Page 1 Internal Use Only Service Manual LG-E445 Date : April, 2013 / Issue 0.9...
Page 2: Table Of Contents
4.13 3M Main Camera TS .................143 4.14 Main LCD TS ..................145 4.15 BT/Wifi TS .....................148 4.16 GPS TS ....................151 4.17 FM TS ......................154 LGE Internal Use Only - 2 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 3: Introduction
In accordance with these agencies, you may be required to provide information such as the following to the end user. - 4 - LGE Internal Use Only - 3 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 4 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. - 5 - LGE Internal Use Only - 4 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 5 • Capacitive Touch Screen – Glass with fast and accurate response • Micro USB/Charging Port - 6 - LGE Internal Use Only - 5 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 6 *Depends on available memory. *Depends on available memory. **Accessories sold separately. **Accessories sold separately. - 7 - - 7 - LGE Internal Use Only - 6 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 7: Specifications
Standard Battery: 1,700 [mAh] ACCESSORIES • Standard Battery • Travel Adapter and USB Cable* • Stereo Headset - 8 - LGE Internal Use Only - 7 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 8: Performance
2.3 Main Parts : GSM Solution Item Part Name Comment AP Chip MT6575 (MTK) CP Chip MT6162 (MTK) LGE Internal Use Only - 8 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 9: Hw Features
15 fps@ QXGA, 30 fps@ XGA 8. Main Camera (3M) View Angle 65° Image Scaling Down 3M, 2M,1M,VGA Pixel x size 1.4um x1.4um LGE Internal Use Only - 9 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10 Max 40Mbps (SDIO Driver performance) depend on environment 0 ~ 50m (depend on environment) 13. GPS type A-GPS, GNSS LGE Internal Use Only - 10 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 11: Hw Spec
-35-1 * (Δf-3.5) dBc/1MHz Spectrum Emission Mask Δf = 7.5~8.5MHz -39 10 * (Δf-7.5) dBc/1MHz Δf = 8.5~12.5MHz dBc/1MHz LGE Internal Use Only - 11 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 12 +1.5/4 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 Inner Loop Power Control -0.5/-1.5 -1/-3 -1.5/-4 In Uplink group(10equal command group) +8/+12 +16/+24 LGE Internal Use Only - 12 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 13 +1.5/4 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 Inner Loop Power Control -0.5/-1.5 -1/-3 -1.5/-4 In Uplink group(10equal command group) +8/+12 +16/+24 LGE Internal Use Only - 13 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 14 Magnitude (EVM) -20 dBm with HS-DPCCH 6.3A Maximum Input Level for Receiver Pin = -25dBm BLER(%) HS-PDSCH Reception LGE Internal Use Only - 14 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 15 : -98dBm/-96dBm (2.439%) AM Suppression -98dBm/-96dBm (2.439%) GSM : -31dBm - DCS : -29dBm Timing Advance ± 0.5T LGE Internal Use Only - 15 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 16 Drift Rate Freq. Drift Carrier Frequency Drift 10101010 kHz/50us Drift Rate Freq. Drift 10101010 kHz/50us Drift Rate LGE Internal Use Only - 16 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 17 Δf = -5MHz (CW_i) Input power @CW_i Δf = -10MHz (BT_i) -64dBm@ BT_w Maximum Input PRBS9 Level Input power @BT_w LGE Internal Use Only - 17 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 18 ≥ -10dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8% Rx Max input Sensitivity Rx Adjacent Channel ≥ 35dB @FER ≤ 8%, interference input signal -70dBm@fc±25MHz(11Mbps) Rejection LGE Internal Use Only - 18 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 19 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 19 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 20 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 20 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 21 Under 300 uA Under 300 uA 7. Backup Battery 7. Backup Battery under 5uA under 5uA under 5uA under 5uA LGE Internal Use Only - 21 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 22 14) Charging hour Under 3 hour 30min (1700mAh battery, 700mA TA) Under 3 hour 30min (1700mAh battery, 700mA TA) LGE Internal Use Only - 22 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 23 4% ~ 15% : One Time popup (No call) Critical Low Battery Pop-up 0% ~ 3% : Every Level change popup (No call) Power Off LGE Internal Use Only - 23 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 24: E445 Figures
2. PERFORMANCE LG-E445 Product SPEC 2.6 E445 Figures 2.6 E445 Figures LGE Internal Use Only - 24 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 25: Cic And Service Center
3.1 CIC FAQ This document is draft version, so the contents will be updated after registering the final one. LGE Internal Use Only - 25 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26: Trouble Shooting
