Page 1 Internal Use Only Service Manual KE990/KE990c Date: April, 2008 / Issue 1.0...
Page 2: Table Of Contents
4.8 Key sense trouble (KEYPAD) ....100 4.9 Keypad backlight trouble......102 4.10 Micro SD trouble ........104 4.11 Audio trouble........105 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...
Page 4: Introduction
The user may not make any changes and/or repairs expect as specifically noted in this manual. Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 5 -...
Page 5: Only For Training And Service Purposes
• When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 6 - Only for training and service purposes...
Page 6: Performance
Part Name Comment Digital Baseband Neptune (D761811BZVL): TI Analog Baseband Triton (TWL3029): TI RF Chip RTR6235 : Qualcomm Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...
Page 7: Hw Features
262K Color TFT (320 x 240) Backlight : White LED Built-in Camera 2M CMOS Camera (VGA) One button access Status Indicator None LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 8 - Only for training and service purposes...
Page 8: Only For Training And Service Purposes
Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Optional Data Cable Optional T-Flash Optional (External Memory) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 - Only for training and service purposes...
Page 9: Hw Spec
8 dBm 22 dBm 6 dBm 20 dBm 4 dBm 18 dBm 2 dBm 16 dBm 0 dBm LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...
Page 10: Only For Training And Service Purposes
6,000 Output RF Spectrum GSM, EGSM (due to switching transient) Offset from Carrier (kHz) Max. (dBm) 1,200 1,800 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes...
Page 11: Only For Training And Service Purposes
* Mean that Adopt a straight line in between 300 Hz and 1,000 Hz to be Max. level in the range. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...
Page 12: Only For Training And Service Purposes
-95 dBm ~ -91 dBm -100 dBm ~ -96 dBm -105 dBm ~ -101 dBm ~ -105 dBm Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...
Page 13: Only For Training And Service Purposes
Battery full charge voltage = 4.2 V Capacity: Min 930mAh Travel Charger Switching-mode charger Input: 100 ~ 240 V, 50/60Hz Out put: 5.1V, 700mA LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...
Page 14: Technical Brief
The antenna connects with receive and transmit paths through a FEM(Front End Module). QUALCOMM’s branded chipset that implements a Zero-IF radio architecture. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 15 -...
Page 15: Only For Training And Service Purposes
IC and higher-level handset functions. Key parameters such as under-voltage lockout and crystal oscillator signal presence are monitored to protect against detrimental conditions. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...
Page 16: Gsm Mode
Programming Interface (API) is used to implement SBI commands. The API is documented in AMSS Software - please see applicable AMSS Software documentation for details. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 17 -...
Page 17: Only For Training And Service Purposes
DC offset corrections. The filter outputs are buffered and passed on to the ESM6270 IC for further processing [Fig 3.2.2] RTR6235 RX feature LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 18 - Only for training and service purposes...
Page 18: Only For Training And Service Purposes
50ohm. The low-band GSM. Tx path also includes a Tx-band SAW filter to remove noise-spurious components and noise that would be amplified by the PA and appear in the GSM Rx band Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 19 -...
Page 19: Lo Generation And Distribution Circuits
With the integrated fractional-N PLL synthesizers, the RTR6235 has the advantages of more flexible loop bandwidth control, fast lock time, and low-integrated phase error LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...
Page 20: Off-Chip Rf Components
(GPIO[9] and GPIO[10]). These GPIOs are programmed to be ANT_SEL0 and ANT_SEL1 respectively. [Table 3.4.2] Front End Module control logic Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 - Only for training and service purposes...
Page 21: Only For Training And Service Purposes
- Low power mode available on ESMA and ESMP regulators - All regulated outputs are derived from a common bandgap reference - close tracking LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...
Page 22: Only For Training And Service Purposes
■ Highly integrated functionality in a small package - 84-pin BCCS with a large center slug for electrical ground, mechanical stability, and thermal relief Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 -...
Page 23: Only For Training And Service Purposes
3. TECHNICAL BRIEF [Figure 3.4.3] PM6635 Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...
Page 24: Only For Training And Service Purposes
GSM_TX C142 L113 R118 R119 5.6nH 5.6nH GSM_PA_BAND MODE 10dB GSM850/900 DCS/PCS HIGH [Figure 3.4.4] GSM PAM Schematic Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...
Page 25: Only For Training And Service Purposes
VR EG_M SM P VD D_M SM GND Part VD D_A VD D_BA T [Figure 3.4.5] Bluetooth system architecture LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...
