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LG KS20 Operating Instructions Manual
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LG KS20 Operating Instructions Manual

LG KS20 Operating Instructions Manual

Operating instructions
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Table of Contents

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See also: User Manual
1. INTRODUCTION.................................. 5
1.1 Purpose ...................................................... 5
1.2 Regulatory Information ............................... 5
2. PERFORMANCE ..................................7
2.1 System Overview.........................................7
2.2 Usable environment.....................................8
2.3 Radio Performance......................................8
2.4 Current Consumption.................................14
2.5 RSSI BAR ..................................................14
2.6 Battery BAR ...............................................15
2.7 Sound Pressure Level ...............................16
2.8 Charging ....................................................16
3. TECHNICAL BRIEF............................17
3.1 General Description ...................................17
3.2 GSM Mode.................................................19
3.3 UMTS Mode...............................................23
3.5 Off-chip RF Components ...........................25
3.7 Hardware Architecture ...............................37
3.8. Subsystem(MSM7200) .............................39
3.9. Power Block..............................................42
3.10. External memory interface......................47
3.11. H/W Sub System ....................................49
3.12. Main Features.........................................76
4. TROUBLE SHOOTING.......................82
4.1 RF Component ..........................................82
4.2 SIGNAL PATH_UMTS RF .........................85
4.3 SIGNAL PATH_GSM RF ...........................86
4.4 Checking VCTCXO Block ..........................87
4.6 Checking UMTS Block...............................91
4.7 Checking GSM Block.................................96
4.8 Checking Bluetooth Block........................102
4.9 Checking WLAN Block.............................104
4.10 Power ON Troubleshooting ...................108
4.11 Charger Troubleshooting .......................110
4.12 USB Troubleshooting.............................113
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

Table Of Contents

- 3 -
4.13 SIM Detect Troubleshooting ..................115
4.14 Camera Troubleshooting .......................117
4.16 Main LCD Troubleshooting ....................121
4.17 Receiver Path ........................................122
4.18 Headset path .........................................124
4.19 Speaker phone path ..............................126
4.20 Main microphone ...................................128
4.21 Headset microphone..............................130
4.22 Vibrator ..................................................132
5. DOWNLOAD.....................................133
5.1 KS20 DOWNLOAD..................................133
6. BLOCK DIAGRAM ...........................146
6.1 GSM & UMTS RF Block ..........................146
6.2 Interface Diagram ....................................148
7. Circuit Diagram................................153
8. BGA IC PIN MAP..............................163
8. PCB LAYOUT ...................................169
Program (Hot Kimchi) .....................177
9.1 Configuration of HOT KIMCHI .................177
9.2 How to use HOT KIMCHI.........................180
Phone KS20 ...................................182
PART LIST ..................................... 189
11.1 EXPLODED VIEW ................................ 189
<Mechanic component> ....................... 191
<Main component> ............................... 193
11.3 Accessory ............................................. 209
LGE Internal Use Only

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  • Page 1: Table Of Contents

    4.9 Checking WLAN Block......104 11.3 Accessory ..........209 4.10 Power ON Troubleshooting ....108 4.11 Charger Troubleshooting .......110 4.12 USB Troubleshooting......113 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...
  • Page 2 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 4 - Only for training and service purposes...

  • Page 3: 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 © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 5 -...
  • Page 4 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 6 - Only for training and service purposes...

  • Page 5: Performance

    Earphone Jack Yes (18 pin) Connectivity Bluetooth, USB Volume Key Push Type(+, -) External Memory I/O Connect 18 Pin Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...

  • Page 6: Usable Environment

    * In case of DCS : [A] -> 1710, [B] -> 1785 * In case of PCS : [A] -> 1850, [B] -> 1910 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 8 - Only for training and service purposes...
  • Page 7 * In case of DCS : [A] -> 1710, [B] -> 1785 * In case of PCS : [A] -> 1850, [B] -> 1910 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 -...
  • Page 8 ±4 ±3 ±4 ±5 ±4 ±5 ±4 ±5 ±4 ±5 ±5 ±5 Burst timing Mask IN Mask IN LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...
  • Page 9 Power setting in uplink compressed ±3dB(after 14slots transmission gap) Occupied Bandwidth(OBW) 5MHz(99%) -35-15*(∆f-2.5)dBc@∆f=2.5~3.5MHz,30k -35-1*(∆f-3.5)dBc@∆f=3.5~7.5MHz,1M Spectrum emission Mask -39-10*(∆f-7.5)dBc@∆f=7.5~8.5MHz,1M -49dBc@∆f=8.5~12.5MHz,1M Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes...
  • Page 10 Wanted Signal :-101dBm Wanted Signal :-101dBm (TCH/FS Class II, RBER) Unwanted : Depend on Frequency Unwanted : Depend on Frequency LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...
  • Page 11 -46dBm/3.84MHz@20MHz UE@+20dBm output power(Class3) -57dBm@f=9KHz~1GHz, 100K BW Spurious Emissions -47dBm@f=1~12.5GHz, 1M BW -60dBm@f=1920MHz~1980MHz, 3.84M BW -60dBm@f=2110MHz~2170MHz, 3.84M BW Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...

  • Page 12: Current Consumption

    -102 ± 2 dBm -101 ± 2 dBm BAR 1 → 0 -112 ± 2 dBm -106 ± 2 dBm LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...

  • Page 13: Battery Bar

    Bar 2 → 1 Bar 1 → Empty Low Voltage, Warning message+ Blinking Power Off 3.20 ± 0.05V / 0% Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 15 - Only for training and service purposes...

  • Page 14: Sound Pressure Level

    • Full charging indication current (charging icon stop current) : 60 mA • Cut-off voltage : 3.20 V LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...

