Page 1 Internal Use Only Service Manual LG-D722K Date: Sep, 2014 / Issue 1.0...
Page 2: Table Of Contents
3.12 Audio .....................109 3.13 LCD ......................122 3.14 Touch .....................124 3.15 Sensor ....................126 3.16 USB ......................130 3.17 Camera ....................132 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...
Page 5: Specifications
Capacitive Touch Screen – Glass with fast and accurate response • Touch Vibration for Tactile Feedback • Micro USB Charging Port LGE Internal Use Only - 5 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 6 MTP – transfer files between microSD™ card and PC* *USB cable (sold separately) and microSD card (included) required. LGE Internal Use Only - 6 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 7 • Android Apps: Browser, Calculator, Calendar (Corporate or Google), Camera, Clock, Contacts, Email, Gallery, Gmail, Market, Messaging, Music, Phone, Settings, Voice Recorder, Voice Search • Wi-Fi Connectivity – IEEE 802.11b/g/n/a LGE Internal Use Only - 7 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 8 LTE B8 880-915 925-960 LTE B40 2300~2400 2300~2400 BT/WiFi 2400 MHz ~ 2483.5 MHz 1574.42 MHz ~ 1576.42 MHz LGE Internal Use Only - 8 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 9 Bluetooth Hands-free kit (Optional) • Stereo Headset (Optional) • Vehicle Power Charger (VPC) (Optional) • Quick Window Cover (Optional) LGE Internal Use Only - 9 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10: Performance
EGSM TX : 880 – 915 MHz EGSM RX : 925 – 960 MHz GSM850 TX : 824 – 849 MHz LGE Internal Use Only - 10 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 11 Band 7 : 5/10/15/ bandwidths) 20MHz * Nominal Channel Band 8 : spacing = 1.4/3/5/10MHz (BWchannel(1) + Band40 : BWchannel(2))/2 5/10/15/20MHz LGE Internal Use Only - 11 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 12: Main Parts : Main Chipset Solution
DCS 1800 : -104.6dBm GPRS compatibility GPRS Class 12 PCS 1900 : -104.6dBm GPRS compatibility GPRS Class 12 LGE Internal Use Only - 12 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 13 Built in Vibrator Blue Tooth Bluetooth 4.0 + BLE MIDI(for Buzzer SW Decoded 72Poly Function) Music Player MP3/WMA/AAC/MIDI/EAAC+/HEAAC/OGG LGE Internal Use Only - 13 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 14 Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash Yes ( Up to 32GB ) (External Memory) LGE Internal Use Only - 14 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 15: Sw Features
: -98dBm/-96dBm (2.439%) AM Suppression GSM : -31dBm -98dBm/-96dBm (2.439%) DCS : -29dBm Timing Advance ± 0.5T LGE Internal Use Only - 15 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 16 < -41 dBm / 300 kHz RW @ 1884.5 MHz < f < 1919.6 Transmit Intermodulation < -31 dBc @ 5 MHz &< -41 dBc @ 10 MHz LGE Internal Use Only - 16 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 17 +1.5/4 -0.5/-1.5 -1/-3 -1.5/-4 In Uplink 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 LGE Internal Use Only - 17 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 18 +/- 2.3 HS-DPCCH Start of CQI +/- 0.6 Middle of CQI +/- 0.6 End of CQI +/- 2.3 LGE Internal Use Only - 18 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 19 R >= 700kbps Maximum Input Level (BLER or R), 16QAM Only BLER < 10% or R >= 700kbps LGE Internal Use Only - 19 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 20 < -15 dB at Pout ≥ -20 dBm Peak Code Domain Error ※Under by rules of 3GPP TS 36.521-1 Standard LGE Internal Use Only - 20 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 21 < -47 dBm / 1 MHz BW @ 1 GHz ≤ f ≤ 12.75 GHz ※Under by rules of 3GPP TS 36.521-1 standard. LGE Internal Use Only - 21 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 