LG KF700Q Service Manual

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Internal Use Only

Service Manual

KF700Q

Date: June, 2008 / Issue 1.0

Table of Contents

Troubleshooting

Summary of Contents for LG KF700Q

Page 1 Internal Use Only Service Manual KF700Q Date: June, 2008 / Issue 1.0...
Page 2: Table Of Contents
4.8 Camera trouble ........91 <Main component> ......185 4.9 Main LCD trouble ........97 11.3 Accessory ..........205 4.10 Bluetooth trouble........100 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 • 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 RTR6280(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 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 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 < 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 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 < 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. - 14 - Only for training and service purposes...
Page 14 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 - 15 - Only for training and service purposes...
Page 15: Technical Brief
MSM IC. QUALCOMM’s branded chipset that implements a Zero-IF radio architecture. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...
Page 16 2. The amplitude-modulated (AM) component is applied to the ramping control pin of Polar power amplifier from a DAC within the MSM KF700Q power supply voltages are managed and regulated by the PM6658 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 17: Gsm Mode
(GSM850, EGSM-900, DCS-1800 and PCS-1900). The antenna switch module allows multiple operating bands and modes to share the same antenna. In KF700Q, a common antenna connects to one of eight paths: 1) UMTS-850 Rx/Tx, 2) UMTS-2100 Rx/Tx, 3) GSM850 Rx, 4) EGSM-900 Rx, 5) DCS-1800 Rx, 6)PCS-1900 Rx, 7) GSM850, EGSM-900 Tx (Low Band Tx’s share the same path) and...
Page 18 DC offset corrections. The filter outputs are buffered and passed on to the MSM6280 IC for further processing (an interface shared with the RFR6280 UMTS receiver outputs). [Fig. 3.2] RTR6280 RX feature Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 19 -...
Page 20: Umts Mode
RF. This requires FLO to equal FRF, and the RTR6280 IC design achieves this without allowing FVCO to equal FRF.. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 21 3. TECHNICAL BRIEF [Fig. 3.4] RTR6280 IC functional block diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...
Page 22: Lo Generation And Distribution Circuits
With the integrated fractional-N PLL synthesizers, the RTR6280 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 - 23 -...
Page 23: 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. - 24 - Only for training and service purposes...
Page 24 - 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 - 25 - Only for training and service purposes...
Page 25 - 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. - 26 - Only for training and service purposes...
Page 26 ■ The PM6658 IC is available in the 97-pin chip scale package (97 CSP) that includes several center ground pins for electrical grounding, mechanical strength, and thermal continuity. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 28 R113 VRAMP VRAMP GSM_PA_RAMP GSM_PA_RAMP 2.2K 2.2K C164 C164 C165 C165 C166 C166 [Fig. 3.7] GSM PAM Schematic Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...
Page 29 A UMTS duplexer splits a single operating band into receive and transmit paths. Important performance requirements include; Insertion loss, this component is also in the receive and transmit paths ; In the KF700Q typical losses : UMTS_Tx = 1.5 dB, UMTS_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 30 DC Input level Operating temperature deg. C Storage temperature deg. C [Table 3.3] WCDMA2100 Rx SAW Filter Specification Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...
Page 31 Supply Pa rt VR EG_MSMP VD D _MSM GND Pa rt VD D_A VD D_BAT [Fig. 3.8] Bluetooth system architecture LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...
Page 32 U404 FM_BUSEN SI4702-C19-GM VREG_MSMP_2.7V C461 FM_I2C_SCL 0.1u FM_I2C_SDA SLEEP_CLK [Fig. 3.9] FM Radio system architecture in the KF700Q Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...
Page 33: Digital Base Band (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. - 34 - Only for training and service purposes...
Page 34 3. TECHNICAL BRIEF [Fig. 3.10] Simplified Block Diagram of Baseband Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...
Page 35: 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. - 36 - Only for training and service purposes...
Page 36 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 - 37 - Only for training and service purposes...
Page 37 ■ 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. - 38 - Only for training and service purposes...
Page 38 - 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 - 39 - Only for training and service purposes...
Page 39 ■ 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. - 40 - Only for training and service purposes...
Page 40 ■ 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 - 41 - Only for training and service purposes...
