Page 1 Internal Use Only Service Manual KF700 Date: May, 2008 / Issue 1.1...
Page 2: Table Of Contents
4.9 Main LCD trouble ........97 4.10 Bluetooth trouble........100 4.11 Touch Screen trouble......102 4.12 RF Component........104 4.13 SIGNAL PATH ........105 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...
Page 4: Introduction
The user may not make any changes and/or repairs expect as specifically noted in this manual. Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 5 -...
Page 5: Only For Training And Service Purposes
• When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 6 - Only for training and service purposes...
Page 6: Performance
2.2 Main Parts : GSM Solution Item Part Name Comment Digital Baseband MSM6280(Qualcomm) Analog Baseband MSM6280(Qualcomm) RF Chip RTR6275(Qualcomm) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...
Page 7: Hw Features
Main : Internal Fixed Type System connector 18 Pin Ear Phone Jack 18pin, 4 Pole, Stereo PC synchronization LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 8 - Only for training and service purposes...
Page 8: Only For Training And Service Purposes
V1.2, A2DP Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash (External Memory) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 - Only for training and service purposes...
Page 9: Hw Spec
3000kHz-6000kHz : <-65dBc(-46dBm) 6000kHz < : < -71dBc(-46dBm) 1800-3000kHz :< -65dBc(-51dBm) 6000kHz < : < -73dBc(-51dBm) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...
Page 10: Only For Training And Service Purposes
1600kHz : -98dBm / -96dBm (2.439%) Speech channels AM Suppression -98dBm/-96dBm (2.439%) - GSM : -31dBm - DCS : -29dBm Timing Advance 0.5T Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes...
Page 11: Only For Training And Service Purposes
< 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout ≥ -20 dBm LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...
Page 12: Only For Training And Service Purposes
Loop Power control in uplink Adjust output(TPC command) +0.5/1.5 +1/3 +1.5/4 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 -0.5/-1.5 -1/-3 -1.5/-4 group(10equal command group) +8/+12 +16/+24 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...
Page 13: Technical Brief
Module [Fig. 3.1] Block diagram of RF part A generic, high-level functional block diagram of KF700 is shown in [Fig. 3.1]. One antenna collects base station forward link signals and radiates handset reverse link signals. The antenna connects with receive and transmit paths through a FEM(Front End Module).
Page 14: Only For Training And Service Purposes
2. The amplitude-modulated (AM) component is applied to the ramping control pin of Polar power amplifier from a DAC within the MSM KF700 power supply voltages are managed and regulated by the PM6650 Power Management IC. This versatile device integrates all wireless handset power management, general housekeeping, and user interface support functions into a single mixed signal IC.
Page 15: Gsm Mode
(EGSM-900, DCS-1800 and PCS-1900). The antenna switch module allows multiple operating bands and modes to share the same antenna. In KF700, a common antenna connects to one of six paths: 1) UMTS-2100 Rx/Tx, 2) EGSM-900 Rx, 3) EGSM-900 Tx, 4) DCS-1800 Rx, and 5) DCS-1800, PCS-1900 Tx(High Band Tx’s share the same path), 6) PCS-1900 Rx.
Page 16: Only For Training And Service Purposes
DC offset corrections. The filter outputs are buffered and passed on to the MSM6280 IC for further processing (an interface shared with the RFR6275 UMTS receiver outputs). [Fig. 3.2] RTR6275 RX feature Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 17 -...
Page 17: Only For Training And Service Purposes
PA and appear in the GSM Rx band. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 18 - Only for training and service purposes...
Page 18: Umts Mode
RF. This requires FLO to equal FRF, and the RTR6275 IC design achieves this without allowing FVCO to equal FRF. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 19: Only For Training And Service Purposes
3. TECHNICAL BRIEF [Fig. 3.4] RTR6275 IC functional block diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...
Page 20: Lo Generation And Distribution Circuits
With the integrated fractional-N PLL synthesizers, the RTR6275 has the advantages of more flexible loop bandwidth control, fast lock time, and low-integrated phase error Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 -...
Page 21: Off-Chip Rf Components
MSM side, and isolate from digital logic and clock traces with ground on both sides, plus ground above and below if routed on internal layers. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...
Page 22: Only For Training And Service Purposes
- Control drivers for two external pass transistors and one external battery MOSFET - MOSFET is optional - Voltage, current, and power control loops - Automated recovery from sudden momentary power loss Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 - Only for training and service purposes...
Page 23: Only For Training And Service Purposes
- Speaker driver with programmable gain, turn-on time, and muting; differential operation (drives external 8 Ω speakers with volume controlled 500 mW) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...
Page 24: Only For Training And Service Purposes
■ Highly integrated functionality in a small package - 84-pin BCCS with a large center slug for electrical ground, mechanical stability, and thermal relief Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 -...
