LG KE 770 Service Manual Download Page 83

Page: 83 / 144

5. Trouble shooting

- 84 -

5.9 Keypad back light trouble

Check Points

-Signal path is connected well

-Control IC is working properly

VBAT

R534

R530
100K

C530

1uF

C531
1uF

SSC-SWTS1007

LD504

R533

LD503

SSC-SWTS1007

VIN

VOUT

BH33FB1WHFV

U502

BGND

GND

STBY

C542

C543
NA

LGF_EN

Check LGF_EN (R530) Signal
when Key backlight ON

U502

LD503

LD504

Summary of Contents for KE 770

Page 1: ...Service Manual Model KE770 Service Manual KE770 Date April 2007 Issue 1 0 ...

Page 2: ...E 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 KE770 REVISED HISTORY Editor Date Issue Contents of Changes S W Version K M J 2007 01 10 0 1 K M J 2007 03 20 0 2 ...

Page 3: ... 4 ...

Page 4: ...art 61 3 20 Transmitter part 62 3 21 RF synthesizer 63 3 22 VCTCXO 63 3 23 Front End Module control 64 3 24 Power Amplifier Module 65 4 PCB layout 66 4 1 Main Sub PCB component placement 66 5 Trouble shooting 68 5 1 Trouble shooting test setup 68 5 2 Power on Trouble 69 5 3 Charging trouble 72 5 4 LCD display trouble 75 5 5 Camera Trouble 76 5 6 Receiver Speaker trouble 78 5 7 Microphone trouble 8...

Page 5: ... 6 ...

Page 6: ...responsible for any charges that result from such unauthorized 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 ...

Page 7: ...ment medical equipment etc Interference from unsuppressed 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 boa...

Page 8: ... of the measured power referenced to one milliwatt DSP Digital Signal Processing EEPROM Electrical Erasable Programmable Read Only Memory EGPRS Enhanced General Packet Radio Service EL Electroluminescence ESD Electrostatic Discharge FPCB Flexible Printed Circuit Board GMSK Gaussian Minimum Shift Keying GPIB General Purpose Interface Bus GPRS General Packet Radio Service GSM Global System for Mobil...

Page 9: ...Rating RMS Root Mean Square RTC Real Time Clock SAW Surface Acoustic Wave SIM Subscriber Identity Module SLR Sending Loudness Rating SRAM Static Random Access Memory STMR Side Tone Masking Rating TA Travel Adapter TDD Time Division Duplex TDMA Time Division Multiple Access UART Universal Asynchronous Receiver Transmitter VCO Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensa...

Page 10: ...t power GSM900 32dBm Level 5 DCS PCS 29dBm Level 0 GPRS compatibility Class 10 SIM card type 3V Plug in Type Display 176 x 220 pixels 265K color TFT Soft icons Key Pad Status Indicator 0 9 Navigation Key Clear Key Volume key END PWR Key Camera key ANT Built in antenna EAR Phone Jack 18pin multi port Ear_jack with Remote controller PC Synchronization Yes Speech coding HR EFR FR AMR Data and Fax Yes...

Page 11: ... degrees 3 Frequency Error 0 1ppm GSM900 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 4 Power Level 12 19 dBm 3dB DCS1800 PCS1900 Level Power Toler Level Power Toler 0 30 dBm 2dB 8 14 dBm 3dB 1 28 dBm 3dB 9 12 dBm 4d...

Page 12: ...0 60 1 800 3 000 63 3 000 6 000 65 5 Output RF Spectrum 6 000 71 due to modulation 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 GSM850 Offset from Carrier kHz Max dBm Output RF Spectrum 400 19 6 due to switching transient 600 21 1 200 21 1 800 24 ...

Page 13: ...BER Class II 2 439 102dBm DCS1800 PCS1900 BER Class II 2 439 100dBm 9 Rx Level Report accuracy 3 dB 10 SLR 8 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 0 12 11 Sending Response 1 000 0 6 2 000 4 6 3 000 4 6 3 400 4 9 4 000 0 12 RLR 2 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 2 7 500 5 13 Receiving Response 1 000 0 5 3 000 2 5 3 400 2 10 4 000 2 Mean that Adopt a straight line in betwe...

Page 14: ...ttery Capacity 800mA 240 min GSM900 Lvl 12 Battery Capacity 800mA 420 min Under conditions at least 300 hours 1 Brand new and full 800mAh battery 22 Standby Time 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 At least 65 dB under below conditions 23 Ringer Volume 1 Ringer set as ringer 2 Test d...

Page 15: ... 85V 2 3 75V 3 69V 1 3 69V 3 62V 0 3 62V 27 Low Voltage Warning 3 58V 0 05V Call 3 50V 0 05V Standby 28 Forced shut down Voltage 3 4 0 05 V Li ion Battery 29 Battery Type Standard Voltage 3 7 V Battery full charge voltage 4 2 V Capacity 800mAh Switching mode charger 30 Travel Charger Input 100 240 V 50 60Hz Out put 4 8V 0 9A ...

Page 16: ... 5dB 9 25dBm 3dB 17 9dBm 5dB 10 23dBm 3dB 18 7dBm 5dB 11 21dBm 3dB 19 5dBm 5dB 5 Power Level 12 19dBm 3dB DCS1800 PCS1900 Level Power Toler Level Power Toler 0 26dBm 3dB 8 14 dBm 3dB 1 26dBm 3dB 9 12 dBm 4dB 2 26dBm 3dB 10 10 dBm 4dB 3 24 dBm 3dB 11 8 dBm 4dB 4 22 dBm 3dB 12 6 dBm 4dB 5 20 dBm 3dB 13 4 dBm 4dB 6 18 dBm 3dB 14 2 dBm 5dB 7 16 dBm 3dB 15 0 dBm 5dB 6 Output RF Spectrum EGSM due to mod...

Page 17: ...m 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: ...3 TECHNICAL BRIEF 19 Baseband circuit 3 1 KE770 Component Block diagram 3 TECHNICAL BRIEF Figure 1 KE770 Functional block diagram ...

Page 19: ...such as camera software MIDI MP3 sound It is designed as a single chip solution integrating the digital and mixed signal portions of the base band in 0 13um 1 5V technology The chip will fully support the FR EFR HR and AMR NB vocoding S GOLD2TM support multi slot operation modes HSCSD up to class 10 GPRS for high speed data application up to class 12 and EGPRS up to class 12 without additional ext...

Page 20: ...nnected by powerful buses Multi layer AHB for connecting the ARM and the other master capable building blocks with the internal and external memories and with the peripheral buses Clock system The clock system allows widely independent selection of frequencies for the essential parts of the S GOLD2 Thus power consumption and performance can be optimized for each application Functional Hardware blo...

Page 21: ...rface e g connection to S M power A fast display interface supporting serial and parallel interconnection An ITU R BT 656 compatible Camera interface Programmable clock output for a camera An multimedia Secure Digital Card Interface MMCI SD SDIO capable 3 2 3 External Devices connected to memory interface Table 1 Memory interface 3 2 4 RF Interface T_OUT S Gold2 uses this interface to control RF I...

Page 22: ...USART1 Resource Name Remark USART0_TXD TXD_0 Transmit Data USART0_RXD RXD_0 Receive Data USART0_CTS CTS_0 Clear To Send USART0_RTS RTS_0 Request To Send DSR N C USART_1 USART2 USART1_TXD TX_DEBUG Trace data tx USART1_RXD RX_DEBUG Trace data rx USART1_CTS N C N C USART1_RTS N C N C ADC channel Resource Interconnection Description M0 BATT_TEMP Battery temperature measure M1 RF_TEMP RF block temperat...