Page 41 3. TECHNICAL BRIEF [Table 3.4] Summary of MSM6280 device features LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...
Page 42 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 43 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. - 44 - Only for training and service purposes...
Page 44: 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 - 45 -...
Page 46 KF700Q Battery Bar Display (Standby By Condition) [Fig. 3.12] PM6658 Charging Block Diagram & Battery Bar Display Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...
Page 47 (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current [Fig. 3.13] PM6658 Trickle Charging Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...
Page 48 ■ 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 - 49 -...
Page 49: 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. KF700Q supports 512MByte free user memory using SD interface. ❏ EBI1 Features...
Page 50 3. TECHNICAL BRIEF [Fig. 3.14] Simplified Block Diagram of Memory Interface Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
Page 51: 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. 3.15] Schematic of RF Interface of MSM6280 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...
Page 52 UART signals are connected to MSM GPIO through IO connector with 115200 bps speed. GPIO_Map Name Note GPIO_96 UART_RXD Data_Rx GPIO_95 UART_TXD Data_Tx [Table 3.6] UART Interface Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...
Page 53 MPP9 USIM_CLK MPP10 USIM_P_CLK MPP5 USIM_RST_N MPP6 USIM_P_RST_N [Fig. 3.17] Schematic of USB block(MSM6280 Side & PM6658 Side) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...
Page 54 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 - 55 - Only for training and service purposes...
Page 55 HOT502 HOT4 HOT3 KEY_ROW(3) KEY_COL(0) CN502 KEY_COL(1) KEY_COL(2) KEY_ROW(0) KEY_COL(3) KEY_COL(4) KEY MAP [Fig. 3.19] Main Keypad Circuit LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...
Page 56 3. TECHNICAL BRIEF 3.10.5 Camera Interface KF700Q Installed a 3M Pixel and 0.3Mega Camera. Below [Fig. 3.20] 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 C113 C114 0.1u 0.1u FB100 CN103 BLM15AG100PN1 CLKN ISP_SENS_MCLK...
Page 57 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. - 58 - Only for training and service purposes...
Page 58 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 - 59 - Only for training and service purposes...
Page 59 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 60 EBI2_DATA(2) INOUT_A2 INOUT_B2 LCD_DATA(2) EBI2_DATA(1) INOUT_A3 INOUT_B3 LCD_DATA(1) EBI2_DATA(0) LCD_DATA(0) INOUT_A4 INOUT_B4 [Fig. 3.22] Schematic of LCD interface Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...
Page 61 [Fig. 3.23] Audio Interface Detailed Diagram(MSM6280) # Image Signal Processor Chip LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
Page 62: 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 - 63 - Only for training and service purposes...
Page 63 MV9319 is comprised of sensor interface, serial interface and image signal processor (ISP) [Fig. 3.24] shows system interface diagram of camera module with MV9319. [Fig. 3.24] Mega Pixel Sensor Module LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...
Page 64 ❏ Either low-speed (1.5Mbps) or full-speed (12Mbps) as a host ❏ In peripheral mode, PM6658-2 supports charging from VBUS ❏ MSM6280 with PM6658-2 also supports analog car kit mode (CEA-936-A) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 -...
Page 65 USB_D+ USB_D- RMT_ADC HSD1- Route together USB+_RINT HSD2- USB-_RADC Removed Short_0ohm USB/REMOCON_SEL [Fig. 3.26] Schematic of USB interface LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...
Page 66 ❏ MCLK output up to 25 MHz 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) MDP_VSYNC_SECONDA_GPIO104 3.11.12 Power Domain Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...
Page 67: Touch Screen Interface
TSC2007IYZGR TOUCH_I2C_SDA VDD_REF TOUCH_PENIRQ_N PENIRQ- TOUCH_I2C_SCL C104 0.1u TOUCH SCREEN DRIVER IC [Fig. 3.28] Schematic of TOUCH SCREEN LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...
Page 68: Trouble Shooting
VREG_MSMP_2.7V(R207), VREG_MSMA_2.6V(C230), VREG_TCXO_2.85V(C162) power up → PON_RESET_N assert to MSM → Phone booting & PS_HOLD(D402) assert High to PMIC(PM6658-2M) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 69 - Only for training and service purposes...