Page 25: Only For Training And Service Purposes
3. TECHNICAL BRIEF [Fig. 3.6] PM6650 Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...
Page 26: Only For Training And Service Purposes
C139 GSM_TX R112 R113 8 dB L111 GSM_PA_BAND GSM_PA_EN C145 C146 1000p 1000p [Fig. 3.7] GSM PAM Schematic Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 - Only for training and service purposes...
Page 27: Only For Training And Service Purposes
Insertion loss, this component is also in the receive and transmit paths ; In the KF700 typical losses : UMTS2100_ Tx = 1.5 dB, UMTS2100_ Rx = 1.8 dB Out-of-band rejection or attenuation, the duplexer provides input selectivity for the receiver, output filtering for the transmitter, and isolation between the two.
Page 28: Only For Training And Service Purposes
DC Input level Operating temperature deg. C Storage temperature deg. C [Table 3.3] UMTS Rx SAW Filter Specification Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...
Page 29: Only For Training And Service Purposes
XTA L _IN TCX O LDO Part Supply Part VREG_MSMP VDD_MSM GND Part VDD_A VDD_BAT [Fig. 3.8] Bluetooth system architecture LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...
Page 30: Only For Training And Service Purposes
VREG_MSMP_2.7V TP100 C169 FM_I2C_SCL 0.1u TP101 FM_I2C_SDA TP102 SLEEP_CLK [Fig. 3.9] FM Radio system architecture in the KF700 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...
Page 31: Digital Baseband (Dbb/Msm6280)
■ Advanced 14 x 14 mm, 0.5 mm pitch, 409-pin lead-free CSP packaging technology ■ SD/SDIO hardware support LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...
Page 32: Only For Training And Service Purposes
3. TECHNICAL BRIEF [Fig. 3.10] Simplified Block Diagram of Baseband Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...
Page 33: Subsystem(Msm6280)
■ PS data rate - 384 kbps DL / 384 kbps UL ■ CS data rate - 64 kbps DL / 64 kbps UL ■ AMR (all rates) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...
Page 34: Only For Training And Service Purposes
DPCH. ■ Supports TFC selection limitation on the UL factoring in the transmissions on the HS-DPCCH as required in TS 25.133. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...
Page 35: Only For Training And Service Purposes
■ PBCCH support ■ 1phase/2 phase access procedures ■ Link adaptation and IR ■ NACC, extended UL TBF. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...
Page 36: Only For Training And Service Purposes
- 2 chip selects supported for NAND Flash ❏ Boot from NAND ❏ Low-power SDRAM (LP-SDRAM) interface ■ Internal watchdog and sleep timers Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 - Only for training and service purposes...
Page 37: Only For Training And Service Purposes
■ Integrated stereo wideband Codec for music/digital clips ■ CMX ■ Video Codecs supported: MPEG-4, H.263, H.264, Windows Media® v9 and RealNetworks® v10 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...
Page 38: Only For Training And Service Purposes
■ Scalable Vector Graphics (SVG- Tiny 1.1 + SVG Tiny 1.2) ■ MLZ decoder ■ Integrated PNG/SAF A.T. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 - Only for training and service purposes...
Page 39: Only For Training And Service Purposes
3. TECHNICAL BRIEF [Table 3.4] Summary of MSM6280 device features LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...
Page 40: Only For Training And Service Purposes
ANSI/IEEE 1149.1A-1993 feature list. The JTAG interface can be used to test digital interconnects between devices within the mobile station during manufacture. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 41: Only For Training And Service Purposes
The USB controller acts as a USB peripheral communicating with the USB host. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...
Page 42: Power Block
Bus Interface (SSBI)supplemented by an Interrupt Manager for time-critical information. Another dedicated IC Interface circuit monitors multiple trigger events and controls the power-on sequence. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 -...
Page 43: Only For Training And Service Purposes
3. TECHNICAL BRIEF [Fig. 3.11] PM6650 Functional Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...
Page 44: Only For Training And Service Purposes
These pins are connected to the Source (or emitter) and Drain (or collector) contacts of the pass transistor respectively. KF700 Battery Bar Display(Stand By Condition) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 45 -...
Page 45: Only For Training And Service Purposes
VDD to pin (VBAT). Trickle charging can be used for lithium-ion and nickel-based batteries, with its performance specified below (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...
Page 46: Only For Training And Service Purposes
■ Low battery POP UP : Idle - 3.37V, Dedicated(GSM/WCDMA) - 3.37V ■ Low battery alarm interval : Idle - 3 min, Dedicated - 1min ■ Cut-off voltage : 3.20V Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 -...
Page 47: External Memory Interface
EBI2 was targeted towards supporting slower asynchronous devices such as LCD, NAND flash, SRAM, etc. In addition, MSM6280 provide SD bus interface. KF700 supports 512MByte free user memory using SD interface. ❏ EBI1 Features...
Page 48: Only For Training And Service Purposes
3. TECHNICAL BRIEF [Fig. 3.12] Simplified Block Diagram of Memory Interface Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...