* 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 - 26 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 28 +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 - 28 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 29 C124 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO U101 C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 LGE Internal Use Only - 29 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30 XO circuit is Ok . See next page Is it similar ? to check RF signal path. Replace Main B/D LGE Internal Use Only - 30 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 31 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 PDET PDET LGE Internal Use Only - 31 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 32 TX module is OK. See next page to check DPX The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 32 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 33 L102 C118 100n GND12 GND6 GND13 TRX3 GND14 TRX2 U102 GND15 GND5 GND16 GND4 GND17 GND3 GND18 VBATT LGE Internal Use Only - 33 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34 ANT_SEL1 ANT_SEL2 ANT_SEL0 GSM_PA_EN C179 C180 C181 C138 100p 100p 100p 100p Figure 4.1.1 (b) Figure 4.1.1 (c) LGE Internal Use Only - 34 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 35 All WCDMA_B1 Rx check is complete. If the phone sill do not work ,replace main board LGE Internal Use Only - 35 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36 C149 L108 4.7n C150 C153 FL103 RX_W1900_W2100_INP L109 W1900_2100_TRX 1.8n C156 L110 2.7n GND1 GND2 GND5 GND3 GND4 LGE Internal Use Only - 36 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 * 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 - 38 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40 +2V8_VTCXO_MTK is OK? DC Po wer su pply Circuit is OK. See next Page to check XO circuit LGE Internal Use Only - 40 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 41 C124 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO U101 C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 LGE Internal Use Only - 41 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42 XO circuit is Ok. See next page Is it similar ? to check RF signal path. Replace Main B/D LGE Internal Use Only - 42 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 43 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 PDET PDET LGE Internal Use Only - 43 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44 TX module is OK. See next page to check DPX The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 44 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 45 L102 C118 100n GND12 GND6 GND13 TRX3 GND14 TRX2 U102 GND15 GND5 GND16 GND4 GND17 GND3 GND18 VBATT LGE Internal Use Only - 45 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 100p 100p 100p 100p Center Frequency : 942.6MHz Figure 4.1.1 (b) Center Frequency : 942.6MHz Figure 4.1.1 (c) LGE Internal Use Only - 46 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 47 All WCDMA_B8 Rx check is complete. If the phone sill do not work ,replace main board LGE Internal Use Only - 47 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48 B8 W900 TRX (W850) L114 L113 L116 RX_W850_W900_INP 1.5n FL104 C176 W850_W900_TRX L118 L117 5.1n GND1 GND2 GND5 GND3 GND4 LGE Internal Use Only - 48 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 49 4. TROUBLE SHOOTING Center Frequency : 942.6MHz Figure 4.1.1 (b) Center Frequency : 942.6MHz Figure 4.1.1 (c) LGE Internal Use Only - 49 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50: Wcdma Tx Part Trouble
* 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 - 50 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 51 4. TROUBLE SHOOTING RF3237 MT6162 (U102) MT6162 (U101) (U101) (FL103) LGE Internal Use Only - 51 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52 Refer to Logic troubleshoot DC Po wer su pply Circuit is OK. See next Page to check XO circuit LGE Internal Use Only - 52 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 53 C124 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO U101 C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 LGE Internal Use Only - 53 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54 XO circuit is Ok. See next page Is it similar ? to check RF signal path. Replace Main B/D LGE Internal Use Only - 54 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 55 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 PDET PDET LGE Internal Use Only - 55 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56 The Problem may be Logic part Whether it is higher than 1.5V Refer to Logic troubleshoot Replace U103 LGE Internal Use Only - 56 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 57 L111 PA_ON_W1900_2100 7.5n C164 C163 TP2(RF OUT) 6.8n C165 C166 100p 100p TP1(RF IN) R106 R107 PDET R108 LGE Internal Use Only - 57 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 59 Is any signal detected at Replace