  • Page 15: Technical Brief

    3. TECHNICAL BRIEF 3. TECHNICAL BRIEF 3.1 General Description The KS20 supports UMTS-2100, GSM-900, DCS-1800, and PCS-1900 based GSM/GPRS/EDGE/UMTS. All receivers and the UMTS transmitter use the radioOne Zero-IF architecture to eliminate intermediate frequencies, directly converting signals between RF and baseband. The quad-band GSM transmitters use a baseband-to-IF upconversion followed by an offset phase-locked loop that translates the GMSK-modulated or 8-PSK-modulated signal to RF.
  • Page 16 3. TECHNICAL BRIEF A generic, high-level functional block diagram of KS20 is shown in Figure 1-1. 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 17: Gsm Mode

    DCS and PCS). The antenna switch module allows multiple operating bands and modes to share the same antenna. In KS20, a common antenna connects to one of six paths: 1) UMTS-2100 Rx/Tx, 2) GSM-900 Rx, 3) GSM-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 18 DC offset corrections. The filter outputs are buffered and passed on to the MSM7200 IC for further processing (an interface shared with the RFR6275 UMTS receiver outputs LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...
  • Page 19 3. TECHNICAL BRIEF [Fig 1.2] RTR6275 RX feature Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 - Only for training and service purposes...

  • Page 20: Gsm Transmitter

    PA and appear in the GSM Rx band LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...

  • Page 21: Umts Mode

    FRF. The RTR6275 IC is able to support UMTS 2100/1900 and UMTS 850 mode transmitting. This design guideline shows only UMTS 2100 applications. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 -...
  • Page 22 3. TECHNICAL BRIEF WCDMA_2100_TX WCDMA_2100_RX [Figure 1.4] RTR6275 IC functional block diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...

  • Page 23: Lo Generation And Distribution Circuits

    As close as possible EFCH1950TDF1 WCDMA_PA_R0 R518 WCDMA_PA_ON R519 PWR_DET R520 R521 10dB [Figure 1.5] WCDMA PAM, Duplexer, Coupler Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...
  • Page 24 GSM 900 RX GSM 1800 RX GSM 1900 RX HIGH WCDMA HIGH HIGH [Table 1.2] Front End Module control logic LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...
  • Page 25 • Integrated handset-level user interfaces - Four programmable current sinks recommended as keypad backlight, LCD backlight, camera flash, and general-purpose drivers Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 - Only for training and service purposes...
  • Page 26 • Highly integrated functionality in a small package - 137-pin CSP with a several center ground pins for electrical ground, mechanical stability, and thermal relief [Figure 1.6] MSM7200 Interface LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...
  • Page 27 3. TECHNICAL BRIEF [Figure1.7] PM7540 Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...
  • Page 28 GSM_TX EFCH897MTDB1 6.8nH SFSY0030201 R515 R516 GND2 GSM_IN L514 12nH 3 dB [Figure 1. 8] GSM PAM Schematic LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 30 - 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 KS20 typical losses : UMTS2100_ Tx = 1.28 dB, UMTS2100_ Rx = 1.46 dB •...
  • Page 30 - Other frequencies of particular concern . bands known to include other wireless transmitters that may deliver significant power levels to the receiver input. [Table 1.3] WCDMA Rx SAW Filter Specification LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...
  • Page 31 The bluetooth components are an bluetooth module and Antenna. Figure1.5.12-1 shows the bluetooth system architecture in the KS20. [Figure1.9] Bluetooth system architecture Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...
  • Page 32 The MSM7200 supports SDIO interface which can be used for WLAN baseband data communication with a WLAN module. Because WLAN module includes RF components, the RF parts for KS20 WLAN include only WLAN module and an antenna. Figure 1.10 shows KS20 WLAN system architecture.

  • Page 33: Only For Training And Service Purposes

    - PS data rates supporting 384kbps DL / 384kbps UL - CS data rates supporting 64kbps DL / 64kbps UL - AMR (all rates) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 -...
  • Page 34 - Dual Memory Buses(EBI1-SDRAM & EBI2-NAND Flash) - External Memory Interface (Micro SD) • Data Communication - BlueTooth - Slave USB LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...

  • Page 35: Hardware Architecture

    Serial Port Serial Port Battery Battery PM7540 PM7540 1050mAh RTC Battery RTC Battery [Figure1.11] Simplified Block Diagram of System Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 - Only for training and service purposes...
  • Page 36 Speaker EVRC, QCELP AMR, CMX, MIDI Tx DAC 4 Bit PM7540 USIM [Figure1.12] Simplified Block Diagram of MSM7200 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...

  • Page 37: Subsystem(Msm7200)

    The RF interface communicates with the mobile station’s external RF and analog baseband circuits. Signals to these circuits control signal gain in the Rx and Tx signal path and maintain The system’s frequency reference. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 -...

  • Page 38: Wideband Codec

    Through a generic serial bus interface (SBI) the ARM926EJ-S configures and controls the functionality of the RTR6275 and PM7540 devices. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...
  • Page 39 The MSM7200 device integrates a universal serial bus (USB) controller that supports both unidirectional and bidirectional transceiver interfaces. The USB controller acts as a USB peripheral communicating with the USB host. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 41 -...

  • Page 40: Power Block

    Interrupt Manager for time-critical information. Another dedicated IC Interface circuit monitors multiple trigger events and controls the power-on sequence. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...
  • Page 41 3. TECHNICAL BRIEF [Figure1.13] PM7540 Functional Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 - Only for training and service purposes...
  • Page 42 Input Power Management 5~0 (%) 50~26 (%) 25~6 (%) 100~76 (%) 75~51 (%) KS20 Battery Bar Display(Stand By Condition) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...
  • Page 43 (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current PM7540 Input Power Managemen Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 45 - Only for training and service purposes...
  • Page 44 ¶U Charging time : Max 2.5h (Except time trickle charging) ¶U Full charge indication current (icon stop current) : 60mA ¶U Cut-off voltage : 3.20V LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...

