Page 1 Internal Use Only Service Manual LG-P990 Date: February, 2011 / Issue 1.0...
Page 2: Table Of Contents
1.3 Accessory .....................59 4. TROUBLE SHOOTING ............71 4.1 RF Component ..................71 4. SIGNAL PATH ................... 73 LGE Internal Use Only - - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 3: Introduction
Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty. 4/140 LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 4 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. 5/140 LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 5: Abbreviations
International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode OPLL Offset Phase Locked Loop 6/140 LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 6 UART Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol 7/140 LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 7: Performance
Part Name Comment Digital Baseband PMB9801 : Infineon Analog Baseband PMB9801 : Infineon One chip RF Chip PMB5703: Infineon LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 8: Hw Features
E2 (DCS) GPRS compatibility GPRS Class 10 EDGE compatibility EDGE Class 10 SIM card type Plug-In SIM 2.85V /1.8V LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 9 Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash Upto 32GB (External Memory) LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10: Sw Features
There is no limitation on the number of items. It depends on available memory amount. Search by Number Name / N / Name LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 11 There is no limitation on the number of items. It depends on available memory amount. World Clock Unit Convert LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 12 Class 10 EDGE Class 10 Hold / Retrieve Conference Call Max. 6 DTMF Memo pad SyncML Gtalk Email LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 13: Hw Spec
: -98dBm/-96dBm (2.439%) AM Suppression GSM : -31dBm -98dBm/-96dBm (2.439%) DCS : -29dBm Timing Advance ± 0.5T LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 14 < 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout -20 dBm LGE Internal Use Only - 14 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 15 +1.5/4 Inner Loop Power Control -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 In Uplink -0.5/-1.5 -1/-3 -1.5/-4 group(10equal command group) +8/+12 +16/+24 LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 16 Power Ratio (ACLR) > 43 dB @ ±10 MHz Error Vector < 17.5 %, when Pout ≥ -20 dBm Magnitude LGE Internal Use Only - 16 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 17 Sub-Test : 1=11/15, 2=6/15, 3=15/9, 4=2/15, 5=15/15 Channel > 33 dB @ ±5 MHz Leakage > 43 dB @ ±10 MHz Power Ratio (ACLR) LGE Internal Use Only - 17 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 18 ≥ -10dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8% Rx Adjacent Channel Rejection ≥ 35dB @FER ≤ 8%, interference input signal -70dBm@fc±25MHz(11Mbps) LGE Internal Use Only - 18 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 19 ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 19 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 20 ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 0 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 21: Current Consumption
(DRX = 1.28) Low Pwr mode) 350 hours over 250 min over (Paging Period = 9) (TX Level = Max) LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 22 Over -90 ±2dBm -90 ±2dBm -90 ±2dBm -96 ±2dBm -97 ±2dBm -102 ±2dBm -103 ±2dBm -110 ±2dBm -107 ±2dBm LGE Internal Use Only - - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 23: P990 Figures
Critical Low Battery Pop-up 0% ~ 3% : Every Level change popup (No call) POWER OFF 2.7 P990 Figures LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 24: Technical Brief
3. TECHNICAL BRIEF 3.1 GENERAL DESCRIPTION The LG-P990 supports UMTS-900, UMTS-1900, UMTS-2100, GSM-850, GSM-850, GSM-900, GSM-1800, and GSM- 1900 based GSM/GPRS/EDGE/UMTS. All receivers and the UMTS transmitter use the radioOne1Zero-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 25 The AFC control is maintained by providing a voltage generated by a 12-Bit DAC to the external TCVCXO module, which means the reference clock is synchronized to the system frequency. LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26: Gsm Mode
The chain is basically identical to the 3G line-up but many stages in analog and digital domain are switched into a different operation mode. LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 27 The downconverted baseband outputs are multiplexed and routed to lowpass filters (one I and one Q) having passband and stopband characteristics suitable for GMSK or 8-PSK processing. These filter circuits include DC offset corrections. LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 28 There is no limitation on the number of items. It depends on available memory amount. World Clock Unit Convert LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30: Umts Transmitter
AC / OC NZsh time adj. 1 bh sign DC offset comp CORDIC Word [Figure 3-2] 3G Transmitter Line Up LGE Internal Use Only - 30 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 31: Gps Receiver
GPS LNA. The impedance transformer circuit topology is shown in Figure 1-6. [Figure 1.6] GPS Input Network Topology LGE Internal Use Only - 31 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 32: Lo Generation And Distribution Circuit
VCO. The RX synthesizer is in UMTS RX block working with the 3G RX VCO. [Figure 3-6] RF Synthesizer (GMSK/8-PSK and UMTS) [Figure 3-6] RF Synthesizer (GMSK/8-PSK and UMTS) LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 33 To cover the wide frequency range the VCOs are automatically aligned by a binary automatic band selection before the settling process of the synthesizer starts. LGE Internal Use Only - 33 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34: Off-Chip Rf Components