FL103 that point? DPX is OK. See next page to check PAM Figure 4.1.1 (b) LGE Internal Use Only - 59 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60 C149 L108 4.7n C150 C153 FL103 RX_W1900_W2100_INP L109 W1900_2100_TRX 1.8n C156 L110 GND1 2.7n GND2 GND5 GND3 GND4 LGE Internal Use Only - 60 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 61 TX module is OK. See next page to check DPX The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 61 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62 L102 C118 100n GND12 GND6 GND13 TRX3 GND14 TRX2 U102 GND15 GND5 GND16 GND4 GND17 GND3 GND18 VBATT LGE Internal Use Only - 62 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 63 4. TROUBLE SHOOTING ANT_SEL1 ANT_SEL2 ANT_SEL0 GSM_PA_EN C179 C180 C181 C138 100p 100p 100p 100p Figure 4.1.1 (b) LGE Internal Use Only - 63 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64 * 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 - 64 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66 Refer to Logic troubleshoot DC Po wer su pply Circuit is OK. See next Page to check XO circuit LGE Internal Use Only - 66 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 67 C124 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO U101 C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 LGE Internal Use Only - 67 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68 XO circuit is Ok. See next page Is it similar ? to check RF signal path. Replace Main B/D LGE Internal Use Only - 68 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 69 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 PDET PDET LGE Internal Use Only - 69 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70 The Problem may be Logic part Whether it is higher than 1.5V Refer to Logic troubleshoot Replace U104 LGE Internal Use Only - 70 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71 RFIN PA_R1 PA_R0 VMODE C178 L119 PA_ON_W850_W900 C172 C173 1.8p R111 C174 C175 49.9 100p 100p TP2(RF OUT) LGE Internal Use Only - 71 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72 4. TROUBLE SHOOTING Center Frequency : 897.6MHz Center Frequency : 897.6MHz Figure 4.2.1.4 LGE Internal Use Only - 72 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73 DPX is OK. See next page to check PAM Center Frequency : 897.6MHz Figure 4.1.1 (b) LGE Internal Use Only - 73 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74 B8 W900 TRX (W850) L114 L113 L116 RX_W850_W900_INP 1.5n FL104 C176 W850_W900_TRX L118 L117 5.1n GND1 GND2 GND5 GND3 GND4 LGE Internal Use Only - 74 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75 TX module is OK. See next page to check DPX The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 75 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76 L102 C118 100n GND12 GND6 GND13 TRX3 GND14 TRX2 U102 GND15 GND5 GND16 GND4 GND17 GND3 GND18 VBATT LGE Internal Use Only - 76 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 77 ANT_SEL2 ANT_SEL0 GSM_PA_EN C179 C180 C181 C138 100p 100p 100p 100p Center Frequency : 897.6MHz Figure 4.1.1 (b) LGE Internal Use Only - 77 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78: Gsm Rx Part Troubleshooting
* 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 - 78 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 79 4. TROUBLE SHOOTING SAW filter (FL102) RF3237 MT6162 (U102) (U101) LGE Internal Use Only - 79 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80 Refer to Logic troubleshoot DC Po wer su pply Circuit is OK. See next Page to check XO circuit LGE Internal Use Only - 80 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 81 C124 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO U101 C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 LGE Internal Use Only - 81 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 XO circuit is Ok. See next page Is it similar ? to check RF signal path. Replace Main B/D LGE Internal Use Only - 82 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 83 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 PDET PDET LGE Internal Use Only - 83 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 TX module is OK. See next page to check SAW filter The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 84 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85 GND12 GND6 GND13 C130 1.2n TRX3 GND14 TRX2 U102 GND15 GND5 GND16 GND4 GND17 GND3 GND18 L106 VBATT LGE Internal Use Only - 85 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 To Figure 4.1.1(b) Is any signal detected at that point Check C126, C132, L105, C133, C136, L107 SAW filter is OK. Replace main B/D. LGE Internal Use Only - 86 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 87 FL102 C130 1.2n L105 1 IN O1_1 C132 O1_2 PRX_GSM900_INP C133 O2_1 PRX_GSM850_INP L106 O2_2 L107 C136 PRX_GSM850_INN LGE Internal Use Only - 87 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 89 * 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 - 89 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 4. TROUBLE SHOOTING SAW filter (FL101) RF3237 MT6162 (U102) (U101) LGE Internal Use Only - 90 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 91 Refer to Logic troubleshoot DC Po wer su pply Circuit is OK. See next Page to check XO circuit LGE Internal Use Only - 91 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 C124 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO U101 C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 LGE Internal Use Only - 92 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 93 XO circuit is Ok. See next page Is it similar ? to check RF signal path. Replace Main B/D LGE Internal Use Only - 93 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 PDET PDET LGE Internal Use Only - 94 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 95 TX module is OK. See next page to check SAW filter The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 95 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96 GND12 GND6 GND13 C130 1.2n TRX3 GND14 TRX2 U102 GND15 GND5 GND16 GND4 GND17 GND3 GND18 L106 VBATT LGE Internal Use Only - 96 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 97 To Figure 4.1.1(b) Is any signal detected at that point Check C106,,C122,L101,C123,C125,L104 SAW filter is OK. Replace main B/D. LGE Internal Use Only - 97 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98 1 IN 4.7n O1_1 C122 1.5n O1_2 PRX_GSM1900_INP L103 O2_1 PRX_GSM1800_INN C123 4.7n C_C5 O2_2 L104 3.9n C125 PRX_GSM1800_INP LGE Internal Use Only - 98 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100: Gsm Tx Part Troubleshooting
4. TROUBLE SHOOTING 4.4 GSM Tx Part Troubleshooting 4.4.1 GSM850/900 Tx RF3237 (U102) MT6162 (U101) LGE Internal Use Only - 100 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 101 Refer to Logic troubleshoot DC Po wer su pply Circuit is OK. See next Page to check XO circuit LGE Internal Use Only - 101 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102 C124 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO U101 C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 LGE Internal Use Only - 102 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 103 XO circuit is Ok. See next page Is it similar ? to check RF signal path. Replace Main B/D LGE Internal Use Only - 103 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 104 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 PDET PDET LGE Internal Use Only - 104 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 105 Replace U102 TX module is OK. Replace Main B/D The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 105 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 107 C146 C137 100p GSM850_GSM900_TX C139 C140 ANT_SEL1 ANT_SEL2 ANT_SEL0 GSM_PA_EN C179 C180 C181 C138 100p 100p 100p 100p LGE Internal Use Only - 107 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 108 4. TROUBLE SHOOTING 4.4.2 GSM1800/1900_Tx RF3237 (U102) MT6162 (U101) LGE Internal Use Only - 108 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 109 Refer to Logic troubleshoot DC Po wer su pply Circuit is OK. See next Page to check XO circuit LGE Internal Use Only - 109 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 110 C124 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO U101 C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 LGE Internal Use Only - 110 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 111 XO circuit is Ok. See next page Is it similar ? to check RF signal path. Replace Main B/D LGE Internal Use Only - 111 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 112 SYSCLK REFCLK1 REFCLK2 REFCLK3 +2V8_VTCXO_MTK VDDXO C131 XO1/REFIN MAIN_CLK_26MHz VTUNE C134 0.1u CLK_MODE C135 VSUP2b GND1 PDET PDET LGE Internal Use Only - 112 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 113 Replace U102 TX module is OK. Replace Main B/D The Problem may be Logic part Refer to Logic troubleshoot LGE Internal Use Only - 113 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 115 C146 C137 100p GSM850_GSM900_TX C139 C140 ANT_SEL1 ANT_SEL2 ANT_SEL0 GSM_PA_EN C179 C180 C181 C138 100p 100p 100p 100p LGE Internal Use Only - 115 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116: Power
DDLO VRTC UVLO PWRKEY PWRBB PWRON VCORE VPROC VIO18 VIO28/VM12_INT VA1/VA2 VM12_1/VM12_2 VUSB/VTCXO VMC/VMCH RESETB - 106 - LGE Internal Use Only - 116 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 117 Check MT6329 IO Voltage level? R315(Check MT6329) Check MT6329 RTC CLOCK Change MT6329 Check Battery connector (CN301) And Return to Start LGE Internal Use Only - 117 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118 R313 Must be connected to FGP_IC C322 C323 C324 C325 100u 100n 100p BATT_ID_PULLUP R317 BATT_ID BATTERY CONNECTOR(CN301) LGE Internal Use Only - 118 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 119 IO DC/DC INDUCTOR(L303) +3V4_VWPAM_MTK VPA_1 1.2A,20% VPA_2 C319 VPA_FB 2.2u L305 2.2u VRF18 +1V8_VRF_MTK C321 4.7u VRF18_FB +1V2_VLPDDR2_MTK VM12_1 LGE Internal Use Only - 119 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 120 4. TROUBLE SHOOTING PWR KEY(R619) BATTERY CONNECTOR(CN301) AP DC/DC INDUCTOR(L301) Core DC/DC INDUCTOR(L302) IO DC/DC INDUCTOR(L303) LGE Internal Use Only - 120 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 121: Charging