  • Page 45: External Memory Interface

    NAND 45 ns 200 us KAL009001M-D1YY SDRAM 7.5 ns 7.5 ns [Table 1.4] External memory interface for KS20 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...
  • Page 46 MSM7200 NAND_ALE RAS* (256MB) CLK_EN NAND_READY (128MB) CLK[0:1] DATA[7:0] DQM[3:0] DQS[3:0] [Figure1.14] Simplified Block Diagram of Memory Interface LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...

  • Page 47: H/W Sub System

    • TX_AGC_ADJ : control the gain of the Tx signal prior to the power amplifier • DAC_REF : Reference input to the MSM Tx data DACs [Figure1.15] Block Diagram of RF Interface Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 -...
  • Page 48 • GSM_PA_RAMP : Power Amp Gain Control of APC_IC • GSM_PA_EN : Power Amp Gain Control Enable of APC_IC LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...

  • Page 49: Msm Sub System

    UART signals are connected to MSM GPIO through IO connector with 115200 bps speed. GPIO_Map Name Note GPIO_86 UART3_RX Data_Rx GPIO_87 UART3_TX Data_Tx [Table 1.5] UART Interface Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
  • Page 50 [Table 1.6] USB Signal Interface nUSB_OE1 VUSB_5.0V MSM_USB1_VM CRADLE_USB_DP PM7540 Conn. MSM7200 MSM_USB1_VP (18p) CRADLE_USB_DN [Figure1.17] USB block(MSM7200 Side & PM7540 Side) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...

  • Page 51: Key Pad

    Button’ Key is connected to PMIC(PM7540:GPIO83). [Table 1.7] Key Matrix Mapping Table Power Button KB105 KPDPWR_ON [Figure1.18] Power Button Keypad circuit Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...
  • Page 52 PRSB6.8C PRSB6.8C [Figure1.19] Main Keypad Circuit Camera Button KPD_COLUMN2 KPD_ROW1 KPD_ROW2 SW100 LS50D23 ESCY0004201 [Figure1.20] Camera Keypad Circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...

  • Page 53: End Button

    [Figure1.21] END Keypad Circuit 5-Way Key KPD_ROW0 COM1 KPD_COLUMN0 KPD_ROW1 KPD_ROW2 KPD_ROW3 KPD_ROW4 SW102 EVQQ7GA50 ESCY0004001 [Figure1.22] 5-Way Keypad Circuit Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...
  • Page 54 3. TECHNICAL BRIEF 3.11.4. Touch Interface In KS20, 4-wire touch screen panel is used for user input method. Two resistive layers make up a 4- wire touch screen panel and are separated by insulating dots. The inside surface of each layer is coated with a transparent metal oxide coating that generates a gradient across each layer when voltage is applied.

  • Page 55: Camera Interface

    KS20 Installed a 2M Pixel with auto focus and 0.3M Pixel Camera. The CAM-FPCB with 34pin Board to Board connector (AXK7L34227G) is connected to MSM7200. Its interface is dedicated camera interface port in MSM7200. The following figure is KS20 camera block diagram.
  • Page 56 CAM_VGA_PWDN CAM_DATA5 I2C_SDA CAM_DATA4 I2C_SCL CAM_DATA3 CAM_DATA2 CAM_DATA1 CAM_DATA0 CAM_MCLK VCAM2_2.6V CAM_VSYNC VCAM3_2.6V CAM_HSYNC [Figure1.24] Camera FPCB circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...
  • Page 57 VCAM_1.8V REFBP LDO2 EUSY0263101 C720 C721 C722 0.01u 2.2u 2.2u [Figure1.25] Camera module I/F and Camera LDO circuit Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 59 - Only for training and service purposes...
  • Page 58 Data 2M_CAM_CVDD_1.8V CVDD1 2M_CAM_CVDD_1.8V CVDD2 2M_CAM_AVDD_2.6V AVDD1 2M_CAM_AVDD_2.6V AVDD2 [Table 1.11] Interface of 2 MEGA AF Camera Module LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...
  • Page 59 Camera reset signal VREG_MSMP_2.6V Camera I/O Power VREG_CAM_2.6V Camera I/O Power [Table 1.12] Interface of VGA Camera Module Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...
  • Page 60 KEBY_BACKLIGHT line from MSM7200 GPIO78/84/85. LED Notification-RGB VPWR LEMC-S11G LD100 BLUE LEDCB1 LEDCR1 GREEN LEDCG1 [Figure1.27] Schematic of KEY back light circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
  • Page 61 LCD_RESET FLM(VSYNC) FLM(VSYNC) LCD_PWR_ON BLIGHT Charge Pump BL_PWR_ON LED(AN) BL_PWR_ON BL PWR LED(CA) [Figure1.28] LCD Module Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...
  • Page 62 REFBP LDO2 EUSY0263101 C720 C721 C722 0.01u 2.2u 2.2u [Figure1.29] Display/ LCD FPCB I/F and LCD BL circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...