Bipolar Transistor) MMIC (microwave monolithic integrated circuit) technology offering state-of-the-art reliability, temperature stability and ruggedness. [Figure 6-1] ACPM5281 (W2100,W900) [Figure 6-2] ACPM-5202(W1900) LGE Internal Use Only - 34 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 35 0.1 μF low frequency filter near to MSM side, and isolate from digital logic and clock traces with ground on both sides, plus ground above and below if routed on internal layers. LGE Internal Use Only - 35 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36 LINEAR RF VDET DETECTOR POWER VRAMP RxTx-M1 CONTROL Rx-L1 Tx_LB Match RxTx-L V-Q3_LB Batt [Figure 6-3] SKY77529 Block Diagram LGE Internal Use Only - 36 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 37 3. TECHNICAL BRIEF [Figure 6-4] SPI Write Programming Truth Table LGE Internal Use Only - 37 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 The RF2185 is packaged in a compact 3.3 mm x 2.1 mm x 1.0 mm package with low external component count required to achieve the best-in-class performance. LGE Internal Use Only - 38 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 39: Digital Baseband(Ap0)
HiFi Voice LDOs & Codec DC-DC Power on Battery Mamt & Battery Charging AP20 Block Diagram(Typical Connections Shown) LGE Internal Use Only - 39 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40 In addition to its processing elements, an extensive set of peripheral interfaces enables communication with all necessary external devices. This high level of integration minimizes system BOM and enables compact form factor design. LGE Internal Use Only - 40 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 41: Hardware Architecture
Receiver PMIC PMIC 32.768K WM8994 WM8994 Speaker (MAX8907C) V_POWERRAIL 1500mAh 3.5 pi earjack FM Ant Figure. Block Diagram LGE Internal Use Only - 41 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42: Subsystem
The SPI is implemented using the USIF2 of the X-GOLD™616, with the GPIO’s implementing sleep mode and readiness handling LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 43 DSP over shared memory to activate various configurations of the AFE. Note that the activities of the ARM remain purely digital audio processing. LGE Internal Use Only - 43 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44 Additionally, the AFE physically selects the correct audio analog paths and is directly managing the analog inputs and outputs. LGE Internal Use Only - 44 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 45: Vocoder Subsystem
This clock is available also for other system components like GPS. LGE Internal Use Only - 45 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 • UICC-Terminal USB interface according to ETSI TS 102 600 (ICCD only) •Suspend/Resume and Remote Wakeup (for power saving) LGE Internal Use Only - 46 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48 An additional step-up converter drives up to 14 white LED with controlled current for display backlighting. All power and WLED outputs are set via an I2C interface. Figure. MAX8907 functional block diagram LGE Internal Use Only - 48 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 49 - Thermal Feedback Optimized Charge Rate Thermal Feedback Optimized Charge Rate - RoHS Compliant and Halogen Free RoHS Compliant and Halogen Free LGE Internal Use Only - 49 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 ISET The parameter K is specified in the specification table. iset I charge = iset LGE Internal Use Only - 50 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 51 RT954 still monitors the vattery voltage. Charge current is resymed when the battery voltagr goes to lower then the battery regulation voltage threshold. LGE Internal Use Only - 51 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52 Critical Low Battery Pop-up 0% ~ 3% : Popup at every level change POWER OFF Table. LGP990 battery bar specification LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 53: External Memory Interface
3.11.4 External SD card memory Interface AP20 supports external SD card which supports up to 32GB (SDHC compatible) LGE Internal Use Only - 53 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54: Audio And Sound
Digital Mixer Receiver Receiver HPOUT2P HPOUT2P IN1RN SPKOUTLN WM8994 Speaker SPKOUTL Figure. Block diagram of Audio & Sound path LGE Internal Use Only - 54 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 55 • ARM™1176 Embedded Microcontroller core (ARM) • Embedded Digital Signal Processor core (DSP) • Audio front end (AFE) Figure 1. Audio Block diagram LGE Internal Use Only - 55 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56 Active ground loop noise rejection and DC offset correction help prevent pop noise and suppress ground noise on the headphone outputs. LGE Internal Use Only - 56 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 57 C1031 R1015 VCC_IO_1V8 EJ_MICBIAS Q1001 C1027 C1028 EARJACK_SENSE C1032 120p 50PIN_EJ_MIC HOOK_ADC R1017 R1023 HOOK_DET 50PIN_EAR_SENSE C1035 0.1u LGE Internal Use Only - 57 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58: Main (8M Pixels) & Sub (1.3M Pixels) Camera
3. TECHNICAL BRIEF 3.13 Main (8M pixels) & Sub (1.3M pixels) Camera LG-P990 supports two cameras. One is 8M pixels, main camera, the other is 1.3M pixels, sub camera used VT & self camera scene. CAM_AVDD_2V8 CAM_VDIG_1V2 CAM_VIO_1V8 CAM_AF_2V8 FB801...
Page 59 8M MIPI DATA1 N 8M_MIPI_DATA1_N (LGIT) (LGIT) 8M_MIPI_DATA1_P 8M_RESET_N CAM_MCLK 8M CAM VCM EN 8M_CAM_VCM_EN CAM_VIO_1V8 Figure. Camera Block diagram LGE Internal Use Only - 59 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60: Display
LCD_WRX LCD_CSX R827 LCD_RESET_N LCD_MAKER_ID C836 VA803 C827 C826 2.2u 2.2u Figure. Schematic of LCD connector (Main Board) LGE Internal Use Only - 60 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 61 IEDC_1 Ground for LED MAKER_ID(Low) Maker ID(Low; GND level) Ground Table. Interface between LCD Module and MAIN Board LGE Internal Use Only - 61 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62: Vibrators
The ERM motor, also distinguished as ‘Q-coin Motor’ creates a certain kind of vibration controlled and defined uniquely by LG Electronics. The followings are the certain examples of conditions that the users may feel the vibration from the phone: Incoming Call (in Silence Mode), Google Keys Pressed, Turn-on / -off, Dialing, and Text Messaging.