Page 69 VREG_M SM E_1. 8V( C416) VREG_TCXO_2. 85V( C409) VREG_M SM C_1. 25V( C440) VREG_M SM A_2. 6V( C417) PM _ON_SW_N( R402) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...
Page 70: Usb Trouble
USB connected to KF700Q USB_VBUS(VA404) go to 5V USB_D+(C446) go to 3.3V USB_DATA is triggered ßú USB work C446(USB_D+ ) VA404(USB_VBUS) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...
Page 71: Sim Detect Trouble
VREG_USIM_2.85V(C416 of PM6658) go to 2.85V → USIM clock, reset and data triggered → USIM IF work (Schematic and place are refer to SIM technical brief) C101 C100 R101 C410 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...
Page 72: Key Sense Trouble (Keypad)
Corresponding ROW(x) and COL(x) go to 0V → → → Scan pulse( Col Row ) MSM sense what key pressed. DOME SHEET Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...
Page 73 VA511 VA513 VA512 V V A500 VA507 VA508 VA509 [Fig. 4.1] Schematic of key sense part (KEY FPCB) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...
Page 74 CAMERA Double & LOCK KEY CN501 KEY_ROW(1) KEY_ROW(2) KEY_ROW(3) KEY_COL(4) CN502 KEY_ROW(0) KEY_COL(4) [Fig. 4.2] Schematic of key sense part (SUB FPCB) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...
Page 75: Keypad Backlight Trouble
Key pressing → PM6658 KYPD_LED_EN go to Low → LED On (Key Pad LED controlled by PM6658) +VPWR LD501 LEWWS47PAZ LD502 LEWWS47PAZ KYPD_LED_EN [Fig. 4.3] Schematic of keypad backlight part LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...
Page 76: Micro Sd Trouble
→ Micro SD insertion MICROSD_DETECT(R100) goes to low VREG_MMC_3.0V is over 2.85V go working R100 R R 106 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 77 - Only for training and service purposes...
Page 77: Audio Trouble
LCD FPCB connector) CN102(LCD FPCB to Main PCB Connector) TP100, TP101(Receiver → PAD) Receiver C C N 301,C N 102 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...
Page 78 4. TROUBLE SHOOTING S peaker(Receiv er) S peaker(Receiv er) pads CN10 2 CN30 1 MS M628 0 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...
Page 79 R414,R415 FL402(EMI Filter) FB402, FB403 #4, #5 pin of CN401 headset Jack C403,C405 ? FL402 FB402.FB403 ? CN401 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...
Page 80 NUF2114MN FL402 VREG_MSMP_2.7V L401 270nH CN401 FM_ANT FB401 FB402 1800 FB403 1800 [Fig. 4.4] Schematic of voice path Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...
Page 81 CN102(LCD FPCB to Main PCB Connector) TP100, TP101(SPK PAD) Speaker C508,C509 ? U504/ U501 CN301 33,34 CN102 33,34 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...
Page 82 C510 BYPASS 0.01u EUSY0335701 C511 220n RECEIVER SPEAKER SELECT SPEAKER AMP [Fig. 4.5] Schematic of Loud speaker path Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...
Page 83 4. TROUBLE SHOOTING S peaker(Receiv er) pads CN10 2 CN30 1 C50 9 C50 8 U50 4 U50 5 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
Page 84 4.7.4 Microphone for main MIC Main Microphone path as below: → → C515,C516 MSM internal CODEC C513 C515,C516 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...
Page 85 MIC1N C516 0.1u MIC1P MIC501 L201 100nH Place near MSM C201 0.1u C202 C203 47p C204 C211 C214 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...
Page 86 4. TROUBLE SHOOTING C5 1 5 C5 1 6 C5 1 3 [Fig. 4.6] Schematic of Microphone for main mic Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...
Page 87 EAR_MIC → signal MSM6280. EAR_SENSE_N(R420) is 0V? YE S F L40 1 M ICBIAS is 1.8V? FB401? L201? LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
Page 88 Place near MSM C201 0.1u C202 C203 47p C204 C211 C214 [Fig. 4.7] Schematic of Microphone for headset Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - 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. KF700Q has two cameras. The one is a 3 Mega Camera, the other is VGA camera. L L DO( U507) , PIM C( U402)
Page 91 FB101( V RE G_CAM _2.8V ) FB104( V REG_CAM _1.8V ) D101( X SHUTDOWN) 3M CAM CONNECTOR (T=0.9. SOCKET) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...