22 ≥ -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 - 22 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 23 ※ACR shall be measured by setting the desired signal's stre ngth 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 23 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 24 ※ACR shall be measured by setting the desired signal's stren gth 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 24 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 25 ≤ ±20 TX Center Frequency 17.3.9.4 Tolerance ≤ ±10 ≤ ±20 Tx Chip clock Freq. 17.3.9.5 Tolerance ≤ ±10 LGE Internal Use Only - 25 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26 (4.5.2) Office environments 0~ 40 17.3.8.8 ℃ Temp Industrial -20 ~ 50 17.3.8.8. ℃ environments -30 ~ 70 LGE Internal Use Only - 26 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 27 Standard Voltage : 3.8 V, Battery Full Charge Voltage : 4.35V Standard Voltage : 3.8 V, Battery Full Charge Voltage : 4.35V LGE Internal Use Only - 27 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 28 15% , 5%, 0% Bar 10 -> Bar 9 48% -> 47% Low battery pop-up 15% , 5%, 0% LGE Internal Use Only - 28 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 29: Trouble Shooting
The output frequency(19.2MHz) of XO(X4100) is used as the reference one of WTR1625L and PM8926 internal VCO X4100 R4106 100K G_L12 TOL=0.01 X4100 X1E0002910001 Thermistor XTAL2 XTAL1 GND/Therm 19.2MHz TP1 (C4102) TP1 (C4102) LGE Internal Use Only - 29 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30 XO Circuit is OK. Check next step The Problem may be Logic part Refer to Logic trouble shoot LGE Internal Use Only - 30 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 31: Checking Transceiver Dc Power Supply Circuit Block
GNSS_BB_QM WTR0_PRX_HB1_IN PRX_HB1_IN R1503 4.75K PRX_HB2_IN RTUNE TOL=0.01 WTR0_PRX_HB3_IN PRX_HB3_IN U1500 PRX_HMB4_IN WTR0_PRX_HMB4_IN DAC REF WTR0 DAC IREF LGE Internal Use Only - 31 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 32 The Problem may be Logic part Check TP2 +2.05 V is OK? Refer to Logic trouble shoot Check next step LGE Internal Use Only - 32 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 33: Checking Dc-Dc Block
Test Point U1400 Circuit Diagram SGND PVIN1 PVIN2 PACB U1400 RFFE1_CLK SCLK LM3263 SVDD RFFE1_DATA SDATA PGND L1400 1.5u LGE Internal Use Only - 33 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34 Check U1000 Physical Damage or Check TP4 soldering condition 0.5V ≤ TP4 ≤ 3.8V ? Check next step LGE Internal Use Only - 34 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 35: Checking Femid Block (Gsm, W B1/2/5/8, Lte B1/2/3/7/8/20)
3.4 Checking FEMiD Block (GSM Quad, W B1/2/5/8, LTE B1/3/8/40) FL1201 TP1(2.75V) TP2(1.8V) +1V8_VREG_L10 +2V75_VREG_L14 TP1(2.75V) TP2(1.8V) SCLK TRX6 H LGE Internal Use Only - 35 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36 The Problem may be Logic part Check TP2 High Level ? (1.65V≤TP1 ≤1.95V) Refer to Logic trouble shoot Check next step LGE Internal Use Only - 36 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 37: Gsm Rf Part
Check Transceiver DC Power supply Block Refer 3.2 Check FEMid Block Refer 3.3 Check T/RX Block Re-Download & Cal Change the Board LGE Internal Use Only - 37 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 2. GSM900 RX PATH 3. GSM1800/1900 RX PATH 4. High Band T/RX PATH 5. Low Band T/RX PATH SW1101 LGE Internal Use Only - 38 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 39 SW1101 C10061 COMMON TP1(L10062) TP1(L10062) L10062 L10061 0.5p TP1(L10062) ANT2(B1,B2,B3,B TP2(C1109) SW1102 COMMON TP2(C1109) C1109 4.7p C1112 C1111 LGE Internal Use Only - 39 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40 Check SW1101 Soldering Check next step 2) GSM1800/1900 