Page 49: H/W Sub System
BT_SBDT_GPIO22 BT_SBDT BT_TX_RX_N_GPIO21 BT_TX_RX_N BT_DATA_GPIO20 BT_DATA MDDIC_DATP MDDIC_DATN MDDIC_STBP MDDIC_STBN [Fig. 3.13] Schematic of RF Interface of MSM6280 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...
Page 50: Only For Training And Service Purposes
[Fig. 3.14] SIM Interface UART Interface UART signals are connected to MSM GPIO through IO connector with 115200 bps speed. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
Page 51: Only For Training And Service Purposes
USB_D+ USB_D_P 4.7u USB_SE0 USB_SE0 USB_D- USB_D_M GP1_DRV_N(MPP7) [Fig. 3.15] Schematic of USB block(MSM6280 Side & PM6650 Side) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...
Page 52: Only For Training And Service Purposes
Headset remote key detection HKADC4 PCB_Rev_ADC PCB Version Check HKADC5 Battery_THERM Battery Temperature Check [Table 3.8] HKADC channel table Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...
Page 53: Only For Training And Service Purposes
R104 KEY_ROW(3) KEY_COL(0) HOT4 HOT3 KEY_COL(1) KEY_COL(2) KEY_COL(3) 100ohm R105 KEY_COL(4) KEY MAP [Fig. 3.17] Main Keypad Circuit LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...
Page 54: Only For Training And Service Purposes
3. TECHNICAL BRIEF 3.10.5 Camera Interface KF700 Installed a 3M Pixel and 0.3Mega Camera. Below [Fig. 3.18] shows the camera board to board connector and camera I/F signal. VREG_CAM_1.8V VREG_CAM_2.8V VREG_3M_AF_2.8V FB502 BLM15AG100PN1 CN500 C512 C513 C514 CLKN ISP_SENS_MCLK 0.1u 0.1u...
Page 55: Only For Training And Service Purposes
I: Input O: Output I/O: In/Out P: Power G: Ground [Table 3.10] Interface between MEGA Camera Module and MAIN PCB (in camera module) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...
Page 56: Only For Training And Service Purposes
Camera I/O Power VREG_CAM_2.8V Camera I/O Power [Table 3.11] Interface between VGA Camera Module and FPCB (in camera module) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...
Page 57: Only For Training And Service Purposes
3. TECHNICAL BRIEF 3.10.6 LCD Module (IM300SBN1A : LG Innotek) - The IM300SBN1A model is a Color TFT Main supplied by LG Innotek. This LCD Module has a 3.0 inch diagonally measured active display area with 240(RGB)X480 resolution. each pixel is divided into Red, Green and Blue sub-pixels and dots which are arranged in vertical stripes.
Page 58: Only For Training And Service Purposes
FL303 ICVE10184E150R500FR EBI2_DATA(3) INOUT_A1 INOUT_B1 LCD_DATA(3) EBI2_DATA(2) LCD_DATA(2) INOUT_A2 INOUT_B2 EBI2_DATA(1) LCD_DATA(1) INOUT_A3 INOUT_B3 EBI2_DATA(0) LCD_DATA(0) INOUT_A4 INOUT_B4 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 59 - Only for training and service purposes...
Page 59: Only For Training And Service Purposes
[Fig. 3.20] Audio Interface Detailed Diagram(MSM6280) # Image Signal Processor Chip LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...
Page 60: Feature List
❏ I2C/SPI slave interface. ❏ 16 GPIOs ❏ 4 Channel controllable PWM. ❏ Embedded analog core (Regulator, PLL) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...
Page 61: Only For Training And Service Purposes
MV9319 is comprised of sensor interface, serial interface and image signal processor (ISP) [Fig. 3.21] shows system interface diagram of camera module with MV9319. [Fig. 3.21] Mega Pixel Sensor Module LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
Page 62: Only For Training And Service Purposes
❏ Either low-speed (1.5Mbps) or full-speed (12Mbps) as a host ❏ In peripheral mode, PM6650-2 supports charging from VBUS ❏ MSM6280 with PM6650-2 also supports analog car kit mode (CEA-936-A) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 -...
Page 63: Only For Training And Service Purposes
❏ Clock gating for power saving (and a power-saving option to always turn the clock off when bus is idle) ❏ Flow control option to prevent overflow and underflow ❏ MCLK output up to 25 MHz LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...
Page 64: Only For Training And Service Purposes
3. TECHNICAL BRIEF MICROSD_CMD MMC_CMD_GPIO30 MICROSD_DATA(0) MMC_DATA_SDCC_DAT0_GPIO32 MICROSD_CLK MMC_CLK_SDCC_CLK_GPIO31 SDCC_DAT1_GPIO99 MICROSD_DATA(1) SDCC_DAT2_GPIO100 MICROSD_DATA(2) SDCC_DAT3_GPIO101 MICROSD_DATA(3) 3.11.12 Power Domain Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...
