Page 1 Internal Use Only Service Manual KG195 Date: September, 2007 / Issue 1.0...
Page 2 Changes This Issue, Page and Description Remarks Draft 1.00 20.07.2007 All for Publication First draft Issue KG195 SERVICE MANUAL V1.5 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 1 - Only for training and service purposes...
Page 4: Table Of Contents
4.2.15 CAMERA........46 4.2.16 AUDIO SUBSYSTEM ....47 4.2.17 FM interface ........50 4.2.18 Bluetooth interface ......51 4.2.19 RF Sub-systems ......52 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...
Page 7 1. Introduction 1. Introduction This is the Electronic Service Manual for KG195 Triple Band GSM Digital Cellular Telephone from LG. It contains specific information on repair and test procedures. For details of user functions, general operation and installation, please refer to the User Guide.
Page 8: Precautions For Repair Work
SECTION 2 Precautions for Repair Work Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...
Page 9 If printed circuit boards are to be stored without being re-assembled into their equipment, then they must be kept in an anti-electrostatic bag. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 8 - Only for training and service purposes...
Page 10 Each solder point must be heated simultaneously and quickly (to prevent component and PCB damage). When the solder has melted, remove the component with tweezers. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 -...
Page 11 (especially the eyes and face) should not come into contact with the antenna while the equipment is transmitting. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...
Page 12 • Be careful sufficiently so as not to blow air with the process into the receiver, speaker/MIC sound hole. It causes sounds being small by the diaphragm transformation or vibration. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 14 PSRAM + 512Mb NAND Internal NAND 512Mb NAND Memory Card T-flash Bluetooth Yes, version 1.2 Yes, slave 1.1 IrMC Yes, 2.0 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...
Page 15 Dictionary MPEG4 caller ID Finger handwriting Touch Panel Caption AB repeat Music Equalizer Image Editing In flight mode LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...
Page 16 The physical dimension is [Length x Width x 103.5*46.3*12.4mm Thickness mm] Physical The overall volume is [# cc] The weight is [# g] Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 15 - Only for training and service purposes...
Page 17 - Build-in NAND [MB]. Used as mobile disk. Storage (Notes : Designed footprint shall be possible to support multiple memory capacity) - Micro SD LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...
Page 18 Battery life is Network dependent; variations may occur. The KG195 HHP works closely with the network and the standby and talk times achieved depend upon this. In particular the location of the HHP within the network, the type of SIM, reception of area messages, the use of AMR, Full Rate speech, Half Rate speech or Enhanced Full Rate speech and other factors will affect both standby and talk times.
Page 19 Uplink : Up to 21.4Kbps (1 slot) Downlink : Up to 85.6Kbps (4 slots) Data Rates (Circuit Switch): EGSM/DCS1800/PCS1900 : Up to 9600Kbps LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 18 - Only for training and service purposes...
Page 20 Phase and Frequency Error Peak Phase Error < 20 degrees RMS Phase Error < 5 degrees Frequency Stability < +/- 90Hz Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 19 - Only for training and service purposes...
Page 21 Phase and Frequency Error Peak Phase Error < 20 degrees RMS Phase Error < 5 degrees Frequency Stability < +/- 180Hz LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...
Page 22 Phase and Frequency Error Peak Phase Error < 20 degrees RMS Phase Error < 5 degrees Frequency Stability < +/- 185Hz Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 - Only for training and service purposes...
Page 23 + 80 Mhz = F BER (Bit Error Ratio) Type II BER <2.4% at -102dBm Type II BER <0.1% at -23dBm LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...
Page 25: Logic Block Diagram
4. Circuit Description 4. Circuit Description 4.1 LOGIC BLOCK DIAGRAM LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...
Page 26: Logic
• Bluetooth(BC313141A18) • TOSHIBA MCP(128+32+512MB) • User I/O (KEY,MINI SD CARD,USB Client,SIM card ) 4.2.2 SYSTEM BLOCK DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...
Page 27: Memory Subsystem
The interface definition based on such scheme is listed in following table. Note that, this interface always operates data in Little Endian format for all types of accesses. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...
Page 29: Mtk6226 Base Band Chip
12. Power, Reset and Clock subsystem - manages the power, reset, and clock distribution inside MT6226. Details of the individual subsystems and blocks are described in following Chapters. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...