+1V8_VIO_MTK VBATT VCHG_LDO_4V9 U601 PGND BATT U601 ISET GND1 CHGSB GND2 CHG_EN IEOC EN_SET C602 C603 C604 U601 LGE Internal Use Only - 121 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 122 Is it charging properly After turning on? Change the Charger IC ( U601 ) Change the Main PCB LGE Internal Use Only - 122 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 123: Usb Ts
Change the Main PCB u-USB Connector VBUS_CHG_IN VBUS 2mm FL601 +2V5_AVDD1_MTK GND1 GND2 CN602 USB_ID C620 VA606 D602 FL602 USBH_DM USBH_DP LGE Internal Use Only - 123 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124: Audio Ts
(AP) (BT/WIFI) CPU speed : 1 GHZ 26MHz FM RADIO MIC1 MIC1 EAR_L/R Audio 3.5pi SPK + RCB LGE Internal Use Only - 124 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 125 Hear the sound to the Speaker? Change Speaker Module? Check Lower FPCB and Main PCB. (C530,C531,VA507,VA508,R507,R508, C510,C513, FB501,FB502)Speaker Sound OK? Change Main Board LGE Internal Use Only - 125 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 126 4. TROUBLE SHOOTING C530,C531, VA507, VA508 FB501,FB502 M501 R507,R508 C510,C513 U200 Speaker Module LGE Internal Use Only - 126 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 127 0ohm OPEN PAD : SAFO0000401 (0603) MAIN GND CN501 SPK_RCV+ SPK_RCV- CN503 VA507 VA508 C530 C531 C530,C531, VA507, VA508 LGE Internal Use Only - 127 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 128 Mic works well? Reconnect or change Mic Voice signal OK? Change MT6575(U201). Mic works well? Change Main Board LGE Internal Use Only - 128 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 129 0.1u R510 MIC_P R509 R512 C508 C515 0.1u MIC_N R516 R514 VA501 VA502 R519 C516 C517 Dual MIC502 LGE Internal Use Only - 129 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130 Check the left signal and detection line short when headset inserted? Change MT6575(U200). Mic works well? Change Main Board LGE Internal Use Only - 130 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 131 VA504 VA505 VA506 L502 C524 100n MAIN GND Close to 3.5pi ear-jack R526 FM_RX_IN_N R527 HS_GND MAIN GND LGE Internal Use Only - 131 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132 Sound play via headset? Check TPA2058(M501) and peripheral circuits Works well? Check MT6575(U201). Works well? Change Main Board LGE Internal Use Only - 132 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 133 In case of you can’t heard anything, check C505, C507 Can heard sound but sound is abnormal, check C522,C523 LGE Internal Use Only - 133 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134: Axis Sensor On/Off Ts
6 AXIS SENSOR C601 100n I2C_COMMON_SCL +1V8_VIO_MTK 3AXIS_INT INT1 U603 VDDIO INT2 GND3 +3V0_SENSORS_MTK COMPASS_DRDY DRDY C607 100n LGE Internal Use Only - 134 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 135 Change the 6 AXIS Sensor IC(U603)) 6 AXIS Sensor function is OK? Change the main board 6 AXIS Sensor function is OK? LGE Internal Use Only - 135 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 137: Proximity Sensor On/Off Ts
Check +3V0_SENSOR_MTK( C605 ) & I2C_SENSOR_SDA & SCL & PROX__INT Output work well? Change the main board Function is OK? LGE Internal Use Only - 137 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 138 Sensor Power: (C605) Proximity Sensor +1V8_VIO_MTK +3V0_SENSORS_MTK Sensor Power: (C605) U602 I2C_SENSOR_SDA I2C_SENSOR_SCL PROX_INT +3V0_PROX_MTK LEDK LEDA C605 C606 LGE Internal Use Only - 138 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 139: 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 - 139 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 140 I2C_SENSOR_SCL I2C_SENSOR_SDA TOUCH_INT TOUCH_ID TP4(CN601) TOUCH_IC_ID C617 2.2u TP3(CN601) TP4(CN601) +1V8_VIO_MTK : TP1 (R609) +3V0_TOUCH_MTK : TP2 (C617) LGE Internal Use Only - 140 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 141: Vibrator Trouble Shooting
Change MT6329 (U301) Check Power 3.0V Motor Power is OK? Change IC Vibrator Works well? Change Main Board LGE Internal Use Only - 141 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 142 4. TROUBLE SHOOTING Vibrator R528 VB501 R529 R530 +3V0_VIBR_MTK C528 C529 LGE Internal Use Only - 142 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 143: 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 - 143 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 144 C402 C403 C404 2.2u 2.2u 4.7u VA402 VA403 AVDD: TP3 (C404) VIO: TP1(C403) DVDD: TP2 (C402) MCLK: TP4(R405) LGE Internal Use Only - 144 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 145: Main Lcd Ts