Page 23: ...r to Key Matrix KP_IN3 KP_IN3 Refer to Key Matrix KP_IN4 KP_IN4 Refer to Key Matrix KP_IN5 KP_IN5 Refer to Key Matrix KP_IN6 KP_OUT5 Refer to Key Matrix KP_OUT0 KP_OUT0 Refer to Key Matrix KP_OUT1 KP_OUT1 Refer to Key Matrix KP_OUT2 KP_OUT2 Refer to Key Matrix KP_OUT3 KP_OUT3 Refer to Key Matrix USART_0 USART0_RXD RXD_0 UARTO RS232 Data USART0_TXD TXD_0 UARTO RS232 Data USART0_RTS_N CTS_0 UARTO RS...

Page 24: ...a DATA 7 CIF_PCLK CIF_PCLK Camera pixel clock CIF_HSYNC CIF_HS Camera H sync CIF_VSYNC CIF_VS Camera V sync CLKOUT CIF_MCLK Camera main clock CIF_PD CIF_PD Camera power down active high CIF_RESET CIF_RESET Camera reset LCD IF DIF_D0 DIF_D 0 LCD data 0 DIF_D1 DIF_D 1 LCD data 1 DIF_D2 DIF_D 2 LCD data 2 DIF_D3 DIF_D 3 LCD data 3 DIF_D4 DIF_D 4 LCD data 4 DIF_D5 DIF_D 5 LCD data 5 DIF_D6 DIF_D 6 LCD...

Page 25: ... SIM_RST SIM CARD RESET I2S I2S2_CLK0 I2S2_CLK GPIO_102 _WP I2S2_RX Not Use I2S2_TX Not Use I2S2_WA0 Not Use I2S2_WA1 Not Use EXTERNAL MEMORY MMCI_CMD TF_CMD For T Flash MMCI_DAT 0 TF_DAT0 MMCI_CLK TF_CLK BT I F USIF_TXD_MTSR USIF_TXD For Bluetooth USIF_RXD_MRST USIF_RXD GPIO_109 _USB_EOC USB End of charging detect High EOC Low charging GPIO_110 RPWRON Remote power on detect High Remote Low Normal...

Page 26: ...ICP1 MIC1_P MICN2 MIC2_N For Headset Mic MICP2 MIC2_P VMICP VMICP For Mic VMICN VMICN ADC M_0 BAT_TEMP Battery temperature detect M_1 RF_TEMP RF Power amp reference temperature detect M_2 JACK_TYPE For 18Pin Cable Type Detect M_7 HW revision indication M_8 Battery voltage measurement M_9 I_MONITOR Current consumption measurement M_10 REMOTE_ADC For Remote Control Headset Key detect with REMOTE_INT...

Page 27: ...ACEPKT 5 TRACEPKT 6 TRACEPKT 6 TRACEPKT 7 TRACEPKT 7 Data bus EBU_AD 0 D 0 Data bus 0 EBU_AD 1 D 1 Data bus 1 EBU_AD 2 D 2 Data bus 2 EBU_AD 3 D 3 Data bus 3 EBU_AD 4 D 4 Data bus 4 EBU_AD 5 D 5 Data bus 5 EBU_AD 6 D 6 Data bus 6 EBU_AD 7 D 7 Data bus 7 EBU_AD 8 D 8 Data bus 8 EBU_AD 9 D 9 Data bus 9 EBU_AD 10 D 10 Data bus 10 EBU_AD 11 D 11 Data bus 11 EBU_AD 12 D 12 Data bus 12 EBU_AD 13 D 13 Da...

Page 28: ... A 11 Address bus 11 EBU_A 12 A 12 Address bus 12 EBU_A 13 A 13 Address bus 13 EBU_A 14 A 14 Address bus 14 EBU_A 15 A 15 Address bus 15 EBU_A 16 A 16 Address bus 16 EBU_A 17 A 17 Address bus 17 EBU_A 18 A 18 Address bus 18 EBU_A 19 A 19 Address bus 19 EBU_A 20 A 20 Address bus 20 EBU_A 21 A 21 Address bus 21 EBU_A 22 A 22 Address bus 22 EBU_A 23 A 23 Address bus 23 EBU_A 24 A 24 Address bus 24 EB...

Page 29: ...50 KP_OUT 4 Key pad GPIO_51 AU_PWR_EN Audio amp power enable active high CC1CC3IO LCD BACKLIGHT LCD Backlight Control GPIO_53 JACK_DETECT For Headset Detect High unplugged Low plugged GPIO_54 _FM_RESET FM Radio chip reset GPIO_55 AF_PWR_EN Auto focus power enable active high RF_STR0 EN RF Transceiver chip enable GPIO_57 TF_DETECT Micro SD card detect High inserted Low ejected RF_DATA DA RF Transce...

Page 30: ...z RESET_n _RESET Baseband processor reset CC1CC1IO TRIG_OUT For JTAG ETM Interface RTC_OUT RTC_OUT Wake up signal to alarm High wake up Low Power off VCXO_EN VCXO_EN 26MHz clock enable DSP DSPIN0 _BT_RESET Bluetooth chip reset GPIO_62 Not Use GPIO_63 _SIM_EN SIM card power enable ...

Page 31: ...ow drop out LDO regulators for Flash and mobile RAM memory devices Voltage independent switching of two SIM cards LDO regulators for baseband I O supply LDO regulator for analog mixed signal section of S GOLD Low noise LDO regulators for RF devices Supply for Bluemoon Single Infineon s single chip solution for Bluetooth Audio amplifier 8 Ohms for handsfree operation and ringing Charge Control for ...

Page 32: ...C DC converter makes up to 40 reduction of battery current for smart phone functions e g organizer functions games MP3 decoding possible SDBB has high efficiency up to 95 and also a power save mode Memory Interface is directly supported by the SDBB SDBB can also act as main supply voltage for E GOLD or S GOLDlite baseband devices For S GOLD two linear regulators for DSP and Core are cascaded after...

Page 33: ...d voltage for S GOLD USB interface including reverse current and over voltage protection Switch to supply USB pull up resistor Mini host pull down resistor functionality Charge pump with internal switching capacitor for USB host VBUS supply voltage SM POWER fully supports LED and Vibra Motor functionality no external components needed driver for backlight LEDs adjustable in steps up to 140mA and w...

Page 34: ...1uF C215 FB203 2V7_VCXO 2V11_RTC 2 2K R215 C209 2 2u 1V8_MEM 2 2u C212 C210 2 2u VLBB1 47 VLBB2 VMMC 20 VRF1 40 VRF2 38 37 VRF3 VRFC 3 VRTC 42 18 VSIM1 19 VSIM2 27 VSSAU 8 VSSFB 7 VSSPW VSSR 33 VUPU 10 VUSB 11 SW 34 VANA VBATS 2 12 VBUS VCHC 44 1 VCHS 36 VCXOEN VDDA 35 VDDAU 30 VDDB 17 VDDC 46 VDDCH 43 VDDPW 5 39 VDDRF VIB 13 VINT 21 45 26 AUON 28 29 AUOP BYP 31 9 FB GND 49 41 INTOUT 32 IREF LED 1...

Page 35: ...on reduces the charge current automatically to prevent further temperature rise The charger preconditions the battery with low current when the battery voltage is below 2 6V The charger has two indication pins The PPR power present pin outputs an open drain logic LOW when either the cradle or the USB input power is attached The CHG charge pin is also an open drain output that indicates a logic LOW...