Page 26: Only For Training And Service Purposes
To MMI MAX9722 BETE Aud io Cod ec HP_SPK _R/L WM8983 SPK _OUT+/- To SPEAK ER [Figure 3.4.6] Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 - Only for training and service purposes...
Page 27: Digital Baseband (Dbb/Esm6270)
■ Vocoder support (AMR, FR, EFR, HR) ■ Advanced 14 x 14 mm, 0.5 mm pitch, 409-pin lead-free CSP technology ■ SD/SDIO hardware support LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...
Page 28: Only For Training And Service Purposes
FM_ BUSEN VPWR From MMI FM_ ANT USB_OE_EN/DAT / SEO FM_ INTX Figure. Simplified Block Diagram of Baseband Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...
Page 29: Only For Training And Service Purposes
To WM 8983 XTAL _IN VAFL FREQIN SLEEP _CLK SLEEP _XTAL _IN Figure. Simplified Block Diagram of RF LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...
Page 30: Subsystem(Esm6270)
❏ CS schemes: CS1, CS2, CS3, and CS4 ❏ GEA1, GEA2, and GEA3 ciphering ■ Maximum of four Rx timeslots per frame Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...
Page 31: Only For Training And Service Purposes
❏ peripherals (EBI2) such as LCD panels ❏ 1.8 V or 2.6 V memory interface support (excluding EBI1) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...
Page 32: Only For Training And Service Purposes
■ Integrated stereo wideband Codec for music/digital clips ■ CMX ■ Video Codecs supported: MPEG-4, H.263, H.264, Windows Media® v9 and RealNetworks® v10 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...
Page 33: Only For Training And Service Purposes
■ Scalable Vector Graphics (SVG- Tiny 1.1 + SVG Tiny 1.2) ■ MLZ decoder ■ Integrated PNG/SAF A.T. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...
Page 34: Only For Training And Service Purposes
PM6635 devices can be configured for different operating modes and for minimum power consumption, extending battery life in Standby mode. The SSBI also controls DC baseband offset errors. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 -...
Page 35: Only For Training And Service Purposes
The ESM6270 device meets the intent of the ANSI/IEEE 1149.1A-1993 feature list. The JTAG interface can be used to test digital interconnects between devices within the mobile station during manufacture. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...
Page 36: Only For Training And Service Purposes
The ESM6270 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 © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 -...
Page 37: 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 © 2008 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...
Page 38: Only For Training And Service Purposes
3. TECHNICAL BRIEF Figure 3.7. PM6635 Functional Block Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 - Only for training and service purposes...
Page 39: Only For Training And Service Purposes
4.2V~3.81V 3.80V~3.71V 2~0 (%) 44~20 (%) 19~3 (%) 100~70 (%) 69~45 (%) KE990 Battery Bar Display(Stand By Condition) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...
Page 40: Only For Training And Service Purposes
VDD to pin (VBAT). Trickle charging can be used for lithium-ion and nickel-based batteries, with its performance specified below (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current PM6635 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 41 - Only for training and service purposes...
Page 41: Only For Training And Service Purposes
• Low battery alarm interval : Idle - 3 min, Dedicated - 1min • Cut-off voltage : 3.20V(idle), 3.1V(call) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...
Page 42: External Memory Interface
TYA000BC00DOGG Toshiba 50 ns 30 ns SDRAM TYA000BC00DOGG Toshiba 15 ns 15 ns Table 3.8. External memory interface Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 - Only for training and service purposes...
Page 43: Only For Training And Service Purposes
CAS* (256MB) (512M x 2) RAS* NAND_ALE CLK_EN NAND_READY DATA[15:0] DQM[3:0] Figure. Simplified Block Diagram of Memory Interface LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...
Page 44: H/W Sub System
BT_CLK BT_SBST_GPIO24 BT_SBST BT_SBCK_GPIO23 BT_SBCK BT_SBDT_GPIO22 BT_SBDT BT_TX_RX_N_GPIO21 BT_TX_RX_N BT_DATA_GPIO20 BT_DATA Figure. Schematic of RF Interface of ESM6270 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 45 - Only for training and service purposes...
Page 45: Only For Training And Service Purposes
• 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 © 2008 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...
Page 46: Only For Training And Service Purposes
UART signals are connected to ESM GPIO through IO connector with 115200 bps speed. GPIO_Map Name Note GPIO_96 UART_RXD Data_Rx GPIO_95 UART_TXD Data_Tx Table. UART Interface Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...
Page 47: Only For Training And Service Purposes
USB_DAT USB_DAT MSM_USB_D+ USB_D_P USB_SE0 USB_SE0 MSM_USB_D- USB_D_M GP1_DRV_N(MPP7) Figure. Schematic of USB block(ESM6270 Side & PM6635 Side) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...
Page 48: Only For Training And Service Purposes
Ear jack Detection for TTY HKADC4 PCB_Rev_ADC PCB Version Check HKADC5 Battery_THERM Battery Temperature Check Table. HKADC channel table Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...
