Page 1 Internal Use Only Service Manual LG-D337 Date: Aug, 2014 / Issue 0.9...
Page 2: Table Of Contents
3.16. Vibrator Trouble Shooting ............104 3.17. 8M Main Camera TS ................106 3.18. VT Camera TS ..................108 3.19. Main LCD TS ..................110 LGE Internal Use Only - 2 - Copyright © 2014 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. LGE Internal Use Only - 4 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 5: Performance
: 1850 – 1910 MHz PCS1900 RX : 1930 – 1990 MHz Application Standard WAP 2.0 LGE Internal Use Only LGE Internal Use Only - 5 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 6: Main Parts & Solution
PCS 1900 : -105 dBm DCS 1800 : -105 dBm PCS 1900 : -105 dBm LGE Internal Use Only - 6 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 7 Data & Fax Built in Data & Fax support Vibrator Built in Vibrator BlueTooth V4.0 LGE Internal Use Only - 7 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 8 @ Max Power Avg. Talk current @GSM Level 5 Under 400 mA @ Tx -10dBm Avg. LGE Internal Use Only - 8 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 9: Sw Features
It depends on available memory amount. Fixed Dial Number Service Dial Number Own Number My Profile (add/edit/delete are LGE Internal Use Only LGE Internal Use Only - 9 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10 There is no limitation on the number of items. It depends on available memory amount. LGE Internal Use Only - 10 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 11 Hold / Retrieve Conference Call Max. 6 DTMF Memo pad SyncML Google Hangout Email LGE Internal Use Only - 11 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 12: Hw Spec
AM Suppression GSM : -31dBm -98dBm/-96dBm (2.439%) DCS : -29dBm Timing Advance ± 0.5T LGE Internal Use Only - 12 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 13 < 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout ≥ -20 dBm LGE Internal Use Only - 13 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 14 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 - 14 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 15 > 43 dB @ ±10 MHz Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm LGE Internal Use Only - 15 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 16 Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0 (BLER or R), 16QAM Only BLER < 10% or R >= 700kbps LGE Internal Use Only - 16 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 17 ≥ -10dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8% Rx Adjacent Channel ≥ 35dB @FER ≤ 8%, Rejection interference input signal -70dBm@fc±25MHz(11Mbps) LGE Internal Use Only - 17 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 18 ※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 - 18 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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 © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 20 -106± 3dBm Bar 10 Bar 10 -106± 3dBm -106± 3dBm LGE Internal Use Only - 20 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only LGE Internal Use Only...
Page 21: Trouble Shooting
Test Points on the IQ Data Line. So It is impossible to check the IQ Data Wave form LGE Internal Use Only - 21 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 22 3.1.1 WCDMA_B1/B2/B5/B8 Rx MT6166 (U1500) SKY77761 (U1602) (FL1604) (FL1606) (FL1600) SKY77758 (U1600) (FL1602) SKY77589 (U1100) - 3 - LGE Internal Use Only - 22 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 23 +2V8_VTCXO_MTK is OK? Refer to Logic troubleshoot DC Power suppply circuit is OK. See naxt Page to check XO circuit. LGE Internal Use Only - 23 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 24 (+1V825_MTK_VRF ) MT6166 (U1500) TP3 : C1504 (+1V825_MTK_VRF ) Circuit Diagram C1500 - 5 - 2GHB_TX 2G_TX_HB 2GLB_TX 2G_TX_LB LGE Internal Use Only - 24 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 25 RF signal path . Replace Main B/D Replace Main B/D Waveform Figure 4.1.1 (a) - 6 - LGE Internal Use Only - 25 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26 TOL=0.01 GPS co-CLK Crystal PDET_IN OZ26000004 X1500 XTAL1 XTAL2 TST1 TST2 R1514 RCAL TOL=0.01 RFVCO_MON - 7 - LGE Internal Use Only - 26 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 27 FEM is OK. See next page to check DPX The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 27 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 28 ANT0_SW_SEL_2 PGND2 GND9 PGND3 PGND4 PGND5 PGND6 PGND12 PGND11 PGND10 R1104 ANT0_SW_SEL_1 C1112 R1105 ANT0_SW_SEL_0 - 9 - LGE Internal Use Only - 28 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 29 Figure 4.1.1 (b) Figure 4.1.1 (b) Figure 4.1.1 (c) Figure 4.1.1 (c) Figure 4.1.1 (c) - 10 - LGE Internal Use Only - 29 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30 All WCDMA_B1/B2/B5/B8 Rx check is complete. If the phone sill do not work ,replace main board LGE Internal Use Only - 30 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 31 Size changed to 0603(B,0519) FL1606 SFXG50UZ502 C1649 TX_MODULE_TRX1 L1640 L1641 GND1 1.5N GND2 GND5 GND3 GND4 EAM62732301 WISOL - 12 - LGE Internal Use Only - 31 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 32 Figure 4.1.1 (b) Figure 4.1.1 (b) Figure 4.1.1 (b) Figure 4.1.1 (c) Figure 4.1.1 (c) LGE Internal Use Only - 32 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes Figure 4.1.1 (c)
Page 33: Wcdma Tx Part