  • Page 63: Audio And Sound

    (U402) Analog MSM7200 switch (U100-1) (U400) Receiver and Loud Speaker (U401) Head_set MIC [Figure1.30] Audio Path Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...
  • Page 64 The CODEC interface is shown in more detail in Figure below. [Figure1.31] Audio Interface Detailed Diagram(MSM7200) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...
  • Page 65 FB301 R305 USC2 R306 USC1 nEAR_DET VBAT REMOTE_PWR_ON VADP_5.0V VUSB_5.0V CRADLE_UART_TX CRADLE_UART_RX HSEJ-18S04-25 ENRY0006001 D307 SD12T1G D306 PLR0504F Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...
  • Page 66 C403 R403 LINE_OP BYPASS TP400 nSPEAKER_SHDN SD_SEL SD_MODE VPWR U400 FSA2267AL10X MODEM_RCV_P SPKR_N AMP_OUT_N nRECEIVER_SW MODEM_RCV_N AMP_OUT_P SPKR_P LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...
  • Page 67 Speaker MIDI Bell MIDI Headset Headset MIDI Bell Loud Mode Speaker MP3 Headset Headset MP3 [Table 1.13] Audio Mode Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 69 - Only for training and service purposes...
  • Page 68 Voice + MP3 + MIDI Voice Call Receiver Mode is routed as below MSM7200 EAR1ON,EAR1OP -> Analog Switch( U400) -> Receiver LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...
  • Page 69 Voice + MP3 + MIDI Voice Call Headset Mode is routed as below MSM7200 HPH_L, HPH_R -> 18Pin MMI -> Headset Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...
  • Page 70 Voice Call Speaker Phone Mode is routed as below MSM7200 LINE_ON, LINE_OP -> AMP(U401) ->Analog Switch( U400 ) -> Loud speaker LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...
  • Page 71 Voice + MP3 + MIDI MIDI Ring Tone/MP3 Mode is routed as below MSM7200 HPH_L -> AMP(U401) -> Loud speaker Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...
  • Page 72 Voice + MP3 + MIDI MIDI Ring Tone/MP3 Headset Mode is routed as below MSM7200 HPH_L, HPH_R -> 18PIn MMI ->Headset LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...
  • Page 73 CN100 OSF213-42DC -42 dB microphone MMI Conn CN300 HSEJ-18S04-25R 18Pin MMI Connector [Table 1.14] Audio main component list Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...

  • Page 74: Main Features

    - Internal User Memory over 128MB - 1050 mAh (Li-Ion Polymer) - Windows MobileTM 6 Professional - Microsoft Office Mobile LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...
  • Page 75 PMIC BB/MEM/Logic Main board, Top Main board, Bottom SD/SIM WLAN Logic Socket Sub board, Bottom Sub board, Top Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 77 - Only for training and service purposes...
  • Page 76 3. TECHNICAL BRIEF Folder Assy, Bottom KEY-FPCB/Folder Assy, Top CAM-FPCB LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...
  • Page 77 Bluetooth RF Transceiver FL504 UMTS 2100 TX SAW Filter FL501 UMTS2100 RX SAW filter U501 TX Dual PAM Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...
  • Page 78 U402 Audio, Headset Amp U100 MCU, MSM7200 U400 Audio Sig. Switch CN301 Battery Connector U401 Audio, Speaker Amp LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...
  • Page 79 CAM FPCB to Sub F1_CN103 SW101 WLAN Cable connector board connector(34p) CN101 Touch connector(6p) CN100 ANT100 WLAN Antenna Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...

  • Page 80: Trouble Shooting

    4. TROUBLE SHOOTING 4. TROUBLE SHOOTING 4.1 RF Component TOP SIDE LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...

  • Page 81: Bottom Side

    4. TROUBLE SHOOTING BOTTOM SIDE Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...
  • Page 82 4. TROUBLE SHOOTING LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...

  • Page 83: Signal Path_Umts Rf

    UMTS 2100 Tx/Rx ➞ UMTS 2100 Tx ➞ UMTS 2100 Rx ➞ Tx I/Q ➞ ➞ Rx I/Q Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...

  • Page 84: Signal Path_Gsm Rf

    ➞ DCS/PCS Tx ➞ DCS Rx ➞ PCS Rx ➞ EGSM900 Rx ➞ Tx I/Q ➞ ➞ Rx I/Q LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...

  • Page 85: Checking Vctcxo Block

    0.01u 19.2MHz 1000p C552 TCXO_RTR_19.2MHz EXSK0007802 TG-5010LH_19_2M_75A Schematic of the TCXO Block Test Point of the TCXO Block Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...
  • Page 86 4. TROUBLE SHOOTING Check C355 of PMIC (U304) Check R112 of MSM (U100) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...

  • Page 87: Checking Front-End Module Block

    EGSM_RX1 SFAY0010001 Schematic of the Front-End Module Block ANT_SEL0 ANT_SEL1 ANT_SEL2 Test Point of the Front-End Module Block Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...
  • Page 88 GSM 850 RX GSM 900 RX GSM 1800 RX GSM 1900 RX HIGH WCDMA HIGH HIGH Check VCC TP1 VRF_SMPS LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...

  • Page 89: Checking Umts Block

    EFCH WCDMA_PA_R0 R518 WCDMA_PA_ON R519 PWR_DET R520 R521 10dB For testing, Max power of UMT 2100 is needed. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 91 - Only for training and service purposes...
  • Page 90 Check coupler U103 U502 Check Tx SAW Check Duplexer Filter FL104 FL503 Check FEM FL100 FL500 Check PAM block LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...
  • Page 91 3. +VPWR: UMTS PAM Main Voltage (3V < +VPWR < 4.2V) 4. PA_ON : Turns the PA on and off 5. PA_R0 : Control signals that step the active PA mode and bias Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 -...
  • Page 92 1.5p C565 L523 20dB C566 100p 100p As close as possible WCDMA_PA_R R518 WCDMA_PA_O R519 PWR_DET R520 R521 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...
  • Page 93 Signal exist? Check the Duplexer Check TP3 FL104 Signal exist? FL503 Check TP4 Check the RTR6275 Signal exist? Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...

  • Page 94: Checking Gsm Block

    4. TROUBLE SHOOTING 4.7 Checking GSM Block LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...

  • Page 95: Checking Rf Tx Level

    L512 2.2nH TX_EN U501 TQM7M5008 GND4 VBATT GND3 GND1 L513 C541 GSM_OUT VRAMP 6.8nH GND2 GSM_IN L514 12nH Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
  • Page 96 4. TROUBLE SHOOTING 4.7.3 Checking RF Tx level LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...

  • Page 97: Checking Pam Block

    U501 TQM7M5008 GND4 VBATT GND3 GND1 L513 C541 FL501 GSM_OUT VRAMP EFCH897MTDB1 6.8nH SFSY0030201 GND2 GSM_IN L514 12nH Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 99 - Only for training and service purposes...