Page 36: ...tion current icon stop current 100mA 8 Recharge voltage 4 00V 9 Low battery alarm a Idle 3 50V 3 35V b Dedicated 3 56V 3 35V 10 Low battery alarm interval a Idle 3min b Dedicated 1min 11 Switch off voltage 3 35V 12 Charging temperature adc range a 5 C low charging voltage operation 3 6V 3 9V b 5 C 50 C standard charging up to 4 2 V c 50 C low charging voltage operation 3 6V 3 9V ...

Page 37: ... the push button is pressed during system operation the logical level at pin ON or its change if Bit 1 EION in INTCTRL2 is asserted is recorded in bit LON of the ISF register If the high level of voltage at pin ON does not reach VIHdet Vbat 0 8 Vbat 0 3 the above mentioned bit won t be set To support Remote power on function for factory mass production applied an analog switch as following figure ...

Page 38: ...c reset SIM_IO SIM card bidirectional reset Figure8 Remote power on and End key power on circuit Figure 9 SIM CARD Interface 0 1u C512 C5 C6 5 C7 6 7 GND1 GND2 8 GND3 9 10 GND4 CN500 1 C1 2 C2 C3 3 4 R505 NA 2V85_SIM NA C535 NA C510 Q500 D G S SI1305 E3 10K R507 SIM_IO SIM_RST SIM_CLK _SIM_EN REMOTE END_KEY END KEY POWER ON KDR331V 3 1 2 D201 10K R223 0 R220 1 2 3 CN202 3 1 R225 NA Q201 2 2SC5585 ...

Page 39: ...5 F_CLK F_DPD B6 F_VPP J1 F_WAIT J9 G7 F__RST F__WP1 E1 F__WP2 A9 M1 DU3 DU4 M9 G4 D_BA0 D_BA1 H4 D_CKE G6 D_CLK J5 H9 D_DM0_S__LB D_DM1_S__UB H8 M3 D_LDQS D_UDQS M7 C5 D_VCC1 D_VCC2 D3 D_VCC3 D7 D__CAS F3 D__CLK H5 D__RAS L1 DQ10 M6 DQ11 L7 L8 DQ12 K9 DQ13 DQ14 L9 DQ15 M8 K1 DQ2 L2 DQ3 DQ4 M4 DQ5 L3 DQ6 L4 DQ7 L5 M5 DQ8 L6 DQ9 DU1 A1 DU2 A21 B7 A22 A23 A6 A24 A7 A8 A25 A26 B8 A3 B2 A2 A4 A5 B3 A3...

Page 40: ...P I Speaker signal 10 SPK_RCV_N I Speaker signal 11 GND GROUND 12 VIBRATOR_P I Vibrator_P 13 GND GROUND 14 NC 15 NC 16 NC 17 GND GROUND 18 GND GROUND 19 DIF_D8 I O Data 8 for LCD 20 DIF_D9 I O Data 0 for LCD 21 DIF_D10 I O Data 10 for LCD 22 DIF_D11 I O Data 11 for LCD 23 DIF_D12 I O Data 12 for LCD 24 DIF_D13 I O Data 13 for LCD 25 DIF_D14 I O Data 14 for LCD 26 DIF_D15 I O Data 15 for LCD 27 IF_...

Page 41: ...3 KP_IN 5 KP_OUT 2 END KEY 1 2 3 CN202 R225 NA VBAT END_KEY KEY PAD PART T501 T509 T502 R521 0 EVL14K02200 VA509 T507 STAR R512 0 EVL14K02200 VA505 BACK SHAP OK 0 R524 T506 EVL14K02200 VA503 DOWN EVL14K02200 VA508 VA504 EVL14K02200 LEFT T508 MENU CLR EVL14K02200 VA510 VA502 EVL14K02200 SEND T500 VA507 EVL14K02200 T504 RIGHT 0 R526 R523 0 0 T503 UP R514 T505 R511 0 EVL14K02200 VA511 R515 0 0 R513 R...

Page 42: ... selected by comparing the forward voltage of each LED with the input voltage VBAT 56 R534 R530 100K C530 1uF 1 A 2 C C531 1uF SSC SWTS1007 LD504 1 A 2 C R533 56 LD503 SSC SWTS1007 3 VIN VOUT 4 BH33FB1WHFV U502 6 BGND 2 GND NC 5 STBY 1 NA C542 C543 NA LGF_EN LCD BACKLIGHT CAMERA FLASH LED DRIVER C222 27p FB201 VBAT C201 1u 27p C220 C214 1u C218 1u R203 120 R212 100K 120 R210 LD201 LEWWH25LA 120 R2...

Page 43: ...ire latches data or address after the EN SET pin has been held high for time TLAT The interface records rising edges of the EN SET pin and decodes them into 16 different states as indicated in table 3 TECHNICAL BRIEF 44 Figure 14 EN SET port control method Table 8 Charge pump IC LCD part current setting tabl ...

Page 44: ...tion PCB 1 1 BATTERY CURRENT MONITOR 47 milli Ohm VSUPPLY 2 2K R209 R207 1K GND 2 3 IOUT LOAD 5 1 NC VIN 4 U201 ZXCT1010E5TA R204 47mohm C204 1u VBAT CN201 G1 G2 1 2 3 C213 27p BATT_TEMP I_MONITOR Figure 15 Current monitor circuit TP114 TP115 1V8_MEM G3 G4 R126 NA 26 27 28 29 30 17 18 19 20 21 22 23 24 G1 G2 10 11 12 13 14 15 2 3 4 5 6 7 8 9 16 25 CN101 1 NA R127 2V72_IO TRACEPKT 1 TRACEPKT 2 TRAC...

Page 45: ...o a mono 8 load 25mW per channel of continuous average power into stereo 32 single ended SE loads The LM4946 features a 32 step digital volume control and eight distinct output modes The digital volume control 3D enhancement and output modes mono SE OCL are programmed through a two wire I2C interface that allows flexibility in routing and mixing audio channels 3 TECHNICAL BRIEF 46 Figure 17 Audio ...

Page 46: ... 16 VDD2 2 VOC CBYPASS 21 GND1 4 12 GND2 20 GND3 14 I2CSPI_SEL I2CSPI_VDD 7 13 ID_ENB 18 LHP3D1 LHP3D2 1 LIN 9 6 LOUT 15 LM4946SQX U206 4 7K R261 C264 1u BBP_SND_L BBP_SND_R SPK_N SPK_P BBP_SND_L HS_OUT_L BBP_SND_R HS_OUT_R SCL SDA MAIN SPEAKER RECEIVER PATH Control RCV_P N SPK_P N H SPK_RCV_SWITCH SPK_RCV_SEL L SPK_RCV_P N Links to C290 VBAT NA 1u C242 L203 27nH EVL5M02200 VA202 27p C246 39p C245...

Page 47: ...rophone with gain switching circuit Microphone Gain 42dB MICROPHONE FB1 1 2 MIC500 OSF213 42DC 0 1u R506 0 C506 R501 1K R503 1K 0 1u C503 7p C547 10u C546 C502 NA R543 1K 0 R504 C508 NA VMICN MIC1_N VMICP MIC1_P Figure 20 Microphone ...

Page 48: ... detecting to S GOLD2 S GOLD2 maintain low level of CHG_LED_CTRL until get EOC End Of Charging message from SM POWER The LD100 controlled by S GOLD2 both power off and power on case When USB cable is connected via MMI connector indicator LED is controlled same mechanism with TA inserted case USB charging EOC is not indicated when the terminal is in off status LED just indicates charging status eve...