Page 30: Pmu Ic Mt 6305
Va, Vtcxo No Battery or Vbat <2.5V 2.5V < Vbat < 3.2V Pre-Charging Charger-on Switched off Stand-by Active Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...
Page 31 SIM Supply SIMIO Non-Level-Shifted Bidirectional Data I/O SIMRST Non-Level-Shifted S ll High to VIO IM Reset Input, Internal Pu LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...
Page 32 High for Vm=2.8 V, Low for Vm=1.8V, Internal Pull High to VIO VBAT Battery Input Voltage VCORE Digital Core Supply Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...
Page 33 Digital Audio Interface (DAI) block communicates with the System Simulator for FTA or external Bluetooth modules. Figure 1 Block diagram of audio front-end LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...
Page 34 Detect Battery Voltage and Current ADC2_TBAT Detect Battery temputer ADC3_VCHG Detect Charging voltage ADC5_USB Detect USB device ADC6_ASS_ID Detect handfree Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...
Page 35: Circuit Diagram
82nH KROW5 C101 33pF C104 33pF HSP106 HSP101 HSP102 HSP103 S122 KEY PA D PWRKEY ON/OFF POWER KEY LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...
Page 36: Vibrator
BLUE LED BLUE LED BLUE LED BLUE LED R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 KP_BL- Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...
Page 37: Battery Charging
100K _1% 0603C-S 0402R-S 0402R-S PGND TP505 YC124 PGND TP1.5 C516 100nF_10% J502 0402C-S 1 3 5 250072MB003G501ZL BAT-BAR13-037102 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...
Page 38 10mV (typically) across the external current sense resistor. This pre-charge current can be calculated: Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 - Only for training and service purposes...
Page 39 CV mode ADC6_ASS_ID CC mode Notes: OV terminates charging at 4.3V for Li-ion battery or 5.1V for NiMH battery. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...
Page 40: Real-Time Clock (Rtc)
The RTC module of 7332 is supplied by 3V Backup Battery made by Sanyo. The target of running time of the backup battery (fully charged) is longer than two hours after the main battery is removed. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 41: External Interface
ESDA V717 0805C-S HSP706 0402R-S ESDA ESD_PAD 0402R-S U704 R716 DTC323TU 0402R-S V704 ESDA C718 0402R-S 100nF_10% 0402C-S LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...
Page 42: Sim Interface
All the above control signals maintain their state when MTK6226 is powered down. This allows the SIM to remain powered during soft-OFF. SIMPWR should be switched OFF when handset °Æhard- OFF’ mode is selected. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 41 -...
Page 43: Signal Control Path For
LED1 LED1 LED2 LED2 LED3 LED3 C804 100pF_5% 0402C-S C802 C805 U801 4.7uF_10%_6.3V 1uF_10%_10V RT9363 0603C-S 0402C-S RT9363 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...
Page 44 C901 0402R-S 2.2uF_10%_10V C907 100nF_10% CM_DOVDD 1nF_10% 0603C-S 2.2uF_10%_10V 0402C-S 0402C-S 0603C-S C904 C906 100nF_10% 2.2uF_10%_10V 0402C-S 0603C-S Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 - Only for training and service purposes...
Page 45: Display System
4.2.14 DISPLAY SYSTEM 4.2.14.1 TFT LCD Module The IM177BBNBA model is a Color TFT LCD supplied by LG Innotek. This Module has a 1.77 inch diagonally measured active display area with 128(RGB)X160 resolution Each pixel is divided into Red, Green and Blue sub-pixels and dots which are arranged in vertical stripes.
Page 47: Camera
• Interface: SCCB Bus • Operating Temperature: 0 to 50 Centigrade • Storage Temperature: -40 to 80 Centigrade LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...
Page 48: Audio Subsystem
C417 C418 33pF_5% 33pF_5% 33pF_5% 33pF_5% 33pF_5% 33pF_5% 0402C-S 0402C-S 0402C-S 0402C-S 0402C-S 0402C-S NEC Confidential & Proprietary Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...
Page 49: Audio Control
V711 ESDA ESDA HSP704 HSP705 ESDA 33pF_5% 33pF_5% ESDA 0402R-S 0402R-S ESD_PAD ESD_PAD 0402R-S 0402C-S 0402C-S 0402R-S RECEIVER LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...
Page 50 ESDA V717 0805C-S HSP706 0402R-S ESDA ESD_PAD 0402R-S U704 R716 DTC323TU 0402R-S V704 ESDA C718 0402R-S 100nF_10% 0402C-S Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...
