U402 GND 2 1 VIN VOUT 1u C555 1K R416 100K R418 V L401 47nH 47nH L403 1u C411 TP1 TP2 ...

Page 99: ...6 END VBAT VA114 END_KEY SEND RIGHT MENU DOWN LEFT CLEAR UP OK SELECT KP_OUT 0 KP_IN 5 KP_IN 6 KP_IN 5 6 KP_OUT 0 4 KP_OUT 1 KP_OUT 2 KP_OUT 3 KP_OUT 4 B4 VOUT B1 LED5 B2 A2 LEDFL SBIAS F5 SSENS F3 GC1 E4 E3 GC2 D2 LED1 C2 LED2 LED3 C1 LED4 MLED1 MLED2 MLED3 MLED4 MLED MLED5 SUB_KEY_BL SSC TWH104 HL LD105 SSC TWH104 HL LD106 LD102 SSC TWH104 HL R107 10 10 R101 R108 10 10 R102 LD101 SSC TWH104 HL M...

Page 100: ...2 KP_OUT 0 KP_OUT 1 KP_OUT 2 KP_OUT 3 KP_OUT 4 KP_IN 1 KP_IN 1 4 KP_IN 4 KEY BACKLIGHT LEWWS44 E LD101 LD102 LEWWS44 E VBAT 10 R103 R102 10 KEY_BL TP117 TP115 TP114 C146 220n 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 IREF1 B5 IREF2 L4 E6 FLASH_SINK BL2_PWM E10 E8 BL3_PWM B6 A_GND D10 BL1_PWM_VSENSE1 TP118 R136 22K _WP PWRON PO_RES...

Page 101: ...cs Inc All right reserved Only for training and service purposes 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 102: ...sed TP3 TP1 TP2 TP4 TP5 SIM MMC Connetor C405 27p C402 DNI C408 1000p C401 1uF R402 4 7K 47K R405 R407 47K R406 47K 47K R403 VIO_2V62 47K R412 C407 DNI C403 VSIM_2V8 0 1u 15 S6 13 11 S7 S8 10 ST1 17 18 ST2 T1 2 T2 3 4 T3 T4 5 6 T5 T6 7 8 T7 9 T8 S401 G1 19 20 G2 21 G3 16 S1 14 S2 S3 12 1 S4 S5 R411 47 R404 47K 27p VMMC C404 MMC_D 0 MMC_CLK MMC_CMD MMC_D 3 MMC_D 2 SIM_IO SIM_CLK SIM_RST MMC_DETECT ...

Page 103: ...service purposes 6 Trouble shooting 104 TP2 SIM_CLK TP3 SIM_IO TP1 VSIM_2V8 START S401 soldered well Check Proper SIM Card Assemble Resolder connector Replace Main Board Yes Yes No Check All of SIM card voltage KC550 Series support 1 8V 2 9V SIM only Resolder connector Yes No Check TP1 2V8 TP2 TP3 ...

Page 104: ...ng 105 uSD Check Points Power is working Socket soldering Card detect is working MicroSD_DETECT SIGNAL Card insert Card eject 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 Assemble ...

Page 105: ...Only for training and service purposes 6 Trouble shooting 106 General Circuits Check Power Circuit 1 Set HP8960 as below Active Cell GPRS 62ch 5level TCH 62ch 60dBm BCH 2 Establish Spectrum Analyzer Oscilloscope Check DCXO Circuit General function is OK YES YES Check RF Switch Circuit YES Fig 1 Troubleshooting flowchart of general circuits ...