START Check TP2 Signal exist? Check SW1102 Soldering Check next step LGE Internal Use Only - 40 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 41 WTR0_PRX_LB2_IN TP1(L1210) TP2(L1214) C1218 L1214 C1220 WTR0_PRX_LB3_IN TP2(L1214) C1221 TP3(L1221) L1221 4.7n C1234 C1244 100p WTR0_PRX_MB2_IN TP3(L1221) C1237 LGE Internal Use Only - 41 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42 Check TP1/2/3 Signal exist? NOT GOOD Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 42 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 43 3. GSM1800/1900 TX Output 4. GSM1800/1900 TX Output 5. High Band T/RX PATH 6. Low Band T/RX PATH SW1101 LGE Internal Use Only - 43 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44 SCLK R1303 RFFE1_DATA VCC2 SDATA VCC_GSM GND3 +VPA_BATT0 GND13 VBATT RFOUT_GSM_HB GND4 GND12 RFIN_GSM_HB RFOUT_GSM_LB RFIN_GSM_LB TP1(C1318) TP1(C1318) LGE Internal Use Only - 44 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 45 Control CLK & Data Check correct CLK The Problem may be Logic part (19.2MHz)& MIPI data? Check Next step LGE Internal Use Only - 45 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 Check next step 2) GSM1800/1900 START Check TP1 Check SW1001 Soldering If DCS/PCS under 28dBm? Check next step LGE Internal Use Only - 46 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 47 C1321 C1322 GSM_HB WTR0_TX_MB2_OUT TP4 (C1322) TP4 (C1322) C1324 C1325 ATT, EU GSM_LB WTR0_TX_LB2_OUT TP3 (C1325) TP3 (C1325) LGE Internal Use Only - 47 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48 If DCS/PCS Over 5dBm? NOT GOOD Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 48 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 49: Wcdma Rf Part
Check Checking DC-DC Block Refer 3.3 Check FEMid Block Refer 3.4 Check T/RX Block Re-Download & Cal Change the Board LGE Internal Use Only - 49 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 Low Band T/RX PATH WCDMA B1 DRX PATH WCDMA B1 DRX PATH WCDMA B8 RX PATH COMMON DRX PATH SW1101 LGE Internal Use Only - 50 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 51 Test Point SW1103 SW1103 Circuit Diagram SW1103 C1150 100p C1124 COMMON FEED ANT1102 L1117 L1118 TP1(C1124) TP1(C1124) TP1(C1124) LGE Internal Use Only - 51 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52 3. TROUBLE SHOOTING START Check TP21Signal exist? Check SW1103 Soldering Check next step LGE Internal Use Only - 52 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 53 GND2 LO-BAND C1105 TP5(L1210) 2.2n TP4(L1206) L1210 L1206 C1215 C1208 WTR0_PRX_HMB4_IN WTR0_PRX_LB2_IN 1.2n TP4(L1206) TP5(L1210) L1207 1.8n C1218 LGE Internal Use Only - 53 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54 Check TP3 Signal exist? Check FL1201 Soldering Check TP4/5 Signal exist? Check TP4/5 Signal exist? Check next step LGE Internal Use Only - 54 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 55 HI-BAND C1127 COMMOM GND3 TP3(C1164) GND2 LO-BAND C1162 TP3(C1164) C1120 L1113 C1141 L1132 TP5(L1132) TP4(L1113) TP4(L1113) L1114 TP5(L1132) LGE Internal Use Only - 55 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56 Signal exist? Check TP3 Check U1100 Soldering Signal exist? Check TP4/5 Replace U1500 Signal exist? Check next step LGE Internal Use Only - 56 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 57 WCDMA B2 TX PATH WCDMA B5 TX PATH WCDMA B8 TX PATH High Band T/RX PATH Low Band T/RX PATH LGE Internal Use Only - 57 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58 SCLK R1303 RFFE1_DATA VCC2 SDATA VCC_GSM GND3 +VPA_BATT0 GND13 VBATT RFOUT_GSM_HB GND4 GND12 RFIN_GSM_HB RFOUT_GSM_LB RFIN_GSM_LB TP1(C1318) TP1(C1318) LGE Internal Use Only - 58 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 59 Control CLK & Data Check correct CLK The Problem may