Page 51: Fm Interface
Furthermore, to reduce the need for extra external current-driving component, the driving strength of some BPI outputs is designed to be configurable. Figure 7. Si4703 FM Receiver Block Diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...
Page 52: Bluetooth Interface
The 4Mbit ROM is metal programmable,which enables an eight week turn-around from approval of firmare to production samples. BlueCore3-ROM CSP System Architecture Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
Page 53: Rf Sub-Systems
The device is housed in a 56-pin QFN SMD package with a downset paddle for additional grounding. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...
Page 54 78 dB dynamic range of the PGA ensures a proper signal level for demodulation. The quadrature 2nd mixers are provided on-chip to down convert IF signal to baseband in an analog differential IQ format. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 -...
Page 55 After the calibration, a fast-acquisition system is utilized for a period of time to facilitate fast locking. Once the acquisition is done, the PLL reverts back to the normal operation mode. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...
Page 56 An internal P-channel MOSFET pass transistor is used to achieve a low dropout (LDO) voltage of less than 150 mV in all regulators. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 58: Structure
5. Servicing 5. Servicing 6.1 STRUCTURE 1. KG195 Front View Back View Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...
Page 59 9.Camera connection terminal 10.Receiver connection terminal 11.Speaker connection terminal 12.SD Card connection terminal 13.LED, camera control and LCD driver circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...
Page 60: Front Cover
5. Servicing FRONT COVER The Front cover contains following main parts :- 1.Receiver 2. Keypad 2. keypad 1.Receiver Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 59 - Only for training and service purposes...
Page 61: Rear Cover
7. Volume key 8. Camera key vibrator Camera ke y Charger cover SD Card cover speaker microphone Volume key Antenna LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...
Page 64: Exploded Diagram
5. Servicing 5.3 ASSEMBLY Assembly 1. Assembly Camera 2. Assembly Keypad PCBA 3. Assembly Loudspeaker Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...
Page 65 5. Servicing 4.Assembly Vibrator 5. Assembly Charger cover 6. Assembly Camera key 7. Assembly SD card cover LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...
Page 66 5. Servicing 8. Assembly Micphone 9. Assembly Volume key 10.Assembly Main board 11.Assembly Receiver Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...
Page 67: Disassembly
5. Servicing 12.Assembly Front cover 5.4 DISASSEMBLY Disassembly 1. Take off battery cover LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...
Page 68 2. Unfasten 4 screws form rear cover. 3. Use the Guitar Pick to take off front cover 4. Remove the Receiver Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...
Page 69 6. Remove loudspeaker, vibrator, charger cover, camera key, SD card cover, Micphone, volume key Loudspeake Vibartor Charger cover Volume key Camera SD card cover Micphon LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...
Page 71: Soldering
5. Servicing 5.5 SOLDERING SOLDERING PARTS LOCATION SOLDERING REPAIRED PARTS AT SERVICE LEVEL 2 ARE SHOWN AS BELOW. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...
Page 72 MT6129 S ARR D5V0L 42M50 SAW Filter FAR- 8425 Backup Battery XH414H IV01E SAW Filter FAR-F6EB-1G9600 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...
Page 74: Testing
+3.8V TX peak current 2500mA max. GPRS Class Class10 (max 1UL/4DL) Operation class B GPRS Coding scheme CS1/CS2/CS3/CS4 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...
Page 75 RF connector and RF cable should be used for RF test PC-Link cable PC-link cable (Serial Link Cable) should be used. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...
Page 76 Press #*878# to enter service mode. 3.3.3 Software Version Check Select item 1 “Service Info” in Service mode to check software version. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...
Page 77 17. MTBF 18. UART 19. Memory card 20. Nand flash 21. Camera 22. Total call time 23. FM radio LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...
Page 78 Board 6. UART Cable 8. RF Cable 4. GSM Test Set 2. PRINTER E5515B (HP8960) 3. PSU HPE3631A Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 77 - Only for training and service purposes...
Page 79 RX Class2 RBER <2.4% @ -103.5dBm (avg 10000bit) RX Level 7 +/-4 @ -103.5dBm RX Quality <3 @ -103.5dBm LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...
Page 80 : -30 dBc or -17 dBm, whichever is the higher. For DCS1800 and PCS1900 MS : -30dBc or -20dBm, whichever is the higher. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...