There are no Test Points on the IQ Data Line. So It is impossible to check the IQ Data Wave form LGE Internal Use Only - 33 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34 4. Trouble Shooting MT6166 (U1500) SKY77761 (U1602) (FL1604) (FL1606) (FL1600) SKY77758 (U1600) (FL1602) SKY77589 (U1100) - 15 - LGE Internal Use Only - 34 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 35 Refer to Logic troubleshoot +2V8VTCXO_MTK is OK? Dc powersupply Circuit is O.K. See next Page to check XO citcuit LGE Internal Use Only - 35 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36 (+1V825_MTK_VRF ) MT6166 (U1500) TP3 : C1504 (+1V825_MTK_VRF ) Circuit Diagram C1500 - 17 - 2G_TX_HB 2GHB_TX 2GLB_TX 2G_TX_LB LGE Internal Use Only - 36 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 37 RF signal path. Replace Main B/D Replace Main B/D Waveform Figure 4.1.1 (a) Figure 4.1.1 (a) - 18 - LGE Internal Use Only - 37 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 TST1 TST2 ND with 24mil trace width R1514 RCAL TOL=0.01 RFVCO_MON THERM / AUXADC_TSX trace - 19 - LGE Internal Use Only - 38 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 39 Check TP3 at U1602(B1), U1600(B2/B5/B8) Whether it is higher than 1.5V Refer to Logic troubleshoot Replace Main B/D LGE Internal Use Only - 39 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40 TP2(B8) : C1650 : C1635 (U1600) TP2(B2) TP3(B2/B5/B8) TP2(B5) : C1618 : C1609 : C1602 - 21 - LGE Internal Use Only - 40 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 41 5.6n C1635 6.8n L1630 L1632 0.75P C1602 3.3N Size changed to 0603(B,0519) C1618 1.8p L1620 L1619 5.6n 5.6n LGE Internal Use Only - 41 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42 TP1_RF IN TP2_RF out TP2_RF out TP2_RF out Figure 4.2.1.4 Figure 4.2.1.4 - 23 - - 23 - LGE Internal Use Only - 42 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 43 Is any signal detected at that point? All WCDMA_B1/B5 Rx check is complete. If the phone sill do not work ,replace main board LGE Internal Use Only - 43 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44 C1649 TX_MODULE_TRX1 L1640 L1641 GND1 1.5N GND2 GND5 GND3 GND4 EAM62732301 - 25 - - 25 - WISOL LGE Internal Use Only - 44 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 45 L1628 RX_OUT2 4.7n GND1 GND2 GND4 GND3 GND5 EAM62955301 WISOL Waveform Figuer4.1.1(b) Figure 4.1.1 (b) - 26 - LGE Internal Use Only - 45 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 PAM is OK. See next page to check DPX The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 46 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 47 PGND3 PGND4 PGND5 PGND6 PGND12 PGND11 PGND10 R1104 ANT0_SW_SEL_1 C1112 R1105 ANT0_SW_SEL_0 - 28 - - 28 - LGE Internal Use Only - 47 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48 4. DOWNLOAD 4. Trouble Shooting Waveform Figure 4.1.1(b) Figure 4.1.1 (b) - 29 - LGE Internal Use Only - 48 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 49: Gsm Rx Part
Test Points on the IQ Data Line. So It is impossible to check the IQ Data Wave form LGE Internal Use Only - 49 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 3.3.1 GSM850/900/DCS/PCS Rx 3.3.1 GSM850/900/DCS/PCS_Rx MT6166 (U1500) SKY77761 (U1602) (FL1604) (FL1606) (FL1600) SKY77758 (U1600) (FL1602) SKY77589 (U1100) - 31 - LGE Internal Use Only - 50 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 51 +2V8_VTCXO_MTK is OK? Refer to Logic troubleshoot DC power supply circuit is ok? See next Page to check XO circuit LGE Internal Use Only - 51 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52 (+1V825_MTK_VRF ) MT6166 (U1500) TP3 : C1504 (+1V825_MTK_VRF ) Circuit Diagram C1500 - 33 - 2GHB_TX 2G_TX_HB 2GLB_TX 2G_TX_LB LGE Internal Use Only - 52 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 53 RF signal path. Replace Main B/D Replace Main B/D Waveform Figure 4.1.1 (a) Figure 4.1.1(a) - 34 - LGE Internal Use Only - 53 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54 TST1 TST2 ND with 24mil trace width R1514 RCAL TOL=0.01 RFVCO_MON THERM / AUXADC_TSX trace - 35 - LGE Internal Use Only - 54 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 55 PAM is OK. See next page to check DPX The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 55 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56 R1102 PGND1 MODE ANT0_SW_SEL_2 PGND2 GND9 PGND3 PGND4 PGND5 PGND6 PGND12 PGND11 PGND10 R1104 ANT0_SW_SEL_1 C1112 R1105 ANT0_SW_SEL_0 LGE Internal Use Only - 56 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 57 To Figure 4.1.1(a) Is any signal detected at that point? Replace FL1201 SAW filter is OK. Replace main B/D. LGE Internal Use Only - 57 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58 C1107 Waveform Waveform Figure 4.1.1 (a) Figure 4.1.1 (a) - 39 - Figure 4.1.1 (a) - 39 - LGE Internal Use Only - 58 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 59: Gsm Tx Part Troubleshooting
3.4.1 GSM850/900/DCS/PCS Tx MT6166 (U1500) SKY77761 (U1602) (FL1604) (FL1606) (FL1600) SKY77758 (U1600) (FL1602) SKY77589 (U1100) - 40 - LGE Internal Use Only - 59 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60 The Problem may be Logic part Check TP5(R1506) Refer to Logic troubleshoot +2V8_VTCXO_MTK is OK? DC Power supply Circuit is OK? LGE Internal Use Only - 60 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 61 (+1V825_MTK_VRF ) MT6166 (U1500) TP3 : C1504 (+1V825_MTK_VRF ) Circuit Diagram C1500 - 42 - 2G_TX_HB 2GHB_TX 2GLB_TX 2G_TX_LB LGE Internal Use Only - 61 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62 Refer to Figure 4.1.1(a) Replace Main B/D Replace Main B/D Waveform Figure4.1.1(a) Figure 4.1.1 (a) LGE Internal Use Only - 62 - Copyright © 2014 LG Electronics. Inc. All right reserved. - 43 - Only for training and service purposes...