Page 106: ...VSSRF14 W1 N2 VSSRF2 N3 VSSRF3 P2 VSSRF4 R2 VSSRF5 T2 VSSRF6 VSSRF7 U2 VSSRF8 U3 VSSRF9 U6 VSS_AUDIO E3 H2 VSS_EP E11 VSS_LDO1 C7 VIO C10 VLED A7 VMMC A3 VPLL VRF1 A2 B4 VRF2 B1 VRF3 A8 VSIM M2 VSSRF1 V2 VSSRF10 VDDPLL W6 VDDP_EBU_1 V19 L1 VDDRX T3 VDDTRX VDDTX W4 W5 VDDVCO VDDXO V7 VDD_FUSE_FS M4 L11 VDD_MAIN_1 VDD_MAIN_2 M11 VDD_MAIN_3 L9 M9 VDD_MAIN_4 D7 VDD_REF VDD_RF2PLL B3 D18 VDD_RTC E1 VAU...

Page 107: ...oltage of X100 is 820mVp p DCXO Circuit Replace X100 DCXO is OK See next part YES Is the waveform of TP X100 similar to Fig6 NO Fig 4 Debugging flowchart of DCXO circuit TP R123 DNI W7 XOX XO W8 REFR U4 G19 CLKOUT0 CC_CLK U9 V10 CC_IO V9 CC_RST GND1 2 4 GND2 HOT1 1 3 HOT2 NX3225SA X101 26MHz RPWRON SIM_CLK SIM_IO SIM_RST Fig 5 DCXO circuit X100 Fig 6 Waveform of DCXO TP ...

Page 108: ... PCS1900 DCS1800 GSM900 R504 100p 2 2nH R596 C513 2 7p 18nH L502 5 1nH L504 3 3p C518 L505 3 9nH C503 120p 15p C519 10nH L584 15nH L503 5 6p C515 3 3p C517 DUMMY FEED 15 GSM1800_1900_TX 7 GSM1900RX_OUT1 GSM1900RX_OUT2 8 GSM850RX_OUT1 1 GSM850RX_OUT2 2 17 GSM850_900_TX 3 GSM900RX_OUT1 GSM900RX_OUT2 4 21 NC 19 VC1 VC2 20 ANT501 LSHS C085FB U501 11 ANT GND1 9 24 GND10 GND2 10 12 GND3 GND4 13 GND5 14 ...

Page 109: ...rvice purposes 6 13 RF Receiver path Troubleshooting 6 12 4 RF START 1 Set HP8960 as below Active Cell GPRS 62ch 5level TCH 62ch 60dBm BCH 2 Establish Spectrum Analyzer Oscilloscope Check FEM Circuit After download S W Calibrate it General Circuits Troubleshooting YES YES Fig 9 Troubleshooting flowchart of RF Receiver path ...

Page 110: ...the next part Check Control signal of FEM TP1 TP2 Replace PCB NO YES R500 R591 U501 Fig 10 Debugging flowchart of FEM circuit Fig 11 FEM circuit U501 33p C500 NA L585 1 R501 15 GSM1800_1900_TX 7 GSM1900RX_OUT1 GSM1900RX_OUT2 8 GSM850RX_OUT1 1 GSM850RX_OUT2 2 17 GSM850_900_TX 3 GSM900RX_OUT1 GSM900RX_OUT2 4 21 NC 19 VC1 VC2 20 LSHS C085FB U501 11 ANT GND1 9 24 GND10 GND2 10 12 GND3 GND4 13 GND5 14 ...

Page 111: ...LG Electronics Inc All right reserved Only for training and service purposes 6 Trouble shooting 112 When GSM band called it must seem as below yellow is VC1 blue is VC2 When D PCS band called it must seem as below yellow is VC1 blue is VC2 ...

Page 112: ...ath Troubleshooting START Check Transmitter Circuit 1 Set HP8960 as below Active Cell GPRS 62ch 5level TCH 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 Fig 12 Troubleshooting flowchart of RF Transmitter path ...

Page 113: ...4 Does Power TP1 TP2 seem like about 3dBm Check U102 Check the next part YES NO Transmitter Circuit TP1 TP2 4 5 VRAMP 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 TQM7M5005 U500 C512 100p C527 VBAT 820p 1 R510 1 R507 33 uF C511 1000p C523 C526 100p 100p C525 4 7nH L572 27p C524 2 7nH L501 L500 NA ...