Page 49: ...3 TECHNICAL BRIEF 50 3 15 BLUETOOTH Figure 22 BLUETOOTH Functional block diagram ...

Page 50: ...om 40 C up to 85 C Boundary scan for interface lines via JTAG 3 15 2 Micro Controller Section ARM7TDMI STM ARM Processor for protocol and application software Timers Watchdog Interrupt Module 3 15 3 Micro Controller Memory 32 KByte RAM 256 KByte read only Program Memory 8 KByte Patch RAM 3 15 4 Interfaces UART Bluetooth Interface support for HCI UART and Three Wire UART transport layers with witho...

Page 51: ...r amplifier Separate TX output interface to PA bypass of internal T R switch Digital power step control Receiver sensitivity typ 90dBm High performance integrated LNA with excellent blocking and inter modulation performance Low IF receiver topology eliminates external IF filters Digital demodulation for optimum sensitivity and co adjacent channel performance Digital offset compensation symbol and ...

Page 52: ...rface lines UARTTXD and UARTRXD are needed The hardware flow control lines UARTRTS and UARTCTS are supported but the use is optional In KE770used three wire UART communication The UART interface has its own supply voltage VDDUART to ensure compatibility with the I O voltages used by the S Gold2 The PCM I2S interface is used as audio interface and can handle up to two voice channels The PCM interfa...

Page 53: ...DRFREG2 E2 VDDSUP F1 H9 VDDUART A8 VDD_1 H5 RFOUT B9 RTCK C9 SCL0_P0_13 F8 SLEEPX_P0_15 B7 TCK A7 TDI TDO B6 TMS B4 TRST_ A6 J3 TXA1 TXA2 H3 J2 TXAX H7 TX_CONF_P0_14 A2 TX_CONF_RXON UARTCTS G8 J8 UARTRTS A1 NC1 NC2 A9 NC3 J1 J9 NC4 P1_6 C1 A4 PAON D9 PCMCLK PCMFR1 D8 PCMFR2_SDA0_P0_12 C8 G9 PCMIN PCMOUT E8 PSEL0 A3 B8 PSEL1 RESET_ D1 J4 RFIO RFIOX J5 U305 PMB8753 CLK32_P1_5 C2 CLKIN_XTAL G1 JTAG_ ...

Page 54: ...25 Micro SD pin assignment TRANS FLASH CONNECTOR PART VCARD U501 BH29FB1WHFV BGND 6 GND 2 5 NC 1 STBY VIN 3 4 VOUT VBAT C524 0 1u 0 R525 DAT3 2 GND1 9 GND2 10 GND3 11 12 GND4 4 VDD 6 VSS R519 100K S500 SCHB1A0202 ENSY0017701 5 CLK 3 CMD 7 DAT0 DAT1 8 DAT2 1 R527 470K C521 1uF NA R535 1uF C522 NA R518 R520 100K C523 1u VCARD 100K R510 R516 100K TF_DAT3 TFLASH_EN TF_DETECT TF_CLK TF_CMD TF_DAT0 TF_D...

Page 55: ...th table 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 bit 1 Micro SD card status it is removed it is inserted TF_DETECT High Low ...

Page 56: ...337 C508 18p 220K R326 R335 NA FB302 10K R328 1 5K R324 VA303 VBUS_USB 2V65_ANA 10u C323 VA302 22K R330 C342 27p VA304 100p C320 R322 1M 27p C317 100p C321 C325 0 1uF 10p C324 0 1uF C322 C340 4 7u 47K R329 C331 33u VA301 2V72_IO 2V85_IO2 VCHG C330 27p 47 R333 R327 10K R325 2 2K R338 47 U303 MAX9075EXK T 2 GND OUT 1 VCC 5 3 VIN VIN 4 FB304 7 8 9 13 14 15 16 17 18 19 2 20 21 22 3 4 5 6 CN305 1 10 11...

Page 57: ...3 TECHNICAL BRIEF 58 RF Block Diagram III 2 RF circuit ...

Page 58: ...nd consists of a direct conversion receiver and a quad band polar transmitter for GSM and EDGE with integrated PGA functionality Further on a completely integrated SD synthesizer with HSCSD and GPRS EDGE capability a digitally controlled reference oscillator with three outputs a fully integrated quad band RF oscillator and a three wire bus interface with all necessary control circuits complete the...

Page 59: ...0 35 4 7 CLK DA 6 EN 16 32 FE1 33 FE2 FSYS1 14 FSYS2 10 9 FSYS3 GND1 13 26 GND2 GND3 40 41 GND4 RX1 29 30 RX1X RX2 27 28 PMB6272 U401 1 A AX 2 3 B BX 1V5_RF 0 R410 C431 22p 0 1uF C427 0 1uF 2V85_RF C411 C407 1u C433 0 1uF 2V7_VCXO C406 1u X401 26MHz 2 GND OUT 3 4 VCC 1 VCONT 0 1uF C434 C404 NA 0 R413 10 0 1uF R404 C412 C428 47n C425 0 01u C435 1000p C430 1u NA C413 C408 1u 2V85_RF 10 R403 820 R411...

Page 60: ...el filter output buffer and DC offset compensation The 3rd 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 s...

Page 61: ...oordinates by means of a CORDIC algorithm The resulting amplitude information is fed into a digital multiplier for power ramping and level control The ready processed amplitude signal is applied to a DAC followed by a low pass filter which reconstructs the analog amplitude information The phase signal from the CORDIC is applied to the Sigma Delta fractional N modulation loop The divided output of ...

Page 62: ...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 four GSM bands 850 900 1800 1900 MHz and operates at double or four times tra...

Page 63: ...PGSM_Rx GSM1800 GSM1900 DCS PCS_Tx EGSM Rx PGSM EGSM_Tx GSM900 VC1 GSM850 L L 22p C496 C426 2 7p Y1 Y2 100nH L409 NC7WV16P6X U403 A1 A2 GND VCC C499 100p 100p C498 10p C497 C424 2 7p L402 18nH C423 2 7p 5 6nH L403 1 GSM850_RX_OUT1 GSM850_RX_OUT2 2 3 GSM900_RX_OUT1 4 GSM900_RX_OUT2 14 VC1 VC2 13 17 ANT 10 ESD GND1 9 GND2 11 GND3 16 18 GND4 GND5 19 20 GND6 GSM1800_1900_TX 12 GSM1800_RX_OUT1 5 GSM180...

Page 64: ... high the PA collector voltage is regulated to 3 6V and the supply for the PA base bias can be adjusted via the VRAMP pin to optimize current drain for low or high power ranges In addition in 8PSK mode the first stage of the low band PA is bypassed to decrease gain but in high band the PA operates with all stages PIN Function Description 1 HB_RFIN RF input to the High band PA 2 BAND_SEL Logic low ...

Page 65: ...4 1 Main Sub PCB component placement 66 4 PCB layout 4 PCB layout Figure 35 Main PCB top Figure 36 Main PCB top placement Figure 37 Main PCB bottom Figure 38 Main PCB bottom placement ...

Page 66: ...4 PCB layout 67 Figure 39 Sub PCB top Figure 40 Sub PCB top placement Figure 41 Sub PCB bottom Figure 42 Sub PCB bottom placement ...

Page 67: ...e 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 5 2 Power on Trouble Check Points Battery Voltage Need to over 3 35V Power On Key detection PWRON signal Outputs of LDOs from PMIC 5 Trouble shooting Figure 43 Equipment setup ...