Page 63 TST1 TST2 ND with 24mil trace width R1514 RCAL TOL=0.01 RFVCO_MON THERM / AUXADC_TSX trace - 44 - LGE Internal Use Only - 63 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64 The Problem may be Logic part Do these be followed by logic table for each band? Refer to Logic troubleshoot Replace Main B/D LGE Internal Use Only - 64 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 65 Test Point :R1102 :R1101 SKY77589 : C1101 (U1100) :R1105 :R1104 TP2(GSM850/EGSM) TP2(DCS/PCS) : C1117 : C1111 - 46 - LGE Internal Use Only - 65 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66 R1105 ANT0_SW_SEL_0 C1117 TP2 (GSM850/EGSM) TP2 (GSM850/EGSM) <U1100 Logic Table > <U1100 Logic Table > LGE Internal Use Only - 66 - Copyright © 2014 LG Electronics. Inc. All right reserved. - 47 - Only for training and service purposes...
Page 67: Bt/Wifi
( DGMS Guide ) MC-C00002-14 : ESD Protection Circuit for WIFI Tx; FCC 2*LO tuning - 2 - LGE Internal Use Only - 67 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68 Check the signal level at TP3 (C5102) 2. Change PCB Check the Antenna Clip (ANT5101) Replace BT/WiFi Antenna BT-WiFi will work properly - 68 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 69: Gps
4. DOWNLOAD 4. Troubleshooting 3.6. GPS 3.16. GPS <Top side> <Bottom side> ‐ 4 ‐ - 69 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70 L5110 L5105 ANT5103 EAG63652101 FEED ( DGMS Guide ) MC-C00002-14 : ESD Protection Circuit GPS_ANT C5128 3.3p L5117 - 70 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71 Check the signal level at TP2 Replace U5101 Replace GPS antenna Check the signal level at TP5 GPS will work properly - 71 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72: Fm Radio
FB6602 1800 SPK_R HPH_AMP_R R6603 FM_ANT FB6603 1800 Close to 3.5pi ear-jack R6609 FM_RX_IN_N R6610 HS_GND MAIN GND - 72 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73 Give the addition solder or replace (L6600,L6608,R6609,R6603) (L6600,L6608,R6609,R6603) Check Bias Voltage Good?(C5115) Replace U5100 FM will work properly - 73 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74: Dtv
COUPLING1 COUPLING2 L5302 L5300 L5303 L5304 size 2x1.5 L5301 100p C5300 0.5p C5311 C5301 L5307 LGE Internal Use Only - 74 - - 9 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75 Check the signal level at TP3 (L5300, C5300, L5301,D5300) Check the signal level at TP4 Replace DTV antenna DTV will work properly LGE Internal Use Only - 75 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76: Power Ts
3.9. Power TS 3.8. Power TS The main power source of D337 is provided by 1 chip which is MT6323 Power ON sequence of D337 is The main power source of D337 is provided by 1 chip which is MT6323...
Page 77 Check MT6323 IO Voltage level? C4109(Check MT6323) Check MT6323 RTC CLOCK Change MT6323 Check Battery connector (CN9100) Return to Start LGE Internal Use Only - 77 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78 Core DC/DC INDUCTOR(L4130) DVDD18_DIG +1V8_MTK_VIO DVDD18_IO GND_ISINK GND_LDO_1 GND_LDO_2 GND_LDO_3 Cap closed to MT6323. GND_LDO_4 GND_LDO_5 IO DC/DC Capacitor(C4109) LGE Internal Use Only - 78 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 79 4. DOWNLOAD 4. Trouble Shooting IO DC/DC CAPACITOR(C4144) Core DC/DC INDUCTOR(L4130) PWR KEY(R9107) BATTERY CONNECTOR(CN9100) ‐ 5 ‐ LGE Internal Use Only - 79 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80: Charging Ts
3.10. Charging TS 3.9 Charging TS D337 uses Charger IC(liner Charger) for charging control. The Charger IC circuit includes the charging pass transistor detects the VDD and VBAT voltages, and its control driver. The Charger IC maximum charging D337 uses Charger IC(liner Charger) for charging control. The Charger IC circuit includes the charging pass current is set around 820mA.