Page 63: Hdmi
DDC_SDA D703 D702 Figure 1 HDMI Type D Connector Schematic Figure 2 HDMI Type D Connector Pin Assignments LGE Internal Use Only - 63 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64: Compass Sensor
VCC_SENSOR_3V0 0.1u 0.1u U1107 GEN2_I2C_SCL GEN2_I2C_SDA COM_INT DRDY ADDR Figure. Compass Sensor Schematic Figure. Compass Sensor Block Diagram LGE Internal Use Only - 64 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 65: Motion Sensor
DNC1 DNC4 MOTION_INT DNC2 DNC3 VCC_SENSOR_3V0 C1120 C1121 0.1u Figure. Motion Sensor Schematic Figure. Motion Sensor Block Diagram LGE Internal Use Only - 65 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66: Gyro Sensor
The gyro sensor(MPU3050) can sense angular velocity not gravity and accelerated motion. The gyro sensor applied in LG- P990 can detect 3-axis rotation force sensing X,Y and Z angular velocity. And the gyro sensor data is supplemented by the motion sensor data. It make possible user to development application SW using gyro sensor data like that motion games.
Page 67: Proximity Sensor
C101 R102 VOUT C104 C105 C103 0.1u 4.7u PROXI_OUT Figure. Proximity Sensor Schematic Figure. Proximity Sensor Block Diagram LGE Internal Use Only - 67 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68: Illumination Sensor
Ambient Light Sensor C102 U102 LSENSOR_SENS LSENSOR_BIAS IOUT GND1 Figure. Illumination Sensor Schematic Figure. Illumination Sensor Block Diagram LGE Internal Use Only - 68 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 69: Touch Module
C901 C921 0.1u Figure. Schematic of Touch connector (Main Board) Table. Interface between Touch Module and MAIN Board LGE Internal Use Only - 69 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70: Main Features
- Supports Bluetooth and HS-USB - Supports WLAN(802.11b, 802.11g, 802.11n) - Supports FM Radio - 1500 mAh (Li-Ion) LGE Internal Use Only - 70 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71: Trouble Shooting
WCDMA LNA FL106 W1900 Duplexer FL110 FL108 W2100 Duplexer W900 Duplexer U104 FEM+GSM RF component (WCDMA / GSM) LGE Internal Use Only - 71 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72 WCDMA (VIII) TX SAW Filter U106 WCDMA (I,II, VIII) LNA FL110 WCDMA (I) Duplexer X101 TC-VCXO(26MHz) FL106 WCDMA (II) Duplexer LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73: Signal Path
A. WCDMA 2100 TX PATH B. WCDMA 1900 TX PATH C. WCDMA 900 TX PATH D. COMMON TX/RX PATH\ LGE Internal Use Only - 73 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74: Lge Internal Use Only
A. WCDMA 2100 RX PATH B. WCDMA 1900 RX PATH C. WCDMA 900 TX PATH D. COMMON TX/RX PATH LGE Internal Use Only - 74 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75: Lge Internal Use Only
4. TROUBLE SHOOTING GSM850/GSM900/DCS/PCS’s RX/TX Signal PATH A. GSM850/GSM900/DCS1800/PCS1900 RX PATH B. GSM850/GSM900/DCS1800/PCS1900 TX PATH C. COMMON TX/RX PATH LGE Internal Use Only - 75 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76: Checking Tcxo Block
The output frequency (26MHz) of TCXO (X101) is used as the reference one of PMB5703 C121 C120 VCONT 2.2p X101 DSA221SCL 26MHz Close to X101 4-pin Schematic of the Crystal Part (26MHz) LGE Internal Use Only - 76 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 77 .45V ≥ VCC ≥ .6V Check the PMB5703 Check TP Check soldering and 6 MHz Signal components TCXO is OK LGE Internal Use Only - 77 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78: Checking Gsm Tx Module(Gsm Pam + Fem) Block
4. TROUBLE SHOOTING 4.4 Checking GSM TX Module(GSM PAM + FEM) Block VBATT(TP1) LGE Internal Use Only - 78 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 79 C182 VRAMP GND5 GND_HB RX_M2 C187 DCS_PCS_TX RX_1800 TX_HB RX_M3 V_POWERRAIL C197 Schematic of the Antenna Switch Block LGE Internal Use Only - 79 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80 PAM Vbatt of Check TP1 .9V < VCC < 5V Replace the GSM Module(U104) Check the Logic in each mode LGE Internal Use Only - 80 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 81: Checking Wcdma Block
3. Check RF Tx Level 4. Check PAM Block Refer to 1.5.4 5. Check RF Level 6. Ro-download SW & Cal. LGE Internal Use Only - 81 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82: Checking Fem Block
Refer to 1.3 4.5.2. Checking FEM Block Refer to 1.4 4.5.3. Checking RF TX Level Test Point (TX Level) LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 83 GND1 GND6 L115 2.2n 1950MHz 0.5p GND2 GND5 GND3 GND4 1950MHz,2140MHz For testing, Max power output is needed. LGE Internal Use Only - 83 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 Check PAM Block Refer to 1.5.4 PMB5703 Maximum output Power = 7 dBm PMB5703 minimum output Power = -73 dBm LGE Internal Use Only - 84 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85: Checking Pam Block
PAM control signal W_PA_EN (W_900_PA_EN(C184),W_1900_PA_EN(C163) W_2100_PA_EN(C183) and) : PAM Enable W_PA_MODE1,2: PAM Gain Control W_PA_EN must be HIGH (over 2.6V) LGE Internal Use Only - 85 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 (WCDW_PA_Mode(C165,C185):Low, WCDMA_PA_Mode2(C164,C186):Low), PAM OUT power must be over 21 dBm PAM IN power must be under 10 dBm LGE Internal Use Only - 86 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 87 2.7n C193 1.5n C194 C195 L123 C196 GND1 GND6 L115 2.2n 1950MHz 0.5p GND2 GND5 GND3 GND4 1950MHz,2140MHz LGE Internal Use Only - 87 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88 Check TP Check PMB5703 PA_MODE ≥ 0.5 V Check TP1 Over 10 dBm? Check PMB5703 Change the board LGE Internal Use Only - 88 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 89 4. TROUBLE SHOOTING 4.5.5. Checking RF Rx Level Bias Test Point (RF Rx Level) LGE Internal Use Only - 89 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 897.5 MHz,942.5 MHz Band1 FL110 C188 27pF C2008 C193 L123 GND1 GND6 2.2n GND2 GND5 GND3 GND4 1950MHz,2140MHz LGE Internal Use Only - 90 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 91 RX_2100_H 2140MHz FL104 C119 2.5p RX_1900_M2 C122 C123 L104 RFOUTM G1G2 5.6n C126 2.5p 1960MHz Band2/PCS C125 RX_1900_M2X LGE Internal Use Only - 91 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 Check TP4 Signal exist? Check LNA Check TP5 Signal exist? Check PMB5703 and Rx SAW filter Change the board LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 93: Checking Gsm Block