Page 68: ...nal Outputs of LDOs from PMIC Figure44 Power ON Schematic End key _RESET REMOTE END_KEY END KEY POWER ON KDR331V 3 1 2 D201 10K R223 0 R220 1 2 3 CN202 3 1 R225 NA Q201 2 2SC5585 R222 100K VBAT R218 0 R224 100K 1000p C233 R219 0 END_KEY RPWRON PWRON END_KEY KP_IN 5 KP_OUT 1 END_KEY Waveform 470K R205 R201 220K RTC_OUT PWRON ...

Page 69: ...ignal correct Replace main PCB Check the RPWRON replace D201 Check END key FPCB Or Replace it Check solder U205 or replace it Check B to B connector Check camera connector Or replace camera module Check solder U203 or replace it Check solder X401 U401 or replace it Yes Yes Yes Yes Yes No No No No Connect power supply to the DUT Vbat over 3 35V ...

Page 70: ...D2 6 PMB6812 U203 25 AUIN AUIP 2V72_IO C232 1u 4 7K R202 VBAT 2 2u C225 2 2u C231 VBAT 2 2u C216 VUSB_PU 1V5_CORE 2V85_SIM 2V65_BT 2V85_IO2 2V85_CARD VCHG C211 2 2u 100u C205 2 2u C227 VBAT C224 22u 22u C223 C208 2 2u VBAT 470K R205 2V65_ANA 2V85_RF 2 2u C207 2 2u C217 VBAT C228 2 2u 2V72_IO C206 2 2u 2 2u C226 C229 1V5_RF 2 2u R201 220K R211 82K L201 10uH 1V5_DSP 2 2K R214 C230 2 2u VBACKUP RTC_O...

Page 71: ...attery voltage Charging method CC CV Switch off voltage 3 35V Charger detect voltage about 4 0V Charging temperature ADC range ChCharging time 3h under 20 C small charging operation Charging current 500mA 20 C 60 C charging Cutoff current 100mA 60 C not charging operation small Low battery alarm charging operation Idle 3 62V Dedicated 3 50V ...

Page 72: ...inside charging IC Check Connection of TA check TA voltage 4 8V Charging Current Path component CHARGIING IC 100K R315 C313 VCHG 1u R318 100K VBUS_USB 1u C311 USB 2 7 USBON _CHG 4 5 _EN 3 _PPR R319 10K U301 ISL6299 10 BAT 1 CRDL GND 8 9 ICDL IMIN 6 11 PGND 1u C312 R312 10K USFB13L D301 2V72_IO 100K R311 VBAT R314 39K CHG_EN EOC ...

Page 73: ...ar 0 3V Re solder the CN305 Battery voltage is over 3 4V Charge is operating properly The TA can be broken Change other TA then retest Check solder U301 or replace it Replace it Waiting until battery Voltage goes up to 3 4V Yes Yes Yes Yes Yes No No No No No Battery thermistor value is about 68K Change the Battery retest No Yes ...

Page 74: ...INOUT_A1 1 2 INOUT_A2 INOUT_A3 100ohm R310 EVLC5S0250 VA310 2V72_IO 8 7 INOUT_B3 INOUT_B4 6 ICVE10184E150R101FR FL307 G1 5 G2 10 INOUT_A1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 INOUT_B2 6 7 8 9 22 23 24 25 26 27 28 29 3 30 31 32 33 34 4 5 1 10 11 12 13 14 15 16 17 18 19 2 20 21 CN304 C501 NA PG05DBTFC IF_MODE DIF_RD LCD_ID SPK_RCV_P SPK_RCV_N VIBRATOR_P DIF_VSYNC DIF_CS DIF_CD DIF_WR DIF_D ...

Page 75: ..._IO2 C305 FB301 1u C306 FL304 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 INOUT_B4 6 D G S Q302 SI1305 E3 2V8_CAM 6 7 8 9 14 15 16 17 18 19 2 20 21 22 23 24 3 4 5 G1 G2 G3 G4 1 10 11 12 13 INOUT_A1 INOUT_A2 2 3 INOUT_A3 INOUT_A4 4 INOUT_B1 9 8 INOUT_B2 INOUT_B3 7 6 INOUT_B4 CN302 FL301 5 G1 10 G2 1 1V5_CAM _CAM_IO_EN CIF_RESET CIF_PD CIF_VS CIF_HS SCL CI...

Page 76: ...Check Points 5 Trouble shooting 77 ...

Page 77: ...A 10 3 VDD1 16 VDD2 2 VOC CBYPASS 21 GND1 4 12 GND2 20 GND3 14 I2CSPI_SEL I2CSPI_VDD 7 13 ID_ENB 18 LHP3D1 LHP3D2 1 LIN 9 6 LOUT 15 LM4946SQX U206 4 7K R261 C264 1u BBP_SND_L BBP_SND_R SPK_N SPK_P BBP_SND_L HS_OUT_L BBP_SND_R HS_OUT_R SCL SDA MAIN SPEAKER RECEIVER PATH Control RCV_P N SPK_P N H SPK_RCV_SWITCH SPK_RCV_SEL L SPK_RCV_P N Links to C290 VBAT NA 1u C242 L203 27nH EVL5M02200 VA202 27p C2...

Page 78: ...5 Trouble shooting 79 ...

Page 79: ...ints Microphone hole Mic Bias signal come from MICROPHONE FB1 1 2 MIC500 OSF213 42DC 0 1u R506 0 C506 R501 1K R503 1K 0 1u C503 7p C547 10u C546 C502 NA R543 1K 0 R504 C508 NA VMICN MIC1_N VMICP MIC1_P MIC MIC Check solder related microphone path Waveform ...

Page 80: ...le shooting 81 START Make a phone call then C137 Mic Bias come from BBP about 2V Assemble Check mic Bias line VMICP Yes Yes No Check microphone sound hole Signal comes out from Microphone Replace microphone No ...

Page 81: ... board and vibrator module The soldering of socket VIBRATOR CIRCUIT 47K R301 R303 100ohm R304 1 5K VBAT R386 0 0 R302 2 3 6 4 1 5 Q301 EMZ2 R306 7 5K VBAT C302 4 7u VIBRATOR_P VIBRATOR_EN Check the driver IC Enable signal goes to high then vibration Check the contact is clear if there is some obstacles then remove them Q301 ...

Page 82: ...5 Trouble shooting 83 ...

Page 83: ...ected well Control IC is working properly VBAT 56 R534 R530 100K C530 1uF 1 A 2 C C531 1uF SSC SWTS1007 LD504 1 A 2 C R533 56 LD503 SSC SWTS1007 3 VIN VOUT 4 BH33FB1WHFV U502 6 BGND 2 GND NC 5 STBY 1 NA C542 C543 NA LGF_EN Check LGF_EN R530 Signal when Key backlight ON U502 LD503 LD504 ...

Page 84: ...ET is working Socket soldering Proper SIM is used 0 1u C512 C5 C6 5 C7 6 7 GND1 GND2 8 GND3 9 10 GND4 CN500 1 C1 2 C2 C3 3 4 R505 NA 2V85_SIM NA C535 NA C510 Q500 D G S SI1305 E3 10K R507 SIM_IO SIM_RST SIM_CLK _SIM_EN Check soldering all pin of socket CN500 PIN5 PIN6 PIN1 ...

Page 85: ...shooting 86 Pin 3 SIM_CLK START 6 pins are soldered well When _SIM_EN is low SIM_IO signal is ok Repair it Replace the damaged part Yes No No Check All of SIM card voltage KE770 support 1 8V 3V SIM only Assemble ...