Page 114: ...er for GMSK modulation and shape of Tx burst For GMSK operation set the PA_EN input High and PA_MODE2 low 0 5v X don t care When EGSM band called it must seem as below Operational status PA_EN PA_BAND PA_MODE2 TX_RAMP Standby PA off 0 X X X Low Band GMSK Tx 1 0 0 Active Low Band EDGE Tx 1 0 1 X High Band GMSK Tx 1 1 0 Active High band EDGE Tx 1 1 1 X Is PAM Control Signal OK Replace PCB Check the ...

Page 115: ... Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 6 Trouble shooting 116 When D PCS band called it must seem as below PA_MODE2 PA EN TX_RAMP PA_BAND PA_MODE PA_MODE TX_RAMP PA_BAND ...

Page 116: ...t Fig 15 PAM circuit U500 4 5 VRAMP 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 TQM7M5005 U500 C512 100p C527 VBAT 820p 1 R510 1 R507 33 uF C511 1000p C523 C526 100p 100p C525 4 7nH L572 27p C524 2 7nH L501 L500 NA 1 R509 1 2K R508 1 R505 PA_BAND PA_MODE PA_EN TXLB TX_RAMP TXHB ...

Page 117: ...onics Inc All right reserved Only for training and service purposes 7 Download S W upgrade 7 Download S W upgrade 118 7 1 Download program user guide KC55 KC550 0 KC550 KC550 1 After GSMULTI folder copy paste C 2 MultiGSM exe execution file execute ...

Page 118: ... Electronics Inc All right reserved Only for training and service purposes 7 Download S W upgrade 119 7 2 Multi Download Program Setting Model Base KC KC550 50 KC KC550 Multi Download Program Execution Setting Configuration Setting Completed ...

Page 119: ...d S W upgrade LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes K KC55 550 0 KC KC550 Stand by Condition Wait phone connecting confirm Phone connection ...

Page 120: ...CLK R10 MMCI_CMD U10 F5 I2C_SCL I2C_SDA G5 J12 I2S1_CLK0 I2S1_RX E14 D15 I2S1_TX I2S1_WA0 J11 IREF1 B5 IREF2 L4 KP_IN1 A17 B16 KP_IN2 KP_IN3 B17 KP_IN4 D17 B15 KP_IN5 KP_IN6 K12 C14 KP_OUT0 KP_OUT1 C15 EBU_SDCLKI U15 EBU_SDCLKO U19 U18 EBU_WAIT_N N18 EBU_WR_N J2 EP_CM K2 EP_N EP_P G2 E19 F32K FCDP_RBN F18 FE1 N4 P5 FE2 E6 FLASH_SINK FSYS2 U7 R7 FSYS3 F2 HS_N HS_P K3 T14 EBU_AD7 R13 EBU_AD8 EBU_AD9...

Page 121: ...6 C2 LON D1 LOP LOUT B4 F5 MCLK MICBIAS A2 E2 MODE OUT3 A4 C4 OUT4 RIN1 U203 WM8990ECS_RV F4 ADCDAT ADCLRC_GPIO1 E4 A3 AGND A6 AVDD BCLK G5 CSB_ADDR F2 DACDAT F3 DACLRC G4 G6 DBVDD DCVDD F6 E6 DGND G2 GPIO3_BCLK2 G3 TP515 4 7u C219 1V8_CAM 1V8_VMM FB204 C233 1u R221 33 C231 100u 4 7u C244 47p 0 C216 R594 1 2 0 R592 CN201 47p C212 1u 1V8_VMM C202 TP228 1u C230 TP514 1V8_VMM L205 1nH C210 1u 0 1u C2...

Page 122: ... 9 G1 G2 G3 G4 EVSC5S04F050 12 13 14 15 16 17 18 19 2 20 3 4 5 6 7 10K CN304 1 10 11 R306 EVSC5S04F050 FL307 P1 1 2 P2 3 P3 P4 4 5 P5 P6 6 VBAT FB304 0 1u C306 680p R302 C321 330K 100K R316 L304 100nH C320 VIO_2V62 680p R315 100K VBAT C302 100p 150 C319 ICVFP10181E301FR FL301 GND1 GND2 IN OUT 1000 FB306 18 19 2 20 21 22 3 4 5 6 7 8 9 CN302 1 10 11 12 13 14 15 16 17 27p C311 VIO_2V62 C307 24p 2 2u ...

