Page 1 Internal Use Only Service Manual LG-A395 Date: April, 2013 / Issue 1.0...
Page 2: Table Of Contents
4.7 LCD Trouble ..................... 69 4.8 Camera Trouble ..................73 4.9 Speaker Trouble ..................76 4.10 Earphone Trouble ................78 LGE Internal Use Only - 2 - Copyright © 2013 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. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 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. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 4 - Copyright ©...
Page 5: Abbreviations
Low Drop Output Light Emitting Diode OPLL Offset Phase Locked Loop LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 5 - Copyright © 2013 LG Electronics. Inc. All right reserved.
Page 6 Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 6 - Copyright ©...
Page 7: Performance
Vibrator Loud Speaker Voice Recoding Microphone LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 7 - Copyright © 2013 LG Electronics. Inc. All right reserved.
Page 8 1.3M FF Bluetooth / FM Radio Bluetooth version 2.1 / 76~108MHz supported LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 8 - Copyright ©...
Page 9: Technical Specification
±3dB 16dBm 0dBm ± 5dB ±3dB LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 9 - Copyright © 2013 LG Electronics. Inc. All right reserved.
Page 10 (due to switching transient) 1,200 1,800 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 10 - Copyright © 2013 LG Electronics. Inc. All right reserved.
Page 11 3,000 3,400 4,000 2±3 dB LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 11 - Copyright © 2013 LG Electronics. Inc. All right reserved.
Page 12 Ringer Volume 1. Ringer set as ringer. 2. Test distance set as 100 cm LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 12 - Copyright ©...
Page 13 Travel Charger Input: 1000 ~ 240 V, 50/60 Hz Output: 5.1 V, 700 mA LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 13 - Copyright ©...
Page 14: Technical Brief
3. TECHNICAL BRIEF 3. TECHNICAL BRIEF 3.1 Digital Main Processor Figure. 3.1.1 MT6255 Hardware Block Diagram LGE Internal Use Only - 14 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 15 • 2 external channel auxiliary 12 bit A/D converter 3.1.5 Security • Support security key and 128bit chip random ID LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 15 - Copyright ©...
Page 16 • Dedicated Rx filter for FB acquisition • 6-Pin Baseband Parallel Interface(BRI) with programmable driving strength • support Multi-band LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 16 - Copyright ©...
Page 17 • True color engine • Capable of combining display memories with up to 4 blending layers LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 17 - Copyright ©...
Page 18 • Supports EXIF/JFIF • Standard DC and AC Huffman tables • Provides 5 levels of encode quality LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 18 - Copyright ©...
Page 19 @ level 1 • ISO/IEC 14496-10 main/high profile : decode @ level 2. 1 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 19 - Copyright ©...
Page 20 • Linear transform : Support perspective transform, truncate/nearest/bi-linear sample filter • Command queue with max depth of 1024 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 20 - Copyright ©...
Page 21 • Embedded processor for Bluetooth protocol stack with built-in memory system • Fully verified ROM based system with code patch for feature enhancement LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 22 • 20dBuVemf(for SANT) or 19dBuVemf(for LANT) RDS sensitivity (dev: 2kHz) • More than 55dBc rejection capability against -200 kHz ACL LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 24 3.0V or 3.3V output which is selected by the register named VCAMD_SEL[2:0]. It supplies the digital power of the camera module. Vcamd is controlled independently by the register named RG_VCAMD_EN. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 24 - Copyright ©...
Page 25 Current Sink 6 x(24 mA,0.25V),Sharing(Individual Current BLED_EN ISINK0~5 / Enable control) GLED_EN 4/8/12/16/20/24 mA RLED_EN Table3.2.1. Power Supply Domains LGE Internal Use Only - 25 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26 The delay time is controlled by a large counter, which use clock from internal ring-oscillator. At power-off, RESETB pin will return to low immediately without any delay. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 27: Fem With Integrated Power Amplifier Module (Rf7182)
The RF7182 also integrates an ESD filter to provide excellent ESD protection at the antenna port. TheRF7182 is designed to provide maximum efficiency at rated POUT. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 28 GND2 C462 100p U400 (50ohm) HighBand_Tx RFIN_HB GND1 (7/3) DC Blocking C451 C452 Figure 3.3.2 RF-module CIRCUIT DIAGRAM LGE Internal Use Only - 28 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 29: Clocks
C145 Figure. 3.4.2 Crystal Oscillator External Connection LGE Internal Use Only Figure. 3.4.2 Crystal Oscillator External Connection Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 29 - Copyright ©...