Page 81: Test Procedure
Mobile Phone TX Level Mobile Phone Timeslot PSU output voltage +3.8V +/- 0.05V PSU maximum current limit 2800mA LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...
Page 82 -85dBm, Mobile power level to PL0. 3. Push “Execute” and check establish hand over. *1 Refer to 1.Overview Channel selection condition Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 -...
Page 83 2. Wait to indicate “Call End” and change to idle screen. 3. Push “Power” to check shut down. *1 Refer to 1.Overview Channel selection condition LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...
Page 84 (24hour) Note : Stingray’s BackUp Battery will become empty in 2.5 days. BackUpBattery test must be performed within two days after soldering VIB FPC. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 -...
Page 85 How to use repair jig Power suppily Download cable Connect power suppil y PCBA JIG Connect download cable LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
Page 86: Trouble Shooting
Re-download S/W Vcore C508 1.8V AVDD C510 2.8V VMEM C512 2.8V PMIC_VCTXO C511 2.8V C509 2.8V X401: 32KHz Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...
Page 87 Clean the receiver contacts (J702) (J702) Good Check the C702 output U401 is damaged. Good Replace receiver. C702 Outputy LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...
Page 88 Use SHF to confirm the same Reinstall handset connector (J704) fault or not. Same fault (U401) is damaged. J705 output Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...
Page 89 Check the U702 input Relpace U401 Good Check the U702 output Relpace U702 Good U401 is damaged. U702 input U702 output LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
Page 90 Check U801 is ok ? Relpace U801 Check LCM data bus is ok ? Relpace U401 LCM damage Check LCM data bus Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...
Page 91 Check U302 PIN2 3V ? Check R303 is 470 Replace R303 ohm ? Check X301 have 26 Replace U301 MHz? Re-download S/W LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...
Page 92: Sim Card
Clean J501 or Replace Check ESDA 501~504 Replace ESDA 501~504 is ok ? U502 damage Check ESD 501~504 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 91 - Only for training and service purposes...
Page 93 Check J101 connector Clean J101 connector Check Metaldome Change Metaldome Re-install or change Check keypad PCBA keypad PCBA U401 damage LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...
Page 94 Check U101 output ? Replace U101 Replace U401 Check U201 input ? Check X201 output? Replace X201 Download S/W or Re-calibration Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 - Only for training and service purposes...
Page 95 6. Repairing J201 Output U102,U101,U201 output U201 input X201 output LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...
Page 96: Keypad Switches And Key Backlight Illumination
KROW0 KCOL0 KROW0 KCOL2 V608 KCOL1 ICVE21054E250R101 V607 ICVE21054E250R101 ICVE21054E250R101 ICVE21054E250R101 KROW3 KROW4 KROW5 KCOL0 V609 ICVE21054E250R101 ICVE21054E250R101 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...
Page 97 LED1 LED1 LED2 LED2 LED3 LED3 C804 100pF_5% 0402C-S C802 C805 U801 4.7uF_10%_6.3V 1uF_10%_10V RT9363 0603C-S 0402C-S RT9363 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...
Page 98 ESDA V717 0805C-S HSP706 0402R-S ESDA ESD_PAD 0402R-S U704 R716 DTC323TU 0402R-S V704 ESDA C718 0402R-S 100nF_10% 0402C-S Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
Page 99 GND2 ESDA 27pF_5% ESD_PAD ESD_PAD U702 0402R-S 0402C-S TPA2010D1/LM4670/LM4671 R703 C735 LM4670 100K_5% 27pF_5% 0402R-S 0402C-S SPEAKER AMPLIFIER LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...
Page 100 TP0.5 TP702 GPIO2 TP0.5 TP701 GPIO1 TP0.5 RFGND GPIO4_FMRST GPIO12_FM_32K P.4 RCLK C709 10nF_10% R713 0402C-S 100K_5% 0402R-S Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 99 - Only for training and service purposes...
Page 101: Camera Module
CMHREF CMDATA9 CMDATA8 CM_AGND B901 C909 MMZ1608S121AT 0603B-S 0402C-S U902 MXC6202XJ TEST Vdd2 GPIO8_SCL P.4,7 GPIO9_SDA P.4,7 CM_AGND LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...
Page 102 BLUE LED BLUE LED BLUE LED BLUE LED R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 KP_BL- Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 - Only for training and service purposes...
Page 103 100K _1% 0603C-S 0402R-S 0402R-S PGND TP505 YC124 PGND TP1.5 C516 100nF_10% J502 0402C-S 1 3 5 250072MB003G501ZL BAT-BAR13-037102 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...