  • Page 98: Checking Rf Rx Block

    DCS_PCS_TX L509 27nH EGSM_TX UMTS_TX_RX L510 GSM(925-960 MHz) DCS_RX2 33nH DCS_RX1 PCS_RX2 L511 27nH PCS_RX1 EGSM_RX2 EGSM_RX1 010001 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...
  • Page 99 4. TROUBLE SHOOTING Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 - Only for training and service purposes...

  • Page 100: Checking Bluetooth Block

    4.8 Checking Bluetooth Block Test Point of the Bluetooth Block TP1. VBT_2.6V TP2. VBT_CORE_2.6V TP3. TCXO_BT TP4. BT ANT Output Bottom LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...
  • Page 101 BT_PCM_SYNC A_GPIO1 VDDFM5 TP405 BT_PCM_CLK A_GPIO0 VDDO33_1 VBT_2.6V VDDO33_2 R408 RST_N VDDO33_3 VBT_2.6V C426 0.1u nBT_RESET D400 PG05DBTFC Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...
  • Page 102 Change th Main board Signals exits? Change the X400 Is clock ok? 26MHz Change the U403 Signals exits? Change the Main LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...

  • Page 103: Checking Wlan Block

    32.768 kHz sleep clock starts to operate -> WLAN power goes to high -> WLAN module scans access points for network access, for which RF parts in the module start to operate -> After association process to the wireless network in the KS20 set, users can use Wireless LAN. Start...
  • Page 104 [ WLAN part 1 ( Key FPCB Front ) ] WLAN RF Switch [ WLAN part 3 ( Sub Board Bottom ) ] LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 106 - Only for training and service purposes...
  • Page 105 C 611 (3.3V) C 610 ( 1.8V) C 613 (2.6V) [ WLAN part 5 ( Sub Board Bottom ) ] Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...
  • Page 106 [ WLAN part 6 ( Sub Board Top ) ] Waveform - R632 (32.768kHz sleep clock measurement point) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...

  • Page 107: Power On Troubleshooting

    X300 : 32.768Khz Check an U100 SMT status by X-ray Exchange U100 or Change the Main board And Retest Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 109 - Only for training and service purposes...
  • Page 108 4. TROUBLE SHOOTING Waveform : R314, 19.2MHz X300, 32.768Khz Waveform : LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...
  • Page 109 VMSMA_2.6V VTCXO_2.85V R314 : 19.2Mhz VMSMP_2.6V X300 : 32.768Khz VMSMC1_1.2V VMSMC1_1.2V VMSME_1.8V [ KS20 Main PCB Bottom ] Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...

  • Page 110: Charger Troubleshooting

    - Check the OVP Circuit - Charging current path - Check the charging current Path - Battery - Check the battery LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...
  • Page 111 Check an U100 SMT status by X-ray Exchange U100 or Change the Main board And Retest [ Charger Troubleshooting Flow ] Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...
  • Page 112 4. TROUBLE SHOOTING R304 U302 U300 [ Charging part ( Main PCB Front ) ] LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...

  • Page 113: Usb Troubleshooting

    4. TROUBLE SHOOTING 4.12 USB Troubleshooting USB Initial sequence of KS20 is : USB connected to KS20 power on → VBUS_5.0V(Q400) go to 5V → MSM7200 48M PLL work → USB_DAT is triggered → USB_CTL_N go to 0V → USB work. Start...
  • Page 114 SOURCE DRAIN VBAT ISNS_M C320 VPWR C305 C304 0.01u [ USB part 2 ( Main PCB ) ] LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...

  • Page 115: Sim Detect Troubleshooting

    Work well? VRUIM_3.0V is 2.85V? Check CN400 SIM_CLK is run? Change SIM card Work well? Change the Sub board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...
  • Page 116 PLR0504F R701 D701 C701 0.1u D702 C702 C703 C704 PLR0504F S700 ENSY0018601 49448-1611 D706 Figure .USIM part schematics LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...

  • Page 117: Camera Troubleshooting

    Camera is OK Check an U100 SMT status by X-ray Exchange U100 or Change the Main board And Retest Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - Only for training and service purposes...

  • Page 118: Vga Camera

    Camera is OK Check an U100 SMT status by X-ray Exchange U100 or Change the Main board And Retest LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...
  • Page 119 ENLDO BLED3 BLED4 FLED SETM SETF VCAM_2.6V LDO1 VCAM_1.8V REFBP LDO2 EUSY0263101 C720 C721 C722 0.01u 2.2u 2.2u Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 121 - Only for training and service purposes...

  • Page 120: Keypad Backlight Troubleshooting

    SSC-TWH104-HLS 100ohm R101 LD102 KPD_DRV_N SSC-TWH104-HLS 100ohm R102 LD103 SSC-TWH104-HLS VPWR 100ohm R103 LD104 SSC-TWH104-HLS D107 PRSB6.8C KPD_DRV_N LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...

  • Page 121: Main Lcd Troubleshooting

    Change the LCD module LCD display OK? Change the Main board LCD display OK? Change the LCD FPCB Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...

  • Page 122: Receiver Path

    Pin 4, 1 CN400? Check an U100 SMT status by X-ray Exchange U100 or Change the Main board And Retest LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 124 - Only for training and service purposes...
  • Page 123 4. TROUBLE SHOOTING R103, R104 Analog Switch Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 125 - Only for training and service purposes...

  • Page 124: Headset Path

    Change the Headset FB301/FB300? Check an U100 SMT status by X-ray Exchange U100 or Change the Main board And Retest LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 126 - Only for training and service purposes...
  • Page 125 4. TROUBLE SHOOTING FB300 FB301 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 127 - Only for training and service purposes...