1. Check TCXO Block . Check ANT.SW Module 3. Check RF TRX Level 4. Ro-download SW & Cal. LGE Internal Use Only - 93 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 95 4.6.1 Checking TCXO Block Refer to 1.3 4.6.2 Checking FEM Block Refer to 1.4 4.6.3 Checking RF TX level LGE Internal Use Only - 95 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96 RXTX_M1 C182 VRAMP GND5 GND_HB RX_M2 C187 DCS_PCS_TX RX_1800 TX_HB RX_M3 V_POWERRAIL C197 Schematic of GSM/DCS/PCS Tx Block LGE Internal Use Only - 96 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 97 If DCS/PCS(TP3) over 7 dBm? No Problem Check PMB5703 & PAD Check soldering and components Still exist Problem Change the board LGE Internal Use Only - 97 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98: Checking Rf Rx Block
4. TROUBLE SHOOTING 4.6.4 Checking RF Rx Block LGE Internal Use Only - 98 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 99 RX_2100_H 2140MHz FL104 C119 2.5p RX_1900_M2 C123 C122 L104 RFOUTM G1G2 5.6n C126 2.5p 1960MHz Band2/PCS C125 RX_1900_M2X LGE Internal Use Only - 99 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100 Check TP1 Signal exist? Check RF Switch (M/S) Check TP Signal exist? Check FEM Block Refer 1.4 Change the board LGE Internal Use Only - 100 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 101: Gps/Wifi/Bt Rf Component
Chip X1201 Reference Description U1202 BCM4751 GPS Module FL1201 GPS Saw filter X1201 TCXO 26MHz U1205 150mA LDO LGE Internal Use Only - 101 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102 U1203 Wifi/BT/FM X1202 U1204 Reference Description U1203 SWB-B25 Wifi/BT/FM Module X1202 TCXO 38.4MHz U1205 150mA LDO for TCXO LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 103: Gps/Wifi/Bt Signal Path
4. TROUBLE SHOOTING 4.8 GPS/WIFI/BT SIGNAL PATH 4.8.1 GPS Signal Path TO AP20 LGE Internal Use Only - 103 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 104 BT PCM & UART to AP20 FM ANT via FM L/R to WM8994 Earphone GND Wifi Signal BT Signal FM Signal LGE Internal Use Only - 104 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 105: Power On Troubleshooting
USB_OUT_5V(C647) SYS_RESET_N_AP20 goes high MAXIM CONFIDENTIAL MAX8907C_DS_Rev 1.0 6/29/2010 Figure 12 ON/OFF Controller Circuitry Page 52 of 159 LGE Internal Use Only - 105 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 106 Change the Main board VCC_IO_1V8, VCC_DDRX_3V3 Power up? is clock OK? Change the TCXO and X-tal X601:3.768Khz Change the main board LGE Internal Use Only - 106 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 107 4. TROUBLE SHOOTING BOTTOM view of LGP990 L604 L603 X601 L602 L601 TOP view of LGP990 R628 LGE Internal Use Only - 107 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 108: Charger Troubleshooting
- Connection of TA or USB Cable - Check the charger (TA or USB Cable) connector - Charging current path(RT954) - Battery LGE Internal Use Only - 108 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 109 After turning on? Check PMIC SMT status by X-ray Exchange PMIC or Change the main board and Retest LGE Internal Use Only - 109 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 111: Usb Trouble Shooting
Change Lower Lower FPCB Change Lower USB_D+ is 3.3V? Check USB_D+is 3.3V? Check Change the Main Change the main LGE Internal Use Only - 111 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 112 R1117 R1149 4.7K R1152 4.7K USB1_VBUS USB_OUT_5V USB1_DN USB_AP20_DN 90ohm matching !! USB1_DP USB_AP20_DP TP402 USB1_ID USB3_DN USB3_DP LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 115 4. TROUBLE SHOOTING Check if FPCB is cut or damaged U1206 (MUIC – MAXIM14526) LGE Internal Use Only - 115 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116: Audio Trouble
Check the waveform of TP1. Change the Lower FPCB Waveform is OK? Change the Audio codec IC Spker sound is OK? LGE Internal Use Only - 116 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 117 SPKOUTLP SPK_P SPKOUTRN C1033 C1034 SPKOUTRP CPCA C1026 2.2u CPCB R1014 CPVOUTN 2.2u CPVOUTP C1030 2.2u C1031 R1015 LGE Internal Use Only - 117 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118: Receiver Troubleshooting
Check the waveform of TP1. Change the Upper FPCB Waveform is OK? Change the Audio codec IC Spker sound is OK? LGE Internal Use Only - 118 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 119 1800 GEN2_I2C_SDA 50PIN_EAR_R PWR_ON_SW 50PIN_EAR_SENSE FB904 1800 VA902 RCV_P FB901 1800 PROXI_OUT RCV_N TP1(FB901) C916 C917 0.1u 0.1u LGE Internal Use Only - 119 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 120 Check the MICBIAS(TP1) Change the Lower FPCB MICBIAS voltage is V? Change the Audio codec IC Voice recording is OK? LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 121 MIC1P VCC_IO_1V8 SPK_P USB_DM C907 C908 C909 SPK_N USB_DP R902 10K R903 10K VOL_KEY_UP USB_ID VOL_KEY_DOWN D901 D902 LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 122 Change the SUB MIC MICBIAS voltage is V? Change the Audio codec IC Speaker phone call is OK? LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 123 4. TROUBLE SHOOTING SUB MIC MIC900 MICBIAS MIC2P TP1(C913) C913 C914 C915 LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124 Waveform is OK? Voltage is .V? Change the codec IC or main PCB Sound or MIC is OK? LGE Internal Use Only - 14 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 125 1800 PROXI_OUT RCV_N C916 C917 0.1u 0.1u EJ_MICBIAS C1027 C1028 C1032 120p 50PIN_EJ_MIC TP2(R1013) HOOK_ADC R1017 R1023 HOOK_DET LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 126 4. TROUBLE SHOOTING FB902 FB90 C907 C913 C1033 R1013 Ref. No C1033 FB901 C907 C913 FB902 R1013 LGE Internal Use Only - 16 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 127: Camera Trouble(8M/1.3M)