Page 123: ...I R413 47K 1K R416 1u VBAT R406 47K C414 100K R418 V U401 2 GND NC 3 1 OUT 5 PGND 4 VDD VBUS_USB 47K R403 BU52031NVX L401 47nH 3 3M R410 47nH L403 VIO_2V62 R415 100K 47K R412 C407 R498 DNI VRTC_2V0 DNI C403 1u C411 VSIM_2V8 VIO_2V62 0 1u 15 S6 13 11 S7 S8 10 ST1 17 18 ST2 T1 2 T2 3 4 T3 T4 5 6 T5 T6 7 8 T7 9 T8 VCHG S401 G1 19 20 G2 21 G3 16 S1 14 S2 S3 12 1 S4 S5 R497 DNI R411 47 1 2 3 47p C419 C...

Page 124: ...DIO 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 C5 B7 PIO_9 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 UART_RTS H5 UART_RX K7 UART_TX D8 PCM2_SYNC D10 PCM_CLK H9 PCM_IN K8 H7 PCM_OUT J10 PCM_SYNC PIO_0 A10 A9 ...

Page 125: ... SSC TWH104 HL LD103 31 32 33 34 35 36 37 4 5 6 7 8 9 17 18 19 2 20 21 22 23 24 25 26 27 28 29 3 30 CN101 1 10 11 12 13 14 15 16 VBAT R108 10 100K R104 0 1u C109 VA108 ICVL0505101V150FR VA114 VA112 EVLC14S02050 VA105 VA103 EVLC14S02050 VA113 VA110 VA107 ICVL0505101V150FR 2V8_CAM 1V8_CAM 10 R102 2V8_CAM SELECT VBAT VIO_2V62 LD101 SSC TWH104 HL KP_OUT 4 KP_OUT 3 KP_OUT 2 KP_OUT 0 KP_IN 6 KP_IN 5 KP_...

Page 126: ...0 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 CN101 1 VRTC_2V0 1V8_CAM EAR_P EAR_N R432 4 7K DIF_D 4 DIF_D 3 DIF_D 2 DIF_D 1 DIF_D 0 KEY_BL EAR_P EAR_N VBAT DIF_D 14 DIF_D 13 DIF_D 12 DIF_D 11 DIF_D 10 DIF_D 9 DIF_D 8 DIF_D 7 DIF_D 6 DIF_D 5 DTX3 KP_IN 5 KP_IN 6 KP_OUT 0 KP_OUT 1 KP_OUT 2 BL_RESETB I2C_SDA I2C_SCL END_KEY LCD_ID DIF_D 15 KP_IN 5 KP_IN 6 KP_OUT 0 KP_OUT 1 KP_OUT 2 KP_OUT 3 KP_OUT 4...

Page 127: ...VIO_2V62 VBAT VA104 108 VA107 AF CAM VA103 110 C103 100p 103 VA102 C108 0 1u C106 5 VDD 4 27p U101 BU52031NVX GND 2 3 NC OUT 1 PGND 10 R103 R102 10 109 ICVN0505X150FR VA110 VA108 105 C102 0 1u EVLC14S02050 VA111 VA109 L101 100nH 100nH L103 102 C105 0 1u 107 VA106 MIC_N MIC_P VMIC FLIP_OPEN KP_IN 4 KP_IN 3 KP_IN 2 VMIC MIC_P MIC_N FLIP_OPEN KP_IN 1 KEY_BL KP_IN 3 KEY_BL KP_OUT 0 4 KP_IN 2 KP_OUT 0 ...