Page 65: Touch Screen Interface
[Fig. 3.23] Touch Screen Interface VREG_TOUCH_2.8V C102 C103 0.1u U100 TSC2007IYZGR TOUCH_I2C_SDA VDD_REF TOUCH_PENIRQ_N PENIRQ- TOUCH_I2C_SCL C104 0.1u TOUCH SCREEN DRIVER IC LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...
Page 66: Trouble Shooting
Press PWR key Follow the LED trouble Keypad LED on? shoot Follow the LCD trouble LCD display OK? shoot Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...
Page 67 C439 C440 C441 0.1u 1000p C442 C443 VREG_MSME_1.8V(C442) VREG_MSMC_1.2V 1000p L403 4.7uH R416 C444 C445 VREG_MSMC_1.2V(C445) 4.7u 1000p LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...
Page 68: Usb Trouble
USB connected to KF700 USB_VBUS(VA404) go to 5V USB_D+(C434) go to 3.3V → USB_DATA is triggered USB work Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 69 - Only for training and service purposes...
Page 69: Sim Detect Trouble
VREG_USIM_3.0V(C436 of PM6650) go to 3.0V → USIM clock, reset and data triggered → USIM IF work (Schematic and place are refer to SIM technical brief) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...
Page 70: Key Sense Trouble (Keypad)
Corresponding ROW(x) and COL(x) go to 0V → → Scan pulse( Col => Row ) MSM sense what key pressed. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...
Page 71: Only For Training And Service Purposes
KEY_COL(0) HOT4 HOT3 KEY_COL(1) KEY_COL(2) KEY_COL(3) 100ohm R105 KEY_COL(4) [Fig. 4.1] Schematic of key sense part (KEY FPCB) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...
Page 72: Only For Training And Service Purposes
4. TROUBLE SHOOTING VREG_MSMP_2.7V KEY_ROW(0) KEY_COL(4) SIDE KEY [Fig. 4.2] Schematic of key sense part (SUB FPCB) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...
Page 73: Keypad Backlight Trouble
Key pressing → PM6650 KYPD_LED_EN go to Low → LED On (Key Pad LED controlled by PM6650) +VPWR LD100 LD101 KYPD_LED_EN [Fig. 4.3] Schematic of keypad backlight part LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...
Page 74: Micro Sd Trouble
Micro SD is worked as below : → → Micro SD insertion ßú MICROSD_DETECT(C317) goes to low VREG_MMC_3.0V is over 2.85V go working Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...
Page 75: Audio Trouble
CN300(Main PCB to → → LCD FPCB connector) CN102(LCD FPCB to Main PCB Connector) OUT100, OUT101(Receiver → PAD) Receiver LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...
Page 77: Only For Training And Service Purposes
VGA_CAM_RESET_N MOTOR- MOTOR+ MOTOR- MLED1 MLED2 MLED1 MLED3 MLED2 MLED4 MLED3 MLED5 MLED4 MLED6 MLED5 WLED_PWR MLED6 WLED_PWR LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...
Page 78: Only For Training And Service Purposes
→ → MSM6280 HPH_R, HPH_L C416,C417 R401,R402 FL400(EMI Filter) FB402, FB403 #4, #5 pin of CN400 headset Jack Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...
Page 79: Only For Training And Service Purposes
4. TROUBLE SHOOTING [Fig. 4.4] Schematic of voice path LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...
Page 80: Only For Training And Service Purposes
270nH CN400 FM_ANT FB401 FB402 C420 1800 FB403 1800 USB+_RINT USB-_RADC EAR_SENSE_N VBATT RMT_PWR_ON_N USB_VBUS UART_TX UART_RX rev.H Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...
Page 81: Only For Training And Service Purposes
CN300(Main PCB to LCD FPCB connector) → → CN102(LCD FPCB to Main PCB Connector) OUT100, OUT101(SPK PAD) Speaker LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...
Page 82: Only For Training And Service Purposes
LINE_OP AA17 HPH_R HPH_R HPH_L HPH_L R204 12ohm AE18 EAR1ON RCV- AF18 R205 12ohm EAR1OP RCV+ MICBIAS MICBIAS Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...
Page 84: Only For Training And Service Purposes
Main Microphone path as below: → → → → C105,C106 CN100(key PCB to Main PCB) CN302(Main to Key PCB) MSM internal CODEC Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...
Page 85: Only For Training And Service Purposes
MIC2N 0.1u AF22 C212 MIC2P AF20 MIC1N MIC1N AE20 MIC1P MIC1P AA20 CCOMP MAIN PCB TO KEY PCB LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...