DVDD(TP), AVDD(TP3) Check the camera signals MCLK(TP4), Change the main board MIPI_CLK(TP5), MIPI_DATA(TP6) Change the camera Camera is OK? LGE Internal Use Only - 17 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 128 AA23 CAM_I2C_SDA CAM_I2C_SDA AG31 VI_GP0 VT_RESET_N AC25 VI_GP3 FLASH_LED_EN AA29 VI_GP4 AH30 AVDD_OSC VI_GP5 8M_RESET_N AA25 VI_GP6 VCC_IO_1V8 LGE Internal Use Only - 18 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 129 AA23 CAM_I2C_SDA CAM_I2C_SDA AG31 VI_GP0 VT_RESET_N AC25 VI_GP3 FLASH_LED_EN AA29 VI_GP4 AH30 AVDD_OSC VI_GP5 8M_RESET_N AA25 VI_GP6 VCC_IO_1V8 LGE Internal Use Only - 19 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 131: Main Lcd Trouble
LCD display OK? Check Power Change the LCD module VCC_LCD_1V8 VCC_LCD_V8 V_POWERALL Change the Main board The LCD works LGE Internal Use Only - 131 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132 LCD_R2 LCD_R3 LCD_R4 LCD_R5 LCD_R6 LCD_R7 LCD_DCX LCD_WRX LCD_CSX R827 LCD_RESET_N LCD_MAKER_ID C836 VA803 C827 C826 2.2u 2.2u LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 133: Sim Detect Trouble Shooting
Work well? Work well? Change SIM card Work well? Change SIM card Change Main Work well? Change Main LGE Internal Use Only - 133 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134 UART_RX_IFX MICROSD_DET_N UART_TX_IFX C918 C919 C920 MICROSD_CMD 0.1u 0.1u 0.1u MICROSD_CLK FLASH_LED_ANODE MICROSD_DAT0 MICROSD_DAT1 MICROSD_DAT2 MICROSD_DAT3 FLASH_LED_CATHODE HALL_INT LGE Internal Use Only - 134 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136 GND4 GND3 C102 C103 C104 0.1u P990 SUB FPCB C102 C104 C101 Check if SUB FPCB is damaged LGE Internal Use Only - 136 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 137: Side Key Trouble Shooting
LOWER FPCB damaged? Change LOWER FPCB Lower FPCB damaged? Change Lower FPCB Change the Main board Change the Main board LGE Internal Use Only - 137 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 138 SPK_P USB_DM C907 C908 C909 SPK_N USB_DP R902 10K R903 10K USB_ID VOL_KEY_UP VOL_KEY_DOWN D901 D902 D902 D901 LGE Internal Use Only - 138 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 139: Vibrator Troubleshooting
Check IOVDD(TP1), DVDD(TP), AVDD(TP3) Change the vibrator Check TP1, ,3 Change the main board Vibrator works LGE Internal Use Only - 139 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 140 4. TROUBLE SHOOTING VCC_MOTOR_3V0 U1106 L1101 100n VIBE_EN CN1102 VIBE_PMW MODE C1128 GAIN L1102 100n C1126 SURY0010114 C1127 R1141 LGE Internal Use Only - 140 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 141: Hdmi Troubleshooting
Set the resolution Check the setting on menu suitable for the display Change the main board HDMI woeks LGE Internal Use Only - 141 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 143: Motion Sensor On/Off Trouble
Function is OK? Change the IC(U1105) Function is OK? Change the main board Fnction is OK? LGE Internal Use Only - 143 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 144 4. TROUBLE SHOOTING VCC_SENSOR_1V8 IME_CL IO_VDD U1105 DNC1 DNC4 MOTION_INT DNC2 DNC3 VCC_SENSOR_3V0 C1120 C1121 0.1u LGE Internal Use Only - 144 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 145: Gyro/Compass Sensor Troubleshooting
Function is OK? Change the Gyro sensor IC(U1) Function is OK? Change the main board Function is OK? LGE Internal Use Only - 145 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 146 IME_DA IME_DA VCC_SENSOR_1V8 VCC_SENSOR_3V0 C1119 0.1u C1122 0.1u VCC_SENSOR_1V8 VCC_SENSOR_3V0 0.1u 0.1u U1107 GEN2_I2C_SCL GEN2_I2C_SDA COM_INT DRDY ADDR LGE Internal Use Only - 146 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 148: 1Proximity Sensor On/Off Trouble
Change the upper FPCB SCL output & Prox_out Change the main board Work well? Measurement VCC_SENSOR_3V0 VCC_SENSOR_1V8 PROX_OUT GEN2_I2C_SCL GEN2_I2C_SDA LGE Internal Use Only - 148 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 149 Proximity Sensor VCC_SENSOR_1V8 VCC_SENSOR_3V0 U101 R101 GEN2_I2C_SCL LEDA GEN2_I2C_SDA LEDC C101 R102 VOUT C104 C105 C103 0.1u 4.7u PROXI_OUT LGE Internal Use Only - 149 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150: Illumination Sensor On/Off Trouble
LCD brightness change? Check LSENSOR_BIAS/SENS Change the upper FPCB Change the main board Work well? Measurement LSENSOR_BIAS LSENSOR_SENS LGE Internal Use Only - 150 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 151 4. TROUBLE SHOOTING Ambient Light Sensor C102 U102 LSENSOR_SENS LSENSOR_BIAS IOUT GND1 LGE Internal Use Only - 151 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152: Touch Trouble
Touch is OK? Check power VCC_TOUCH_3V1(TP1) Change the main board VCC_TOUCH_1V8(TP) Change the touch module Work well? Measurement VCC_TOUCH_3V1(TP1) VCC_TOUCH_1V8(TP) LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 153 4. TROUBLE SHOOTING VCC_TOUCH_1V8 VCC_TOUCH_1V8 VCC_TOUCH_3V1 CN903 TOUCH_INT TOUCH_MAKER_ID GEN1_I2C_SCL GEN1_I2C_SDA C901 C921 0.1u LGE Internal Use Only - 153 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154: Download
LGE Internal Use Only - 164 - - 154 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
Page 155 5. DOWNLOAD 5. DOWNLOAD LG-P990 LG-P990 LG-P990 Copyright © 2010 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only LGE Internal Use Only - 155 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 LGE Internal Use Only - 166 - - 156 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
Page 157 5. DOWNLOAD 5. DOWNLOAD LG-P990 LG-P990 LG-P990 Copyright © 2010 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only LGE Internal Use Only - 157 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 LGE Internal Use Only - 168 - - 158 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
Page 159 5. DOWNLOAD 5. DOWNLOAD Copyright © 2010 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only LGE Internal Use Only - 159 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160 LGE Internal Use Only - 170 - - 160 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
Page 161 5. DOWNLOAD 5. DOWNLOAD Copyright © 2010 LG Electronics. Inc. All right reserved. - 171 - LGE Internal Use Only LGE Internal Use Only - 161 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 162 LGE Internal Use Only - 172 - - 16 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