Page 49: Only For Training And Service Purposes
Capture ROW(1) ROW(2) SEND Table. Key Matrix Mapping Table VREG_MSMP_2.7V SEND KEY_ROW[2] KEY_COL[0] KEY_COL[1] Figure. Main Keypad Circuit LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...
Page 50: Only For Training And Service Purposes
LOCK KEY CAMERA FOCUS KEY_ROW[1] KEY_COL[0] KEY_COL[1] Figure. Side Keypad Circuit PM_ON_SW_N ON_SW KEY Figure. END Keypad Circuit Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
Page 51: Only For Training And Service Purposes
5M_CAM_DATA[1] R607 R608 MMP_CAM_MCLK MMP_CAM_PCLK C610 C611 C612 C613 C614 0.1u Figure. Camera PCB Board to Board Connector LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...
Page 52: Only For Training And Service Purposes
System Clock Input Ground VDD_L(1.2V) Voltage Supply(DSP Core) Table. Interface between MEGA Camera Module and MAIN PCB (in camera module) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...
Page 53: Only For Training And Service Purposes
EBI2_WE_N MMP_LCD_WE_N Multimedi a TFT(WQVGA) EBI2_ADDR[11] MMP_LCD_ADS Chip EBI2_DATA[ 0:15] MMP_LCD_DATA[0:15] LCD_MAKER_ID LCD_IF_MODE Figure. LCD Module Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...
Page 54: Only For Training And Service Purposes
FL303 ICVE10184E150R500FR MMP_LCD_DATA[12] INOUT_A1 INOUT_B1 LCD_DATA[12] MMP_LCD_DATA[13] LCD_DATA[13] INOUT_A2 INOUT_B2 MMP_LCD_DATA[14] LCD_DATA[14] INOUT_A3 INOUT_B3 MMP_LCD_DATA[15] INOUT_A4 INOUT_B4 LCD_DATA[15] Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...
Page 55: Only For Training And Service Purposes
The microphone interface consists of two differential microphone inputs, one differential auxiliary input and a two-stage audio amplifier. Figure. Audio Interface Detailed Diagram(ESM6270) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...
Page 56: Only For Training And Service Purposes
3. TECHNICAL BRIEF ESM6270 Audio CODEC pins L200 100nH C200 Figure . Audio part schematics Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...
Page 57: Only For Training And Service Purposes
VIN+ HOOK_SENSE_N R905 EAR_MIC_P VIN- 5.1K C905 VREG_MSMP_2.7V Headset Hook Switch R907 0.1u Figure . Audio part schematics LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...
Page 58: Only For Training And Service Purposes
AUDIO DAC/ADC, AMP etc. (WM8983) L504 VREG_MSMP_2.7V 2.2uH CN500 FB504 FM_ANT EAR_MIC_P TV_OUT MIDI_EAR_L MIDI_EAR_R Figure . Audio part schematics Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 59 - Only for training and service purposes...
Page 59: Only For Training And Service Purposes
-42 dB microphone CAM MIC SPOB-413S42- -42 dB microphone RC3310BC Ear MIC HC-MQD-LG059 Ear MIC Table. Audio main component list LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...
Page 60: Feature List
• Audio stereo recorder player MP3/WMA • ID3 tags display • Spectral bars • Lyrics display • Equalizer • 3D Surround Audio Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...
Page 61: Only For Training And Service Purposes
- Black-level evaluation and correction - Defective pixel correction - Auto exposure and White-balance - Edge enhancement and auto focus. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
Page 62: Only For Training And Service Purposes
• Rotation and flip - 90, 180 and 270 degrees • Picture brightness, contrast, and saturation control • Display gamma adjustment • Color space reduction Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...
Page 63: Only For Training And Service Purposes
• USB 2.0 High speed/full speed • USB On The Go • USB applications: - USB mass storage - PictBridge - Webcam LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...
Page 64: Only For Training And Service Purposes
- Host can control display audio and peripherals via bypass Light sleep mode 500 µW - Specifically for GPS accurate off-line tracking Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...
Page 65: Only For Training And Service Purposes
• Media Flash (SmartMedia, NANDFlash, MMC or SD) to store media data (two active I/F, e.g. one NAND and one SD) • Connector to TV [ Figure 3.10 ] LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...
Page 66: Multimedia Chip Interface
EBI2_DATA[12] HD13 EBI2_DATA[13] HD14 EBI2_DATA[14] HD15 EBI2_DATA[15] NCSN EBI2_DATA[0:15] NALE NCLE [ Block Diagram ] [ Schematics ] Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...
Page 67: Only For Training And Service Purposes
• CMOS bayer 10,12,14,16 bit • YCbCr 8 bit • YCbCr 8 bit with pixel valid • YCbCr 16 bit LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...
Page 68: Only For Training And Service Purposes
TVDATA TVREF L300 TV_OUT 2.2uH 392ohm 1% C334 C335 330p 330p [ Block Diagram ] [ Schematics ] Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 69 - Only for training and service purposes...
Page 69: Only For Training And Service Purposes
In external audio configuration ZR3453X can run all the Audio/voice applications including conversation recording . [ Figure 3.11 ] LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...
Page 70: Only For Training And Service Purposes