Change the LCD Module MIPI_DATA (TP3), MIPI_CLK (TP4) LM3639(U401) output LEDA(TP5) Change the Main Board The LCD works LGE Internal Use Only - 145 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 146 LCD_BL_EN OUT_F2 U401 I2C_COMMON_SCL I2C_COMMON_SDA FLASH_EN STROBE LED1_B LED_C1 LED2_B CN403 CN404 FLASH_LTD LED1_F LCD_PWM LED2_F HJ-BCT-03Y HJ-BCT-03Y LGE Internal Use Only - 146 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 147 4. TROUBLE SHOOTING MIPI_DATA: TP3 (FL402) VIO: TP1 (C409) MIPI_CLK: TP4 (FL402) VCI: TP2 (C408) LEDA: TP5 (C405) LGE Internal Use Only - 147 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 148: Bt/Wifi Ts
4. TROUBLE SHOOTING 4.15 BT/Wifi TS FL703 2.45KHz Filter FL702 SKY13323 U701 MT6620 LGE Internal Use Only - 148 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 149 100n 100n 0.1u 0.1u 3. Make star connection for AVDD13 (Both E6,E7 and E4,C4,G1) C744 R713 100n R714 LGE Internal Use Only - 149 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150 Check the signal level at TP5 (FL703) Replace ANT702 Check the Antenna Clip (ANT702) BT-WiFi will work properly LGE Internal Use Only - 150 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 151: Gps Ts
0.1u 1575.42 MHz L706 L705 C722 100p L704 R705 C726 RF_INP_GPS FIL_OUT U702 L707 4.7n GPS_LNA_EN C729 6.8p LGE Internal Use Only - 151 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 AVDD28_OSC GPS_AVDD13 AVDD13_SXIF_GPS AVDD13_LNA_GPS AVSS28_OSC C732 C733 AVSS13_RX_GPS AVSS13_SXIF_GPS 100n 100n +2V8_TCXO_LDO X701 TG-5025CG-26M C753 C752 OSC1_GPS 26MHz LGE Internal Use Only - 152 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 153 Check the signal level at TP4 (FL701) Replace ANT701 Check the Antenna Clip TP2 (ANT701) GPS will work properly LGE Internal Use Only - 153 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154: Fm Ts
VA504 VA505 VA506 L502 C524 100n MAIN GND Close to 3.5pi ear-jack R526 FM_RX_IN_N R527 HS_GND MAIN GND LGE Internal Use Only - 154 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 155 Give the addition solder in (R520,L501,L500) Good? (TP1 L501) Check Bias Voltage Replace U701 Good? FM will work properly LGE Internal Use Only - 155 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156: Download
TOOL VERSION DLL NAME USB DRIVER Please Check the Version to “B2B” Name Part No. Software D/L Cable LGE Internal Use Only - 156 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 5. DOWNLOAD E445 MS695 [LGFlashTool1.3.77.21]LGMS695_20120208_Download E445 LGE Internal Use Only - 158 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 169 5. DOWNLOAD [LGFlashTool1.3.77.21]LGMS695_20120208_Download LGMS695_20120208.dll LGMS695_20120208 E445 MS695 [LGFlashTool1.3.77.21]LGMS695_20120208_Download E445-011-V10c-310-410-OCT-19-2011+0. bin MS695 E445 MS695 LGE Internal Use Only - 169 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 176: Block Diagram
TPA2058D3 Charger IC RT9536 Memory 4GB NAND+ 4Gb LPDDR2 LED Driver IC LP5521TMX SIM#1 Touch SIM#2 IMAGIS IST-3032 LGE Internal Use Only - 176 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 177 LNA5N PRX_GSM1900_INP VDD_28b PMIC LNA5P GSM_PA_EN BPI_BUS5 TXEN GSM_PA_RAMP VRAMP ANT_SEL0 BPI_BUS0 MODE ANT_SEL1 BPI_BUS1 ANT_SEL2 BPI_BUS2 VSW_EN LGE Internal Use Only - 177 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 178 6. GPS on : TBDmA +2V8_CAM_AVDD 3M MIPI CAM +1V2_CAM_DVDD 1.Operating : TBDmA +1V8_CAM_VIO 2. HW Standby : TBDuW LGE Internal Use Only - 178 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 179 6. BLOCK DIAGRAM 4-1. HW Block Diagram : Memory, MICRO-SD, USIM [LG-E445] HW Block Diagram : Memory, MICRO-SD, USIM MT6575 4GB + 4Gb MCP H9TP32A4GDBCPR-KDM LPDDR2X32 4Gb Micro SD DDRAM_CLK_P CLK_T ED_CLK SD_CLK DDRAM_CLK_N MSDC1_CLK ED_CLK_B CLK_C SD_CMD DDRAM_CLK_EN ECKE...
Page 180 6. BLOCK DIAGRAM HW Block Diagram : LCD(MIPI 3.8”) / Touch [LG-E445] HW Block Diagram : LCD(MIPI 3.8”) / Touch MT6329 +2V8_LCD_VCI_MTK VCAMA +1V8_LCD_VIO_MTK VCAM_IO MT6575 LED_A Backlight I2C_COMMON_SCL LED_C1 SCL_1 I2C_COMMON_SDA (LM3639) SDA_1 LCD_BL_EN KP_ROW5 LCD_PWM LCD_PWM DPIG7 3.8″ LCD(MIPI)
Page 181 6. BLOCK DIAGRAM . HW Block Diagram : Camera (Main:3M FF) [LG-E445] HW Block Diagram : Camera (Main:3M FF) CAM_MCLK CMMCLK MCLK CAM_CLK_P CAM_CLK_N CAM_DATA_P Filter RDP[0:1] CAM_DATA_N RDN[0:1] MT6575 3M FF CAMERA MIPI CAM_RESET_N CMRST I2C_COMMON_SCL SCL_1 I2C_COMMON_SDA SDA_1...
Page 182 6. BLOCK DIAGRAM 4-4. HW Block Diagram : Audio Sub System [LG-E445] HW Block Diagram : Audio Sub System Battery TPA2058D3 MT6575 +VBAT SPK (Dual_mode) SPVDD SPK_OUT_P +1V8_VIO_MTK OUT+ VIO18 HPVDD VMIC SPK_OUT_N AVDD25_VMIC OUT- IN3+ IN3- RCV_SPK_P MIC_P AU_VIN0_P...