  • Page 126: Speaker Phone Path

    Pin 4, 1 CN400? Check an U100 SMT status by X-ray Exchange U100 or Change the Main board And Retest LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
  • Page 127 4. TROUBLE SHOOTING Analog Speaker Amplifier Switch Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 129 - Only for training and service purposes...

  • Page 128: Main Microphone

    Make sound to MIC Sine wave appears at Change the MIC C106? Change the Main board Work well? LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 130 - Only for training and service purposes...
  • Page 129 4. TROUBLE SHOOTING R102 C106 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 131 - Only for training and service purposes...

  • Page 130: Headset Microphone

    Change MAIN board by 2.6V? (R301) Change the headset or Sine wave appears at Main board and retry. C105 ? LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 132 - Only for training and service purposes...
  • Page 131 4. TROUBLE SHOOTING MIC Input R301 nEAR_DET C105 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 133 - Only for training and service purposes...

  • Page 132: Vibrator

    1.2 to 3.1 V in 100-mV increments. VPWR L700 CN700 68nH KDS160E D700 VIB_DRV_ON L701 68nH C700 ENEY0003801 24-8000-002-000-829 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 134 - Only for training and service purposes...
  • Page 133 4. TROUBLE SHOOTING CN700, Vibrator Waveform : Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 135 - Only for training and service purposes...

  • Page 134: Download

    Windows 2000/XP where the LG KS20 USB modem driver (Ver 1.0 or later) is installed. Additionally, LGMDP allows multi downloading up to 9 handsets at the same time. * KS20 does NOT use LG USB driver but LG KS20 USB driver. LG KS20 USB driver is used only for KS20.
  • Page 135 Check if LGMDP always appears at the top of the window so that user can monitor it all the time. ➢ Automatically run Select Port When LGMDP starts When LGMDP starts, it will automatically select Select Port button to download new image file. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 137 -...

  • Page 136: Connecting To Pc

    PC to the handset, a progressive bar (Red box) indicating the degree of transmission of data is displayed. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 138 - Only for training and service purposes...
  • Page 137 Display Information is defaultly not selected. 6) Clear: Clearing all directory paths of images in the dialog. 7) Start: Starting downloading the selected individual image. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 139 -...
  • Page 138 The folder name indicates the path where the image files are located.) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 140 - Only for training and service purposes...
  • Page 139 In case of wrong AMSS Modem file is file is selected, the phone may not work. (The file name shall be different from that of the file name in the snapshot.) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
  • Page 140 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 © 2007 LG Electronics. Inc. All right reserved. - 142 - Only for training and service purposes...
  • Page 141 • Rebooting the handset and re-establishing the connection. The handset will go emergency mode. • Downloading the all images. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 143 - Only for training and service purposes...
  • Page 142 Backing up process. User can also restore NV data using NV Default image selection. • Downloading process has completed successfully. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 144 - Only for training and service purposes...

  • Page 143: Troubleshooting Download Errors

    1) When the phone does not work after downloading has been completed. 5.1.3.1 When the phone does not work • Reboot the phone in the emergency mode (Turn off the KS20 and turn on wile pressing “SEND” + “Function” Key simultaneously) and then try to download all the images.
  • 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. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 146 - Only for training and service purposes...
  • Page 145 4) Recommended that the AMSS and Windows OS Image have to be downloaded at the same time. 5) Erase EFS option will erase everything (nv items, and some settings) in the EFS area. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 147 -...

  • Page 146: Block Diagram

    GSM/GPRS/EDGE JTAG Interface JTAG for Test IMT SAW 48.00 MHz(for USB) [Fig 2.1] KS20 RF Functional Block Diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 148 - Only for training and service purposes...
  • Page 147 6. BLOCK DIAGRAM [Table 2.1] RF Block Component Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 149 - Only for training and service purposes...

  • Page 148: Interface Diagram

    GSM/GPRS/EDGE JTAG Interface JTAG for Test IMT SAW 48.00 MHz(for USB) [Fig 2.2] RTR6275 & MSM7200 Interface Diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 150 - Only for training and service purposes...
  • Page 149 GSM_PA_RAMP Power Amp Gain Control UMTS, GSM900Tx/Rx, ANT_SEL 0,1,2,3 Ant Switch Module Mode Selection DCS Tx/Rx, PCS Tx/Rx Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 151 - Only for training and service purposes...
  • Page 150 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 152 - Only for training and service purposes...

  • Page 151: Circuit Diagram

    I2C_SCL EBI1_DQ15 GPIO60 SDRAM_D14 I2C_SDA EBI1_DQ14 GPIO61 SDRAM_D13 EBI1_DQ13 SDRAM_D12 EBI1_DQ12 SDRAM_D11 EBI1_DQ11 LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 153 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 152 DNU6 DNU7 Near by U100 VMSME_1.8V_SENSE VMSME_1.8V VMSMC1_1.2V C220 VMSMA_2.6V VMSMC2_1.2V C223 C227 VMSMP_2.6V LG(42)-A-5505-10:01 LG Electronics Inc. - 154 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 153 KPD_DRV_N PON_RESET_N R316 PS_HOLD LCD_DRV_N PS_HOLD FLSH_DRV_N KDS114E JTAG_PS_HOLD R317 200K D311 PG05DBTFC LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 155 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 154 A_GPIO0 VDDO33_1 VBT_2.6V VDDO33_2 R408 RST_N VDDO33_3 VBT_2.6V C426 0.1u nBT_RESET D400 PG05DBTFC LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 156 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 155 As close as possible EFCH1950TDF1 WCDMA_PA_R0 R518 WCDMA_PA_ON R519 PWR_DET R520 R521 10dB LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 157 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 156 VMSMP_2.6V Q603 KTK5132E WLAN_PWD VWLAN_2.6V X600 SG-3030LC-32.768 32KHZ_ON WLAN_32KHZ R653 BT_32KHZ 32.768MHz OJ600 LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 158 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 157 C721 C722 U703 R1114D181D 0.01u 2.2u 2.2u VOUT GND1 LCD_PWR_ON GND2 C723 C724 LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 159 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 158 PRSB6.8C PRSB6.8C ENWY0005601 KPD_ROW2 KPD_ROW3 KPD_ROW4 SW102 EVQQ7GA50 ESCY0004001 Power Button KB105 KPDPWR_ON LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 160 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 159 CAM_DATA0 CAM_MCLK CAM_MCLK VCAM2_2.6V CAM_VSYNC VCAM2_2.6V VCAM3_2.6V CAM_HSYNC CAM_VSYNC VCAM3_2.6V CAM_HSYNC ENBY0015601 AXK7L34227G LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 161 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 160 - 162 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 161: Bga Ic Pin Map