Page 87: Only For Training And Service Purposes
C420 FB403 1800 L200 100nH Place near MSM C200 0.1u C203 FM_AUDIO_L FM_AUDIO_R C210 C214 0.1u C213 47p LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
Page 90: Camera Trouble
Camera control signals are generated by ISP (Image signal process Chip) and directly connected with ISP. KF700 has two cameras. The one is a 3 Mega Camera, the other is VGA camera. Copyright © 2008 LG Electronics. Inc. All right reserved.
Page 91: Only For Training And Service Purposes
4. TROUBLE SHOOTING FB504 (VREG_ISP_2.8V) R511 (CAM_MCLK) FB503 (VREG_CAM_2.8V) D500 (XSHUTDOWN) R512 (CAM_PCLK) FB505 (VREG_CAM_1.8V) D501 (3M_CAM_RESET_N) CN500 19PIN (ISP_SENS_MCLK) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...
Page 93: Only For Training And Service Purposes
FB504 VREG_ISP_2.8V R516 R517 (VREG_ISP_2.8V) 4.3K 4.3K MSTEK ISP [Fig. 4.5] 3M CAM CONNECTOR (T = 0.9 SOCKET) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...
Page 95: Only For Training And Service Purposes
TOUCH_I2C_SCL MLED6 TOUCH_I2C_SDA WLED_PWR VA300 (VGA_CAM_RESET_N) MAIN PCB TO LCD FPCB [Fig. 4.6] Schematic of VGA camera part LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...
Page 96: Main Lcd Trouble
Main LCD control signals are generated by MSM6280. Those signal’s path are : → → MSM6280 64-pin connector(CN300 in Main PCB) 40-pin connector (in LCD Module) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
Page 98: Only For Training And Service Purposes
LCD_CS_N EBI2_ADDR(11) EBI2_ADDR(11) MAIN PCB TO LCD FPCB EBI2_WE_N EBI2_WE_N VA304 (LCD_RESET_N) [Fig. 4.7] Schematic of LCD part Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 99 - Only for training and service purposes...
Page 99: Bluetooth Trouble
TCXO_PM 1000p 100K 1000p C147 C148 RTR6275_TCXO TCXO_BT 0.01u 1000p U102 TC7SH04FS [Fig. 4.8] Schematic of Bluetooth Interface LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...
Page 100: Only For Training And Service Purposes
5. Measure the power of full channel after hopping mode is selected to ‘ON’ 6. You can select wanted test cases after getting an optimized power Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 -...
Page 101: Touch Screen Trouble
I2C is connected A finger is → → took off from the Screen TOUCH_PENIRQ_N is high I2C is not connected. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...
Page 102: Only For Training And Service Purposes
EBI2_ADDR(11) LCD_CS_N LCD_VSYNC_OUT TOUCH_PENIRQ_N TOUCH_I2C_SCL TOUCH SCREEN DRIVER IC TOUCH_I2C_SDA C104 (TOUCH_PENIRQ_N) [Fig. 4.9] Schematic of TOUCH part Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...
Page 103: Rf Component
Front-End-Module U104 Coupler SW100 RF Antenna Connector FL101 GSM900 TX SAW SW101 RF Antenna Connector U101 GSM/EDGE PAM LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...
Page 104: Signal Path
4. TROUBLE SHOOTING 4.13 SIGNAL PATH 4.13.1 UMTS PATH Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...
Page 105: Only For Training And Service Purposes
4. TROUBLE SHOOTING 4.13.2 GSM PATH LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 106 - Only for training and service purposes...
Page 106: Checking Vctcxo Block
1000p U102 TC7SH04FS [Fig. 4.10] Schematic of the TCXO Block [Fig. 4.11] Test Point of the TCXO Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...
Page 108: Checking Front-End Module Block
C113 0.1u [Fig. 4.13] Schematic of the Front-End Module Block [Fig. 4.14] Test Point of Front-End Module Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 109 - Only for training and service purposes...
Page 109 [Table 4.1] Logic Table of the FEM - GSM900 Tx - DCS1800/PCS1900 Tx - UMTS Tx/Rx - GSM900 Rx LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...
Page 110 ANT_SEL0, 1, 2 H igh Level Check VDD 2.5V < Voltgae < 3.0V TP4 VREG_RF_SMPS Check the Logic in each m ode Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...
Page 111: Checking Umts Block
0.01u 100p R116 R117 PWR_DET R118 R119 8 dB 100ohm [Fig. 4.15] Schematic of the WCDMA Tx Block LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...
Page 112 4. TROUBLE SHOOTING [Fig. 4.16] Test Point of the WCDMA Tx Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...
Page 113 Check coupler U104 Check Tx SAW Check Duplexer Filter FL103 FL104 Check PAM block Check FEM FL100 U105 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...
Page 114 4. +VPWR : UMTS PAM Main Voltage ( 3V < +VPWR < 4.2V) 5. PA_ON : Turns the PA on and off 6. PA_R1 : Control signals that step the active PA mode and bias Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 -...