Page 30 However the penalty is losing a little system efficiency for switching on and off bus clock, but the impact is small LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 31: Rfsys Of Mt6253 (U101)
=700kHz 96 dB dynamic range ADC 24 dB PGA gain with 6 dB gain Step LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 31 - Copyright ©...
Page 32  3-wire serial interface  CMOS process technology  41 balls(incl.24 GND balls) of RFSYS in TFBGA package LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 32 - Copyright ©...
Page 33: Memory(H9Da1Gh25Hbmmmr, U100 )
I/O buffers to be read. This feature is implemented according to ONFI 1.0 specification. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 34 Figure. 3.6.1 LOGIC DIAGRAM Table 3_6_1 Signal Names Table 3_6_1 Signal Names LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 34 - Copyright ©...
Page 35 REGISTER IO0~IO15 Figure. 3.6.2 BLOCK DIAGRAM Figure. 3.6.2 BLOCK DIAGRAM LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 35 - Copyright © 2013 LG Electronics. Inc. All right reserved.
Page 36 - 50,000 Program / Erase cycles (with 4bit/512+16 Byte ECC) • DATA RETENTION - 10 years LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 36 - Copyright ©...
Page 37: Sim Card Interface
SIM1 (SW must be careful) J204 R240 SIM_4_RST SIM_4_DATA SIM_4_CLK GND1 GND4 GND2 GND3 VA208 C243 VA209 VA210 C241 C242 C244 LGE Internal Use Only - 37 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 R278, R279, R280, R281, R282, R283, R284, R285 : DNI U202, C237, C238, C239, C257, C258, C259, C260 : Install LGE Internal Use Only - 38 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 39 SIMRST is used as the SIM card reset signal. Besides, SIMDATA and SIMCLK are used for data exchange purpose. A395 is using U202 as SIM controller to be able to use Quad SIM. Figure 3.7.3 SIM Interface block diagram Figure 3.7.3 SIM Interface block diagram...
Page 40 Figure 3.8.2 SIM Interface block diagram Figure 3.7.4 MT6306 Block diagram Figure 3.7.4 MT6306 Block diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 40 - Copyright ©...
Page 41: Micro-Sd Card Interface
Furthermore, the controller also support SDIO card specification version 1.0 partially. However, the controller can only be configured as either the host controller. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 42: Lcd Interface
8 bit. LGE Internal Use Only LGE Internal Use Only - 42 - Copyright © 2007 LG Electronics. Inc. All right reserved. Copyright © 2013 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 43 LGE Internal Use Only - 43 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved.
Page 44: Battery Charger Interface
The RT9536 is available in a WDFN-10L 3x2 package to achieve optimized solution for PCB space and thermal considerations. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 45: Keypad Interface
VA314 KB307 (10/12) Changed END_KEY VA303 R366 KEY_COL4 VA315 Added for ESD (8/21) Figure 3.11.1 MAIN KEY STRUCTURE LGE Internal Use Only - 45 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 The keypad can be divided into two parts: one is the keypad interface including 7 columns and 6 rows(A395 is using 5columns and 5rows) with one dedicated power-key, as shown in Figure 3.11.2; the other is the key detection block which provides key pressed, key released and de-bounce mechanisms.
Page 47: Audio Front-End
See the table below for the functional specifications of voice-band uplink/downlink blocks See the table below for the functional specifications of voice-band uplink/downlink blocks. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes...
Page 48 See the table below for the functional specifications of audio blocks. Figure 3.13.2 Functional specifications of analog voice blocks LGE Internal Use Only - 48 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 49: Camera Interface
2-wire I2C bus interface. The YACC6A1SBDBS, which needs a single master clock(48Mhz(Max)), is suitable for low power camera module with 2.8V/1.8V power supply. LGE Internal Use Only - 49 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 • Internal PLL • Operating temperature: -20°C to +60°C • Supply voltage: 2.8V / 1.8V LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 50 - Copyright ©...
Page 51: Key Baclklight Led Interfac
KEY_BL0 C319 Figure 3.14.1 Key Backlight Block Figure 3.14.1 Key Backlight Block LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 51 - Copyright ©...
Page 52: Vibrator Interface
Figure 3.15.1 Vibrator Driver Block Changed (9/10) Added (9/10) Figure 3.15.1 Vibrator Driver Block LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 52 - Copyright ©...