Page 183 0 Not inverted) COMPASS_DRDY KP_ROW4 DRDY PROXIMITY SENSOR APDS-9190 PROX_INT LEDA EINT3 MT6329 +3V0_SENSORS_MTK VCAM_AF +1V8_VIO_MTK VIO18 +3V0_PROX_MTK LGE Internal Use Only - 183 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 184 SD1_CMD MSDC3_CMD SD1_CMD SD1_CLK MSDC3_CLK SD1_CLK SD1_DAT0 MSDC3_DAT0 SD1_DAT0 SD1_DAT1 MSDC3_DAT1 SD1_DAT1 SD1_DAT2 MSDC3_DAT2 SD1_DAT2 SD1_DAT3 MSDC3_DAT3 SD1_DAT3 LGE Internal Use Only - 184 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 185: Circuit Diagram
PA_R0 GND2 GND5 VMODE C178 L119 PA_ON_W850_W900 GND3 GND4 C172 C173 1.8p R111 C174 C175 49.9 100p 100p - 185 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 186 URXD1_MD JTAG_TDO X201 FC-135 X-TAL_OUT X-TAL_IN 32.768KHz C253 C254 RGB_EN R217 For MT6620 PMU +2V5_AVDD1_MTK R218 GPIO44 GPIO45 - 186 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 187 R333 DDRAM_DQS_[3]_N DQS3_C eMMC_RST R334 DDRAM_DQS_[3]_P DQS3_T eMMC_CMD R335 CLKM eMMC_CLK DDRAM_DQM_[0] R336 DDRAM_DQM_[1] +1V8_VIO_MTK DDRAM_DQM_[2] DDRAM_DQM_[3] - 187 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 188 LED1_F LCD_PWM LED2_F FL402 HJ-BCT-03Y HJ-BCT-03Y IFMODE1 LCD_MIPI_DATA0_N LCD_MIPI_DATA0_P IFMODE0 TP401 LCD_MIPI_CLK_N LCD_MIPI_CLK_P LCD_MAKER_ID C408 C409 2.2u 2.2u - 188 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 189 GND2 GND5 C534 C535 GND3 GND4 GND3 GND4 VA509 VA510 VA511 VA512 VA513 VA514 SD_DETECT C540 2.2u C541 2.2u - 189 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 190 USB_ID VA603 KCOL1 VA604 VA605 C620 VA606 D602 SW604 R624 FL602 KROW1 VA607 USBH_DM USBH_DP R625 KCOL6 VA608 - 190 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 191 3. GND clearance over 2mm direction to MT6620 side 4. Spacing between TCXO and MT6620 over 2mms as possible. - 191 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 192: Bga Pin Map
8. BGA PIN MAP 8. BGA PIN MAP U101 MT6162 (Transceiver) U101 MT6162 (Transceiver) Not Used LGE Internal Use Only - 192 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 193 8. BGA PIN MAP U302 H9TP32A4GDBCPR-KGM U302 H9TP32A4GDBCPR-KGM Not Used LGE Internal Use Only - 193 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 194 8. BGA PIN MAP U201 MT6575 (Digital Baseband Processor,3G) U201 MT6575 (Digital Baseband Processor,3G) Not Used LGE Internal Use Only - 194 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 196 8. BGA PIN MAP U401 RT8542 LCD booster U401 RT8542 LCD booster ALL Used LGE Internal Use Only - 196 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 197 M501 (TPA2058D3 Audio AMP) 8. BGA PIN MAP M501 (TPA2058D3 Audio AMP) ALL Used LGE Internal Use Only - 197 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 198: Pcb Layout
Function : FM radio Function : Proximity Sensor - no Sound - no Proximity SW601 LD402 LD401 LG-E445_MAIN_EAX6516560_1.1_TOP - 198 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 199 Function : Microphone Function : Main antenna connection CN602 - no Mic (no voice) - no Service LG-E445_MAIN_EAX6516560_1.1_BOT-1 - 199 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 200 Function : 3G PAM (band 8) - no charging, CN602 - 3G no Service - no usb connection LG-E445_MAIN_EAX6516560_1.1_BOT-2 - 200 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 201: 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 - 201 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 202 10. CALIBRATION E445 MS695 [Tachyon36]LGMS695_20120213_Calibration LGE Internal Use Only - 202 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 206 10. CALIBRATION E445 MS695 LGE445 LGE445 E445 MS695 E445 MS695 MS695 E445 MS695 E445 MS695 E445 MS695 LGE445 LGE Internal Use Only - 206 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 218 10. CALIBRATION E445 MS695 E445 MS695 MS695 E445 MS695 MS695 E445 MS695 E445 MS695 E445 MS695 LGE Internal Use Only - 218 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 221: Hidden Menu
8. Touch Draw Test 9. Motion Sensor Test 10. GPS BT WIFI Test 11. FM Radio Test 12. Loopback Test LGE Internal Use Only - 221 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 222 Phone contact with your fingers in the top of the sensor determine the sensor response - Far - Near LGE Internal Use Only - 222 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 223 • Check the Black display • Check the White display • Check the Home key LED • Check MURA 2.0 mm LGE Internal Use Only - 223 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 224 AAT Device Test -> Vibrator test A case-by-state vibration tests AAT Device Test -> Touch window test Write with finger LGE Internal Use Only - 224 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 225 • Check the WIFI scanning • Check the BT scanning AAT Device Test -> FM Radio Test • Check the FM Radio LGE Internal Use Only - 225 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 226 Manual Mode : Test selectivity ELT Test – Automatic mode Automatic Mode : LCD Automatic on/off test -> time setting LGE Internal Use Only - 226 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 227 - Audio - Vibrator - Camera - Sensor - External Memory - GPS - RTC - Battery - ETC LGE Internal Use Only - 227 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 228 LCD Module Test LCD Display Test Mura Test : leakage of Light uniformity Keypad test list - Dop - Qwerty LGE Internal Use Only - 228 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 229 Device Test - Audio Test - Ring - Effect Sound - Message Tone Device Test - Vibrator -On/Off -Duration LGE Internal Use Only - 229 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 230 - File Creation in SD Card - File Modification in SD Card - File deletion in SD Card LGE Internal Use Only - 230 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 231 • Battery Health • Battery Mode of Charging • Battery Level • Battery Technology • Battery Voltage • Battery Temperature LGE Internal Use Only - 231 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 232 - Baseband Version - Kernel Version - HW Version - Factory Version - Touch Firmware Version - Build finger print LGE Internal Use Only - 232 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 233 Settings – Diag Settings Diag Settings - USB Set for Diag - UART Set for Diag - Null port LGE Internal Use Only - 233 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 234 -> Headset Mode -> LoudSpeaker Mode -> Speech Enhancement -> Debug Info -> Speech Logger -> Audio Logger LGE Internal Use Only - 234 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 235 - Camera Clock Settings Settings – Bluetooth Bluetooth Settings Settings – ERS ERS Settings - Client Status - ERS Test LGE Internal Use Only - 235 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 236 - DRM Test - Contacts Test - Log service - Flex test - SMPL Counter - North America APN Settings LGE Internal Use Only - 236 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 237 - Dual Talk NetworkInfo - Modem Test - Network Setting - GPRS - Fast Dormancy - Simme Lock LGE Internal Use Only - 237 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 238 - SD Card Test - TouchScreen - USB WCDMA Only – Modem Settings Location Location - Location Based Service - YGPS LGE Internal Use Only - 238 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 239 - LCD Always On - FS_TEST - Hidden Reset - Heap Free Info - Stability Test - Charging Test LGE Internal Use Only - 239 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 240 - Change UAString - View UAString - Edit UAString - Enable/Disable X-wap-profile - Display Certificates - Change UAPROFILE LGE Internal Use Only - 240 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 241 Enable of disable creating below log files. - Maing log - System log - Radio log - Events log - Kernel log LGE Internal Use Only - 241 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 242 WCDMA Only – SMPL Counter SMPL Counter WCDMA Only – North America APN Settings North America APN Settings LGE Internal Use Only - 242 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 243 Fake Language Switch to Fake language mode On/Off GPS Test gpsApp Test gpsApp Test Test Air Test(Enable / Disable) LGE Internal Use Only - 243 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 245: Disassemble Guide
12. DISASSEMBLE GUIDE 12. DISASSEMBLE GUIDE 1. Disassemble Battery Cover , Rear 1. Remove Battery cover 2. Remove Battery LGE Internal Use Only - 245 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 246 2. Disassemble MOTOR A. Remove screw from Rear cover B. Take apart the Rear cover starting from corner LGE Internal Use Only - 246 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 247 A. Take apart the Motor from Rear cover B. Take apart the Main antenna from Rear cover (Pushing Hook) LGE Internal Use Only - 247 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 248 12. DISASSEMBLE GUIDE 4. Disassemble PCB Take apart the FPCB connector , then separate PCB from Front cover LGE Internal Use Only - 248 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 249 A. Take apart the Camera connector B. Take apart the Hooks, then separate Bracket from PCB C. Take apart the Camera and Speaker LGE Internal Use Only - 249 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 250 12. DISASSEMBLE GUIDE 6. Disassemble Shield Can Take apart the Shield can from PCB 7. Disassembled Components LGE Internal Use Only - 250 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 251: Exploded View & Replacement Part List
13. 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 - 251 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

LG -E445 Service Manual

1 Introduction

2 Performance

3 CIC and Service Center

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 Bga Pin Map

9 Pcb Layout

10 Calibration

11 Hidden Menu

12 Disassemble Guide

13 Exploded View & Replacement Part List

Quick Links

Troubleshooting

Related Manuals for LG LG-E445

Summary of Contents for LG LG-E445

Table of Contents