Page 163 5. DOWNLOAD 5. DOWNLOAD Copyright © 2010 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only LGE Internal Use Only - 163 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 164 LGE Internal Use Only - 174 - - 164 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
Page 165 LG-P990 LG-P990 LG-P990 LG-P990 LG-P990 LG-P990 LG-P990 Copyright © 2010 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only LGE Internal Use Only - 165 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166 LGE Internal Use Only - 176 - - 166 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
Page 167: Block Diagram
Charger IC (MAX8952) Receiver PMIC PMIC 32.768K WM8994 WM8994 (MAX8907C) Speaker V_POWERRAIL 1500mAh 3.5 pi earjack FM Ant LGE Internal Use Only - 167 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 168 RX_L2 VDD_IO VSD2 RX SAW RX_L2X RX_M1 RX SAW RX_M1X VSPI VSPI FE CTRL1 FE_CTRL1 FE_CTRL2 FE_CTRL3 FE_CTRL4 LGE Internal Use Only - 168 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 169 FSYS2_EN FSYSEN PA_RAMP PA_RAMP VRAMP with GSM PAM VSPI FE_CTRL1 VSPI F32K 32.768KHz FE_CTRL2 OSC32K SKY77529 FE_CTRL3 FE_CTRL4 LGE Internal Use Only - 169 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 170 IFX RESET 1 8V IFX_RESET_1.8V IFX RESET IFX_RESET RESET_PMU_N GPIO_PV0 Level Shifter IFX_PWRON IFX_PWRON_1.8V ON_OFF1 GPIO_PV1 (NLSV2T244MUTAG) IFX_RESET_FLAG GPIO_PV3 RESET2_N LGE Internal Use Only - 170 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 171 G O 0 I2S_WS FM RX ANT FM_RX_ANT FM_AUDIO_R IN1RP AUDIO_OUT_R WM8994 Audio Analog Out FM_AUDIO_L IN1LP AUDIO_OUT_L LGE Internal Use Only - 171 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 172: Gps Block Diagram
VDD_PRE Communication Processor VDD_BAT PMB9801 VDD_AUX_IN V_POWERRAIL CP_26M_OUT CLKOUT0 GPS_CAL STBY VOUT GPS_PWR_ON LDO 2.8V REGPU G6 REGPU LGE Internal Use Only - 17 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 173: Circuit Diagram
RFIN2 RFOUT2 RFIN1 RFOUT1/4 RFOUTH RFGND1/2 RFOUT5 RFOUTL C2004 C2003 4.3p RFIN4 LNA_CTRL1 C2005 C2007 LNA_CTRL2 L120 8.2n LGE Internal Use Only - 173 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 174 Close to X101 need to apply 43.2ohm, 1% IFX_USB_VBUS_EN (Active high connected to default pull down GPIO of AP20H) PT201 LGE Internal Use Only - 174 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 175 SC310 VSSQ2 MEM_RD_N VSS5 MEM_WR_N VSSQ6 MEM_CLE_N VSSQ7 MEM_ALE_N VSS6 MEM_WP SC313 SC314 VSS7 MEM_BUSY SC311 SC312 1.8V_SD LGE Internal Use Only - 175 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 176 VOL_KEY_DOWN R451 R452 VOL_KEY_UP 2'b10 ARM7 only JTAG GMI_OE_N 4.7K 4.7K 2'b11 Bypass ARM JTAG disabled VCC_IO_1V8 VCC_TOUCH_1V8 LGE Internal Use Only - 176 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 177 TEMP_PWROFF_N THERM VCC_USB_3V3 VCC_HDMI_3V3 VCC_DDRx_3V3 VCC_PLL_1V1 VCC_VI_1V8 PWR_ON_SW Q501 R519 APTEMP_PWROFF_N R515 100K Q500 VCC_IO_1V8 TEMP_PWROFF_N R514 100K LGE Internal Use Only - 177 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 178 GND11 PCB_VER_ADC 150K 150K 1.8V VCC_BBAT GND12 150K 300K 1.8V Rev.1.0 150K 470K 1.8V Rev.1.1 150K 680K 1.8V LGE Internal Use Only - 178 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 179 VCC_VGA_HDMI_5V0 NC28 NC137 V_POWERRAIL NC29 NC138 AH11 NC30 NC139 U702 L701 4.7u VOUT HDMI_REG_EN _SHDN C709 C710 4.7u LGE Internal Use Only - 179 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 180 2.2u LDOA LSENSOR_BIAS SBIAS LDOB LSENSOR_SENS AMB_IN LDOC IN_LDO LDOD C825 2.2u C822 C823 C824 2.2u 2.2u 2.2u LGE Internal Use Only - 180 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 181 C921 SPK_P USB_DM 0.1u C907 C908 C909 SPK_N USB_DP R902 10K R903 10K VOL_KEY_UP USB_ID VOL_KEY_DOWN D901 D902 LGE Internal Use Only - 181 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 182 C1030 TP1009 VCC_IO_1V8 2.2u C1031 R1015 Q1001 C1032 120p 50PIN_EJ_MIC HOOK_ADC R1017 EARJACK_SENSE R1023 HOOK_DET 50PIN_EAR_SENSE C1035 0.1u LGE Internal Use Only - 182 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 183 U1105 DNC1 DNC4 IME_DA IME_DA MOTION_INT DNC2 VCC_SENSOR_1V8 VCC_SENSOR_3V0 DNC3 VCC_SENSOR_3V0 C1120 C1121 0.1u C1119 0.1u C1122 0.1u LGE Internal Use Only - 183 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 184 2.2u GND1 C1236 R1212 C1233 C1237 GPS_26MHz GND2 GND1 C1238 26MHz CLK_IN GND2 X1202 KT3225L38400UCW28TA0 C1239 38.4MHz 2.2uF LGE Internal Use Only - 184 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 185 U101 CN102 HALL_INT FLASH_LED_ANODE C107 FLASH_LED_CATHODE 0.1u TP102 UART2_TX_AP20 TP103 UART2_RX_AP20 TP104 PWR_ON_SW TP105 VA101 VA102 V_POWERRAIL TP106 LGE Internal Use Only - 185 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 186 USB_DP MICBIAS MIC_GND MIC1P SPK_P USB_DM SPK_N USB_DP USB_ID VOL_KEY_UP USB_ID VOL_KEY_DOWN VA105 VOL UP/DOWN KEY VOL_KEY_DOWN VOL_KEY_UP LGE Internal Use Only - 186 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 187 LEDC C101 C102 R102 U102 VOUT LSENSOR_SENS IOUT LSENSOR_BIAS C104 C105 C103 GND1 0.1u 4.7u PWR_ON_SW PROXI_OUT VA104 LGE Internal Use Only - 187 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 188: Bga Pin Map
8. BGA PIN MAP U101 PMB5703(Transceiver) 8. BGA PIN MAP U101 PMB5703(Transceiver) Not Used Used LGE Internal Use Only - 188 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 191 8. BGA PIN MAP U302 H8TBR00U0MLR : LPDDR2 memory(512MB), POP Not Used Used LGE Internal Use Only - 191 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 193 8. BGA PIN MAP U602 MAX8907C(PMIC) U602 MAX8907C(PMIC) Not Used Used LGE Internal Use Only - 193 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 194 8. BGA PIN MAP U701 Toshiba 8G NAND Flash U701 Toshiba 8G NAND Flash Not Used LGE Internal Use Only - 194 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 198: Pcb Layout