Page 86: ...501 BH29FB1WHFV BGND 6 GND 2 5 NC 1 STBY VIN 3 4 VOUT VBAT C524 0 1u 0 R525 DAT3 2 GND1 9 GND2 10 GND3 11 12 GND4 4 VDD 6 VSS R519 100K S500 SCHB1A0202 ENSY0017701 5 CLK 3 CMD 7 DAT0 DAT1 8 DAT2 1 R527 470K C521 1uF NA R535 1uF C522 NA R518 R520 100K C523 1u VCARD 100K R510 R516 100K TF_DAT3 TFLASH_EN TF_DETECT TF_CLK TF_CMD TF_DAT0 TF_DAT1 TF_DAT2 U501 S500 ...

Page 87: ...5 Trouble shooting 88 ...

Page 88: ...PART TROUBLESHOOTING 5 12 1 RF Components U401 X401 FL401 U402 SW401 Table 1 RF Components REFERENCE PART Description U402 PAM Power Ampilifier Module X401 VCTCXO 26MHz FL401 FEM Front End Module U401 Transceiver SW401 Mobile Switch ...

Page 89: ...dBm setting Spectrum analyzer setting Oscilloscope setting STAR 2 Check VCTCXO X401 Circuit 1 Check PMIC RF voltage output 3 Check Control Signal VC1 VC2 5 Check 4 Check FEM Mobile SW 6 Check TX PAM Control Signal U203 X401 Redownload SW U402 U401 FL401 VC2 PCS_Rx L L L H L H L L L PGSM_Rx DCS PCS_Tx EGSM_Rx PGSM EGSM_Tx DCS_Rx VC1 L L L ...

Page 90: ...N VDDA 35 VDDAU 30 VDDB 17 VDDC 46 VDDCH 43 VDDPW 5 39 VDDRF VIB 13 VINT 21 45 26 AUON 28 29 AUOP BYP 31 9 FB GND 49 41 INTOUT 32 IREF LED 16 22 LRF3EN 4 ON RESETQ 48 23 SCL SDA 24 15 SLED1 14 SLED2 6 PMB6812 U203 25 AUIN AUIP 4 7K R202 VBAT 2 2u C225 2 2u C216 VUSB_PU 1V5_CORE 2V65_BT VCHG C211 2 2u 100u C205 2 2u C227 VBAT C224 22u 22u C223 C208 2 2u VBAT 470K R205 2V65_ANA 2V85_RF 2 2u C207 2 2...

Page 91: ...5 Trouble shooting 92 Checking Flow No No No Go to next page Yes Yes Replace U201 Check c226 RF 1 5V RF 2 85V No Yes Check C217 Vbat Changing the Board Yes Check C209 Check C208 RF 2 7V ...

Page 92: ...t Diagram C431 22p 2V7_VCXO X401 26MHz 2 GND OUT 3 4 VCC 1 VCONT 0 R413 C430 1u AFC Change the board Check Pin 3 Refer to Graph 26 MHz O K No VCTCXO Circuit is OK See next Page to check ANT SW Mobile SW Yes Check Pin 4 2 7V OK No Yes Changing X401 check C430 ok Yes No Re soldering R505 Figure 4 9 ...

Page 93: ... C498 10p C497 ANT 2 G1 G2 3 4 G3 WFL R SMT10 CN401 1 GSM850_RX_OUT1 GSM850_RX_OUT2 2 3 GSM900_RX_OUT1 4 GSM900_RX_OUT2 14 VC1 VC2 13 17 ANT 10 ESD GND1 9 GND2 11 GND3 16 18 GND4 GND5 19 20 GND6 GSM1800_1900_TX 12 GSM1800_RX_OUT1 5 GSM1800_RX_OUT2 6 7 GSM1900_RX_OUT1 GSM1900_RX_OUT2 8 15 GSM850_900_TX LSHS M085FE FL401 1000p C495 2V85_RF 0 R401 NA C402 ANT_SW1 ANT_SW2 VC2 PCS_Rx L L L H L H L L L ...

Page 94: ... Check SW401 Signal is OK Replace Mobile SW SW401 Yes No Yes Mobile SW FEM is OK See next page to check I Q Signals Check PMB8876 U103 Control Signal is No Yes Check Pin A1 A2 of U403 OK Replace FEM FL601 1 8 12 15 pin No Yes of FL401 OK ...

Page 95: ... 12 6 PAM Figure 4 12 Graph 4 8 Test Points PA_LEVEL C445 TXON_PA C443 Waveform Checking Flow Go to Next Step Similar Yes No Download S W Check PA_LEVEL TXON_PA Check if there is Any Major Differenc Refer to Graph 48 e or not ...

Page 96: ...5 Trouble shooting 97 5 12 7 TX IQ Figure 4 13 Graph 4 9 Test Points Waveform Circuit Diagram C404 NA NA C413 I IX Q QX ...

Page 97: ...Cable and PIF UNION to Phone interface Cable Power Supply or Battery IBM compatible PC supporting RS 232 with Windows 98 or newer If you are going to use battery the voltage of the battery should be over 3 7V for stable power supplying during S W download 6 Download S W upgrade 98 6 Download S W upgrade ...

Page 98: ...6 Download S W upgrade 99 6 2 Download program user guide Execute Flashtool program then below window will be appeared ...

Page 99: ...en the application is started first time the following screen appears Each section is described in the text below Click the check box to enable or disable file download This will open a normal file select box Select the wanted file ...

Page 100: ... 101 6 Download S W upgrade Click on the blue text to select the COM port ...

Page 101: ...6 Download S W upgrade 102 Will change the window as below ...

Page 102: ...6 Download S W upgrade 103 Click on the blue text to select the COM Port Click Start button to next step Click to Start COM4 Then remote power on the target phone ...

Page 103: ...6 Download S W upgrade 104 During download the screen will look something like this ...

Page 104: ...he download process click on the panel for the channel to be stopped To stop the download the panel must be clicked twice This is to avoid that the download is stopped accidentally Furthermore to avoid that the download is stopped on a mouse double click there must be at least 0 5 second between the two clicks If the panel is clicked only once the text Click again to stop will disappear and the do...

Page 105: ... 106 ...

Page 106: ... I2S2_TX B2 IRDA_RX IRDA_TX A2 IREF M16 KP_IN0 D2 KP_IN1 D1 D5 KP_IN2 F5 KP_IN3 KP_IN4 E3 KP_IN5 E2 E1 KP_IN6 D3 KP_OUT0 KP_OUT1 F4 KP_OUT2 C2 C1 KP_OUT3 M0 U17 U12 F26M F32K U13 FCDP_RB_N G2 K15 GUARD C3 I2C_SCL E4 I2C_SDA F19 I2S1_CLK0 I2S1_CLK1 G16 I2S1_RX G17 G15 I2S1_TX E18 I2S1_WA0 I2S2WA0 J19 I2S2WA1 H16 I2S2_CLK0 J18 I2S2_CLK1 H17 H19 I2S2_RX P3 EBU_CS3_N M2 EBU_RAS_N EBU_RD_N N3 U4 EBU_SD...

Page 107: ...D 27p VCHG CN202 C246 1u C263 R212 100K 120 R210 C211 2 2u R262 4 7K 0 068u 0 068u C265 LD201 C271 2V11_RTC LEWWH25LA 100u C205 3 1 R225 NA Q201 2 2 2u C227 2SC5585 R204 47mohm VUSB_PU R222 V 14 100K COM1 16 COM2 4 8 COM3 COM4 12 GND 6 2 IN1 2 10 IN3 4 NC1 1 5 NC2 NC3 9 13 NC4 15 NO1 3 NO2 NO3 7 11 NO4 17 PGND TP203 VBAT U207 ISL8499IRZ T VBAT C224 22u 22u C223 C208 2 2u 39p C204 C245 1u R260 100K...