Page 53: Trouble Shooting
Main Chip (MT6255) U400 TX Module (RF7182) Memory(2G/1G DDR) U100 H9DA2GH1GHMMMR-46M X101 Crystal, 26MHz Clock X102 Crystal, 32.768MHz Clock LGE Internal Use Only - 53 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54: Rx Trouble
(1) Check Crystal Circuit (2) Check Mobile SW &TX module (3) Check PLL Control Re-download SW or Do calibration again LGE Internal Use Only - 54 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 55 MICBIAS1 MICBIAS0 C132 26 MHz Replace TP1 O.K? Crystal is OK. See next page to check PLL Circuit LGE Internal Use Only - 55 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56 6.8n C460 L455 3.9n HB_RxN Changed (9/26) (7/27) (7/18) coil -> non_coil (7/27) 0603 -> 1005 (12/28) Changed LGE Internal Use Only - 56 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 57 Mobile SW & TX Module is OK. TX Module Mode Tx ENABLE GpCtrl1 GpCtrl0 RX 0 RX 1 GSM850/900 TX Mode DCS1800/PCS1900 TX Mode LGE Internal Use Only - 57 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58: Tx Trouble
Crystal Circuit (2) Check Mobile SW &Tx module (3) Check PLL Control Redownload SW or Do calibration again LGE Internal Use Only - 58 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 59 MICBIAS1 MICBIAS0 C132 26 MHz Replace TP1 O.K? Crystal is OK. See next page to check PLL Circuit LGE Internal Use Only - 59 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60 6.8n C460 L455 3.9n HB_RxN Changed (9/26) (7/27) (7/18) coil -> non_coil (7/27) 0603 -> 1005 (12/28) Changed LGE Internal Use Only - 60 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 61 Mobile SW & TX module is OK. TX Module Mode Tx ENABLE GpCtrl1 GpCtrl0 RX 0 RX 1 GSM850/900 TX Mode DCS1800/PCS1900 TX Mode LGE Internal Use Only - 61 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62: Power On Trouble
Close to IC RESETB RST_N R108 PWRKEY END_KEY C126 VREF C125 AVSS43_VRF 330p PMU_TESTMODE VCDT CHRLDO Figure 4.4.2 LGE Internal Use Only - 62 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 63 Is the phone power on? Re-download software Does it work properly? Replace the main board The phone will Properly operate. LGE Internal Use Only - 63 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64: Charging Trouble
PGND BATT U204 ISET GND1 CHGSB GND2 CHG_EN IEOC EN_SET C289 C275 0.1u 0.1u 50V internal voltage (10/31) LGE Internal Use Only - 64 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 65 Changed (8/27) USB_DM USB_DP ACC_ID D201 C272 C295 0.1u MTK recommend (9/10) Changed for Low voltage surge (12/3) LGE Internal Use Only - 65 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66 Replace the U501 at C275 of TP2 = 4.9V Battery is charged? Replace the main board Charging is properly operating LGE Internal Use Only - 66 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 67: Vibrator Trouble
Location is changed for RSE (11/9) Vibrator PAD VB300 TP 2 L301 (10/12) Changed VA330 D301 L302 C307 270n Changed (9/10) Added (9/10) LGE Internal Use Only - 67 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68 Check the state of TP3(C307) Voltage applied at TP1 Replace the L301 Replace the vibrator Vibrator Working well ! LGE Internal Use Only - 68 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70 LED1 PVIN LCD_LED_CA2 LED2 LCD_LED_CA3 I2C_SDA2 LED3 I2C_SCL2 LED4 NP0 --> X7R (8/27) C353 C352 C354 C355 (10V) LGE Internal Use Only - 70 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71 4. TROUBLE SHOOTING Graph 4.7.1. LCD Backlight Control Signal Waveform LCD_RS LCD_CS LCD_WR Graph 4.7.2. LCD Data Waveform LGE Internal Use Only - 71 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72 Re-download & check the State of U101 EMI filter ? Does LCD work properly ? Replace LCD module LCD working well ! LGE Internal Use Only - 72 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73: Camera Trouble
4. TROUBLE SHOOTING 4.8 Camera Trouble Camera module(TP1) Figure 4.8.1 LGE Internal Use Only - 73 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74 CAM_VSYNC CAM_DATA03 CAM_HSYNC CAM_DATA02 CAM_F_MCLK CAM_DATA01 CAM_DATA00 CAM_F_PCLK CAM_RESET CAM_PD (DIF_D8) VA312 VA313 VDD28_CAM Camera(TP1) (VIO_1V8) Figure 4.8.2 LGE Internal Use Only - 74 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75 U101 Does Camera work properly ? Replace the Camera or Change the board Camera working well ! LGE Internal Use Only - 75 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76: Speaker Trouble