C336 0.01u FSUSB30UMX U304 USB_SELECT_N HSD1+ MSM_USB_D+ HSD2+ MMP_USB_D+ USB_D+ MSM_USB_D- HSD1- MMP_USB_D- HSD2- USB_D- 3.11.8 MMC interface Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...
Page 71: Only For Training And Service Purposes
MMP_MICROSD_DATA[2] SDAT3 MMP_MICROSD_DATA[3] SCMD MMP_MICROSD_CMD R312 SCLK MMP_MICROSD_CLK VMCLK MMP_CAM_MCLK VPCLK MMP_CAM_PCLK VHREF MMP_CAM_HSYNC MMP_CAM_VSYNC 3.11.9 Power Domain LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...
Page 72: Touch Screen Interface
CONNECTOR TOUCH_I2C_SCL TOUCH_I2C_SCL Figure. Touch Screen Interface LCD_VDD_2.8V C700 C701 0.1u U700 TSC2007IYZGR TOUCH_I2C_SDA VDD_REF TOUCH_PENIRQ_N PENIRQ- TOUCH_I2C_SCL Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...
Page 73: Main Features
- FM Radio - touch screen, touch feedback - 103.5 x 54.4 x 14.8 mm - 1000mAh soft pack LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...
Page 74: Main Component
Touc h FPCB Bottom Touc h FPCB Top Sub Top Side Sub Botto m Side Intenna Strobe Flash Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...
Page 75: Only For Training And Service Purposes
Touch Screen Driver IC U601 U400 5M CAM LDO IC MicroSD Select ESM and MMP IC U602 U401 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...
Page 76: Only For Training And Service Purposes
27Mhz Crystal Oscillator ANT PAD Main Intenna Connection PAD U100 RTR6235 RF IC SW100 RF Switch J400 SIM Connector MIC500 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 77 - Only for training and service purposes...
Page 77: Only For Training And Service Purposes
Hall IC for Camera Cover Detection CN801 Main-Sub B-to-B Connector M800 Bluetooth Driver IC BAT900 Backup Battery U902 Headset Hook Switch IC LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...
Page 78: Only For Training And Service Purposes
Vibrator Vibrator PAD Main B-to-B Connector Receiver Receiver PAD CN101 (FPCB to Main PCB) CN102 Touch Window Connector Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...
Page 79: Only For Training And Service Purposes
CN602 Reference Description Reference Description 5M Camera Module Main PCB Connector CN601 CN602 Connector (FPCB to Main PCB) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...
Page 80: Trouble Shooting
GSM Transceiver (RTR) X100 VCTCXO(19.2MHz) FL100 Front-End-Module U101 GSM/EDGE PAM SW100 RF Antenna Connector FL101 GSM900 TX SAW Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...
Page 81: Main Component
GSM RX P ATH DCS/PCS TX P ATH PCS RX P ATH GSM TX P ATH DCS RX P ATH LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...
Page 82: Checking Vctcxo Block
1000p C148 8200p RTR6275_TCXO TCXO_BT U102 TC7SH04FS Schematic of the TCXO Block Test Point of the TCXO Blcok Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...
Page 83: Only For Training And Service Purposes
VCXO is OK s OK Check ot her part Check Check ot ot her part her part TCXO output waveform(19.2MHz) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
Page 84: Checking Front-End Module Block
GND7 GSM1800_1900_TX GND8 GSM850_900_TX LMSP43QA-538 FL100 Schematic of the Front-End Module Block Test Point of Front-End Module Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...
Page 85: Only For Training And Service Purposes
TP1 ( V c1) TP2 ( V c2) TP2 ( V c2) DCS1800/PCS1900 Tx DCS1800 / PCS1900 Rx LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...
Page 86: Only For Training And Service Purposes
ANT_SEL0, 1 High Level Check VDD 2.5V < Voltgae < 3.0V TP3 VREG_RF_SMPS Check the Logic in each m ode Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...
Page 87: Checking Gsm Block
3. Check RF Rx L evel 4. Re download SW & Cali br ation 4.5.1 Checking Front-End Module Refer to chapter 3.4 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
Page 88: Only For Training And Service Purposes
L112 GSM_OUT VRAMP 15nH GND2 GSM_IN C146 2.7p C142 L113 5.6nH 5.6nH Test Point of GSM Tx Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...
Page 89: Only For Training And Service Purposes
If pr oblem still exist , replace the PAM Pr oblem resolved ? GSM/DCS/PCS Tx is OK Change the Boa r d LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...
Page 90: Only For Training And Service Purposes
Power Amp Gain Control. Typically, 0.2 ~1.6V GSM_PA_EN Power Amp Enable (ON : >2.5V, OFF : <0.7V) +VPWR PAM Supply Voltage (Vcc > 3V) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 91 - Only for training and service purposes...
Page 91: Only For Training And Service Purposes
GND8 GSM850_900_TX 6.8nH L108 LMSP43QA-538 FL100 Schematic of GSM-900, DCS-1800, PCS-1900 Rx Block Test Point of Rx Block LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...
Page 92: Only For Training And Service Purposes
& Soldering of TPs GSM-900, DCS-1800, PCS- Rx still has problem ? 1900 Rx is OK Re-download & Cali br ation Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 - Only for training and service purposes...
Page 93: Power On Trouble
X100 : 19.2M Check the TXCO and SLEEP CRYSTAL X500 : 32.768Khz Chang e th e Main board LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...
Page 94: Only For Training And Service Purposes
4. TROUBLE SHOOTING VREG_TCXO_2.75V(C510) VREG_MSMA_2.6V(R508) VREG_MSMP_2.7V(R513) SLEEP CRYSTAL(32.768KHz) VREG_MSMC_1.2V(C560) VREG_MSME_1.8V(R520) TCXO ( 19.2MHz ) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...