Page 104 SD_CD C602 2.2uF_10%_10V Trans-Flash 0603C-S Socket R605 R607 47K_5% 1M_5% 0402R-S 0402R-S V610 V611 PESD5V0L5UY PESD5V0L5UY PESD5V0L5UY PESD5V0L5UY Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...
Page 105 Vibrator VBAT C603 100nF_10% VIB-F7TC-AR10 0402C-S VIBRATOR J603 D602 RB520S-30 RB520S30T1 VIB_ON R609 C604 10_5% 100nF_10% 0603R-S 0402C-S LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...
Page 110: Device Information
Output YUV video component output bit[3] Output YUV video component output bit[4] Output YUV video component output bit[5] Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 109 - Only for training and service purposes...
Page 111 FRONT END MODULE (TX/RX SWITCH) 1. Pin List DCS_RX PCS_RX (10) (11) GSM(850/900)-RX DCS/PCS_TX (12) (13) GSM(850/900)_TX (14) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...
Page 112 Power supply for Pseudo SRAM CCps Power supply for Nor Flash Memory Power supply for Nand E PROM Ground Not connected Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...
Page 114 BiCMOS Enable RSVD(GND) RF and DC Ground VAPC Power Control Bias Voltage GND PAD Ground Pad, device underside Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...
Page 116 GPIO_14 SD Card Detect Input SD_CLK MicroSD serial clock GPIO_15 SD Write Protect SD_CD MicroSD detect input Input Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 - Only for training and service purposes...
Page 117 Reserve for touch sensor GPIO_37 IrDA receive data Not Used Not Used GPIO_38 IrDA transmit data Not Used Not Used LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...
Page 118 Parallel LCD/Nand- Not Used Not Used Flash Data 16 GPIO_56 Parallel LCD/Nand- Not Used Not Used Flash Data 17 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...
Page 120 Reset Delay Time Capacitance /RESET System Reset, Low Active VTCXO TCXO Supply AVBAT Battery Input Voltage for Analog Block Circuits Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - Only for training and service purposes...
Page 121 High for Vm=2.8 V, Low for Vm=1.8V, Internal Pull High to VIO VBAT Battery Input Voltage VCORE Digital Core Supply LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...
Page 123 UART request to send active low weak internal pull-up CMOS input with weak UART_CTS UART clear to send active low internal pull-down LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...
Page 124 PIO[7] programmable strength Programmable input/output line internal pull-up/down PIO[0] Bi-directional Programmable input/output line PIO[2] Bi-directional Programmable input/output line Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...
Page 125 Analog supply voltage. May be connected directly to battery. 17, 18, 19 GPIO3, GPIO2, General purpose input/output. GPIO1 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 124 - Only for training and service purposes...
Page 127 Synthesizer ground VCXOCXR VCXO internal / external output buffer control VCXOCAP VCXO coarse tuning capacitor and fine tuning varactor LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 126 - Only for training and service purposes...
Page 129: Ate Tool
- Agilent 3631A power supply - Willtek WT4400 power supply option Others USB download cable Bummy battery RF cable LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
Page 130 8. ATE TOOL The following diagrams depic the system setups when using the R&S CMU200 or Agilent test platform. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 129 - Only for training and service purposes...
Page 132 To install the MTK ATE tool, execute the setup.exe file. The Installation Wizard guides the user through the installation process step by step. Press Next Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 131 -...
Page 134 8. ATE TOOL PRESS FINISH AND INSTALL FINISH Install META and press Next Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 133 - Only for training and service purposes...
Page 137 8. ATE TOOL Execute Measurement & Automation to check equipment address Choose Devices and Interfaces LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 136 - Only for training and service purposes...
Page 138 8. ATE TOOL You can see your equipment adderss Choose MTK_7332_SETUP_ep1_20070322.ini and open the file to setup from data files Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 137 - Only for training and service purposes...
Page 139 Setup your CMU Base GPIB Adderss and power supply address Please setting AG8960 GSM = 1 and save the file LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 138 - Only for training and service purposes...
Page 140 8. ATE TOOL ATE Tool system setting Execute MTK_atedemo Press Report & System button Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 139 - Only for training and service purposes...
Page 141 8. ATE TOOL Setting your equipment Setting Bar Cade Get Type When Calibration Choose "Scan Barcode" LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 140 - Only for training and service purposes...