4. TROUBLE SHOOTING 4.9 Speaker Trouble Figure 4.9.1 C264 CN200 (6/20) 1810, 3T, spring LGE Internal Use Only - 76 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 77 Check the state of Check the state of Replace/ Change TP1 (SPK) TP1 (SPK) Speaker Speaker Working well!! Working well!! LGE Internal Use Only - 77 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78: Earphone Trouble
4. TROUBLE SHOOTING 4.10 Earphone Trouble TP1(J200) Figure 4.10.1 LGE Internal Use Only - 78 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 79 VA200 VA201 M4-L C212 C213 M5-MIC J200 RS/CS (12/28) (6/28) C368 VA205 Changed (10/31) Changed (9/25) Changed (12/3) LGE Internal Use Only - 79 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80 Set the test instrument to echo mode Can you hear Change the earphone and try again Your voice? Earphone working well LGE Internal Use Only - 80 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 81: Receiver Trouble
4. TROUBLE SHOOTING 4.11 Receiver Trouble Figure 4.11.1 C264 CN200 (6/20) 1810, 3T, spring LGE Internal Use Only - 81 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 Replace/ Change TP2 (IC401) Can you hear Check the state of TP1 the sound? Receiver will work properly. LGE Internal Use Only - 82 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 83: Microphone Trouble
4. TROUBLE SHOOTING 4.12 Microphone Trouble TP2 C228 TP1 C222 MIC200 Figure 4.12.1 LGE Internal Use Only - 83 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 Check the TP2 Change the microphone Signal While talking to mic ( TP3, MIC200) Microphone will work properly. LGE Internal Use Only - 84 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85: Sim Card Interface Trouble
4. TROUBLE SHOOTING 4.13 SIM Card Interface Trouble 4.13.1 SIM1 Card Interface Trouble J204 U202 LGE Internal Use Only - 85 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 R278, R279, R280, R281, R282, R283, R284, R285 : DNI U202, C237, C238, C239, C257, C258, C259, C260 : Install LGE Internal Use Only - 86 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 87 Change the main board Does it work Properly? Properly? SIM card is properly working SIM card is properly working. LGE Internal Use Only - 87 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88 4. TROUBLE SHOOTING 4.13.2 SIM2 Card Interface Trouble J201 U202 LGE Internal Use Only - 88 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 89 R278, R279, R280, R281, R282, R283, R284, R285 : DNI U202, C237, C238, C239, C257, C258, C259, C260 : Install LGE Internal Use Only - 89 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 Change the main board Does it work Properly? Properly? SIM card is properly working SIM card is properly working. LGE Internal Use Only - 90 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 91 4. TROUBLE SHOOTING 4.13.3 SIM3 Card Interface Trouble U202 J202 LGE Internal Use Only - 91 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 R278, R279, R280, R281, R282, R283, R284, R285 : DNI U202, C237, C238, C239, C257, C258, C259, C260 : Install LGE Internal Use Only - 92 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 93 Does it work Does it work Properly? Properly? SIM card is properly working SIM card is properly working. LGE Internal Use Only - 93 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94 4. TROUBLE SHOOTING 4.13.4 SIM4 Card Interface Trouble U202 J203 LGE Internal Use Only - 94 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 95 R278, R279, R280, R281, R282, R283, R284, R285 : DNI U202, C237, C238, C239, C257, C258, C259, C260 : Install LGE Internal Use Only - 95 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96 Does it work Does it work Properly? Properly? SIM card is properly working SIM card is properly working. LGE Internal Use Only - 96 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 97: Key Backlight Trouble
WHITE Top View LED (8/13) C300 C300 C301 LD300 LD301 LD302 LD303 LD304 LD305 Changed (8/8) KEY_BL0 C319 LGE Internal Use Only - 97 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98 VBAT = C300 ? TP1, TP2,TP3,TP4,TP5,TP6 Check the state of LED or U100 is Lower than C300? Backlight will work properly. LGE Internal Use Only - 98 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100 LED1 PVIN LCD_LED_CA2 LED2 LCD_LED_CA3 I2C_SDA2 LED3 I2C_SCL2 LED4 NP0 --> X7R (8/27) C353 C352 C354 C355 (10V) LGE Internal Use Only - 100 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 101 Is MC_CLK & Data Timing Correct? Re-download SW Change the Micro SD Card Micro SD Card will work properly LGE Internal Use Only - 101 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102: Bluetooth Trouble