be Logic part (19.2MHz)& MIPI data? Check Next step LGE Internal Use Only - 59 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60 Check SW1101 Soldering Check next step 2) WCDMA 1900/2100 START Check TP2 Signal exist? Check SW1102 Soldering Check next step LGE Internal Use Only - 60 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 61 TP4(C1105) 1.5n C1305 3.3n FL1103 LDJ1882 TP7(C1302) Termination_Port GND2 Coupling C1304 C1302 TP6(C1317) L1310 L1311 TP6(C1317) 7.5n 8.2n LGE Internal Use Only - 61 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62 Check U1300 Soldering Signal is over 21dBm Check TP7 Replace U1500 Signal is over 3.5dBm Check next step LGE Internal Use Only - 62 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 63 C1320 3.9n 1.5n TP6(C1323) FL1103 LDJ1882 Termination_Port L1312 L1313 GND2 C1314 C1315 Coupling 1.5p 1.5p TP7(C1314) C1323 1.2n TP6(C1323) LGE Internal Use Only - 63 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64 Check U1300 Soldering Signal is over 21dBm Check TP7 Replace U1500 Signal is over 3.5dBm Check next step LGE Internal Use Only - 64 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 65: Lte Rf Part
Check Checking DC-DC Block Refer 3.3 Check FEMid Block Refer 3.4 Check T/RX Block Re-Download & Cal Change the Board LGE Internal Use Only - 65 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66 3.7.1.2 Checking RF signal path(SW) Refer to 3.6.2.2 about TX 3.7.1.3 Checking RF signal path Refer to 3.6.2.3 (B1) 3.6.2.4 (B8) LGE Internal Use Only - 66 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 67 U1300 FL1201 SW1102 LTE B3 PRX PATH LTE B3 PRX PATH LTE B3 TX PATH COMMON T/PRX PATH LGE Internal Use Only - 67 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68 3.7.2.2 Checking RF signal path(SW) Refer to 3.5.1.1 START Check TP2 Signal exist? Check SW1102 Soldering Check next step LGE Internal Use Only - 68 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 69 Termination_Port GND2 Coupling GND1 GND6 GND2 GND5 GND3 GND4 C1312 2.7n C1307 2.7n C1306 TP5(C1306) TP4(C1312) TP4(C1312) TP5(C1306) LGE Internal Use Only - 69 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70 Check U1300 Soldering Signal is over 3dBm? Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 70 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71 U1751 FL1750 SW1101 LTE B7 PRX PATH LTE B7 PRX PATH LTE B7 TX PATH COMMON T/PRX PATH LGE Internal Use Only - 71 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72 RFFE1_CLK Refer to 4.6.2.1 ACPM-9307-TR1 U1751 VCC1 VCC2 SCLK VBAT RFOUT RFIN SDTA TP2(C1763) PGND TP1(C1766) TP2(C1763) TP1(C1766) LGE Internal Use Only - 72 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73 Check MIPI CLK & Data in each mode Check U2100 Part is OK? Refer 4.6.2.1 Check Next step LGE Internal Use Only - 73 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74 3.7.3.2 Checking RF signal path(SW) Refer to 3.5.1.1 START Check TP1 Check SW1101 Soldering If Signal is over 21dBm? Check next step LGE Internal Use Only - 74 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75 VCC2 SCLK VBAT C1757 C1760 TP6(C1757) RFOUT RFIN GND1 GND4 SDTA GND2 GND5 GND3 GND6 PGND 2655MHz TP6(C1757) LGE Internal Use Only - 75 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76 Check FL1705 Soldering TP5 signal is exist? Check TP7 Check U1500 Soldering Signal is over 3dBm? Check next step LGE Internal Use Only - 76 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 77 3.7.4 LTE B40 TX/PRX LTE B40 TX/PRX RF PATH U1500 FL1102 SW1101 U1800 LTE B40 PRX PATH LTE B40 TX PATH LGE Internal Use Only - 77 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 79 Check MIPI CLK & Data in each mode is OK? Check U2100 Part Refer 4.6.2.1 Check Next step LGE Internal Use Only - 79 