- no CP USB/UART port - no Gyro sensor - no AP UART port - no compss sensor LG-P990_SPFY0240601_1.0_PLACE_TOP LGE Internal Use Only - 198 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 199 - no power On SW101 : Coaxial Conn. U1107 : Compass sensor. - no Service - no compass sensor LG-P990_SPFY0240601_1.0_PLACE_BOT LGE Internal Use Only - 199 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 202 9. PCB LAYOUT LG-P990_RF_LOWER_SPCY0254701_1.0_TOP LG-P990_RF_LOWER_SPCY0254701_1.0_BOT LGE Internal Use Only - 202 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 204: Calibration
10. CALIBRATION 10. CALIBRATION 10.1 Configuration of Tachyon 10.1.1 Configuration of directory LGE Internal Use Only - 04 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 205 It consists of default values. ‘MODEL NAME’_NV.INI It is written when ‘cal&auto’ is begun. ‘MODEL NAME’_Sequence.XML It is described a testing procedures. LGE Internal Use Only - 05 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 206: How To Use Tachyon
Click the icon, in tool bar. Then, you can see the below screen. b. Select Model “LGP990” LGE Internal Use Only - 06 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 207 Select the buyer (must be double clicked) Then, you can see “PASS” in Config File Check. e. Click select button LGP990 LGP990 LGP990 LGP990 LGP990 LGP990 LGP990 LGP990 LGP990 LGE Internal Use Only - 07 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 208 - Test command send. ) Calibration 3) Auto test 4) After action - Phone reset - Change UE to AMSS LGE Internal Use Only - 08 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 209: Stand Alone Test
Sound Test Touch Test Vibrator Test Wifi Scan Test Gyro Cal Test EMI Test HDMI Test Touch LED Brightness LGE Internal Use Only - 09 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 210 - Far 1.0 - Near 0.0 Check the “Auto brightness mode” - ALC level changed due to the brightness LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 211 -> Secondary Camera Preview -> Touch Flashlight Preview Camera Test 1 Primary Camera Preview Camera Test Secondary Camera Preview LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 212 Menu key : Check Recognition Home key : Check Recognition Back key : Check Recognition Search key : Check Recognition Compass test LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 213 - Red, Green, Blue, White Display - Red ,Green, Blue, Black Display Touch window test Write with finger Ring test LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 214 11. STAND-ALONE TEST Vibrator test A case-by-state vibration tests Wifi Scan test Gyro Sensor test LGE Internal Use Only - 14 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 215 Automatic Mode: Test Automatically Manual Mode : Test selectivity ELT Test Automatic Mode : LCD Automatic on/off test -> time setting LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 216 Format External SD card : External SD Card Data reset Format Internal SD card : Internal SD Card Data reset Factory Rest :Changing the Factory LGE Internal Use Only - 16 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 217 LCD Always ON Hidden Reset USB mode selection Reboot CP/AP SMPL count Charging Test WLAN Test WLAN performance on SW LGE Internal Use Only - 17 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 219 11. STAND-ALONE TEST Port Setting Select -> OK Browser Utility AT Test LGE Internal Use Only - 19 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 220 GSM A5 Algorithm Protocol Test GCF Flag Arm9 Log ON/Off GPS Test SMS Test SMS Test ->Automatic Memfull Test LGE Internal Use Only - 0 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 221 GSM A5 Algorithm Protocol Test GCF Flag Arm9 Log ON/Off WPS test SMS Test SMS Test ->Automatic Memfull Test LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 222 11. STAND-ALONE TEST DRM Test FM radio Test Input the Freq. & Volume VT memu LGE Internal Use Only - - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 224: Exploded View & Replacement Part List
Cover Assembly,Front SNGF00 MBJZ01 Button MPBG00 MBJZ02 Button SVLM00 EAD00 SBPL00 Rechargeable Battery,Lithium Ion SUMY01 AFBZ00 ACGA00 Cover Assembly,Battery LGE Internal Use Only - 224 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 225: Replacement Parts
(empty), , , , , COMPLEX LG-P990 ORF ZZ:Without Color MOLD, PC MCCZ00 Cap, HDMI MCCZ0047301 LUPOY SC-1004ML, , , , , LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 226 Tempered Glass, , , , , GMEY0009201 BH + 2.7mM 3.5mM MSWR3 FZB N N LG GMEY00 Screw, Machine GMEY0009201 ELECTRONICS INC. GMEY0012901 FH + 1.4mM 2.5mM MSWR NI PLT N - LG GMEY01 Screw, Machine GMEY0012901 ELECTRONICS INC. PCB Assembly, SAFY00 SAFY0392801 LGP990.AORFZY 1.0 MAIN...
Page 227 Main, SMT Top Can Assembly, ACKA00 ACKA0035001 LG-P990 ORF ZZ:Without Color COVER2 Shield MBK070301 CAN, SHIELD MCBA0090901 LG-P990 ORF ZY, ZZ, PRESS, STS, , , , , COMPLEX LG-P990 ORF ZZ:Without Color PRESS, STS, MCBA00 Can, Shield MCBA0093401 , , , , SPFY0240601 LGP990.AORFZY F FR-4 - - 0.8mm MAIN...
Page 228 MCCZ00 MCCZ0048101 (empty), , , , , COMPLEX LG-P990 ORF ZZ:Without Color COMPLEX, MCCZ01 MCCZ0047101 (empty), , , , , GMEY0009201 BH + 2.7mM 3.5mM MSWR3 FZB N N LG GMEY00 Screw, Machine GMEY0009201 ELECTRONICS INC. FAB00 Screw, Machine FAB31219601 BH + 1.4mM 2.5mM SWRCH18A ZN N A...
Page 229 Remark COMPLEX LG-P990 ORF ZZ:Without Color COMPLEX, MBFZ00 Bracket MBFZ0058101 (empty), , , , , COMPLEX LG-P990 ORF ZZ:Without Color MOLD, PA 6 MDQ000000 Frame MFEZ0041101 LUMID GP-2330A, , , , , TX10D07VM0BAA Main, 4.0", 480*800, 96.6*56.34*1.94T, SVLM00 LCD, Module-TFT SVLM0042001 262K, TFT, TM, TA8851A, HITACHI DISPLAYS., LTD...
Page 230 APLY0003203 KE500 AREBK BK, ZZ, TDR TR1-1 ORG STD Palletizing MBEC00 Box, Carton MBEC0003001 COMPLEX KU250 TMDBK ZZ:Without Color - LGE Internal Use Only - 30 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 231 MOLD LUPOY GP-2102 LG-P990 ORF DW:DARK MCJA00 Cover, Battery MCJA0122702 BROWN MOLD, PC LUPOY SC-1004ML, , , , , LGE Internal Use Only - 31 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 232: Main Component