4. TROUBLE SHOOTING 4.16 Bluetooth Trouble FL402 LGE Internal Use Only - 102 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 103 2.2n C169 0.5p FEED (50ohm) C168 C165 C166 2.5p FL402 DSBTPTR2010 ANT100 FL402 component changed (9/10) CHANGED 7/27 LGE Internal Use Only - 103 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 104 4. TROUBLE SHOOTING W12,AC14,AA12: Star Connection FB101 Close to IC changed (12/3) Close to IC Close to IC C170 (6/26) LGE Internal Use Only - 104 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 105 Give the additory solder in TP1,TP2 A condition is good? Check Bias Voltage Replace U101 VBAT at TP3, TP4 BT will work properly LGE Internal Use Only - 105 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 106: Fm Radio Trouble
M1-R FB211 1800 M4-DETECT J200 VA202 M4-L M5-MIC J200 RS/CS (12/28) (6/28) C368 VA205 Changed (9/25) Changed (12/3) LGE Internal Use Only - 106 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 107 External 32k : B14 -> GND GND_BT should connect together and then connect to main GND Internal 32k : B14 -> VRTC U100 LGE Internal Use Only - 107 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 108 A condition is good? solder in TP1, TP2 Check Bias Voltage Replace U101 TP3, TP4 FM_radio will work properly LGE Internal Use Only - 108 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 109: Download
Release 2011.11.01 Please Check the Version to “B2B” Name Part No. D/L Cable Micro 5P (56-open-910K) USB DLC RAD32167835 LGE Internal Use Only - 109 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 111 5. DOWNLOAD A395 MS695 [LGFLASHv151]LGA395_20130319_Download [LGFlashTool1.3.77.21]LGMS695_20120208_Download A395 [LGFLASHv151] LGE Internal Use Only - 111 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 122 5. DOWNLOAD [LGFLASHv151]]LGA395_20130319_Download [LGFlashTool1.3.77.21]LGMS695_20120208_Download LGA395_20130319.dll LGMS695_20120208.dll LGA395_130319 LGMS695_20120208 A395 MS695 [LGFLASHv151]LGA395_20130319_Download [LGFlashTool1.3.77.21]LGMS695_20120208_Download A395-011-V10c-310-410-OCT-19-2011+0.im MS695 A395 MS695 LGE Internal Use Only - 122 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 129: Block Diagram
Crystal (MTK) BT Antenna Balun SIM 3 Antenna SIM 4 RF Module MEMORY NAND 1Gbits DDRAM 256Mbits (Hynix) LGE Internal Use Only - 129 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130 6. BLOCK DIAGRAM ■ A395 Block Diagram “RF/BT/FM” A395 Block Diagram “Audio” LGE Internal Use Only - 130 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 131 RT9367 VCAMD RLED_EN ISINK0 GLED_EN Message Camera RF Module ISINK1 Blinker BLED_EN ISINK2 Module VCAMA VCAMA VCAMIO_1V8 VCAMIO_1V8 LGE Internal Use Only - 131 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132 MT6203 Camera I2C_SCL1 I2C_SDA1 Module MT6255 I2C_SCL2 Backlight Charge Pump RT9367 I2C_SDA2 Audio I2C_SCL2 Sub System IC401 I2C_SDA2 LGE Internal Use Only - 132 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 133 LPCE0B - 2.2” QVGA MT6255 EMI FILTER LCD_WR_N SFEY0012501 LWRB LCD_VSYNC LPTE LCD_ID LSA0 LCD_RD_N RLDB LCD_RST_N LRSTB LGE Internal Use Only - 133 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134 CAM_DATA[6] CMDAT6 1.3M Camera SFEY0015501 CAM_DATA[7] CAM_DATA[7] CMDAT7 I2C_SCL1 I2C_SDA1 CAM_PWDN CMPDN CAM_MCLK CMMCLK CAM_PCLK CMPCLK CAM_RST_N CMRST LGE Internal Use Only - 134 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 135: Circuit Diagram
PCB_REV C169 0.5p FEED (50ohm) C168 R2 (1%) C165 C166 FL402 DSBTPTR2010 2.5p component changed (9/10) CHANGED 7/27 - 135 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136 R278, R279, R280, R281, R282, R283, R284, R285 : DNI VA208 C243 VA209 C241 C242 C244 VA210 U202, C237, C238, C239, C257, C258, C259, C260 : Install - 136 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 137 Changed (12/29) CAM_F_PCLK VA307 VA308 VA309 VA311 VA310 VA315 CAM_RESET Added for ESD (8/21) CAM_PD (DIF_D8) VA312 VA313 - 137 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 138 6.8n C460 L455 3.9n HB_RxN Changed (9/26) (7/27) (7/18) coil -> non_coil (7/27) 0603 -> 1005 (12/28) Changed - 138 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 139: Bga Pin Map
MT6255TFBGA 12.5mm x 12.5mm, 382ball : not in use : not in use LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 139 - Copyright ©...