Page 95: Only For Training And Service Purposes
4. TROUBLE SHOOTING RESET_IN_N(R208) PS_HOLD(D500) PM_ON_SW_N (D700) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...
Page 96: Only For Training And Service Purposes
48MHz is r un? Check X200 Chang e th e Main bo ard VA500(USB_D+) X200(48MHz) R514(USB_VBUS) C540(USB_VBUS) U500(USB_VBUS) U507(USB_D+) U304(USB_D+) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
Page 97: Only For Training And Service Purposes
Follow the micro sd trouble Change the Main board < TOP SIDE > R335(VREG_5V) R301(VREG_USB_3.3V) D501(VREG_5V) C529 (VREG_USB_3.3V) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...
Page 98: Sim Detect Trouble
SIM_P_CLK is run? Change SIM car d Work well? Change th e Main bo ard SIM_P_CLK SIM_P_RST_N SIM_P_DATA J400 C552(VREG_SIM_3.0V) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 99 - Only for training and service purposes...
Page 99: Key Sense Trouble (Keypad)
Work w ell? Check VA700~ VA707, R707~R710 Work w ell? Chang e th e Main bo ard Dome sheet LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...
Page 100: Only For Training And Service Purposes
LOCK CN700 R707 KEY_ROW[0] R708 KEY_ROW[1] R709 KEY_COL[0] R710 KEY_COL[1] SHOT SIDE KEY Schematic of key sense part Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 - Only for training and service purposes...
Page 101: Keypad Backlight Trouble
Work w ell? Chang e th e main bo ard En d VA708 (KYPD_LED_EN) R711~716 (Main) LD703 (+VPWR) LD700~705 (Main) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...
Page 102: Only For Training And Service Purposes
Rev. 1.1 VA708 LD700~705 and R711~716 (Main) EVL14K02200 VA708 (KYPD_LED_N) (GREEN) (WHITE) (RED) Schematic of keypad backlight part Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...
Page 103: Micro Sd Trouble
Check VREG_ MMC_3.0V is o ver 2.85V? Chan ge the MAIN board Work w ell? R804(DETECT) C807(VREG_MMC_3.0V) SOCKET LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...
Page 104: Audio Trouble
Check c onnector pin or ch ang e th e Tou ch FPCB Can you hea r th e ton e? Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...
Page 105: Only For Training And Service Purposes
4. TROUBLE SHOOTING Touch F PCB conn ecto r Receiv er Receiv er pad s ESM6270 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 106 - Only for training and service purposes...
Page 106: Only For Training And Service Purposes
Main b' d R525,R524 ? Check t he CN500 or Can you hear th e tone? change the Main b'd Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...
Page 107: Only For Training And Service Purposes
4. TROUBLE SHOOTING CN500 R524 R525 R528 Schematic of voice path LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...
Page 108: Only For Training And Service Purposes
AUXR MODE CSB_GPIO1 CODEC_I2C_SCL SCLK CODEC_I2C_SDA SDIN PGND C548 HP_L C549 HP_R C550 C551 Schematic of voice path Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 109 - Only for training and service purposes...
Page 109: Only For Training And Service Purposes
SVSS FB503 MAX9722BETE R525 C570 PGND OUTR MIDI_EAR_R U504 SVDD2 C577 HP_EAR_R R529 C578 Schematic of voice path LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...
Page 110: Only For Training And Service Purposes
? Can you hea r th e ton e? Chang e th e sp eaker Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...
Page 111: Only For Training And Service Purposes
MICROSD_DATA[1] BT_SBCK MICROSD_DATA[2] BT_SBDT MICROSD_DATA[3] BT_DATA V_BACK_UP CAM_MIC+ HOOK_SENSE_N WHEEL_SW_R CAM_VDD_AF_2.7V WHEEL_SW_L CAM_VDD_SD_1.8V MMP_CAM_PWR_EN SPK_OUT- SPK_OUT+ CAM_COVER_DET AXK740327G LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...
Page 112: Only For Training And Service Purposes
4. TROUBLE SHOOTING Pads of Speaker C532,C541 C722 U502 (audio codec) FB500, FB501 CN603 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...
Page 113: Only For Training And Service Purposes
Can you s coping some Change the MIC or sound signal at C567,C568? Change the Main Bíd Work w ell? LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...
Page 114: Only For Training And Service Purposes
4. TROUBLE SHOOTING C567, C568 MIC500 (MIC for Handset) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 - Only for training and service purposes...
Page 115: Only For Training And Service Purposes
Can you s coping some Check t he U502 or sound signal at C235,L200? Change the Main B'd Work w ell? LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...
Page 116: Only For Training And Service Purposes
4. TROUBLE SHOOTING C535 #8 pin of ear connector to check EAR_SENSE_N Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...
Page 117: Camera Trouble
Chang e th e camera Change th e Filte r Camera is OK Chang e th e Main bo ard LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...
Page 118 4. TROUBLE SHOOTING MMP_CAM_PWR_EN CAM_VDD_SA_2.7V CAM_VDD_SD_1.8V CAM_VDD_IO_2.7V FL600 U604 U607 MMP_CAM_RESET_N FL601 CAM_VDD_CORE_1.2V 5M_CAM_MCLK MMP_CAM_PCLK CAM_VDD_AF_2.7V Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - Only for training and service purposes...