Page 92 FB102 VREG_ISP_2.8V R119 R120 ( V REG_ISP_2.8V ) 4.3K 4.3K MTEK ISP [Fig. 4.8] Schematic of 3M CAM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 - Only for training and service purposes...
Page 94 M AIN PCB_BOTTOM SUB PCB - TOP R115( CAM _PCLK) R111( CAM _M CLK) VA305( VGA_CAM _RESET_N VA305( VGA_CAM _RESET_N) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...
Page 95 R306( V GA_CAM _PWDN) ( V GA_CAM _RESET_N) MAIN PCB TO LCD FPCB [Fig. 4.9] 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(CN301 in Main PCB) 40-pin connector (in LCD Module) YE S slider FPCB Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
Page 97 4. TROUBLE SHOOTING VA304( LCD_RESET_N) FL301~ FL304( LCD_DATA( 0~ 15) ) R418( VREG_M SM P_2. 7V) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...
Page 98 MAIN PCB TO LCD FPCB FL 301~FL 304 ( L CD_DATA( 0~15) [Fig. 4.10] 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
C167 C167 TCXO_PM TCXO_PM 1000p 1000p C168 C168 TCXO_RTR TCXO_RTR 1000p 1000p [Fig. 4.11] 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 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 C104 0.1u C104(TOUCH_PENIRO_N) TOUCH SCREEN DRIVER IC MAIN PCB TO LCD FPCB [Fig. 4.12] 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
U104 WCDMA PAM SW101 RF Switch Conncetor U405 DCDC Convertor FL103 WCDMA2100 Rx SAW FL105 WCDMA850 Tx SAW 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 WCDMA2100 WCDMA850 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...
Page 106: Checking Vctcxo Block
TCXO_RTR 1000p 1000p [Fig. 4.13] Schematic of the TCXO Block [Fig. 4.14] 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
ANT_SEL3 ANT_SEL3 [Fig. 4.16] Schematic of the Front-End Module Block [Fig. 4.17] 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 HIGH DCS1800 RX HIGH PCS1900 RX [Table 4.1] Logic Table of the FEM Checking Switch Block power source LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...
Page 110: Checking Umts Block
2200p 2200p PWR_DET PWR_DET 1000p 1000p PA_ON1 PA_ON1 2.2nH 2.2nH [Fig. 4.18] Schematic of the WCDMA Tx Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...
Page 111 4. TROUBLE SHOOTING [Fig. 4.19] Test Point of the WCDMA2100 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 For testing, Max power of WCDMA 2100 is needed. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...
Page 113 4. VREG_WCDMA_PA : UMTS PAM Main Voltage ( 3V < +VPWR < 4.2V) 5. PA_ON 1: Turns the PA on and off LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...
Page 114 2200p 2200p 1000p 1000p PWR_DET PWR_DET PA_ON1 PA_ON1 2.2nH 2.2nH [Fig. 4.18] Schematic of the WCDMA Tx Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 - Only for training and service purposes...
Page 115 4. TROUBLE SHOOTING [Fig. 4.21] Test Point of the WCDMA850 Tx Block LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...
Page 116 4. TROUBLE SHOOTING For testing, Max power of WCDMA850 is needed. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...
Page 117 4. VREG_WCDMA_PA : UMTS PAM Main Voltage ( 3V < +VPWR < 4.2V) 5. PA_ON 1: Turns the PA on and off LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...
Page 118 WCDMA_2100 WCDMA_2100 WCDMA_850 WCDMA_850 WCDMA_850 WCDMA_850 WCDMA_1900 WCDMA_1900 PCN_PCS_TX PCN_PCS_TX GSM850_EGSM_TX GSM850_EGSM_TX VREG_RF_2.85V C129 L115 4.7nH C169 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - C171 Only for training and service purposes...
Page 119 PWR_DET 2.2nH 2.2nH 4.7u 1000p RF5184 C195 U104 C1002 2200p VREG_RF_2.85V VREG_RF_2.85V L132 C1005 C1006 2200p 1000p PA_ON1 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...