    8. BGA IC PIN MAP 8.1 MSM7200 (EUSY0318901) : U101-1, U101-2 Fig.1 MSM7200 Pin Function Map (Top View) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 163 - Only for training and service purposes...
  • Page 162 MSM7200 (EUSY0318901) : U101-1, U101-2 : Us ed : Not us ed Fig.2 MSM7200 Pin Map (Bottom View) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 164 - Only for training and service purposes...
  • Page 163 8.2 KAL009001M-D1YY (EUSY0316502) : U201 : Us ed : Us ed : Not us ed Fig.3 KAL009001M Pin Map (Top View) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 165 - Only for training and service purposes...
  • Page 164 8. BGA IC PIN MAP 8.3 PM7540 (EUSY0342201) : U304 Fig.4 PM7540 Pin Function Map (Top View) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 166 - Only for training and service purposes...
  • Page 165 8. BGA IC PIN MAP PM7540 (EUSY0342201) : U304 : Us ed : Not us ed Fig.5 PM7540 Pin Map (Bottom View) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 167 - Only for training and service purposes...
  • Page 166 8. BGA IC PIN MAP 8.4 BCM2048SKUFBG (EUSY0319601) : U403 : Not us ed : Used Fig.4 BCM2048 Pin Map (Bottom View) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 168 - Only for training and service purposes...

  • Page 167: Pcb Layout

    (UMTS/GSMTransceiver) Vibrator Functions Can’t make a call Low Tx Power Low Rx Sensitivity No Service CN301 No Boot - 169 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 168 No USB Function No TA/USB Charging U302 U301 No TA Charging No UART Function No Bluetooth Power On - 170 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 169 U702 No Touch/Camera No Camera On Shutter/LED/SEND/ No Backlight/Flash On END/Power/Jog Key Functions X600 Can’t make WLAN/Bluetooth Sleep - 171 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 170 CN602 No LCD/Camera/WLAN/ CN702 Touch/Key/Speaker/ No Display Vibrator Functions CN603 Low WLAN Tx Power Low WLAN Rx Sensitivity - 172 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 171 9. PCB LAYOUT CN101 No VGA Camera Function CN102 No 2M AF Camera Function CN103 No 2M/VGA Camera Functions - 173 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 172 Tx Power CN101 Low WLAN Rx Sensitivity No Touch Function ANT100 Low WLAN Tx Power Low WLAN Rx Sensitivity - 174 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 173 9. PCB LAYOUT - 175 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 174 - 176 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 175: Calibration & Rf Auto Test Program (Hot Kimchi)

    Diag_NV.dll At_Serial_Cmd.xml Diag_Common.dll DLL_E5515CD.DLL DLL_PwrControlD.dll Dll_SerialATD.dll LG_CL_019.dll PwrSupply_Cmd.xml Debug Auto KS20 KS20 CalAuto KS20 : Directory : File Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 177 - Only for training and service purposes...
  • Page 176 HK_33.exe ShieldBox_DllD.dll Model KS20 LG_NsTest_E5515C_241.dll AutoSetup_001.xml LG_RfTest_E5515C_108.dll Cal_Setup_Test.xml QMSL_MSVC6R.dll Ezlooks.xml LG_RfCal_Q3G6280TRev_100.dll NstProcedure_KS20_001.xml script_001.xml : Directory Spec_FullBand_013.xml : File LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 178 - Only for training and service purposes...
  • Page 177 MFCN42D.DLL MFCO42D.DLL MSVCP60D.DLL MSVCRTD.DLL Vsflex7L.ocx vsflex7l_ocx_regist.bat Result Auto KS20 KS20 CalAuto KS20 LG_UI_Qu6275_004.dll Multi_HK.reg : Directory : File Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 179 - Only for training and service purposes...

  • Page 178: How To Use Hot Kimchi

    3. Select “LOGIC MODE” that you want - Logic Mode -> 1: Calibration Only 2: Auto Test Only 3: Calibration + Auto LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 180 - Only for training and service purposes...
  • Page 179 9. Calibration & RF Auto Test Program (Hot Kimchi) Click "Start" Select "KS20" * Procedure 4. Select the model name “KS20” 5. Click “Start” button Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 181 - Only for training and service purposes...
  • Page 180 10. Phone Test Mode _ 3G smart Phone KS20 10. Phone Test Mode _ 3G smart Phone KS20 1. Run Dialer, then insert “2676625720#” by tapping keypad 2. Tap 3. Device Test 3. Tap 6. Q_Test Program 4. Tap PTM(Phone Test Mode) Button.