Page 119 INOUT_A3 MMP_CAM_DATA[1] INOUT_B2 INOUT_A2 5M_CAM_DATA[1] MMP_CAM_DATA[0] 5M_CAM_DATA[0] INOUT_B1 INOUT_A1 ICVE10184E070R100FR FL601 U607 FL601 Schematic of 5M camera part LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...
Page 120: Main Lcd Trouble
Chang e th e Main BD Displ ay OK? Chang e th e LCD modul e The LCD works Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 121 - Only for training and service purposes...
Page 121 4. TROUBLE SHOOTING Main BD LCD_VDD_2.8V LCD_NRESET LCD_DATA[0~15] SUB BD LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...
Page 122 INOUT_A1 INOUT_B1 MMP_LCD_DATA[13] LCD_DATA[13] INOUT_A2 INOUT_B2 MMP_LCD_DATA[14] LCD_DATA[14] INOUT_A3 INOUT_B3 MMP_LCD_DATA[15] LCD_DATA[15] INOUT_A4 INOUT_B4 Schematic of LCD part Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...
Page 123: Bluetooth Trouble
R120 100K 1000p TCXO_PM C147 1000p C148 8200p RTR6275_TCXO TCXO_BT U102 19.2MHz TC7SH04FS Figure. Schematic of Bluetooth Interface LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 124 - Only for training and service purposes...
Page 124: Bluetooth Rf Test
SBST/SBCK/ SBDT is asse rted? TP800/TP801/ P802 Change Blu etooth is work well? the main bo ard R800 BT_ANT Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 125 - Only for training and service purposes...
Page 125: Touch Screen Trouble
Replace t he Main board C701 (LCD_VDD_2.8V) Touch Window Con nector U700 R702 (TOUCH_PENIRQ_N) R704(TOUCH_I2C_SDA) Touch F PCB Connector R703 (TOUCH_I2C_SCL) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 126 - Only for training and service purposes...
Page 126: Download
LGMDP supports Windows 2000/XP where the LG (Ver 4.6 or later) USB modem driver is installed. Additionally, LGMDP allows multi downloading up to 9 handsets at the same time.
Page 127: Connecting To Pc
Then click on the Connect button. (The port number(COM7) shall be different from that of the port number in the snapshot.) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
Page 128 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 129 - Only for training and service purposes...
Page 129 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 130 - Only for training and service purposes...
Page 130 Override partition table is also also defaultly not selected and user cannot choose. 6) Clear: Clearing all directory paths of images in the dialog. 7) Start: Starting downloading the selected individual image. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 131 -...
Page 131 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 132 - Only for training and service purposes...
Page 132 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 133 - Only for training and service purposes...
Page 133 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 134 - Only for training and service purposes...
Page 134 Click on the No button if this is not the setting you are downloading for. Otherwise click on the Yes button to continue downloading selected image file with options. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 135 -...
Page 135 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 136 - Only for training and service purposes...
Page 136 • Select dz image path where dz image file is located by clicking on the Browse... button. Click on the Start Button to start downloading DZ image. If you want to go back to original download mode, click on the Original button. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 137 -...
Page 137 • Erasing the existing directories and files KE990/KE990c before the Module image is downloaded. • Downloading the AMSS modem image KE990/KE990c LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 138 - Only for training and service purposes...
Page 138 • Rebooting the handset and re-establishing the connection • Erasing the existing directories and files KE990/KE990c before downloading the selected Media image Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 139 - Only for training and service purposes...
Page 139 KE990/KE990c • Downloading Module image in progress KE990/KE990c • Rebooting handset • Downloading process has completed KE990/KE990c successfully LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 140 - Only for training and service purposes...
Page 140 USB connectivity and check where the COM has been installed . Select Device Manager from the Tools of the file menu. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 141 -...
Page 141: Troubleshooting Download Errors
Click on the Connect button to continue. KE990/KE990c KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 142 - Only for training and service purposes...
Page 142 After downloading images successfully, it will boot to normal mode. KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 143 - Only for training and service purposes...
Page 143 5.3.2 NV Restore Error • Snapshot showing the NV Restore error. Next slide shows the remedial procedure to adopt. KE990/KE990c LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 144 - Only for training and service purposes...
Page 144 (Enable state in the window indicates that the Phone has been detected and is ready to download.) KE990/KE990c KE990 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 145 - Only for training and service purposes...