Page 108: ...C342 NA 27p 27p COM2 GND 6 IN1 4 IN2 8 5 NC1 NC2 7 NO1 2 NO2 10 VCC 1 C314 U302 NLAS5223BMNR2G 3 COM1 9 R321 0 VA304 1u C312 0 GND301 R339 100p C320 TP301 VBAT R322 1M 27p C317 1u C509 R396 0 R312 10K 3 4 INOUT_A4 9 INOUT_B1 INOUT_B2 8 7 INOUT_B3 INOUT_B4 6 2V72_IO R316 47 ICVE10184E150R101FR FL305 G1 5 G2 10 INOUT_A1 1 2 INOUT_A2 INOUT_A3 2 2nH L304 100ohm R310 TP308 2V72_IO R419 NA 100p C321 1u ...

Page 109: ..._RF C442 0 R410 Y1 Y2 100nH L409 NC7WV16P6X U403 A1 A2 GND VCC C431 22p GND6 GND7 17 GND8 19 GND9 21 HB_RFIN 1 18 HB_RFOUT LB_RFIN 7 12 LB_RFOUT 10 NC1 NC2 15 20 NC3 TX_EN 3 4 VBATT VMODE 5 6 VRAMP U402 RF3158 2 BAND_SEL 8 GND1 22 GND10 GND11 23 9 GND2 GND3 11 GND4 13 GND5 14 16 0 1uF C427 0 1uF 2V85_RF C411 R417 1K C499 100p 100p C498 10p C497 C407 1u C433 0 1uF C441 100p 2V7_VCXO 18p C507 C406 1...

Page 110: ...OUT_B3 INOUT_B4 6 NA FL501 G1 5 SHAP R527 470K VBAT OK 0 R524 T506 EVL14K02200 VA503 DOWN 1 2 C521 MIC500 OSF213 42DC EVL14K02200 1uF VA508 VA504 EVL14K02200 NA R535 1uF C522 NA R518 LEFT T508 C549 NA NA C548 0 1u R506 0 C506 R520 100K 47p C545 R501 1K MENU R503 1K CLR EVL14K02200 VA510 VA502 EVL14K02200 SEND T500 VA507 0 1u EVL14K02200 C503 T504 2V85_SIM 56 R534 NA C523 1u 2V85_SIM C535 NA C510 7...

Page 111: ... 112 8 PCB LAYOUT ...

Page 112: ... 113 8 PCB LAYOUT ...

Page 113: ... 114 8 PCB LAYOUT ...

Page 114: ... 115 8 PCB LAYOUT ...

Page 115: ... 116 8 PCB LAYOUT ...

Page 116: ...9 RF Calibration 117 9 1 Test Equipment Setup 9 2 Calibration Steps 9 2 1 Turn on the Phone 9 2 2 Execute HK_24 exe 9 RF Calibration 4 00 V 0 000 A ...

Page 117: ...9 RF Calibration 118 9 2 3 Click SETTING Menu 9 2 4 Setup Ezlooks menu such as the following figure ...

Page 118: ... menu such as the following figure 9 2 6 Setup Logic operation such as the following figure Adjust the number of times PWR Power Supply CELL Call Test Equipment Operation Mode 1 By Pass not control by GPIB 2 Normal control by GPIB Setup UART Port ...

Page 119: ...9 RF Calibration 120 9 2 7 Select MODEL 9 2 8 Click START for RF calibration 9 2 9 RF Calibration finishes ...

Page 120: ...10 Stand alone Test 121 10 Stand alone Test 10 1 Test Program Setting 1 Set COM Port 2 Check PC Baud rate 3 Confirm EEPROM Delta file prefix name ...

Page 121: ...10 Stand alone Test 122 4 Click Update Info for communicating Phone and Test Program ...

Page 122: ...tand alone Test 123 5 For the purpose of the Standalone Test Change the Phone to ptest m ode and then Click the Reset bar 6 Select Non signaling in the Quick Bar menu Then Standalone Test setup is finished ...

Page 123: ...KEYPAD ON OFF 2 2 LCD 2 2 1 LCD AUTO 2 2 2 LCD COLOR 2 2 3 LCD QUALITY 2 3 CAMERA 2 3 1 PREVIEW 2 3 2 VIDEO 2 3 3 SETTING 2 4 FONT 2 5 ALERT 2 5 1 VIBRATOR 2 5 2 RING 2 5 3 EFFECT SOUND 2 5 4 IMELODY SOUND 2 5 5 EMS SOUND 2 6 SERIAL PORT 2 6 1 MODEM 2 6 2 IrDA 2 7 BATTERY INFO1 2 8 AUDIO GAIN 2 6 1 RECEIVER 2 6 2 EAR MIC 2 6 3 LOUD SPEAKER 2 6 4 HANDSFREE 2 6 5 DEFAULT VALUE 2 6 6 DAI TEST 2 6 6 L...

Page 124: ...4 5 56 6 7 10 12 13 14 15 41 18 57 20 23 29 30 33 32 31 27 26 28 25 22 55 54 53 52 44 54 51 49 47 46 43 50 48 42 38 37 36 35 34 17 40 24 19 39 21 16 9 11 8 12 EXPLODED VIEW REPLACEMENT PART LIST 12 1 EXPLODED VIEW ...

Page 125: ... 126 ...

Page 126: ...0 PAD MPBZ0174501 COMPLEX empty Without Color 56 5 MTAD00 TAPE WINDOW MTAD0060401 COMPLEX empty Without Color 3 4 ACGM00 COVER ASSY REAR ACGM0082802 Silver 5 MBJN00 BUTTON VOLUME MBJN0012501 COMPLEX empty Black 25 5 MBJZ00 BUTTON MBJZ0009702 COMPLEX empty Silver 24 5 MCCC00 CAP EARPHONE JACK MCCC0041002 COMPLEX empty Silver 28 5 MCJN00 COVER REAR MCJN0060802 MOLD PC LEXAN EXL4419 Silver 23 5 MFBD0...

Page 127: ... mm MSWR3 BK N NYLOK Without Color 4 MBJA00 BUTTON DIAL MBJA0022702 COMPLEX empty 0 12 Shining Silver 8 4 MIDZ00 INSULATOR MIDZ0128001 COMPLEX empty Without Color 4 MPBJ00 PAD MOTOR MPBJ0037901 COMPLEX empty Without Color 15 4 MTAB00 TAPE PROTECTION MTAB0146601 COMPLEX empty Without Color 4 MTAC00 TAPE SHIELD MTAC0045001 COMPLEX empty Without Color 4 MTAC01 TAPE SHIELD MTAC0049101 COMPLEX empty Wi...

Page 128: ...0V K X5R HD 1005 R TP 7 C512 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 7 C520 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C521 CAP CHIP MAKER ECZH0003202 1 uF 6 3V Z Y5V HD 1005 R TP 7 C522 CAP CHIP MAKER ECZH0003202 1 uF 6 3V Z Y5V HD 1005 R TP 7 C523 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C524 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD ...

Page 129: ... J 1005 R TP 7 R513 RES CHIP MAKER ERHZ0000401 0 ohm 1 16W J 1005 R TP 7 R514 RES CHIP MAKER ERHZ0000401 0 ohm 1 16W J 1005 R TP 7 R515 RES CHIP MAKER ERHZ0000401 0 ohm 1 16W J 1005 R TP 7 R516 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 7 R519 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 7 R520 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 7 R521 RES CHIP MAKER ERHZ0000...