Page 115: Checking Rx Level
100p PCS_RX1 GND1 PCS_RX2 GND2 GND3 EGSM_RX1 GND4 EGSM_RX2 GND5 GND6 GSM850_RX1 GND7 GSM850_RX2 GND8 WCDMA_2100 PCN_PCS_TX GSM850_EGSM_TX LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...
Page 116 Signal exist? FL100 Check TP3 Check the Duplexer Signal exist? FL103 Check TP4 Check the RTR6275 Signal exist? U100 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...
Page 117: Checking Gsm Block
4. TROUBLE SHOOTING 4.17 Checking GSM Block 4.17.1 Checking Front-End Module Refer to chapter 4.15. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...
Page 118: Checking Rf Tx Level
1000p 1000p [Fig. 4.17] Schematic of the GSM Tx Block [Fig. 4.18] Test Point of GSM Tx Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - Only for training and service purposes...
Page 119 Check Soldering of PAM (U101) If problem still exist, replace the PAM Problem resolved ? GSM/DCS/PCS Tx is OK Change the Board LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...
Page 120: Checking Pam Block
Power Amp Enable (ON : >2.5V, OFF : <0.7V) +VPWR PAM Supply Voltage (Vcc > 3V) [Table 3.8] HKADC channel table Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 121 - Only for training and service purposes...
Page 121 L110 18nH [Fig. 4.21] Schematic of EGSM-900, DCS-1800, PCS-1900 Rx Block [Fig. 4.22] Test Point of Rx Block LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...
Page 122 & Soldering of TPs GSM-900, DCS -1800, PCS - Rx still has problem ? 1900 Rx is OK Re-download & Calibration Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...
Page 123: Download
LGMDP supports Windows 2000/XP where the LG (Ver 4.6 or later) USB modem driver is installed. Additionally, LGMDP allows multi downloading up to 9 handsets at the same time.
Page 124: Connecting To Pc
Then click on the Connect button. (The port number(COM16) shall be different from that of the port number in the snapshot.) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 125 While the images are transmitted from PC to the handset, a progressive bar (Red box) indicating the degree of transmission of data is displayed. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 126 - Only for training and service purposes...
Page 126 3) NV Backup/Restore: NV Backup/Restore always have to be done, and it is default selected option. Backup the NV data and restore the backed up NV data automatically. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 127 6) Clear: Clearing all directory paths of images in the dialog. 7) Start: Starting downloading the selected individual image. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
Page 128 The folder name shall be different from that of the folder name in the snapshot. The folder name indicates the path where the image files are located.) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 129 In case of wrong AMSS Modem file is selected, the phone may not work. (The file name shall be different from that of the file name in the snapshot.) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 130 - Only for training and service purposes...
Page 130 Click on the No button if this is not the setting you are downloading for. Otherwise click on the Yes button to continue downloading selected image file with options. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 131 -...
Page 131 WinZip or Alzip.) To download DZ image, simply click on the DZ button. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 132 - Only for training and service purposes...
Page 132 • Select dz image path where dz image file is located by clicking on the Browse... button. Click on the Start Button to start downloading DZ image. If you want to go back to original download mode, click on the Original button. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 133 -...
Page 133 • Erasing the existing directories and files before the Module image is downloaded. • Downloading the AMSS modem image LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 134 - Only for training and service purposes...
Page 134 • Rebooting the handset and re-establishing the connection • Erasing the existing directories and files before downloading the selected Media image Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 135 - Only for training and service purposes...
Page 135 • Downloading Media image in progress. • Downloading Module image in progress. • Rebooting handset • Downloading process has completed successfully LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 136 - Only for training and service purposes...
Page 136 USB connectivity and check where the COM has been installed . Select Device Manager from the Tools of the file menu. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 137 -...
Page 137: Troubleshooting Download Errors
• The below dialog shows parameters of Select Port when phone is booted in Emergency mode. Click on the Connect button to continue. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 138 - Only for training and service purposes...
Page 138 The selected image will be downloaded to the handset from the path directory in the PC. After downloading images successfully, it will boot to normal mode. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 139: Caution
5) Erase EFS option will erase everything (media, module, nv items, and user data) in the EFS area. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 140 - Only for training and service purposes...
Page 140: Block Diagram
6.1 GSM & UMTS RF Block Dugital IO s & controls MSM6280 [Fig. 6.1] UMTS-2100 + EGSM-900/DCS-1800/PCS-1900 RF Functional Block Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 141 - Only for training and service purposes...
Page 141 U104 LDC151G8820Q-359 Coupler U101 SKY77329 TX Dual PAM FL101 EFCH897MTDB1 Tx SAW Filter [Table 6.1] RF Block Component LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 142 - Only for training and service purposes...
Page 142: Interface Diagram
MURATA W_TX [W PAM] [C oupler] PA_R1 AWT6279 R LDC151G88E0Q- ANADIGICS PA_ON PWR_DE [Fig. 6.2] KF700 Interface Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 143 - Only for training and service purposes...