Page 145 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 KE990 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 146 - Only for training and service purposes...
Page 146: Caution
4) Recommended that the Module and Media Image have to be downloaded at the same time. 5) Erase EFS option will erase everything (media, module, nv items, and user data) in the EFS area. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 147: Block Diagram
6. BLOCK DIAGRAM 6.1 GSM RF Block Dugital IO s & controls ESM6270 [Figure 2.1] EGSM-900/DCS-1800/PCS-1900 RF Functional Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 148 - Only for training and service purposes...
Page 148 BT RF Tran sceiver BT TRX U101 TQM7M5003 TX Dual PAM FL101 EFCH897MTDB1 Tx SAW Filter [Table 2.1] RF Block Component Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 149 - Only for training and service purposes...
Page 149: Interface Diagram
RT R6235 MURATA Q_OUT Q_OUT_N RX_IP//IM, RX_QP//QM I_IP_CH0 I_IM_CH0 Q_IP_CH0 Q_IM_CH0 SSBD T_RTR [Figure 2.2] KE990/KE990c Interface Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 150 - Only for training and service purposes...
Page 150 Bidirec tional SSBI Data FEM_CTL signal GSM850Tx/Rx, ANT_SEL 0,1,2 Ant S witch Module Mod e Selection DCS Tx/Rx, PCS Tx/Rx Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 151 - Only for training and service purposes...
Page 152: Circuit Diagram
RFGND C147 1000p C148 8200p RTR6275_TCXO TCXO_BT U102 C166 TC7SH04FS FM_ANT 100p C171 L127 100nH C172 TP103 SLEEP_CLK - 153 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 153 MSM6275 VREG_MSMP_2.7V C232 Place near 0.1u MSM pin AD26 R217 R218 2.2K 2.2K - 154 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 154 MSM_USB_D+ MMP_XTAL_OUT HSD2+ MMP_USB_D+ FA-238_27MHz_9PF X300 USB_D+ MSM_USB_D- HSD1- 27MHz C339 C340 MMP_USB_D- HSD2- USB_D- SWITCH FOR USB2.0 - 155 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 155 NC16 NC77 NC17 NC78 NC18 NC79 NC19 NC80 NC20 NC81 NC21 NC82 MICRO SD SELECT MSM AND MMP - 156 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 156 C584 0.1u HSD2+ USB_D+ RMT_INT-USB_D+ RMT_ADC HSD1- USB_D- HSD2- RMT_ADC-USB_D- CAM/HP MIC SEL C588 USB/REMOCON_SEL MMI 18Pin CONNECTOR - 157 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 157 UART_RXD TP602 PM_ON_SW_N R626 TP603 VBATT TP604 1608 MAIN - SUB B to B Conn. FOR NEST JIG - 158 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 158 C702 100p VIN1 MOTOR+ R726 MOTOR- C703 VIN2 4.7u RCV+ L701 4.7uH RCV- MMP_PWR_EN C704 100p MMP_CAM_PWR_EN R728 - 159 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 159 CAMERA COVER DETECT MAIN - SUB B to B Conn. SPK_OUT+ OUT800 SPEAKER PAD SPK_OUT- OUT801 SPEAKER +/- - 160 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 160 ZD900 CAM MIC NCS2200SQ2T2G U902 VIN+ HOOK_SENSE_N R905 EAR_MIC_P VIN- 5.1K C905 VREG_MSMP_2.7V Headset Hook Switch R907 0.1u - 161 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 161 7. CIRCUIT DIAGRAM SW900 KEY_ROW[0] KEY_ROW[0] LOCK KEY KEY_ROW[1] CAMERA KEY_COL[0] FOCUS KEY_COL[1] KEY_ROW[1] KEY_COL[0] KEY_COL[1] - 162 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 168: Pcb Layout
<Headphone AMP> - Headset operation <OVP IC> - Over voltage protection <Charge Pump> - LCD backlight charge pump - 169 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 169 - GSM, WCDMA TX/RX <GSM PAM> operation - GSM TX amplifier operation <FEM> <RF SW> - RX, TX switching selection - 170 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 172: Calibration & Rf Auto Test Program (Hot Kimchi)
Choose “1” in LOGIC MODE (means calibration alone) 2. Select the model name(KE990, KE998, KE990c, or KE990D) which you want in list box. 3. Click Start button to calibrate a phone. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 173 -...
Page 173 - You can run the multi mode. (S/B1,S/B2 : You can use S/B1 for only one port) - You can set the path of HOTKIMCHI program. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 174 - Only for training and service purposes...
Page 174 Calibration or Test. - The result files are saved in the directory “C:\Jhangee\debug\Cal”, “C:\Jhangee\debug\Auto”, or “C:\Jhangee\debug\CalAuto”. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 175 - Only for training and service purposes...
Page 176: Exploded View & Replacement Part List
11. EXPLODED VIEW & REPLACEMENT PART LIST 11.1 EXPLODED VIEW 43 44 39 40 17 23 70 71 - 177 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 178: Replacement Parts
MPFZ0029901 COMPLEX, (empty), , , , , Color MSDD00 SPRING,PLATE MSDD0007301 PRESS, Bs, 0.15, , , , Gold Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 179 - Only for training and service purposes...
Page 179 COMPLEX, (empty), , , , , Color Without MTAB00 TAPE,PROTECTION MTAB0185401 COMPLEX, (empty), , , , , Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 180 - Only for training and service purposes...
Page 180 GMEY0010601 1.4 mm,2.5 mm,MSWR3(BK) ,N ,+ ,NYLOK Black MLAK00 LABEL,MODEL MLAK0022301 PRINTING, (empty), , , , , White Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 181 - Only for training and service purposes...
Page 181 MPBZ0190001 COMPLEX, (empty), , , , , Color Without MPBZ00 MPBZ0187201 COMPLEX, (empty), , , , , Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 182 - Only for training and service purposes...