Page 128: ... 7 4 G 9 H 6 B 1 F 12 1 8 11 3 A C 8 6 E Anode Cathode G A D 2 5 5 B H E F 4 9 12 LD1 CN1 1 2 8 CIRCUIT DIAGRAM LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 135: ... 136 9 BGM Pin Map LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes BGA IC Pin Check U101 in Key PCB BD6095 Not in use ...

Page 136: ...vice X101 NX3225SA 26MHz No Power on No Service X102 Crystal No booting U101 Memory No booting U304 Accel IC No accel sensing U304 Accel IC No accel sensing U500 TQM7M5005 Power amp Tx Power NO service U402 SUY98005LT1G No Vibrator U403 Charging IC No Charging No Booting No Service CN301 Slide FPCB Conn No display No Power on No Service U206 M180_P5 MM Chip No Display No Camera No Multi Media CN30...

Page 137: ...lide on off detection U202 Sub PMIC No LCD No Camera No Power on U303 Flash LED driver No camera flash ANT501 Antenna No Network SW500 Antenna switch No Network U302 USB switch No USB U502 Bluetooth No Bluetooth No FM radio ANT500 BT Antenna No Bluetooth CN401 No Power On CN302 18pin connector No charging No sound Headset No USB CN202 Camera connector No camera U301 Comparator No Hook detect U204 ...

Page 144: ...bration LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 11 1 Test Equipment Setup 11 2 Calibration Step 11 2 1 Turn on the Phone 11 2 2 Execute HK_30 exe 4 00 V 0 000 A ...

Page 145: ...RF Calibration 11 2 3 Click SETTING Menu 11 2 4 Setup Ezlooks menu such as the following figure LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 146: ...eration such as the following figure LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Adjust the number of times PWR Power Supply CELL Call Test Equipment Setup UART Port Operation Mode 1 By Pass not control by GPIB 2 Normal control by GPIB ...

Page 147: ...alibration 11 2 7 Select MODEL 11 2 8 Click START for RF calibration 11 2 9 RF Calibration finishes LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 148: ...e Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 11 RF Calibration 149 11 2 10 Calibration data will be saved to the following folder Saving format year month day_PASS ...

Page 149: ...es 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 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Normal Mode ptest Mode ...

Page 150: ...rved Only for training and service purposes 12 Stand alone Test 151 12 Stand alone Test 12 1 Test Program Setting 1 Set COM Port 2 Check PC Baud rate 3 Confirm EEPROM Delta file prefix name mpelite 4 Click Update Info for communicating Phone and Test Program Not Connected ...

Page 151: ...e Phone to ptest mode and then Click the Reset bar 6 Select Non signaling in the Quick Bar menu Then Standalone Test setup is finished LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Connected Change ptest mood ...

Page 152: ...e command line 2 Put the number of TX Channel in the ARFCN 3 Select Tx in the RF mode menu and PCL in the PA Level menu 4 Finally Click Write All bar and try the efficiency test of Phone LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 153: ...nally Click Write All bar and try the efficiency test of Phone 4 The Phone must be changed normal mode after finishing Test 5 Change the Phone to normal mode and then Click the Reset bar LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Change normal mode ...

Page 154: ...est 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 2 Model Version 2 1 Version 3 Eng Mode 3 1 Cell environ 3 2 PS Layer Info 3 2 1 Mobility 3 2 2 RadioRes 3 2 1 Gprs 3 3 Layer1 Info 3 4 Reset Information 3 5 Memory Configurarion 3 6 MemGenConf 3 7 MemAllUse 3 8 MemDetUse 3 9 MemDump 3 10 Change Frequency Band 4 Call Timer 5 F...

Page 156: ...48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 11 10 9 8 7 6 5 4 3 2 1 24 22 21 20 19 16 18 15 13 14 67 68 69 70 71 72 73 74 75 64 55 56 49 57 59 58 51 51 47 48 46 45 44 14 EXPLODED VIEW REPLACEMENT PART LIST 14 1 EXPLODED VIEW LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purpos...