Page 130: ... SJMY0008203 3 V 1 A 10 2 0T 12mm 4 SPKY00 PCB SIDEKEY SPKY0041201 POLYI 0 2 mm DOUBLE KE770 VOLUM_CAMERA SIDEKEY FPCB 4 SUSY00 SPEAKER SUSY0024101 ASSY 8 ohm 88 dB mm 750 18 10 3T WIRE 4 SVLC00 LCD MODULE SVLM0022501 MAIN 176 220 1 76 34 45 1 8 262k TFT TM R69410 Renesas NTSC 60 4 SWCC00 CABLE COAXIAL SWCC0004001 86 mm 1 LINE empty empty empty BLACK empty 3 ACGN00 COVER ASSY CAMERA ACGN0006302 Si...

Page 131: ...2 uF 6 3V M X5R TC 1005 R TP 6 C207 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C208 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C209 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C210 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C211 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C212 CAP CERAMIC CHIP ECCH0000198 ...

Page 132: ...0 uF 6 3V M L_ESR 3216 R TP empty empty empty 3 2X1 6X1MM empty empty empty 6 C270 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C271 CAP CHIP MAKER ECZH0003121 68 nF 10V K X7R HD 1005 R TP 6 C272 CAP CHIP MAKER ECZH0001211 220 nF 10V Z Y5V HD 1005 R TP 6 C314 CAP CHIP MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 6 C315 CAP CHIP MAKER ECZH0004402 0 1 uF 16V Z NP0 TC 1005 R TP 6 C...

Page 133: ...CERAMIC CHIP ECCH0000184 2 7 pF 50V C NP0 TC 1005 R TP 6 C422 CAP CERAMIC CHIP ECCH0000184 2 7 pF 50V C NP0 TC 1005 R TP 6 C423 CAP CERAMIC CHIP ECCH0000184 2 7 pF 50V C NP0 TC 1005 R TP 6 C424 CAP CERAMIC CHIP ECCH0000184 2 7 pF 50V C NP0 TC 1005 R TP 6 C425 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C426 CAP CERAMIC CHIP ECCH0000184 2 7 pF 50V C NP0 TC 1005 R TP 6 C427 CAP CHIP ...

Page 134: ...PB FREE 6 FB203 FILTER BEAD CHIP SFBH0001003 220 ohm 2012 6 FB302 FILTER BEAD CHIP SFBH0007102 10 ohm 1005 Ferrite Bead 6 FB303 FILTER BEAD CHIP SFBH0007102 10 ohm 1005 Ferrite Bead 6 FB304 FILTER BEAD CHIP SFBH0007102 10 ohm 1005 Ferrite Bead 6 FL305 FILTER EMI POWER SFEY0010501 SMD SMD 18 V 4ch EMI_ESD Filter 100Ohm 15pF Pb free 6 FL306 FILTER EMI POWER SFEY0010501 SMD SMD 18 V 4ch EMI_ESD Filte...

Page 135: ...RHZ0000485 4700 ohm 1 16W J 1005 R TP 6 R308 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R309 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R310 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R313 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R316 RES CHIP MAKER ERHZ0000483 47 ohm 1 16W J 1005 R TP 6 R317 RES CHIP MAKER ERHZ0000483 47 ohm 1 16W J 1005 R TP 6 R321 R...

Page 136: ...RAME SHIELD MFEA0012801 PRESS STS 0 2 Without Color 35 6 U201 IC EUSY0286901 SOT23 5 5 PIN R TP 2 5V Sense voltage max current monitor 6 U203 IC EUSY0269101 PG VQFN 48 48 PIN R TP PMIC Pb Free 6 U206 IC EUSY0309801 Output capless audio subsystem with 3D 24 PIN R TP NS subsystem audio amp 6 U208 IC EUSY0300101 WQFN 10 PIN R TP Small package Dual SPDT analog Switch PB Free 6 U302 IC EUSY0300101 WQFN...

Page 137: ...4 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C115 CAP CHIP MAKER ECZH0004402 0 1 uF 16V Z NP0 TC 1005 R TP 6 C116 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C117 CAP CHIP MAKER ECZH0004402 0 1 uF 16V Z NP0 TC 1005 R TP 6 C118 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C119 CAP CHIP MAKER ECZH0004402 0 1 uF 16V Z NP0 TC 1005 R TP 6 C120 CAP CERAMIC...

Page 138: ...NP0 TC 1005 R TP 6 C301 CAP CERAMIC CHIP ECCH0000112 15 pF 50V J NP0 TC 1005 R TP 6 C302 CAP CERAMIC CHIP ECCH0006201 4 7 uF 6 3V K X5R TC 1608 R TP 6 C303 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C305 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C306 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C307 CAP CHIP MAKER ECZH0000813 100 pF 50V J NP0 TC 10...

Page 139: ...LOW FREQUENCY 6 Q202 TR BJT NPN EQBN0007001 SC 70 1 W R TP Pb free 6 Q301 TR BJT ARRAY EQBA0002701 EMT6 150 mW R TP NPN PNP 150 mA 6 Q302 TR FET P CHANNEL EQFP0004501 SOT 323 29 W 1 8 V 86 A R TP P Chanel MOSFET Pb free 6 R101 RES CHIP MAKER ERHZ0000488 4 7 ohm 1 16W J 1005 R TP 6 R103 RES CHIP ERHY0000166 390 Kohm 1 16W F 1005 R TP 6 R104 RES CHIP MAKER ERHZ0000204 100 Kohm 1 16W F 1005 R TP 6 R1...

Page 140: ...TP 6 R229 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R230 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R231 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R233 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R271 RES CHIP MAKER ERHZ0000401 0 ohm 1 16W J 1005 R TP 6 R301 RES CHIP MAKER ERHZ0000486 47 Kohm 1 16W J 1005 R TP 6 R302 RES CHIP MAKER ERHZ0000401 0 ohm...

Page 141: ... WCSP 0 23mm Large Bump 5 PIN R TP Single 2 input positive AND gate Pb Free 6 U103 IC EUSY0274601 BGA 293 PIN R TP EDGE BASE BAND S GOLD2 6 U202 IC EUSY0238302 TDFN44 16 16 PIN R TP 4LED Flash up to 250mA Charge pump PBFREE 6 U205 IC EUSY0102802 Micropak 8 PIN R TP Daul 2 input AND gate 6 U207 IC EUSY0251101 QFN 16 PIN R TP Ultra Low Ron Dual DPDT Analog switch Pb Free 6 U209 DIODE TVS EDTY0006501...

Page 142: ...BATTERY PACK LI ION SBPL0085603 3 7 V 800 mAh 1 CELL PRISMATIC CMW PJT BATT Innerpack Europe Label Pb Free 3 7 800 0 2C PRISMATIC 43x34x46 ALLTEL SILVER Innerpack CMW Bar Without Color 3 SGDY00 DATA CABLE SGDY0010901 LG US03K 18pin USB DataCable 3 SGEY00 EAR PHONE EAR MIKE SET SGEY0005529 3 SSAD00 ADAPTOR AC DC SSAD0021304 100 240V 5060 Hz 4 8 V 0 9 A CB CE GOST 18pin plug ADAPTOR AC DC SSAD002130...

Page 143: ...Note ...

Page 144: ...Note ...

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LG KE 770, Service Manual

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