Page 142 8. ATE TOOL Setting your power supply type Choose your Power Supply Type Setting your GSM/EDGE Tester Choose your Tester Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 141 - Only for training and service purposes...
Page 143 Choose your baseband chip type : 6226 Choose your download com port Choose your download cable connect COM port LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 142 - Only for training and service purposes...
Page 144 8. ATE TOOL Cancel Loss Cancel Cal INP LOSS and Cal OUP LOSS Choose “select test setup file” Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 143 - Only for training and service purposes...
Page 147 8. ATE TOOL How to setup your test report location Choose my computer Choose “C”disk LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 146 - Only for training and service purposes...
Page 149 8. ATE TOOL Setup new file and leave the window Execute MTK_atedemo LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 148 - Only for training and service purposes...
Page 150 8. ATE TOOL Press Report & System button Press “select test report locatuion” Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 149 - Only for training and service purposes...
Page 152 8. ATE TOOL Setup finish When you finish the setup then you press save change icon. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 151 - Only for training and service purposes...
Page 153 8. ATE TOOL Press Configuration choose CalSetting Setting your cable loss LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 152 - Only for training and service purposes...
Page 154 8. ATE TOOL Press Dnoe to save Press Configuration choose Finalsetting Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 153 - Only for training and service purposes...
Page 155 8. ATE TOOL Choose “MT Call” from Establish Call Type Keyin your test SIM card number form IMSI NUMBER LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 154 - Only for training and service purposes...
Page 156 8. ATE TOOL Press Done and save your setting f you want calibration , you can press “initial calibration” Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 155 - Only for training and service purposes...
Page 158 8. ATE TOOL Press your phone of power on key and Start calibration Calibration is ok and will show “PASS” Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 157 - Only for training and service purposes...
Page 159 If you want see test report , you can press “View log file” You can see the test report LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 158 - Only for training and service purposes...
Page 160 8. ATE TOOL If you want final test , you can press “initial final test “ Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 159 - Only for training and service purposes...
Page 162 8. ATE TOOL 1. Handset to insert sim card 2. Key-in bar code or IMEI number 3. power on handset Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 161 - Only for training and service purposes...
Page 165 8. ATE TOOL If you want see the test report , you can press “View Log File” LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 164 - Only for training and service purposes...
Page 167 8. ATE TOOL If you want initial cal and final test , you can press “initial cal and final test” LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 166 - Only for training and service purposes...
Page 169 8. ATE TOOL 1.Handset to insert sim card 2.Key-in bar code or IMEI number 3.Power on handset LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 168 - Only for training and service purposes...
Page 174 8. ATE TOOL If you want see the report , you can press “View Log File” Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 173 - Only for training and service purposes...
Page 177: Swoftware Download Procedure
→ Choose I accept the terms in the license agreement → Type user name / organization. [You could type any anything or just follow it up] LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 176 - Only for training and service purposes...
Page 178 9. Swoftware Download Procedure → Select default folder → Press Install Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 177 - Only for training and service purposes...
Page 179 9. Swoftware Download Procedure → Press Finish → Enable Leo Download tool LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 178 - Only for training and service purposes...
Page 180: Connect Download Cable With Computer And Mobile
→ Select COM port (Maybe it will show different COM because of we use different computer) → Press Setting and then you will see Multiport Data folder. Change it to the folder which you store the Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 181 → Select the. Pcs file and press open. After few seconds, you will see below screen. → Press Yes LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 180 - Only for training and service purposes...