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80 3.7.4.2 Checking RF signal path(SW) Refer to 3.5.1.1 START Check TP1 Check SW1101 Soldering If Signal is over 21dBm? Check next step LGE Internal Use Only - 80 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 81 VCC1 VCC2 VCC1 PGND GND1 GND6 PGND C1806 L1710 L1707 GND2 GND5 7.5n TP6(C1804) GND3 GND4 C1714 TP5(C1803) LGE Internal Use Only - 81 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 Check U1800 Soldering TP5 is over 21dBm? Check TP6 Check U1500 Soldering Signal is over 3dBm? Check next step LGE Internal Use Only - 82 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 83 3.7.6 LTE B3 DRX LTE B3 DRX RF PATH LTE B3 DRX RF PATH FL1105 U1100 SW1103 SW1103 FL1106 FL1106 U1500 LGE Internal Use Only - 83 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 GND1 HI-BAND C1127 COMMOM GND3 GND2 LO-BAND TP3(C1164) C1162 TP3(C1164) TP4(L1115) C1123 L1115 WTR0_DRX_MB3_IN L1116 TP4(L1115) 3.9n C1128 LGE Internal Use Only - 84 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85 Check FL1106 Soldering Check U1100 Soldering Check TP3 Signal exist? Check TP4 Signal exist? Replace U1500 Check next step LGE Internal Use Only - 85 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 3.7.7 LTE B7 DRX LTE B20 DRX RF PATH LTE B7 DRX RF PATH FL1105 U1100 SW1103 SW1103 FL1106 FL1106 U1500 LGE Internal Use Only - 86 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 87 FL1105 GND1 HI-BAND C1127 COMMOM GND3 TP3(C1164) GND2 LO-BAND C1162 TP3(C1164) TP4(L1144) C1158 WTR0_DRX_HB3_IN L1144 2.2n TP4(L1144) C1161 LGE Internal Use Only - 87 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88 Check FL1106 Soldering Check U1100 Soldering Check TP3 Signal exist? Check TP4 Signal exist? Replace U1500 Check next step LGE Internal Use Only - 88 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 89 3. TROUBLE SHOOTING 3.7.8 LTE B40 DRX LTE B40 DRX RF PATH FL1105 U1100 FL1104 SW1103 U1500 LGE Internal Use Only - 89 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 FL1104 U1500 TP3(L1105) 885049 FL1104 C1106 C1107 L1105 GRFC_20 G1 G2 G3 C1125 100p C1113 TP2(C1106) FL1105 TP1(C1125) LGE Internal Use Only - 90 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 91 Signal exist? Check TP2 Check FL1104 Soldering Signal exist? Check TP3 Replace U1500 Signal exist? Check next step LGE Internal Use Only - 91 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92: Bt&Wifi Part
Power for BCM4334 analog, digital circuits. VDD_LN Power for WLAN driver amplifier circuits VBAT_FEM Power for WLAN 2.4GHz PA circuits LGE Internal Use Only - 92 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 93 3. TROUBLE SHOOTING BT&WIFI control signals are generate by BCM4334 BT/WIFI Antenna Clip BT/WIFI Circuit BT/WIFI PATH & TEST POINT(BOT) LGE Internal Use Only - 93 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94 Close to C8 ball +VPWR_WL VDD_LN RF_SW_CTRL_0 RF_SW_CTRL_1 RF_SW_CTRL_2 RF_SW_CTRL_3 Close to H4 ball RF_SW_CTRL_4 RF_SW_CTRL_5 R5300 +VPWR_WL +VPWR R5301 VBAT_FEM LGE Internal Use Only - 94 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 95 ANT5101 Diplexer(2.4G/5G BPF) FL5100 ESD OPTION C5102 GND2 C5101 2G_WLAN_RF 1.2n GND3 GND1 5G_WLAN_RF C5199 C5232 C5233 0.5p LGE Internal Use Only - 95 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96: Gps Part