Page 140 130bal 8.0X9.0 MCP(x16 SLC NAND + x16 DDR400) 130bal 8.0X9.0 MCP(x16 SLC NAND + x16 DDR400) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 : not in use Only for training and service purposes...
Page 141: Pcblayout
- no Key backlight on KB306 KB303 KB304 KB302 KB308 KB309 KB310 KB313 KB314 KB315 KB319 KB317 KB318 LG-A395_EAX65163601_1.0_MAIN_TOP - 141 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 142 VA200 C213 C215 VA203 L103 CN200 : SPK & RCV PAD C368 VA205 J200 - no SPK&RCV LG-A395_EAX65163601_1.0_MAIN_BOT - 142 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 143: Engineering Mode
[7-4-8] Memory info [7-4-9] FM radio [7-4-10] TST output mode [7-4-11] PMU register setting LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 143 - Copyright ©...
Page 144 [7-12-1] Real NW [7-12-2] CTA [7-12-3] FTA [7-12-4] IOT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. / 131 Only for training and service purposes LGE Internal Use Only - 144 - Copyright © 2013 LG Electronics. Inc. All right reserved.
Page 145: Calibration
2. Port Setting (Refer to Attached image) 1) Uart Port1 : Use the “LGE CDMA USB Serial Port” LGE Internal Use Only - 145 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 147 11. CALIBRATION A395 MS695 [TachyonV43] LGA395 20130417 ALL file Calibration [Tachyon36]LGMS695_20120213_Calibration A395 LGE Internal Use Only - 147 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150 11. CALIBRATION A395 MS695 LGA395 LGA395 A395 MS695 A395 MS695 MS695 A395 MS695 A395 MS695 A395 MS695 LGE Internal Use Only - 150 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154 11. CALIBRATION MS-156C BJAY0024004 MS-156C 5.3V RAD32167861 BJAY0023732 LGE Internal Use Only - 154 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 162 A395 MS695 MS695 LG-A395 MS695 LG-A395 MS695 MS695 LGA395 MS695 MS695 LGA395 MS695 LGA395 LGA395 MS695 LGA395 MS695 LGE Internal Use Only - 162 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 165: Hidden Menu
Start shortcut keys: 3845#*395# Hidden Menu Start the desired menu: Menu, OK button click Version Info Shows SW Version Info LGE Internal Use Only - 165 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166 -> All Auto Test - Full All Auto Test Result -> You can check Test Results for all the test cases LGE Internal Use Only - 166 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 167 Home key : Hard Key Back key : Touch Key Camera Test – Snapshot Captured image after clicking Ok LGE Internal Use Only - 167 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 168 Video of 5 seconds is playing after captured LCD Display Test Check Black and White color Sound Test Click the “PASS” or “FAIL” icon LGE Internal Use Only - 168 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 169 Click the “PASS” or “FAIL” icon BT Test Bluetooth Scanning is PASS : OK Acoustic Loopback Receiver mode is activated LGE Internal Use Only - 169 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 170: Exploded View & Replacement Part List
Can Assembly,Shield ABM00 EAA00 PIFA Antenna,Multiple Bracket Assembly ABA00 EAB00 Speaker,Dual Mode LCD Module EAJ00 MBL00 Screw,Machine GMEY00 - 170 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 171: Replacement Parts