Page 81 Is it charging properly After turning on? Change the Charger IC ( U4700 ) Change the Main PCB LGE Internal Use Only - 81 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82: Usb Ts
Change I/O connector( CN10001) Is the signal ok for USB+ & - ? Change AP( U2100 ) Change the Main PCB LGE Internal Use Only - 82 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 83: Usb Ts
4. DOWNLOAD 3.11. Audio TS 3.11.1 Overview 3.12.USB TS 3.12.1. Overview Audio Block Diagram Audio Block Diagram LGE Internal Use Only - 83 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 Change Speaker Module? Check Main PCB. (L6700, L6701, FB6202, FB6203, C6208, C6209 ) Speaker Sound OK? Change Main Board LGE Internal Use Only - 84 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85 4. DOWNLOAD 4. Trouble Shooting FB6202, U6200 FB6203 C6208, C6209 U4100 Contact L6700, L6701 Speaker Speaker Module ‐ 12 ‐ LGE Internal Use Only - 85 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 COMMON_I2C_SDA COMMON_I2C_SCL C6208, C6209 R6924 HS_GND ANT6200 MBV62562001 L6700 SPK_AMP_P FEED MBV62562001 ANT6201 L6701 SPK_AMP_N FEED L6700, L6701 LGE Internal Use Only - 86 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 87 Hear the Voice through the RCV? Change RCV Module? Check Main PCB.(L6450, L6451, ) via Loopback mode Voice OK? Change Main Board LGE Internal Use Only - 87 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88 4. DOWNLOAD 4. Trouble Shooting U6200 U6201 U4100 Contact L6450, L6451 Receiver Module ‐ 15 ‐ LGE Internal Use Only - 88 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 89 4. DOWNLOAD Main PCB L6450, L6451 CN6450 L6450 RCV_P L6451 RCV_N LGE Internal Use Only - 89 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 Mic works well? Reconnect or change Mic Voice signal OK? Change MT6323(U4100). Mic works well? Change Main Board LGE Internal Use Only - 90 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 91 EAR_MIC_JACK GND Close to MIC C4106 0.1u MIC_IN2_N C4111 ‐ 18 ‐ MIC_IN3_P ‐ 18 ‐ C4112 MIC_IN3_N LGE Internal Use Only - 91 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 Mic works well? Reconnect or change Mic Voice signal OK? Change MT6323(U4100). Mic works well? Change Main Board LGE Internal Use Only - 92 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 93 ‐ 20 ‐ EAR_MIC_JACK GND Close to MIC C4106 0.1u MIC_IN2_N ‐ 20 ‐ C4111 MIC_IN3_P C4112 MIC_IN3_N LGE Internal Use Only - 93 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94 Yes, but still not works Change MT6323(U4100). Mic works well? Change Main Board LGE Internal Use Only - 94 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 95 C6929 via to GND plane. Close to 3.5pi ear-jack R6609 FM_RX_IN_N R6610 HS_GND MAIN GND ‐ 22 ‐ LGE Internal Use Only - 95 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96 Sound play via headset? Check TPA2058D3(U6200) and peripheral circuits Works well? Check MT6323(U4100). Works well? Change Main Board LGE Internal Use Only - 96 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 97 Check the input power VBAT and+1V8_MTK_VIO . (FB6200, FB6201, C6200, C6201, C6202, C6203) In case of you can’t heard anything, check C6204, C6205, R6613, R6614, FB6601, FB6602. ‐ 24 ‐ LGE Internal Use Only - 97 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98 Case B. No Sound from Headset R6613, R6614 C6204, C6205 C6205 FB6200, FB6201, C6200, C6201, C6202, C6203 U4100 FB6602 FB6601 ‐ 25 ‐ LGE Internal Use Only - 98 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 99: Accelerometer & Compass Sensor On/Off Ts
Function is OK? Compass sensor Compass sensor Function is OK? Function is OK? Compass sensor ‐ 27 ‐ ‐ 27 ‐ LGE Internal Use Only - 99 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100: Proximity Sensor On/Off Ts
Proximity sensor LCD off? Check + +2V8_MTK_VIO (C8400) Output work well? Change the main board Function is OK? LGE Internal Use Only - 100 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 101 4.7K +1V8_MTK_VIO R8401 +2V8_MTK_VIO COMMON_I2C_SDA TOL=0.01 PROXIMITY_INT COMMON_I2C_SCL VA8501 VA8500 LEDK LEDA VA8502 C8401 C8400 ‐ 29 ‐ LGE Internal Use Only - 101 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102: Touch Sensor Trouble Shooting
Check I2C Line & Signal Line (TP3, TP4) Touch Works OK? Change Touch Module Touch Works OK? Change Main Board LGE Internal Use Only - 102 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 103 TOUCH_I2C_SDA TOUCH_INT TOUCH_MAKER_ID CN7200 C7200 TP3(VA7202) TP4(VA7200 +3V0_TOUCH_VDD : TP2 (C7200) +1V8_MTK_VIO (TP1) : TP1 (R7201) TP1 (R7201) ‐ 31 ‐ LGE Internal Use Only - 103 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 104: Vibrator Trouble Shooting
Reconnect Connector and check Vibrator. Change MT6323 Check Power 3.00V Motor Power is OK?? Change IC Vibrator Works well? Change Main Board LGE Internal Use Only - 104 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 105 4. DOWNLOAD 4. Trouble Shooting L9910 100n +3V0_MTK_VIBR C9910 D9910 Request jjongs.kim breakid.jeong 13/11/20 ‐ 33 ‐ LGE Internal Use Only - 105 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 106: Main Camera Ts