Page 143 UMTS Transmit Gain Control FEM_CTL signal UMTS, GSM900Tx/Rx, ANT_SEL 0,1,2 Ant S witch Module Mod e Selection DCS Tx/Rx, PCS Tx/Rx LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 144 - Only for training and service purposes...
Page 144: Circuit Diagram
VREG_BT_2.85V C177 C178 100p 0.1u R116 R117 PWR_DET C179 C180 R118 R119 2.2u 100p 8 dB 100ohm smd_1608h_9_r - 145 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 145 8/29 Trusted boot 150K : 750K : 2.17V R218 R219 2.2K R220 2.2K VREG_MSMP_2.7V VREG_MSMP_2.7V R221 2.2K 2.2K - 146 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 146 MIC1N UART_RX UTXD USB_D+ MICBIAS UART_TX CN303 MAIN PCB TO KEY PCB MAIN PCB TO SUB FPCB (1.0T) - 147 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 147 0.1u RMT_ADC HSD1- Route together ICHARGEOUT USB+_RINT HSD2- USB-_RADC +VPWR VBAT_GND R425 USB/REMOCON_SEL BATTERY CONNECTOR BATTERY CHARGING CIRCUIT - 148 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 148 TEST_0 CLKN RCLKB SEL1 DATAP RDATA DATAN RDATAB C535 C536 0.1u VREG_ISP_2.8V R516 R517 4.3K 4.3K MTEK ISP - 149 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 149 MIC1N UART_RX 0.1u UART_RX TP101 MICBIAS UART_TX UART_TX TP102 TP PAD FOLDER DETECT KEY PCB TO MAIN PCB - 150 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 150 U100 TSC2007IYZGR TOUCH_I2C_SDA VDD_REF TOUCH_PENIRQ_N PENIRQ- TOUCH_I2C_SCL CN103 C104 0.1u 4PIN TOUCH SCREEN CONNECTOR TOUCH SCREEN DRIVER IC - 151 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 151 DIAL KEY LED SUB PCB TO DIAL KEY FPCB STROBE 650mA TORCH 150mA BAT100 V_BACK_UP C111 BACK_UP BATTERY - 152 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 152: Bgm Pin Map
8. BGM Pin Map 8. BGM Pin Map MCP(TOP View) NOT IN USE Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 153 - Only for training and service purposes...
Page 158: Pcb Layout
Outputs of LDOs-Rx operation <FM Radio IC> - FM radio operation U300 <Memory IC> - Check s/w download - 159 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 159 Main PCB to Key FPCB OVP IC connector - over voltage protection - No booting when users push - 160 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 164: Calibration & Rf Auto Test (Hot Kimchi)
* Procedure 1. Click SETTING in menu, and logic operation in sub-menu. 2. Select the model name (KF700) which you want in list box. 3. Click Start button to calibrate a phone. Copyright © 2008 LG Electronics. Inc. All right reserved.
Page 165 - You can run the multi mode. (S/B1, S/B2 : You can use S/B1 for only one port) - You can set the path of HOTKIMCHI program. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 166 - Only for training and service purposes...
Page 166 - On running, log window in created in center area. It displays logs of command, and measurements of Calibration or Test. - The result files are saved in the directory “C:\Jhangee\debug\Cal”, “C:\Jhangee\debug\Auto” or “C:\Jhangee\debug\CalAuto”. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 167 - Only for training and service purposes...
Page 168: Exploded View & Replacement Part List
11. EXPLODED VIEW & REPLACEMENT PART LIST 11.1 EXPLODED VIEW - 169 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 170: Replacement Parts
COMPLEX, (empty), 0.25t/SRS FORON, , , , Color Without MTAD00 TAPE,WINDOW MTAD0079701 COMPLEX, (empty), 0.15, , , , Color Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 171 - Only for training and service purposes...
Page 171 COMPLEX, (empty), , , , , Color Without MPBU00 PAD,CONNECTOR MPBU0016701 COMPLEX, (empty), , , , , Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 172 - Only for training and service purposes...
Page 172 MGAE0001201 COMPLEX, (empty), 0.3,TR, , , , Color MLAZ00 LABEL MLAZ0038303 PRINTING, (empty), , , , , White Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 173 - Only for training and service purposes...
Page 173 MPBU0027601 COMPLEX, (empty), 0.7t SRS40P(SUB), , , , Color Without MLAZ00 LABEL MLAZ0038301 PID Label 4 Array Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 174 - Only for training and service purposes...
Page 174: Main Component
POLYI ,.2 mm,DOUBLE , ,; , , , , , , , , , SACY01 PCB ASSY,FLEXIBLE SACY0072301 SACE01 PCB ASSY,FLEXIBLE,SMT SACE0065201 KEY F-PCB PCB ASSY,FLEXIBLE,SMT SACC00 SACC0043101 BOTTOM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 175 - Only for training and service purposes...