Page 121 WCDMA_2100 WCDMA_2100 WCDMA_2100 WCDMA_850 WCDMA_850 WCDMA_850 WCDMA_850 WCDMA_1900 WCDMA_1900 PCN_PCS_TX PCN_PCS_TX GSM850_EGSM_TX GSM850_EGSM_TX VREG_RF_2.85V C129 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 122 - L115 4.7nH Only for training and service purposes C169...
Page 122 12nH 12nH GND3 GND3 GND4 GND4 L125 L125 1.5p 1.5p RX_WCDMA_850_M RX_WCDMA_850_M R116 R116 PDET_IN PDET_IN PWR_DET PWR_DET Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...
Page 123: 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. - 124 - Only for training and service purposes...
Page 124 VRAMP VRAMP [Fig. 4.22] Schematic of the GSM Tx Block [Fig. 4.23] Test Point of GSM Tx Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 125 - Only for training and service purposes...
Page 126 Power Amp Gain Control. Typically, 0.2 ~1.6V GSM_PA_EN Power Amp Enable (ON : >2.5V, OFF : <0.7V) +VPWR PAM Supply Voltage (Vcc > 3V) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 127 - Only for training and service purposes...
Page 127 RX_PCS_P [Fig. 4.26] Schematic of GSM-850, EGSM-900, DCS-1800, PCS-1900 Rx Block [Fig. 4.27] Test Point of Rx Block LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
Page 129: 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 130 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 131 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. - 132 - Only for training and service purposes...
Page 132 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 133 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. - 134 - Only for training and service purposes...
Page 134 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 135 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. - 136 - Only for training and service purposes...
Page 136 NV file to be downloaded on the handset. To enable this simply check the box or select the NV file from the LGMDP installation directory by clicking on the Browse... button. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 137 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. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 138 - Only for training and service purposes...
Page 138 • 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 - 139 -...
Page 139 • 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. - 140 - Only for training and service purposes...
Page 140 • 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 - 141 - Only for training and service purposes...
Page 141 • 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. - 142 - Only for training and service purposes...
Page 142 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 - 143 -...
Page 143: 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. - 144 - Only for training and service purposes...
Page 144 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 145 5.3.2 NV Restore Error • Snapshot showing the NV Restore error. Next slide shows the remedial procedure to adopt. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 146 - Only for training and service purposes...
Page 146 • Connect the handset and Press the Connect button in the Select Port window. (Enable state in the window indicates that the Phone has been detected and is ready to download.) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 147 NV Backup was done. Choose the desired NV file to be downloaded on the handset, and click on Start. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 148 - Only for training and service purposes...
Page 148: Caution
4) Recommended that the Module and Media Image have to be downloaded at the same time. 5) Erase EFS option will erase everything (media, module, nv items, and user data) in the EFS area. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 149: Block Diagram
6. BLOCK DIAGRAM 6.1 GSM & UMTS RF Block [Fig. 6.1] UMTS-850/UMTS-2100 + GSM850/EGSM-900/DCS-1800/PCS-1900 RF Functional Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 150 - Only for training and service purposes...
Page 150 RF5184 TX PAM U101 TQM7M5012 TX Dual PAM FL102 LMSM32AA-533 Tx SAW Filter [Table 6.1] RF Block Component Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 151 - Only for training and service purposes...
Page 151: Interface Diagram
6. BLOCK DIAGRAM 6.2 Interface Diagram [Fig. 6.2] KF700Q Interface Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 152 - Only for training and service purposes...
Page 152 U2100 RX UMTS2100 RX RF Signal TX_I/Q I/Q for Tx of RF RX_I/Q I/Q for Rx of RF Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 153 - Only for training and service purposes...
Page 153 FEM_CTL signal UMTS850, UMTS210, GSM850TX/RX ANT_SEL 0,1,23 Ant S witch Module Mod e Selection GSM900Tx/Rx, DCS Tx/Rx, PCS Tx/Rx LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 154 - Only for training and service purposes...