Check Transceiver DC Power supply Block Refer 3.1 Check GPS RF Block Refer 3.2 Re-Download Change the Board LGE Internal Use Only - 96 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 97 Shooting 4. 9. GPS Part 3. TROUBLE SHOOTING GPS RF PATH GPS RF PATH LGE Internal Use Only - 97 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98 NEAR TO WTR FL1109 C1148 100p C1149 100p RFOUT1 FL1108 RFIN SFMG2B0D001 RFOUT2 L1153 C1159 100p C1160 100p LGE Internal Use Only - 98 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 99 Check TP1 2.75V OK? part The Problem may be Other part Check Logic Check TP2 1.4V≤TP2≤3.0V? part Check Next step LGE Internal Use Only - 99 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100 C1148 100p C1149 100p GNSS_IN_N RFOUT1 FL1108 RFIN SFMG2B0D001 RFOUT2 L1153 C1159 100p C1160 100p GNSS_IN_P n Circuit LGE Internal Use Only - 100 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 101 Check TP3 Signal exist? NOT GOOD Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 101 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102: Power
Check it’s 19.2Mhz Is the signal high at R4104, TP2106 ? Phone doesn’t boot yet? Change the main board LGE Internal Use Only - 102 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 103 4. Trouble 3. TROUBLE SHOOTING Shooting 4. 10. Power PM8926 power on sequence PM8926 power on sequence LGE Internal Use Only - 103 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 104 It should be high when power on CBL_PWR_N KPD_PWR_N PM_KYPD_PWR_N OPT_2 OPT_1 JTAG_PS_HOLD R4104 PS_HOLD MSM_PS_HOLD R4105 RESIN_IN PON_RESET_N MSM_RESIN_N - 96 - LGE Internal Use Only - 104 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 105 PON_RESET_N MSM_RESIN_N R4107 SPMI_CLK PMIC_SPMI_CLK R4108 SPMI_DATA PMIC_SPMI_DATA -PON_RESET_N It should be high when phone boot with battery LGE Internal Use Only - 105 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 106: Charger
Each capacitor GND should be star routed to their respective reference ground (GND_S1, GND_S2, GND_S3, GND_S4) CHG_PGND Then input caps should via directly to main ground LGE Internal Use Only - 106 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 107 Is the uUSB Cable voltage 5.0V Change TA (or uUSB Cable) Is it charging properly After turning on? Change the main board LGE Internal Use Only - 107 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 109: Audio
Replace component Fail on TP5 -> replace U6100 U2100 or main board U6100 Fail on TP6 -> replace U4940 LGE Internal Use Only - 109 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 110 C-CLIP PN CHANGE 1.4 -> 2.05 (L6612) (DGMS Guide) MC-C04773-8 : For ESD Protection / Tuning points (L6611) (L6612) LGE Internal Use Only LGE Internal Use Only - 110 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 111 2. We recommend MLCC capacitor in this case. SPKR_DRVP SPK_P SPKR_DRVM SPK_N VDD_SPKDRV +5V0_SPK_BOOST GND_SPKDRV_1 GND_SPKDRV_2 (C6109) (C6109) GND4 (C6109) LGE Internal Use Only (FB6100) LGE Internal Use Only - 111 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 112 TP1 to TP2/TP3 to TP4 Short test. Is it OK? Rework component TP1(L6450), TP3(L6451) Works well? Replace component U6100 LGE Internal Use Only - 112 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 113 MC-C04773-8 : For ESD Protection / Tuning points When USE) TVS devices's Working Voltage must be greater Main Top (L6450) (L6451) LGE Internal Use Only LGE Internal Use Only - 113 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 114 Check Mic signal in Main Board TP1(MIC_BIAS_1) TP2(MIC1_IN_P) Replace component MIC6920 Replace component U6100. Voice signal OK? Change Main Board LGE Internal Use Only - 114 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 115 MC-C00074-11 : For ESD Protection (FB6920) When USE) TVS devices's Working GND Close to MIC (C6920) (FB6920) LGE Internal Use Only LGE Internal Use Only - 115 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116 Check Mic signal in Main Board TP1(MIC_BIAS_1) TP2(MIC3_IN_P) Replace component MIC6921 Replace component U6100. Voice signal OK? Change Main Board LGE Internal Use Only - 116 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 117 