Check the camera signals MCLK(TP4),MIPI_ Change the Main board CLK(TP5), MIPI_DATA(TP6) Change the Camera Camera is OK ? LGE Internal Use Only - 106 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 107 MAIN_CAM0_MIPI_CLK_N DVDD (C7015) AVDD IOVDD C7016) (C7014) MCLK (C7011) MIPI DATA (FL7003) MIPI CLK (FL7500) ‐ 36 ‐ LGE Internal Use Only - 107 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 108: Vt Camera Ts
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 - 108 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 109 DVDD (C7015) AVDD IOVDD C7016) (C7014) MIPI DATA (FL7002) (FL7002) MIPI CLK (FL70022 MCLK (C7011) ‐ 38 ‐ LGE Internal Use Only - 109 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 110: Main Lcd Ts
LCD_MIPI_DATA (TP3), Change the LCD Module LCD_MIPI_CLK (TP4) LM3639(4400) output LEDA(TP5) Change the Main Board The LCD works LGE Internal Use Only - 110 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 111 MIPI_CLK: TP4 MIPI_CLK: TP4 (FL7001) (FL7001) MIPI_DATA: TP3 (FL7000) MIPI_DATA: TP3 (FL7000) - 40 - - 40 - LGE Internal Use Only - 111 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 112: Download
TOOL VERSION DLL NAME USB DRIVER Please Check the Version to “B2B” Name Part No. Software D/L Cable LGE Internal Use Only - 112 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 114 4. DOWNLOAD LGLS990 LGLS990_20140704_LGFLASHv160_Download LGLS990 LGE Internal Use Only - 114 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124 4. DOWNLOAD LGLS990 LGLS990_20140704_LGFLASHv160_Download LGLS990_20140704_LGFLASHv160_Download LGLS990 LGLS990AT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGLS990 LGE Internal Use Only - 124 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 125 4. DOWNLOAD LGLS990 LGLS990_20140704_LGFLASHv160_Download LGLS990 LGLS990AT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGLS990 LGLS990 LGE Internal Use Only - 125 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 129: Block Diagram
AUD DAT MOSI AUD_DAT_MOSI AUD_CLK AUDIO_CLK AUD_CLK_MOSI APDS-9130- COMMON_I2C AK09911 K2DH AUD_MISO AUD_DAT_MISO GPIO_88,89 (Compass) (Accel) AUDIO_DATA_MISO (Proximity) LGE Internal Use Only - 129 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130 GPIO61 3G_PA_B2_EN GPIO60 PA_MODE_SEL0 GPIO72 PA_MODE_SEL1 GPIO73 GPIO53 TX_EN VRAMP ANT_SW_SEL_0 GPIO50 ANT_SW_SEL_1 GPIO51 GPIO51 ANT_SW_SEL_2 GPIO52 MODE LGE Internal Use Only - 130 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 131 WiFi_BT_TX_IQ 4 line GPS_RX_IQ 4 line WiFi_BT_Control 6 line 1SEG_SPI 4 line Ant. DTV 1SEG_INT FC8150 FC8150 1SEG_EN 26M_DTV_CLK MT6166 LGE Internal Use Only - 131 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132 AVDD18 WBT AVDD18_WBT +1V8_MTK_VCN VCN18 AVDD18_GPS +2V8_MTK_VCN AVDD28_FM VCN28 MT6582 +3V3_MTK_VCN WLAN_CLK AVDD33 WBT VCN33 XO IN XO_IN MT6166 LGE Internal Use Only - 132 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 133 (B8743 / EPCOS) FC8150 / FCI FC8150 / FCI MT6582 1SEG_INT GPIO_7 HOST_INTB 1SEG_EN GPIO_8 LDO_EN MT6166 VGP3 MT6323 LGE Internal Use Only - 133 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134 MT6627 Filter+LNA GPS_ANT GPS_RFIN Module Module (SFMG2XAB002/Wisol) GPS_LNA_EN GPS_RX_Q_N GPS_RXQN GPS_RX_Q_P GPS_RXQP GPS_RX_I_N GPS_RXIN GPS_RX_I_P GPS_RXIP MT6582 MT6582 LGE Internal Use Only - 134 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 135 _micro BATTERY _SIM +1V8_MTK_VIO +1V8_MTK_VIO JTAG VIO18 300mA /DVDD18_IO MAX8971 +1V8_MTK_VIO +VBAT +3V0_MTK_VIBR (charger IC) Motor VBUS_USB_IN_PM VGP3 LGE Internal Use Only - 135 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136 VREF_LPDDR2 VREF VREFCA, VREFDQ SDCARD_DATA_0~3 MSDC1_DATA0~3 DAT0~2, CD/DAT3 SDCARD_CMD MSDC1_CMD MSDC1 SDCARD_CLK SD CARD MSDC1_CLK CLK2 SDCARD_DET EINT3 LGE Internal Use Only - 136 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 137 PROXIMITY COMMON_I2C_SDA GPIO_88 SENSOR (APDS-9130-200) MT6582 LEDA LEDK HALL_INT GPIO_11 +1V8_MTK_VIO VIO18 Hall IC (BU52061NVX) +3V0_MTK_VIBR VIBR Vibrator LGE Internal Use Only - 137 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 138 MT6166 FM_ANT MT6582 MT6582 FM_LANT_P FM_RX_IN_N FM_LANT_N AUDIO_DATA_MOSI GPIO_28 AUD_MOSI AUDIO_CLK AUD_CLK GPIO_26 26M_AUDIO_CLK CLK26M AUDIO_DATA_MISO AUD_MISO GPIO_27 LGE Internal Use Only - 138 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 139 2V8_VCC 1V8_IO LCD_PWM CAMERA_Flash Ext LDO for Ext LDO for VBAT VBAT +2V8_MTK_LCD_VCC(DCAM 2.8V, 150mA) +1V8_MTK_LCD_IO(GP2 1.8V, 100mA) MT6323 LGE Internal Use Only - 139 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 140 20pin MIPI_CSI2_CLK_N IO(1.8V) RCN_A MIPI_CSI2_CLK_P RCP_A AVDD(2.8V) MIPI CSI2 LANE0 M MIPI_CSI2_LANE0_M RDN0_A MIPI_CSI2_LANE0_P RDP0_A [1.3M Sony IMX119] LGE Internal Use Only - 140 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 141: Circuit Diagram