  • Page 181: Phone Test Mode

    10. Phone Test Mode _ 3G smart Phone KS20 Phone Test Mode Scenario_ 3G smart Phone KS20(1) Item Order Description * Phone Test mode (1) Camera Test Internal Camera To start, press "Send" button Internal Camera Internal(Front) Recording Internal Camera Record for 3 seconds.
  • Page 182 10. Phone Test Mode _ 3G smart Phone KS20 Phone Test Mode Scenario_ 3G smart Phone KS20(2) Item Order Description External Camera (1) Camera Test Flash LED Always ON during External camera testing External Camera External(Rear) Camera Preview External(Rear) Recording &...
  • Page 183 10. Phone Test Mode _ 3G smart Phone KS20 Phone Test Mode Scenario_ 3G smart Phone KS20 Case(3) Item Order Description Test Creating/Writing/Deleting a file in /Storage card. (2) External Check On if Pass, move next test automatically. Memory Break if not, the test is stopped.
  • Page 184 10. Phone Test Mode _ 3G smart Phone KS20 Phone Test Mode Scenario_ 3G smart Phone KS20 Case(4) Item Order Description (5) Vibrator Test Vibrator On Break Vibrating by pressing "Send" Key Vibrator Off LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved.
  • Page 185 10. Phone Test Mode _ 3G smart Phone KS20 Phone Test Mode Scenario_ 3G smart Phone KS20 Case(5) Item Order Description (6) Key Press Test - Press a key that Red arrow indicate (7) Acoustic Loop 1. Enable Handset acoustic loop Test Test 2.
  • Page 186 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 188 - Only for training and service purposes...
  • Page 187 11. EXPLODED VIEW & REPLACEMENT PART LIST 11.1 EXPLODED VIEW MGAD0137801 52 53 48 50 18 71 70 46 69 49 51 35 - 189 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 188 ASS'Y EXPLODED VIEW - 190 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 189: Exploded View & Replacement Part List

    COMPLEX, (empty), , , , , Black MSDC00 SPRING,LOCKER MSDC0009201 Black MSIY00 SHAFT MSIY0001101 CUTTING, STS, , , , , Silver Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 191 - Only for training and service purposes...
  • Page 190 MWAC00 WINDOW,LCD MWAC0088503 COMPLEX, (empty), , , , , Black WLAN Module(IEEE 802.11b/g, 12mm*10mm*1.2mm, M600 MODULE,ETC SMZY0015501 Atheros chip) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 192 - Only for training and service purposes...

  • Page 191: Main Component

    Snow White ,1608 ,R/TP ,color concept LD104 DIODE,LED,CHIP EDLH0012501 Snow White ,1608 ,R/TP ,color concept R100 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 193 - Only for training and service purposes...
  • Page 192 2.2 uH,M ,2.5x2.0x1.0 ,R/TP ,chip MLCI ,; , ,20% , , , , , L600 INDUCTOR,SMD,POWER ELCP0010001 ,NON SHIELD ,2.5X2X1MM ,[empty] ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 194 - Only for training and service purposes...
  • Page 193 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C625 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 195 - Only for training and service purposes...
  • Page 194 D707 DIODE,TVS EDTY0008501 TFSC ,5 V,50 W,R/TP ,small size D708 DIODE,TVS EDTY0008501 TFSC ,5 V,50 W,R/TP ,small size LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 196 - Only for training and service purposes...
  • Page 195 6800 ohm,1/16W ,J ,1005 ,R/TP R626 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP R635 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 197 - Only for training and service purposes...
  • Page 196 FR-4 ,0.8 mm,BUILD-UP 6 , ,; , , , , , , , , , SJMY00 VIBRATOR,MOTOR SJMY0008407 3 V,80 mA,10*2.7 ,17mm Elco8000 ,; ,3V , , ,12000 , , , , LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 198 - Only for training and service purposes...
  • Page 197 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C204 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C205 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 199 - Only for training and service purposes...
  • Page 198 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C322 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 200 - Only for training and service purposes...
  • Page 199 ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C358 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C360 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 201 - Only for training and service purposes...
  • Page 200 33 ohm,1/16W ,F ,1005 ,R/TP R105 RES,CHIP,MAKER ERHZ0000286 4700 ohm,1/16W ,F ,1005 ,R/TP R106 RES,CHIP,MAKER ERHZ0000243 2200 ohm,1/16W ,F ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 202 - Only for training and service purposes...
  • Page 201 WCSP ,16 PIN,R/TP ,80-mW Capless Stereo Headphone U402 EUSY0261501 Driver 32.768 KHz,20 PPM,12.5 pF,70 Kohm,SMD ,3.2*1.5*0.9 X300 X-TAL EXXY0018701 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 203 - Only for training and service purposes...
  • Page 202 ECCH0001002 180 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C512 CAP,CERAMIC,CHIP ECCH0000149 3.3 nF,50V,K,X7R,HD,1005,R/TP C513 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 204 - Only for training and service purposes...
  • Page 203 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C550 CAP,CERAMIC,CHIP ECCH0000196 0.75 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C551 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 205 - Only for training and service purposes...
  • Page 204 2140 MHz,1.4*1.1*0.62 ,SMD ,2110M~2170M, IL 2.0, FL502 FILTER,SAW SFSY0031201 5pin, U-B, 50-100_10, WCDMA BAND I Rx ,; ,2140 ,1.4*1.1*0.62 ,SMD ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 206 - Only for training and service purposes...
  • Page 205 2200 ohm,1/16W ,J ,1005 ,R/TP R406 RES,CHIP,MAKER ERHZ0000222 150 Kohm,1/16W ,F ,1005 ,R/TP R420 RES,CHIP,MAKER ERHZ0000434 1 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 207 - Only for training and service purposes...
  • Page 206 X500 VCTCXO EXSK0007802 ,2.8V , , , , ,SMD ,P/TP ZD300 DIODE,TVS EDTY0008601 SOD-323 ,6 V,400 W,R/TP ,PB-FREE LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 208 - Only for training and service purposes...

  • Page 207: Accessory

    100-240V ,5060 Hz,4.8 V,0.9 A,CB & CE ,18pin plug ,; , , ADAPTOR,AC-DC SSAD0021009 , , , ,[empty] ,I/O CONNECTOR , Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 209 - Only for training and service purposes...
  • Page 208 Note...
  • Page 209 Note...

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