MC-C00074-11 : For ESD Protection / Tuning p When USE) TVS devices's Work GND Close to MIC (FB6921) (C6922) LGE Internal Use Only LGE Internal Use Only - 117 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118 TP2(HPH_L), TP3(HPH_R), TP4(HPH_ TP5(-NCP_VNEG), TP6(NPC_C1P) When headset inserted. REF) Replace component U6100 Replace component U6100 Replace component U6600 LGE Internal Use Only - 118 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 119 Dedicate a g LGE Internal Use Only NCP_C1P C6108 (DGMS Guide) MC-C06162-1 : 1. D -NCP_C1M SPKR_DRVP SPKR_DRVM ATA/I2C_SDA (C6108) LGE Internal Use Only - 119 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 120 Check Main Board TP1(MIC) Replace component U6100 TP2(MIC_IN2_N) is GND level? When headset inserted. Replace component R6616 Replace component U6600 LGE Internal Use Only - 120 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 121 MIC_BIAS_2 +VPWR 2.4M 2.2K U6600 FSA5157L6X R6424 330K MIC_IN2_N (R6616) C6606 (R6616) (R6616) (FB6600) LGE Internal Use Only LGE Internal Use Only - 121 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 122: Lcd
LCD display OK? Check +2V8_VREG_L15 (C7101) Change the PM8926 (U4100) or +1V8_VREG_L8 (C7103) main BD. LCD display OK? LGE Internal Use Only - 122 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 123 PMIC_LED_A PMIC_LED_C FL15002 LCD_MAKER_ID FL7101 LCD_MIPI_DATA2_N LCD_MIPI_DATA2_P LCD_MIPI_DATA3_N LCD_MIPI_DATA3_P ADD at PMIC_LED_A, LED_C Bead/Cap TP1 +1V8_VREG_L8 TP2 +2V8_VREG_L15 LGE Internal Use Only - 123 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124: Touch
(C7201) Change PM8926 (U4100) +1V8_VREG_L6 (C7505) Check I2C Line Change Main Board. (VA7201, VA7202) Touch Woks OK ? LGE Internal Use Only - 124 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 125 +1V8_VREG_L6 TOUCH_I2C_SDA +2V8_VREG_L28 TOUCH_INT TOUCH_MAKER_ID TP1 +2V95_VREG_L28 (C7200) (I2C Line & Signal Line) (VA7201 & VA7202) +1V8_VREG_L6 (C7201) LGE Internal Use Only - 125 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 126: Sensor
+2V85_VREG_L19 (C8101) Check I2C Line. (R2207, R2208) Change Main Board. Change the sensor (U8100). Sensor Woks OK ? LGE Internal Use Only - 126 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 127 INT2 GND3 +2V85_VREG_L19 COMPASS_INT DRDY LEDK LEDA C8401 C8400 Sensors R2207 2.2K SENSOR0_I2C_SDA +1V8_VREG_LVS1 R2208 2.2K SENSOR0_I2C_SCL U8100 LGE Internal Use Only - 127 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 128 +1V8_VREG_LVS1 (R8400) Check I2C Line. (R2207, R2208) Change Main Board. Change the proximity sensor (U8400). Sensor Woks OK ? LGE Internal Use Only - 128 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 129 C8400 Sensors R2207 2.2K SENSOR0_I2C_SDA +1V8_VREG_LVS1 Sensors R2208 2.2K R2207 2.2K SENSOR0_I2C_SCL SENSOR0_I2C_SDA +1V8_VREG_LVS1 R2208 2.2K SENSOR0_I2C_SCL U8400 LGE Internal Use Only - 129 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130: Usb
Cable is inserted? Check C10001 Check VCHG is 5V? Check R9202 USB_DP is 3.05V? Change the Main Board LGE Internal Use Only - 130 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 131 ID when MSM PHY is off VCHG Check : C10001 USB_DP : R9202 - 123 - LGE Internal Use Only - 131 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132: Camera
Check the EMI Filter signals Change the EMI Filter CIK/Data TP6 Change the Camera Camera is OK? Change the Main board LGE Internal Use Only - 132 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 133 CN7300 MAIN_CAM0_RESET_N FL7301 +1V2_VREG_L5 +1V8_CAM_IOVDD MAIN_CAM0_MIPI_DATA1_P FL7302 +2V8_EXT_LDO1 MAIN_CAM0_MIPI_DATA1_N MAIN_CAM0_MIPI_DATA0_P MAIN_CAM0_MIPI_DATA3_P MAIN_CAM0_MIPI_DATA0_N MAIN_CAM0_MIPI_DATA3_N MAIN_CAM0_MIPI_DATA2_P MAIN_CAM0_MIPI_DATA2_N FL7300 MAIN_CAM0_MIPI_CLK_P MAIN_CAM0_MIPI_CLK_N LGE Internal Use Only - 133 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134 +1V2_VREG_L5 R7401 VT_CAM_MCLK +1V8_CAM_IOVDD CAM0_I2C_SDA CHANGE_PART CAM0_I2C_SCL 1.SEVY0005402_>_EAH61533301 2.REF_DGMS_CHECK_LIST VT_CAM_RESET_N VA7400-7403 : Clamping 12.8V / 15pF / 50W LGE Internal Use Only - 134 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 135: Download