1005 R/TP - NEOTECH CO., LTD MCR01MZP5F4703 470KOHM 1% 1/16W 1005 R/TP - R622 Resistor, Chip ERHZ0000288 ROHM. LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 233 55TO+85C 0603 R/TP - TDK CORPORATION C303, C304, C305, C306, C307, C501, C502, C503, C510, C512, C514, C515, C516, C518, C519 LGE Internal Use Only - 33 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 234 Ceramic, Chip 55TO+85C 0603 R/TP - TDK CORPORATION C667, C805, C806, C807, C810, C916, C917, C918, C919, C920, C921 LGE Internal Use Only - 34 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 235 GRM188R60J106M 10000000 pF, 6.3V, M, X5R, TC, Capacitor, C641, ECCH0005604 1608, R/TP, 0.8 mm MURATA MANUFACTURING CO., Ceramic, Chip C644 LTD. LGE Internal Use Only - 35 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 236 CO., LTD. Capacitor, C1005C0G1H101JT 100pF 5% 50V NP0 -55TO+125C C1209 ECZH0000813 Ceramic, Chip 1005 R/TP - TDK KOREA COOPERATION LGE Internal Use Only - 36 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 237 FL810, ICVE10184E150R101FR ESD/EMI 0HZ 15pF 0H SMD FL811, Filter, EMI/Power SFEY0010501 R/TP INNOCHIPS TECHNOLOGY FL812, FL813, FL901, FL902 LGE Internal Use Only - 37 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 238 C1005X5R1A105KT000F 1uF 10% 10V X5R -55TO+85C ECZH0001215 C213, Ceramic, Chip 1005 R/TP - TDK KOREA COOPERATION C809, C828, C901 LGE Internal Use Only - 38 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 239 Capacitor, GRM033R71C102K 1nF 10% 16V X7R -55TO+125C 0603 ECZH0025920 C767 Ceramic, Chip R/TP - MURATA MANUFACTURING CO., LTD. LGE Internal Use Only - 39 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 240 1.7VTO1.95V 12.0x12.0x0.86 TR 168P DRAM FBGA 4Gb U302 IC, MCP, NAND EUSY0424401 LPDDR2 PoP (12x12/168ball/400MHz) HYNIX SEMICONDUCTOR INC. LGE Internal Use Only - 40 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 241 BU28TD4WNVX SSON004, 4, R/TP, 2.8V 150mA Single IC, LDO Voltage U1204 EUSY0407101 LDO, IC, LDO Voltage RegulatorIC, LDO Voltage Regulator Regulator ROHM. LGE Internal Use Only - 41 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 242 BLM18PG121SN1J 120 ohm 1.6X0.8X0.8 25% 0.05 ohm FB203 Filter, Bead SFBH0002302 2A SMD R/TP 2P 0 MURATA MANUFACTURING CO., LTD. LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 243 R/TP - NEOTECH CO., LTD COMPLEX LG-VN530 VRZ DW:DARK BROWN PRESS, CN101 Contact MCIZ0008201 BeCu, , 3.0, 1.5, 1.5, LGE Internal Use Only - 43 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 244 55TO+85C 0603 R/TP - TDK CORPORATION C228, C229, C302, C303, C304, C305, C306, C307, C501, C502, C503, C510 LGE Internal Use Only - 44 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 245 55TO+85C 0603 R/TP - TDK CORPORATION C546, C547, C548, C551, C552, C553, C555, C560, C563, C564, C567, C570, C574, C576 LGE Internal Use Only - 45 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 246 Capacitor, MCH155CN102KK 1nF 10% 50V X7R -55TO+125C 1005 C1204 ECCH0000143 Ceramic, Chip R/TP - ROHM Semiconductor KOREA CORPORATION LGE Internal Use Only - 46 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 247 R/TP - MURATA MANUFACTURING CO., LTD. R414, R415, MCR006YZPJ473 47KOHM 5% 1/20W 0603 R/TP - R416, Resistor, Chip ERHY0009527 ROHM. R417, R418 LGE Internal Use Only - 47 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 248 CIM05J121NC 120 ohm 1.0X0.5X0.5 25% 0.3 ohm 0.5A FB1001, Filter, Bead EAM62131201 SMD R/TP 2P 0 SAMSUNG ELECTRO-MECHANICS FB1002 CO., LTD. LGE Internal Use Only - 48 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 249 Diode, TVS EDTY0008606 D902 DEVICES INC. MCR01MZP5F5101 5.1KOHM 1% 1/16W 1005 R/TP - R1113 Resistor, Chip ERHZ0000294 ROHM. LGE Internal Use Only - 49 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 250 6GHZ 8 SHIELD NONE 1.0X0.5X0.5MM R/TP MURATA Multilayer, Chip MANUFACTURING CO., LTD. R1220, Wire Pad, Open SAFO0000501 AX3100 ATL SV_SHIPBACK, MAIN, A, 0OHM_1005_DNI R619 LGE Internal Use Only - 50 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 251 LL1005-FHL8N2J 8.2NH 5% - 300mA 0.25OHM 4.7GHZ 9 L1203 ELCH0001426 Multilayer, Chip SHIELD NONE 1.0X0.5X0.5MM R/TP TOKO, INC. LGE Internal Use Only - 51 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 252 8OHM 150mW SC75A R/TP 3P ROHM. R404, R450, MCR006YZPF1003 100KOHM 1% 1/20W 0603 R/TP - R461, Resistor, Chip ERHY0009536 ROHM. R468, R517 LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 253 Ceramic, Chip 0603 R/TP - ROHM. U1106 IC, Motor Driver EUSY0238306 ISA1000 2.4~3.6V 150mV~300mV 0W DFN R/TP 8P - LGE Internal Use Only - 53 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 254 BCM4751IUB2G , 42, BCM4750 Shrink version 65nm, IC, U1202 IC, GPS EUSY0415301 GPS WLBGA R/TP 42P BROADCOM CORP LGE Internal Use Only - 54 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 255 Vctl 1.2+/-1.05V, 26, 1PPM, 2.5V, 2.5, 2.0, 0.8, SMD, R/TP VCTCXO DAISHINKU CORPORATION. SC313 CAN, SHIELD MCBA0090801 LG-P990 ORF ZY, ZZ, PRESS, STS, , , , , KT2520F26000ACW18TAK 26 MHz, 2 PPM, 10 pF, SMD, X1201 Oscillator, TCXO EXST0002501 2.5*2.0*0.8, 2ppm, 26, 1.8V, 2.5, 2.0, 0.8, SMD, R/TP KYOCERA CORP.
Page 256 MCR006YZPF4702 47KOHM 1% 1/20W 0603 R/TP - R512 Resistor, Chip ERHY0009550 ROHM. MCR01MZP5F20R0 20OHM 1% 1/16W 1005 R/TP - R101 Resistor, Chip ERHZ0000240 ROHM. LGE Internal Use Only - 56 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 257 CORPORATION EJ56-35R-4PBA-6S 1P 4P ANGLE R/TP 4mM BLACK 6P - J101 Jack, Phone ENJE0007602 HIROSE KOREA CO., LTD LGE Internal Use Only - 57 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 258 LD102, LED, Chip EDLH0015107 1200~1600mcd x, y 110mW - R/TP 2P - EVERLIGHT LD103, ELECTRONICS CO., LTD. LD104 LGE Internal Use Only - 58 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 259 EMB-LGE013STAC 3mW 16OHM 98DB 65HZTO112HZ EAB010200 Earphone, Stereo SGEY0007612 1.08M BLACK 3.5 L TYPE STEREO 4POLE PLUG - CRESYN CO., LTD LGE Internal Use Only - 59 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

LG -P990 Service Manual

1 Introduction

2 Performance

3 Technical Brief

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 Bga Pin Map

9 Pcb Layout

10 Calibration

11 Stand Alone Test

12 Exploded View & Replacement Part List

Quick Links

Troubleshooting

Need help?

Questions and answers

Related Manuals for LG LG-P990

Summary of Contents for LG LG-P990

Table of Contents