TRX4 TRX5 G_LB_Rx TRX6 G_HB_Rx C1111 2G_TX_HB VBAT R1104 ANT0_SW_SEL_1 C1112 C1114 R1105 ANT0_SW_SEL_0 GSM TX_IN C1117 2G_TX_LB - 141 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 142 GND_AUXADC TST2 GND8 Route AUXADC_GND with 24mil trace width R1514 RCAL TOL=0.01 RFVCO_MON under VREF_BAT_THERM / AUXADC_TSX trace - 142 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 143 Size changed to 0603(B,0519) C1618 1.8p L1618 3.3N GND1 GND2 GND5 GND3 GND4 L1620 L1619 EAM62571201 5.6n 5.6n MURATA - 143 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 144 SFMG2XAB002 FEED RFIN C5108 L5110 L5105 ANT5103 EAG63652101 FEED ( DGMS Guide ) MC-C00002-14 : ESD Protection Circuit - 144 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 145 LDO_IN/VDDM3_3V GND_BB_1 GND_BB_2 VDD_RF/VCO GND_BB_3 VDD_PLL/DIG GND_BB_4 ADC_VDD GND_BB_5 C5309 C5306 C5307 0.1u 0.1u C5310 R5309 26M_DTV_CLK 1.5K - 145 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 146 AF19 should connect to C2103 GND first than connect to GND by via. URXD1 JTAG_TDO 140320_Changed via MTK - 146 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 147 Ver. Set_REVISOIN_0 Set_REVISOIN_1 AF13 JTAG_TMS JTMS/GPIO_76 TDN2/GPI_164 AF12 JTAG_TCK JTCK/GPIO_77 TDP3/GPI_165 AG11 JTAG_TDI JTDI/GPIO_78 TDN3/GPI_166 AE12 JTDO/GPIO_79 JTAG_TDO - 147 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 148 PCB CAP first, and then connected with PMU and PCB ground. CAP should be near MT6582 as possible as we can. - 148 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 149 DVSS_36 DVSS_48 DVSS_37 DVSS_49 DVSS_38 DVSS_50 DVSS_39 DVSS_51 DVSS_40 DVSS_52 2_3_3_1_4_MT6582_GND_V0_3_0301132515 14051 14051 AC21 AD22 AG26 AA18 AB19 - 149 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150 VSS_17v VDD2_8 VSS_18v VDD2_9 VSS_19v VDD2_10 VSS_20v VDD2_11 VSS_21v VDD2_12 VDD2_13 VDD2_14 VDD2_15 VDD2_16 VDD2_17 VDD2_18 R3309 TOL=0.01 - 150 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 151 560 ohm : 910mA 2K ohm 10% 680 ohm : 820mA 750 ohm : 750mA 820 ohm : 680mA - 151 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 VSYS LDO VCAM_IO Camera IO application VSYS LDO VGP3 1.2/1.3/1.5/1.8 General purpose LDO VSYS LDO VCN18 General purpose LDO - 152 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 153 LM3639 CAM0_I2C_SDA 0.3mm FLASH_LED_EN STROBE BLED1 PMIC_LED_C1 BLED2 PMIC_LED_C2 FLASH_LTD FLED1 FLASH_LED_OUT_P LCD_PWM FLED2 <9-8-3_Flash_LED> FLASH_LED_OUT_P LD9830 VA7406 - 153 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154 FL7004 VA7007 2.REF_DGMS_CHECK_LIST FL7500 MAIN_CAM0_MIPI_CLK_P MAIN_CAM0_MIPI_CLK_N Ext. DVDD LDO for CAMERA (1.2V) VBAT RP103K121D-TR U71001 VOUT +1V2_EXT_LDO_CAM_DVDD LDO2_EN - 154 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 155 When USE) TVS devices's Working Voltage must be greater than the Path voltage should apply capacitor under 50pF value for ESD protection with d-class amp - 155 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 RSTN COMMON_I2C_SDA COMMON_I2C_SCL +2V8_MTK_VIO < 9-9-1-1_Motor > Rev_0.3 L9910 100n +3V0_MTK_VIBR C9910 D9910 Request jjongs.kim breakid.jeong 13/11/20 1203_jjongs.kim - 156 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 157 +3V3_SD_VCC R9513 CLK2 SDCARD_CLK S9500 SIM1_DATA_PM DAT0 SDCARD_DATA_0 SDCARD_DATA_1 RESERVED2 DAT1 SDCARD_DET R9501 +1V8_MTK_VIO PID1 C9503 2.2u DAISY_CHAIN - 157 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158: Bga Pin Map
7. BGA PIN MAP 7. BGA PIN MAP U1100 SKY77589 U1100 SKY77589 Not Used Used LGE Internal Use Only - 158 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 159 7. BGA PIN MAP U1500 MT6166 RF Transceiver U1500 MT6166 RF Transceiver Not Used Used LGE Internal Use Only - 159 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160 7. BGA PIN MAP U1600 BU52033NVX Hall IC U1600 BU52033NVX Hall IC Not Used Used LGE Internal Use Only - 160 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 161 7. BGA PIN MAP 602 SKY77761 B1 TRX U1602 SKY77761 B1 TRX Not Used Used LGE Internal Use Only - 161 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 165 7. BGA PIN MAP 0 LM3639 LCD Backlight Booster U4400 LM3639 LCD Backlight Booster Not Used Used LGE Internal Use Only - 165 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166 7. BGA PIN MAP 4700 RT9536 Linear Charger U4700 RT9536 Linear Charger Not Used Used LGE Internal Use Only - 166 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 167 7. BGA PIN MAP U5100 MT6627 IC,Wifi U5100 MT6627 IC,Wifi Not Used Used LGE Internal Use Only - 167 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 168 7. BGA PIN MAP 5101 SFMG2XAB002 GPS LNA module U5101 SFMG2XAB002 GPS LNA module Not Used Used LGE Internal Use Only - 168 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 169 7. BGA PIN MAP 0 FC8150 DTV Chip U5300 FC8150 DTV Chip Not Used Used LGE Internal Use Only - 169 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 170 7. BGA PIN MAP 6200 TPA2058D3 Audio Sub System U6200 TPA2058D3 Audio Sub System Not Used Used LGE Internal Use Only - 170 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 171 7. BGA PIN MAP 6201 DG2735A SPK MIC U6201 DG2735A SPK MIC Not Used Used LGE Internal Use Only - 171 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 173 200 AK09911 