Page 158: ... Black 66 4 MTAA00 TAPE DECO MTAA0153101 COMPLEX empty Without Color 70 4 MTAA01 TAPE DECO MTAA0156401 COMPLEX empty Without Color 72 4 MTAB00 TAPE PROTECTION MTAB0245201 COMPLEX empty 0 35 Without Color 76 2 APEY00 PHONE APEY0562901 Black 3 ACGM00 COVER ASSY REAR ACGM0107401 Black H 5 4 MBJL00 BUTTON SIDE MBJL0052701 COMPLEX empty Black 57 4 MBJL01 BUTTON SIDE MBJL0057201 COMPLEX empty Black 58 4...

Page 159: ...r 48 4 MTAD00 TAPE WINDOW MTAD0081401 COMPLEX empty Without Color 61 4 MTAD01 TAPE WINDOW MTAD0085201 COMPLEX empty Without Color 43 4 MWAE00 WINDOW CAMERA MWAE0032601 MOLD Tempered Glass Black 63 3 ACGQ00 COVER ASSY SLIDE ACGQ0023501 Black 1 4 ACGK00 COVER ASSY FRONT ACGK0105701 Black G 4 5 MCJK00 COVER FRONT MCJK0083901 MOLD PC LUPOY SC 1004ML Black 29 5 MDAG00 DECO FRONT MDAG0034601 MOLD POM LU...

Page 160: ...00 STOPPER MSGY0024001 COMPLEX empty Black 10 4 GMZZ00 SCREW MACHINE GMZZ0019007 M1 4 1 5 mm MSWR3 N NYLOK Coating WHITE SILVER 32 4 GMZZ01 SCREW MACHINE GMZZ0026401 1 4 mm 1 7 mm MSWR3 FZW A RWH 1 4 1 7 NYLON WHITE empty empty White 25 4 MCCH00 CAP SCREW MCCH0127901 MOLD PC LUPOY SC 1004A Silver 26 4 MIDZ01 INSULATOR MIDZ0162201 COMPLEX empty Without Color 7 4 MIDZ02 INSULATOR MIDZ0162301 COMPLEX...

Page 161: ...DCA00 DOME ASSY METAL ADCA0079701 KC550 slide 5pi D White 15 17 6 MTAC00 TAPE SHIELD MTAC0074101 COMPLEX empty Gold 6 MTAC01 TAPE SHIELD MTAC0074102 COMPLEX empty Gold 3 GMEY00 SCREW MACHINE BIND GMEY0011201 1 4 mm 3 mm MSWR3 BK N NYLOK Without Color 65 3 MLAK00 LABEL MODEL MLAK0006301 LG 30 5x21 5 4 1R Pearl White 5 ACKA00 CAN ASSY SHIELD ACKA0008601 KC550 SHIELD CAN ASSY Silver 35 6 MCBA00 CAN S...

Page 162: ...pF 50V J NP0 TC 1005 R TP 7 C103 CAP CERAMIC CHIP ECCH0000122 47 pF 50V J NP0 TC 1005 R TP 7 C424 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 L101 INDUCTOR CHIP ELCH0005009 100 nH J 1005 R TP 7 L102 INDUCTOR CHIP ELCH0005009 100 nH J 1005 R TP 7 R432 RES CHIP MAKER ERHZ0000485 4700 ohm 1 16W J 1005 R TP 7 VA1 VARISTOR SEVY0003601 5 6 V SMD 100pF 1005 7 VA2 VARISTOR SEVY0003601 5 6 ...

Page 163: ...C CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 7 C109 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 L101 INDUCTOR CHIP ELCH0005009 100 nH J 1005 R TP 7 L102 INDUCTOR CHIP ELCH0005009 100 nH J 1005 R TP 7 L103 INDUCTOR CHIP ELCH0005009 100 nH J 1005 R TP 7 LD101 DIODE LED CHIP EDLH0013701 WHITE ETC R TP SIDEVIEW empty 2 9 3 75 30mA 120mW empty empty 2P 7 LD102 DIODE LED CHIP EDLH0013...