Page 154: Circuit Diagram
L132 L132 C1005 C1005 C1006 C1006 L133 L133 2200p 2200p PWR_DET PWR_DET 1000p 1000p PA_ON1 PA_ON1 2.2nH 2.2nH - 155 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 155 1.4 : 100K : 680K : 2.353V VREG_CAM_2.8V Trusted boot R217 R218 2.2K R219 2.2K VREG_MSMP_2.7V VREG_MSMP_2.7V R220 2.2K 2.2K - 156 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 INOUT_B2 LCD_DATA(2) EBI2_DATA(1) ENBY0031301 INOUT_A3 INOUT_B3 LCD_DATA(1) EBI2_DATA(0) AXK760327 INOUT_A4 INOUT_B4 LCD_DATA(0) MAIN TO SUB CONNECTOR - 60PIN - 157 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 157 U404 _FPWM T_GND FM_BUSEN SI4702-C19-GM VREG_MSMP_2.7V R430 BATTERY CONNECTOR FM_I2C_SCL C461 0.1u FM_I2C_SDA SLEEP_CLK FM RADIO PAM DCDC - 158 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 SUBPMIC_I2C_SDA 4.7u 2.2u 2.2u U508 BH28PB1WHFV TOUCH_LDO_EN STBY BGND +VPWR VOUT C526 C527 470n 470n LCD BACKLIGHT DRIVER - 159 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 159 DATAP RDATA TP105 DATAN RDATAB UART_RX TP106 UART_TX VREG_ISP_2.8V R119 R120 TP107 4.3K 4.3K MTEK ISP TP PAD - 160 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160 C104 0.1u MOTOR+ OUT100 MOTOR PAD 4PIN TOUCH SCREEN CONNECTOR TOUCH SCREEN DRIVER IC MOTOR- OUT101 MOTOR +/- - 161 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 162: Bgm Pin Map
8. BGA PIN MAP 8. BGA PIN MAP MCP(TOP View) NOT IN USE Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 163 - Only for training and service purposes...
Page 168: Pcb Layout
9. PCB LAYOUT U506 <SLIDE DETECT> - check slide up/down detect Fail - 169 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 169 - No service <MIC> - NO MIC Signal FL106 <Duplexer> SW 101 -No W2100 call RF SW -No W2100 service - 170 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 170 - No micro SD detection - Camera operation - Can`t take a picture - Can`t take a picture - 171 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 171 <SUB PCB TO DIAL KEY FPCB> - Dial key operation LD100 <CARMERA FLASH LED> J100 USIM SOCKET CN103 <3M CARMERA CONNECTOR > - 172 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 174: Calibration & Rf Auto Test (Hot Kimchi)
* Procedure 1. Click SETTING in menu, and logic operation in sub-menu. 2. Select the model name (KF700Q) which you want in list box. 3. Click Start button to calibrate a phone. Copyright © 2008 LG Electronics. Inc. All right reserved.
Page 175 - 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. - 176 - Only for training and service purposes...
Page 176 - 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 - 177 - Only for training and service purposes...
Page 178: Exploded View & Replacement Part List
11. EXPLODED VIEW & REPLACEMENT PART LIST 11.1 EXPLODED VIEW 22 24 - 179 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 180: Replacement Parts
ACGQ0026703 Black ACGK00 COVER ASSY,FRONT ACGK0112902 Black F, #4 MBJL00 BUTTON,SIDE MBJL0059902 COMPLEX, (empty), , , , , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 181 - Only for training and service purposes...
Page 181 Without MTAZ00 TAPE MTAZ0168901 COMPLEX, (empty), , , , , Color ARDY00 RAIL ASSY,SLIDE ARDY0004201 Black E, #3 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 182 - Only for training and service purposes...
Page 182 COMPLEX, (empty), 0.13mm/SP100+4350K, , , , Color MWAC WINDOW,LCD MWAC0091203 CUTTING, NS, 1.5, , , , Black A, 1 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 183 - Only for training and service purposes...
Page 183 COMPLEX, (empty), , , , , Color Without MTAZ01 TAPE MTAZ0218201 COMPLEX, (empty), , , , , Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 184 - Only for training and service purposes...
Page 184: Main Component
60 ohm,1005 , SPCY01 PCB,FLEXIBLE SPCY0141001 POLYI ,0.2 mm,DOUBLE , ,; , , , , , , , , , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 185 - Only for training and service purposes...