Compass 7. BGA PIN MAP U8200 AK09911 Compass Not Used Used LGE Internal Use Only - 173 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 174 7. BGA PIN MAP U8300 K2HHTR Accel U8300 K2HHTR Accel Not Used Used LGE Internal Use Only - 174 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 175 7. BGA PIN MAP 00 APDS-9130 Proximity Sensor U8400 APDS-9130 Proximity Sensor Not Used Used LGE Internal Use Only - 175 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 176 7. BGA PIN MAP 700 BU52033NVX Hall IC U8700 BU52033NVX Hall IC Not Used Used LGE Internal Use Only - 176 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 177 7. BGA PIN MAP U71001 RP103K121D-TR Ext. DVDD LDO for Camera U71001 RP103K121D-TR Ext. DVDD LDO for Camera Not Used Used LGE Internal Use Only - 177 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 178: Pcb Layout
- no booting, no function  Model name : BU52033NVX(U8700) Function : Hall IC no quick circle case LG-D337_Main_EAX65632401_1.0_TOP-1 - 178 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 179 Function : Speaker contact - no speaker     D:\expedition\L80V\EAX66073001_1_0_LGD337_MAIN_140618_1715\PCB\Board1.pcb - Page 1 of 1 pages. LG-L337-MAIN_EAX65632401_1.0_TOP-2 - 179 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 180 Function : Main antenna connection - no MIC.(Voice) - no Service  LG-D337_Main_EAX65632401_1.0_BOT-1 D:\expedition\L80V\EAX66073001_1_0_LGD337_MAIN_140618_1715\PCB\Board1.pcb - Page 1 of 1 pages. - 180 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 181 Function : Touch B to B Connector - no touch  LG-D858_Main_EAX65632401_1.0_BOT-2 D:\expedition\L80V\EAX66073001_1_0_LGD337_MAIN_140618_1715\PCB\Board1.pcb - Page 1 of 1 pages. - 181 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 182: Calibration
I/O Cable RF Cable_Main Power Supply_PIF Power Supply 5.3V Power Supply_Phone Power Supply 5.0V RF Test Equipment E5515C(8960) NOTICE LGE Internal Use Only - 182 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 186 9. CALIBRATION LGLS990 LGLS990 LGLS990 LGLS990 LGLS990 LGLS990 LGLS990 LGLS990 LGLS990 LGE Internal Use Only - 186 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 188 RF Connection Cable USB cable (A-B type) (P/No : BJAY0020060) MS-156C MXFJK1WT4000C2 GPIB cable (IEEE-488) (P/No : BJAY0020058) RAD32167861 LGE Internal Use Only - 188 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 197 9. CALIBRATION LGLS990 LGLS990 LGLS990 LGLS990 LGLS990 LGLS990 LGLS990 LGE Internal Use Only - 197 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 200: Hidden Menu
Start shortcut keys: Start shortcut keys: 3845#*337# 3845# 337# Hidden Menu List Start the desired menu: Menu, click LGE Internal Use Only - 200 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 201 9. Version Name 9. Version Name 10. Individual Item(+power key) 11. Wireless RF Test(+power key 12. Optional Menu(+power key) LGE Internal Use Only - 201 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 202 13. Sensor Test 12. Back to the Menu list 14. Touch Draw - Auto 12. Back to the Menu list LGE Internal Use Only - 202 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 203 Up/Down key : Check Recognition Phone contact with your fingers in the top of the sensor determine the sensor response Near LGE Internal Use Only - 203 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 204 Rec : 1280x720 5. Display checkTest : LCD Black & White test Check the Black display Check the White display LGE Internal Use Only - 204 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 205 : Check sound Check the sound 7. Vibrator test A case-by-state vibration tests 8.Touch window test Write with finger LGE Internal Use Only - 205 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 206 Check the GLONASS : N/A Check the WIFI scanning Check the BT scanning 11. OneSeg Test Check the OneSeg LGE Internal Use Only - 206 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 207 Check the Receiver loopback Check the speaker loopback 14. Sensor Test Check the Proximity Cal Check the Proximity Check the Magnetic LGE Internal Use Only - 207 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 209 -LCD Backlight -Ringtone -Vibrator -Camera -Audio Loopback -> test on the device is working (The ability to use plant) LGE Internal Use Only - 209 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 210 FPRI Test : Compare and Create logt.txt CRC Test : EFS CRC EFS CRC Detail DB Check : DB Check and Compare DB Dump LGE Internal Use Only - 210 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 211 Automatic Test : Automatically, without clicking LCD Q Test(Not Implemented) LCD Module Test LCD Display Test Mura Test : leakage of Light uniformity LGE Internal Use Only - 211 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 212 -Touch Key Test -Touch Sensing Test 4*7 -Firmware Version -Check Touch Panel Audio test list -Ring -Effect Sound -Message Tone LGE Internal Use Only - 212 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 213 10. HIDDEN MENU Vibrator test list -On/Off -Duration Camera test list -Snapshot -Camcoding -CameraVT -Camera Aging Sensor test list -Proximity LGE Internal Use Only - 213 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 214 GPS BT WI-FI Test Check the GPS scanning Check the GLONASS scanning Check the WIFI scanning Check the BT scanning RTCTest LGE Internal Use Only - 214 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 215 Battery Test Battery Status Battery Health Battery Mode of Charging Battery Level Battery Technology Battery Voltage Battery Temperature LGE Internal Use Only - 215 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 216 -NT Code -Build finger print Normal Mode : Change to Normal Mode ALC Mode : Change to ALC Mode LGE Internal Use Only - 216 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 217 - Null port Data Settings USB Set for Data BT Set for Data UART Set for Data Null port LGE Internal Use Only - 217 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 218 ->LoudSpeaker Mode ->Headset_LoudSpeaker Mode ->Speech Enhancement ->Debug Info ->Debug Session ->Speech Logger ->Audio Logger Camera Camera Clock Settings LGE Internal Use Only - 218 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 219 10. HIDDEN MENU Bluetooth Settings ERS Settings -Client Status -ERS Test ADC Info LGE Internal Use Only - 219 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 221 -Factory Reset :Changing the Factory Modem Settings Enter to EngineerMode EngeinnerMode List Telephony Connectivity Hardware Testing Location Log and Debugging Others LGE Internal Use Only - 221 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 222 -Deep Idle Power -DVFS SD Card Test -MCDI TouchScreen -PLL CG -Sleep Mode Device Manager UART/USB switch -De-Sense Sensor LGE Internal Use Only - 222 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 223 Debug Utils Modem Warning Setting MTKLogger User2Root Modem Reset Delay Setting Others Settings Font SWLA Thermal USB ACM LGE Internal Use Only - 223 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 224 -Call Duration Streaming Streaming Setting Edit -> Edit Enable or not Streaming Log -> Log Enable or not LGE Internal Use Only - 224 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 225 -Edit UAString -Enable/Disable X-wap-profile -Display Certificates -Change UAPROFILE DRM Test Contacts Test Insert specific number of contact info LGE Internal Use Only - 225 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 226 Main log System log Radio log Events log Kernel log Quick Dump Copy Log files Flex Test SMPL Counter LGE Internal Use Only - 226 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 229 10. HIDDEN MENU 8. Fake Language Fake Language Switch to Fake language mode On/Off LGE Internal Use Only - 229 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 230 10. HIDDEN MENU 9. GPS Test gpsApp Test GPS Test gpsApp Test Air Test(Enable / Disable) LGE Internal Use Only - 230 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 233 10. HIDDEN MENU 12. DTV Test DTV Test - setting CH. - display DTV LGE Internal Use Only - 233 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 234 10. HIDDEN MENU 13. Thermal DAE Miti OFF Thermal DAE migration OFF - Switch to on/off LGE Internal Use Only - 234 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 235: Disassemble Guide
1. Disassemble Battery cover , Battery A. Remove Battery cover B. Remove Battery A. Remove Battery cover B tt B. Remove Battery LGE Internal Use Only - 235 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 236 B. Take apart the Rear cover starting from No.1( A. Remove screws from Rear cover B. Take apart the Rear cover starting from No.1( LGE Internal Use Only - 236 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 237 A. Take apart the Cap mic btm, Cap mic top and Speaker from Rear cover B. Take apart the Main antenna from Rear cover (Pushing Hook) LGE Internal Use Only - 237 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 238 Take apart the FPCB connector , then separate PCB from Bar Ass’y Take apart the FPCB connector , then separate PCB from Bar Ass’y LGE Internal Use Only - 238 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 239 A. Remove a screw, then take apart the DTV from Bar Ass’y B. Take apart the Camera VT, Receiver, Earjack, and Motor from Bar Ass’y LGE Internal Use Only - 239 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 240 Take apart the connector of Camera main from PCB Take apart the connector of FPCB_sim from PCB Take apart the shield can btm from PCB LGE Internal Use Only - 240 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 241 7. Disassembled Components Take apart the Shield can top from PCB Take apart the Shield can top from PCB LGE Internal Use Only - 241 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 242: Exploded View & Replacement Part List
12. EXPLODED VIEW & REPLACEMENT PART LIST This document is draft version, so the contents will be updated after registering the final one. LGE Internal Use Only - 242 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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