Page 164: ...H0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C107 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C108 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 7 C109 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 7 C110 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 CN101 CONNECTOR FFC FPC ENQY0014301 37 PIN 0 3 mm S...

Page 165: ...7 LD105 DIODE LED CHIP EDLH0011901 WHITE 1608 R TP PB FREE ZENER 7 LD106 DIODE LED CHIP EDLH0011901 WHITE 1608 R TP PB FREE ZENER 7 R101 RES CHIP MAKER ERHZ0000402 10 ohm 1 16W J 1005 R TP 7 R102 RES CHIP MAKER ERHZ0000402 10 ohm 1 16W J 1005 R TP 7 R103 RES CHIP MAKER ERHZ0000402 10 ohm 1 16W J 1005 R TP 7 R105 RES CHIP MAKER ERHZ0000402 10 ohm 1 16W J 1005 R TP 7 R107 RES CHIP MAKER ERHZ0000402 ...

Page 166: ...04 1 uF 6 3V K X5R TC 1005 R TP 6 C208 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C209 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C210 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C211 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C212 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C213 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3...

Page 167: ...V K X7R HD 1005 R TP 6 C262 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C263 CAP TANTAL CHIP ECTH0004807 10 uF 10V M STD 1608 R TP empty empty 55TO 125C empty empty empty empty 6 C264 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C265 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C266 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C267 CAP CHIP...

Page 168: ...R TP 6 C323 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C324 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C401 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C403 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C404 CAP CERAMIC CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 6 C405 CAP CERAMIC CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 6 ...

Page 169: ... 6 C546 CAP CERAMIC CHIP ECCH0000112 15 pF 50V J NP0 TC 1005 R TP 6 C547 CAP CERAMIC CHIP ECCH0000112 15 pF 50V J NP0 TC 1005 R TP 6 C548 CAP CHIP MAKER ECZH0000822 1 5 pF 50V C NP0 TC 1005 R TP 6 C549 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C550 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C551 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C553 CA...

Page 170: ...PF 2450 100 SMD R TP 6 L202 INDUCTOR SMD POWER ELCP0010001 2 2 uH M 2 5x2 0x1 0 R TP chip MLCI 20 NON SHIELD 2 5X2X1MM empty R TP 6 L203 INDUCTOR SMD POWER ELCP0010001 2 2 uH M 2 5x2 0x1 0 R TP chip MLCI 20 NON SHIELD 2 5X2X1MM empty R TP 6 L205 INDUCTOR CHIP ELCH0004703 1 nH S 1005 R TP 6 L301 INDUCTOR CHIP ELCH0009114 100 nH J 1005 R TP coil 6 L302 INDUCTOR CHIP ELCH0010302 100 nH J 1608 R TP ch...

Page 171: ...J 1005 R TP 6 R311 RES CHIP MAKER ERHZ0000483 47 ohm 1 16W J 1005 R TP 6 R314 RES CHIP MAKER ERHZ0000439 200 Kohm 1 16W J 1005 R TP 6 R315 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R316 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R320 PCB ASSY MAIN PAD SHORT SAFP0000501 6 R401 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R402 RES CHIP MAKER ERHZ0000485 4700 ohm ...

Page 172: ... SHORT SAFP0000501 6 R594 PCB ASSY MAIN PAD SHORT SAFP0000501 6 R596 INDUCTOR CHIP ELCH0004721 2 2 nH S 1005 R TP 6 R597 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R598 RES CHIP MAKER ERHZ0000451 27 ohm 1 16W J 1005 R TP 6 R599 RES CHIP MAKER ERHZ0000451 27 ohm 1 16W J 1005 R TP 6 R600 RES CHIP MAKER ERHZ0000236 2000 ohm 1 16W F 1005 R TP 6 S401 CONN SOCKET ENSY0018601 16 PIN ETC 2 54...