Page 182 → After you see the pink cycle, long press power on key and then you will see below picture. → After reach to 100%, SW downloads finish. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 185 0402C-S RX1900 L110 C129 L109 3.9nH_5% 3.3pF_5% 1.5nH_5% 0402L-S 0402C-S RX1900B 0402L-S C130 FL103 0.5pF_5% FAR-F6EB-1G9600-B2BE 0402C-S FAR-F6EB-1G9600-B2BE - 184 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 186 2.2uF_10%_10V 10pF_5% 5.6pF_5% C223 C226 2.2uF_10%_10V 22pF_5% 0402C-S 0402C-S 0603C-S 0402C-S 0402C-S 2.2uF_10%_10V 27pF_5% 0603C-S 0402C-S 0603C-S 0402C-S - 185 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 187 C314 10nF_10% 0402C-S R301 47K_5% 0402R-S X301 26Mhz/7M26000056 TCXO3225 GPIO11_BT_26MHz C315 0402C-S C312 C313 10pF_5% 3.3pF_5% 0402C-S 0402C-S - 186 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 188 VSS33_ANA AVSS_PLL 0402C-S VSS33_ANA AVSS_MBUF NC/VSS33_ANA AVSS_BUF Near U400 AGND_AFE AVSS_AFE AGND_RFE AVSS_GSMRFTX VUSB VDD33_USB AVSS_RFE VRTC AVDD_RTC - 187 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 189 1uF_10%_10V 0402C-S C517 R509 0402C-S C520 C522 1uF_10%_10V 100K_5% 10nF_10% 0402C-S 0402R-S C526 0402C-S 0402C-S 0402C-S USB POWER - 188 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 190 ESD_PAD ESD_PAD R612 3.3K_5% St at us L ED ( Yellow Green) 0402R-S KEY PA D POWER KEY - 189 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 191 ESDA U702 0402R-S 0402C-S C718 0402R-S TPA2010D1/LM4670/LM4671 100nF_10% R703 C735 LM4670 0402C-S 100K_5% 27pF_5% 0402R-S 0402C-S SPEAKER AMPLIFIER - 190 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 192 LED1 LED1 LED2 LED2 LED3 LED3 C804 100pF_5% 0402C-S C802 C805 U801 4.7uF_10%_6.3V 1uF_10%_10V RT9363 0603C-S 0402C-S RT9363 - 191 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 193 C901 0402R-S 2.2uF_10%_10V C907 100nF_10% CM_DOVDD 1nF_10% 0603C-S 2.2uF_10%_10V 0402C-S 0402C-S 0603C-S C904 C906 100nF_10% 2.2uF_10%_10V 0402C-S 0603C-S - 192 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 194 82nH KROW5 C101 33pF C104 33pF HSP106 HSP101 HSP102 HSP103 S122 PWRKEY KEY PA D ON/OFF POWER KEY - 193 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 195 I.C LDO_LP3995ITLX-3.0_u'SMD_5 Bump balls_NoMemory_NS_3.0V/150mA IC BASEBAND PROCESSOR_MT6226BA/BC- U401 EUSY0326801 311-0000-00001 L_TFBGA_296_BALL_NoMemory_MTK_N/A I.C STACKED U402 EUSY0326901 311-0000-00015 MEMORY_TV00579002EAGD_PFBGA_107_128M+32M+512M_TOSHIBA_NOR FLASH+PSRAM+NAND EEPROM - 194 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 196 CON. MINI USB CONNECTOR_MNC40-5K5U13_0.800 mm_5 pin_ACON_H=3.95 mm CASE_7332_SILVER_COPPER-NICKEL-ZINC ALLOY_N/A_BASEBAND SHIELD CAN, SHIELD MCBA0022501 415-73320-0014 CASE_JINCHYA_T= 0.15mm Cover_7332_NoColor_COPPER-NICKEL-ZINC ALLOY_N/A_RF SHIELD CAN, SHIELD MCBA0022701 405-73320-0002 CASE_JINCHYA_N/A - 195 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 197 MTAK0002401 415-73320-0011 ADHESIVE_7332_NoColor_ADHESIVE_N/A_Camera lens Tape_SIAU CHON_N/A DECO,CAMERA MDAD0032701 415-73320-0009 DECORATION_7332_SILVER_ALUMINUM_N/A_Camera Ring_JINCHYA_N/A TAPE,DECO MTAA0142401 415-73320-0007 ADHESIVE_7332_NoColor_ADHESIVE_N/A_Camera Ring Tape_SIAU CHON_N/A - 196 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 198 306-0000-00028 SBPL0089703 - LA code:SBPL0089702 SBPL0089701 SBPL0089701 - CN DATA CABLE SGDY0013501 410-7110000003 Data Cable_7110_FOXCONN_USB/Mini USB, L=300 mm - 197 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 199 RF Cable Repair Jig SW D/L CABLE SGDY0013001 410-7332000001 SW D/L Cable DUMMY BATTERY No partnumber, purchasing Dummy Battery - 198 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

LG KG195 Service Manual

1 Introduction

2 Precautions for Repair Work

3 Unit Specification

4 Circuit Description

5 Servicing

6 Repairing

7 Device Information

8 Ate Tool

9 Swoftware Download Procedure

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Summary of Contents for LG KG195

Table of Contents