MOLD PC LGA395.ABRASV ZZ:Without Color MCK032700 MCK67570002 Front A395 Cover Front (SV) Damper MCQ043300 MCQ67200401 COMPLEX LGA395.ABRABK ZZ:Without Color - LGE Internal Use Only - 171 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 172 4 Array PRINTING, MEV000000 Insulator MEV64301201 COMPLEX LGA395.ABRABK ZZ:Without Color - MJN000000 Tape MJN68427501 COMPLEX LGA395.ABRABK ZZ:Without Color - LGE Internal Use Only - 172 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 173 Battery A395 Cover Battery (SV) Label COMPLEX LGE400F.AVIVBK ZZ:Without Color MEZ000900 MEZ64503701 After Service E400F BRAZIL SAC LABEL LGE Internal Use Only - 173 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 174 HK1005 27NJ 27NH 5% - 300mA 0.7OHM 1.6GHZ Inductor C413 ELCH0005005 8 SHIELD NONE 1.0X0.5X0.5MM R/TP TAIYO Multilayer,Chip YUDEN CO.,LTD LGE Internal Use Only - 174 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 175 C1005X5R1A105KT000F 1uF 10% 10V X5R - C300 Capacitor ECZH0001215 55TO+85C 1005 R/TP - TDK KOREA C301 Ceramic,Chip COOPERATION LGE Internal Use Only - 175 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 176 ICVS0505500FR 5.6V 0% 50F 1.0*0.5*0.55 - SMD Varistor SEVY0005402 VA314 R/TP INNOCHIPS TECHNOLOGY VA315 VA318 VA319 VA320 VA331 VA332 LGE Internal Use Only - 176 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 177 C1005C0G1H101JT 100pF 5% 50V C0G - Capacitor C417 ECZH0000813 55TO+125C 1005 R/TP - TDK KOREA Ceramic,Chip C461 COOPERATION C462 LGE Internal Use Only - 177 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 178 COOPERATION R113 R114 R115 MCR01MZP5J222 2.2KOHM 5% 1/16W 1005 R/TP R116 Resistor,Chip ERHZ0000443 - ROHM. R218 R219 R223 LGE Internal Use Only - 178 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 179 1005 R/TP - ROHM Semiconductor KOREA Ceramic,Chip CORPORATION GRM188R60J106M 10000000 Capacitor C222 ECCH0005604 pF,6.3V,M,X5R,TC,1608,R/TP,0.8 mm MURATA Ceramic,Chip MANUFACTURING CO.,LTD. LGE Internal Use Only - 179 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 180 ERHZ0000545 R209 ROHM. GB042-24S-H10-E3000 24P 0.40MM STRAIGHT CN302 Connector,BtoB ENBY0034201 SOCKET SMD R/TP 1M - LS Mtron Ltd. LGE Internal Use Only - 180 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 181 J202 Socket HSSC-6P-27_N 6P STRAIGHT STANDARD SMD EAG63373601 J203 DIMM/SIMM T/REEL - HAN SHIN TERMINAL CO., LTD. J204 LGE Internal Use Only - 181 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 182 BLM15BD182SN1D 1800 ohm 1.0X0.5X0.5 25% FB207 Filter,Bead SFBH0008105 1.4 ohm 0.1A SMD R/TP 2P 0 MURATA FB210 MANUFACTURING CO.,LTD. FB211 LGE Internal Use Only - 182 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 183 GRM1555C1H2R5C_H 2.5pF 0.25PF 50V C0G - Capacitor(High 55TO+125C 1005 R/TP 0.5+/-0.05 L:1.0+-0.05 C168 Frequency) EAE62883001 W:0.5+-0.05 T:0.5+-0.05 MURATA Ceramic,Chip MANUFACTURING CO.,LTD. LGE Internal Use Only - 183 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 184 SD CARD 11.0x15.0x1.0MM TR 8P 2GB MicroSD EAN011400 Memory Card EAN62634801 Card (SEC 21nm 16Gb TLC x 1) KINGMAX MICRO SD DIGITAL INC. LGE Internal Use Only - 184 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 185: Accessory
AFN053800 AFN75934801 LGA395.ABRABK ZZ:Without Color - Operation Manual PRINTING LGA395.ABRABK ZZ:Without Color MFL053800 MFL67787701 Operation Brazil PORTUGUESE - LGE Internal Use Only - 185 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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