Page 173: ...ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C109 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C110 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 6 C111 CAP CHIP MAKER ECZH0000816 12 pF 50V J NP0 TC 1005 R TP 6 C112 CAP CHIP MAKER ECZH0000813 100 pF 50V J NP0 TC 1005 R TP 6 C113 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C114 CAP CERAMIC CHIP ECCH0000155 1...

Page 174: ...R ECZH0025502 22000000 pF 6 3V M X5R HD 2012 R TP 0 85t empty empty empty empty empty empty 6 C141 CAP CHIP MAKER ECZH0025502 22000000 pF 6 3V M X5R HD 2012 R TP 0 85t empty empty empty empty empty empty 6 C142 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 6 C143 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty emp...

Page 175: ... CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C259 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C260 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C261 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C272 VARISTOR SEVY0004001 18 V SMD 3pF 1005 6 C273 VARISTOR SEVY0004001 18 V SMD 3pF 1005 6 C274 VARISTOR SEVY0004001 18 V SMD 3pF 1005 6 C275 VARISTOR...

Page 176: ...R HD 1005 R TP 6 C524 CAP CERAMIC CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 6 C525 CAP CHIP MAKER ECZH0000813 100 pF 50V J NP0 TC 1005 R TP 6 C526 CAP CHIP MAKER ECZH0000813 100 pF 50V J NP0 TC 1005 R TP 6 C527 CAP CHIP MAKER ECZH0001126 820 pF 50V K X7R HD 1005 R TP 6 C555 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C570 CAP CERAMIC CHIP ECCH0000701 1 2 pF 50V C NP0 TC 1005 R ...

Page 177: ...8 R TP chip coil PBFREE 6 L204 INDUCTOR CHIP ELCH0004703 1 nH S 1005 R TP 6 L206 INDUCTOR CHIP ELCH0004703 1 nH S 1005 R TP 6 L207 INDUCTOR CHIP ELCH0004703 1 nH S 1005 R TP 6 L208 INDUCTOR CHIP ELCH0004703 1 nH S 1005 R TP 6 L401 INDUCTOR CHIP ELCH0004722 47 nH J 1005 R TP 6 L402 INDUCTOR CHIP ELCH0005009 100 nH J 1005 R TP 6 L403 INDUCTOR CHIP ELCH0004722 47 nH J 1005 R TP 6 L501 INDUCTOR CHIP E...

Page 178: ...HZ0000267 3300 ohm 1 16W F 1005 R TP 6 R126 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP 6 R128 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R129 PCB ASSY MAIN PAD SHORT SAFP0000501 6 R131 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R132 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R134 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R135 RES CHIP MA...

Page 179: ...6 R217 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R219 RES CHIP MAKER ERHZ0000505 680 ohm 1 16W J 1005 R TP 6 R220 RES CHIP MAKER ERHZ0000412 1200 ohm 1 16W J 1005 R TP 6 R221 RES CHIP MAKER ERHZ0000463 33 ohm 1 16W J 1005 R TP 6 R224 PCB ASSY MAIN PAD SHORT SAFP0000501 6 R226 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R227 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005...

Page 180: ...32Mx16 SDRAM IC MCP 6 U102 IC EUSY0227901 SON5 P 0 35 fSV 5 PIN R TP 2 INPUT AND GATE Pb Free 6 U103 IC EUSY0173801 SC70JW 8 PIN R TP 5 Individual Load Switch 6 U104 IC EUSY0347801 BGA 293 PIN R TP EDGE RF BB PM Onechip BB IC Digital Baseband Processor 6 U105 IC EUSY0173801 SC70JW 8 PIN R TP 5 Individual Load Switch 6 U201 IC EUSY0240001 MICROPAK 6 PIN R TP SINGLE BIT UNIT DIRECTIONAL TRANSLATOR P...

Page 181: ...ack 3 SGDY00 DATA CABLE SGDY0010904 empty empty empty 18 BLACK 6 2mm Plug Datacable empty 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 A...

Page 182: ...Note ...

Page 183: ...Note ...

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LG KC550, Service Manual, Page: 105 / 183

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Summary of Contents for KC550

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