Page 175 2x2 mm MLPD ,3 PIN,R/TP ,Hall Effect Switch, Pb Free VA100 DIODE,TVS EDTY0008606 DFN-2 ,7.82 V,150 mW,R/TP ,PB-FREE VA101 VARISTOR SEVY0004201 14 V, ,SMD ,120pF, 1005 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 176 - Only for training and service purposes...
Page 176 ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C111 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 177 - Only for training and service purposes...
Page 177 ECCH0009106 10 nF,16V ,K ,X7R ,TC ,0603 ,R/TP C111 CAP,CERAMIC,CHIP ECCH0009106 10 nF,16V ,K ,X7R ,TC ,0603 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 178 - Only for training and service purposes...
Page 178 ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C144 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C145 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C146 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 179 - Only for training and service purposes...
Page 179 ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C314 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 180 - Only for training and service purposes...
Page 180 ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C431 CAP,CERAMIC,CHIP ECCH0000117 27 pF,50V,J,NP0,TC,1005,R/TP C432 CAP,CERAMIC,CHIP ECCH0000117 27 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 181 - Only for training and service purposes...
Page 181 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C531 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 182 - Only for training and service purposes...
Page 182 2140 MHz,1.4*1.1*0.62 ,SMD ,2110M~2170M, IL 2.0, FL102 FILTER,SAW SFSY0031201 5pin, U-B, 50-100_10, WCDMA BAND I Rx ,; ,2140 ,1.4*1.1*0.62 ,SMD ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 183 - Only for training and service purposes...
Page 183 8.2 nH,J ,1005 ,R/TP , L502 INDUCTOR,CHIP ELCH0001033 1.5 nH,S ,1005 ,R/TP ,PBFREE M100 MODULE,ETC SMZY0012601 4.5x3.2x1.2 Bluetooth RF Module LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 184 - Only for training and service purposes...
Page 184 0OHM_1005_DNI OPEN R403 RES,CHIP,MAKER ERHZ0000487 470 Kohm,1/16W ,J ,1005 ,R/TP R404 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 185 - Only for training and service purposes...
Page 185 R515 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP R516 RES,CHIP ERHY0000253 4.3K ohm,1/16W,J,1005,R/TP R517 RES,CHIP ERHY0000253 4.3K ohm,1/16W,J,1005,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 186 - Only for training and service purposes...
Page 186 ,2.8V ,3.2 ,2.5 ,0.9 , ,SMD ,P/TP 32.768 KHz,20 PPM,12.5 pF,70 Kohm,SMD ,3.2*1.5*0.9 X400 X-TAL EXXY0018701 SAFD00 PCB ASSY,MAIN,SMT TOP SAFD0099102 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 187 - Only for training and service purposes...
Page 187 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C227 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C228 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C229 CAP,CERAMIC,CHIP ECCH0000147 2.2 nF,50V,K,X7R,HD,1005,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 188 - Only for training and service purposes...
Page 188 ECCH0000163 47 nF,10V,K,X5R,HD,1005,R/TP C506 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C507 CAP,CHIP,MAKER ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 189 - Only for training and service purposes...
Page 189 51 Kohm,1/16W ,J ,1005 ,R/TP R207 RES,CHIP,MAKER ERHZ0000493 51 Kohm,1/16W ,J ,1005 ,R/TP R208 RES,CHIP,MAKER ERHZ0000493 51 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 190 - Only for training and service purposes...
Page 190 62 Kohm,1/16W ,F ,1005 ,R/TP R502 RES,CHIP,MAKER ERHZ0000308 62 Kohm,1/16W ,F ,1005 ,R/TP R505 RES,CHIP,MAKER ERHZ0000203 10 Kohm,1/16W ,F ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 191 - Only for training and service purposes...
Page 191 48 MHz,.5 %,14 pF,SMD ,2.0*1.2*0.65 ,Outgoing X200 RESONATOR EXRY0002401 Tolerance 0.2%, 0.05% at -40'C ~ +85C, Built-In Cap LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 192 - Only for training and service purposes...
Page 192: Accessory
100-240V ,5060 Hz,5.1 V,0.7 A,CE ,18pin, UK, Viewty ADAPTOR,AC-DC SSAD0025004 packing ,; , ,5.1V ,0.7A , , ,WALL 2P ,I/O CONNECTOR , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 193 - Only for training and service purposes...
Page 193 Note...
Page 194 Note...

LG KF700 Service Manual

1 Introduction

2 Performance

3 Technical Brief

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 BGM Pin Map

9 Pcb Layout

10 Calibration & Rf Auto Test (Hot Kimchi)

11 Exploded View & Replacement Part List

Quick Links

Troubleshooting

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Questions and answers

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Summary of Contents for LG KF700

Table of Contents