Page 185 Black PCB ASSY,FLEXIBLE,SMT SACD00 SACD0061601 Black CAMERA SWITCH,TACT ESCY0004201 12 V,0.02 A,HORIZONTAL ,0.2 G, POLYI , mm,DOUBLE ,KF700Q CAMERA SIDEKEY ,; , , SPKY PCB,SIDEKEY SPKY0059601 , , , , , , , SPKY00 PCB,SIDEKEY SPKY0059401 POLYI ,0.6 mm,DOUBLE , ,; , , , , , , , , ,...
Page 186 ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C133 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 187 - Only for training and service purposes...
Page 187 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C162 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C163 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C164 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 188 - Only for training and service purposes...
Page 188 10 uF,6.3V ,M ,L_ESR ,1608 ,R/TP C205 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP C206 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 - 189 - Only for training and service purposes...
Page 189 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C237 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C238 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 190 - Only for training and service purposes...
Page 190 ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C417 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 191 - Only for training and service purposes...
Page 191 10000000 pF,6.3V ,M ,X5R ,TC ,1608 ,R/TP , , ,[empty] C448 CAP,CERAMIC,CHIP ECCH0005604 ,[empty] ,[empty] ,[empty] ,[empty] ,[empty] ,0.8 mm LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 192 - Only for training and service purposes...
Page 192 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C523 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 193 - Only for training and service purposes...
Page 193 FL106 DUPLEXER,IMT SDMY0001102 dB,3.0*2.5*1.0 ,SMD ,SAW Duplexer ,; ,2140 ,41 ,1950 ,50 ,2.0 ,1.4 ,3X2.5 ,DUAL ,[empty] ,[empty] LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 194 - Only for training and service purposes...
Page 194 2.7 nH,S ,1005 ,R/TP , L130 INDUCTOR,CHIP ELCH0004721 2.2 nH,S ,1005 ,R/TP , L131 INDUCTOR,CHIP ELCH0005020 1 nH,S ,1005 ,R/TP , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 195 - Only for training and service purposes...
Page 195 SAFP0000501 SHORT R110 RES,CHIP,MAKER ERHZ0003801 5.1 ohm,1/16W ,J ,1005 ,R/TP R111 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 196 - Only for training and service purposes...
Page 196 100 Kohm,1/16W ,J ,1005 ,R/TP R304 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP R305 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 197 - Only for training and service purposes...
Page 197 510 Kohm,1/16W ,J ,1005 ,R/TP PCB ASSY,MAIN,PAD R430 SAFP0000501 SHORT R501 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 198 - Only for training and service purposes...
Page 198 U501 EUSY0227902 SON5 ,5 PIN,R/TP ,XOR GATE ,; ,IC,TTL U502 EUSY0227902 SON5 ,5 PIN,R/TP ,XOR GATE ,; ,IC,TTL Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 199 - Only for training and service purposes...
Page 199 C512 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP D501 DIODE,TVS EDTY0008606 DFN-2 ,7.82 V,150 mW,R/TP ,PB-FREE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 200 - Only for training and service purposes...
Page 200 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C112 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 - 201 - Only for training and service purposes...
Page 201 SEVY0004201 14 V, ,SMD ,120pF, 1005 DIODE,TVS EDTY0008601 SOD-323 ,6 V,400 W,R/TP ,PB-FREE SAJD PCB ASSY,SUB,SMT TOP SAJD0027902 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 202 - Only for training and service purposes...
Page 202 15 Kohm,1/16W ,J ,1005 ,R/TP R102 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP PCB ASSY,MAIN,PAD R103 SAFO0000501 0OHM_1005_DNI OPEN Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 203 - Only for training and service purposes...
Page 203 1GB / MICROSD / MLC 1 DIE ,; ,Module Assembly 1GB / MICROSD / HYN MLC 1 DIE / EAN30221132 ,; MODULE,ETC SMZY0018301 ,Module Assembly LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 204 - Only for training and service purposes...
Page 204: Accessory
100-240V ,5060 Hz,5.1 V,0.7 A,NOM ,18pin MMI, Nyx SSAD0 ADAPTOR,AC-DC SSAD0024604 packing, Mexico ,; , , , , , ,WALL 2P ,I/O CONNECTOR , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 205 - Only for training and service purposes...
Page 205 Note...
Page 206 Note...

LG KF700Q 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

Related Manuals for LG KF700Q

Summary of Contents for LG KF700Q

Table of Contents