Page 182: Main Component
28 PIN,0.4 mm,ETC , ,B to B ,; , ,0.40MM ,[empty] ,MALE CN601 ENBY0041601 BOARD ,SMD ,BK , , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 183 - Only for training and service purposes...
Page 183 22000000 pF,6.3V ,M ,X5R ,HD ,2012 ,R/TP , , ,[empty] C130 CAP,CERAMIC,CHIP ECCH0000393 ,[empty] ,[empty] ,[empty] ,[empty] ,[empty] ,1.25 mm LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 184 - Only for training and service purposes...
Page 184 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C236 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 185 - Only for training and service purposes...
Page 185 ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP C505 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 186 - Only for training and service purposes...
Page 186 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP C541 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C542 CAP,CERAMIC,CHIP ECCH0000151 4.7 nF,25V,K,X7R,HD,1005,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 187 - Only for training and service purposes...
Page 187 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C627 VARISTOR SEVY0000702 14 V,10% ,SMD , C702 CAP,CHIP,MAKER ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 188 - Only for training and service purposes...
Page 188 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (50 Ohm,15pF) J400 CONN,SOCKET ENSY0018701 6 PIN,ETC , ,2.54 mm,H=1.8 L100 CAP,CERAMIC,CHIP ECCH0000107 6 pF,50V,D,NP0,TC,1005,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 189 - Only for training and service purposes...
Page 189 100 ohm,1/16W ,F ,1005 ,R/TP R114 RES,CHIP,MAKER ERHZ0000504 68 ohm,1/16W ,J ,1005 ,R/TP R115 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 190 - Only for training and service purposes...
Page 190 10 Kohm,1/16W ,F ,1005 ,R/TP R509 RES,CHIP,MAKER ERHZ0000490 51 ohm,1/16W ,J ,1005 ,R/TP R510 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 191 - Only for training and service purposes...
Page 191 ,[empty] ,[empty] ,[empty] ,1.5N , ,TP QFN ,56 PIN,R/TP ,RTR6275 EDGE Version RF U100 EUSY0300503 Transceiver ,; ,IC,CMOS LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 192 - Only for training and service purposes...
Page 192 48 MHz,.5 %,14 pF,SMD ,2.0*1.2*0.65 ,Outgoing X200 RESONATOR EXRY0002401 Tolerance 0.2%, 0.05% at -40'C ~ +85C, Built-In Cap Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 193 - Only for training and service purposes...
Page 193 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C306 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 194 - Only for training and service purposes...
Page 194 ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP C563 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 195 - Only for training and service purposes...
Page 195 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C616 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 196 - Only for training and service purposes...
Page 196 100 Kohm,1/16W ,J ,1005 ,R/TP R336 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP R338 RES,CHIP,MAKER ERHZ0000509 75 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 197 - Only for training and service purposes...
Page 197 WLCSP(Coated) ,25 PIN,R/TP ,FM Tuner(RDS), 3.35*3.3, U103 EUSY0335301 Pb Free HVSOF5 ,5 PIN,R/TP ,150mA, 2.8V, Auto Power Save U300 EUSY0290701 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 198 - Only for training and service purposes...
Page 198 14 V, ,SMD ,50pF, 1005 VA710 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005 VA711 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 199 - Only for training and service purposes...
Page 199 U900 EUSY0294701 SON1612-6 ,6 PIN,R/TP ,1.8V 150mA LDO Pb-Free U901 EUSY0338701 SON1612-6 ,6 PIN,R/TP ,2.7V 150mA LDO Pb-Free LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 200 - Only for training and service purposes...
Page 200 100 Kohm,1/16W ,J ,1005 ,R/TP R806 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP R808 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 201 - Only for training and service purposes...
Page 201 1GB / MICROSD / MLC 1 DIE ,; ,Module Assembly 1GB / MICROSD / HYN MLC 1 DIE / EAN30221132 ,; MODULE,ETC SMZY0018301 ,Module Assembly LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 202 - Only for training and service purposes...
Page 202: Accessory
100-240V ,5060 Hz,5.1 V,0.7 A,NOM ,18pin MMI, Nyx SSAD00 ADAPTOR,AC-DC SSAD0024604 packing, Mexico ,; , , , , , ,WALL 2P ,I/O CONNECTOR , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 203 - Only for training and service purposes...
Page 203 Note...
Page 204 Note...

This manual is also suitable for:

Ke990c

LG KE990 - Viewty Cell Phone 100 MB Service Manual

1 Introduction

2 Performance

3 Technical Brief

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 BGM Pin Map

9 Pcb Layout

10 Calibration & RF Auto Test Program (Hot Kimchi)

11 Exploded View & Replacement Part List

Quick Links

Troubleshooting

Need help?

Questions and answers

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Summary of Contents for LG KE990 - Viewty Cell Phone 100 MB