Please Check the Version to “B2B” Name Part No. Software D/L Cable Micro 5P (56-open-910K) USB DLC RAD32167835 LGE Internal Use Only - 135 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 137 4. DOWNLOAD LGD722K LGD722K_20140812_LGFLASHv160_Download LGD722K LGE Internal Use Only - 137 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 147 4. DOWNLOAD LGD722K LGD722K_20140812_LGFLASHv160_Download LGD722K_20140812_LGFLASHv160_Download LGD722K LGD722KAT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGD722K LGE Internal Use Only - 147 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 148 4. DOWNLOAD LGD722K LGD722K_20140812_LGFLASHv160_Download LGD722K LGD722KAT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGD722K LGD722K LGE Internal Use Only - 148 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152: Block Diagram
5. BLOCK DIAGRAM 5. BLOCK DIAGRAM LG-D722K Main Block Diagram LGE Internal Use Only - 152 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 153 HALL IC HALL_INT BU52061NVX SENSOR0_I2C_SCL/SDA PROXIMITY PROXIMITY_INT APDS 9130 APDS-9130 PM_KYPD_PWR_N PM8926 USB_D_M / P KEYPAD_SENSE(0:1) FPCB USB Con. LGE Internal Use Only - 153 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 155 SLIMBUS_CLK / I2C_SDA SLIMBUS_DATA GPIO_71 INTR INTR CODEC INT CODEC_INT GPIO 68 GPIO_68 GPIO_72 RESET_N CODEC_RESET_N VDD_VBAT +VPWR LGE Internal Use Only - 155 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 1.3M VT_CAM_MIPI_CLK_N MIPI_CSI1_CLK_N 20pin MIPI_CSI1_CLK_P VT_CAM_MIPI_CLK_P VT_CAM_MIPI_DATA0_N MIPI_CSI1_LN0_N VT_CAM_MIPI_DATA0_P MIPI_CSI1_LN0_P VT_CAM_MCLK GPIO_27 VT_CAM_RESET_N GPIO_28 Flash Flash FLASH_LED_OUT_ VLED_FLASH LGE Internal Use Only - 156 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 157 SLEEP_CLK +1.8V_VREG_L6 VDDIO_1,2 VREG_L6 VDD_LN PM8926 VBAT VDD_CORE Internal BUCK & LDO VOUT 3P3 (Main power source) VIN_LDO LGE Internal Use Only - 157 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 GPIO0 GPIO1 TEST1 VREG_L6 XTAL XTAL2 VREG L22 VREG_L22 TEST2 TEST2 +1.8V_VREG_L6 TEST3 27.12MHz XTAL1 TEST4 TEST10 PVDD LGE Internal Use Only - 158 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 159 WCDMA 1/5 B28 DRx LTE 1/3/7/8/40 DRX_LB1(B28) B20 DRx DRX_LB4(B20) B40 DRx SPDT DRX_MB3(B1/B4) WFR1620 DRX_MB1(B2) PRX_MB1(B2) PRX_MB3(B1) SPDT LGE Internal Use Only - 159 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160: Circuit Diagram
C1159 100p C1160 100p GNSS_IN_P ANT1105 C1161 L1145 100p ( DGMS Guide ) MC-C00002-14 : ESD Protection Circuit - 160 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 161 100p C1229 WFR0_PRX_MB1_IN B2 PRX_WFR For CA L1217 C1235 L1221 4.7n C1234 C1244 100p WTR0_PRX_MB2_IN GSM_HB PRX C1237 - 161 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 162 KR, DCM, VZW GSM_LB 3/4G ATT, EU +VPA0 G1800/G1900 C1327 1.2n FEMID_TX_GSMHB G850/G900 C1326 1.8n FEMID_TX_GSMLB L1320 L1321 0.5p - 162 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 163 +VPWR +VPWR|+VPA_BATT0 SGND PVIN1 PVIN2 +1V8_VREG_L10 PACB U1400 RFFE1_CLK SCLK LM3263 SVDD RFFE1_DATA SDATA PGND L1400 1.5u +VPA0 - 163 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 164 WTR0_XO_IN GND50 DRX_LB_CA_OUT GND51 DRX_MB_CA_IN GND52 DRX_HB_CA_OUT GND53 GND54 GND58 GND55 GND59 GND56 GND60 GND57 GND61 GND62 GND63 - 164 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 165 GND6 PGND L1710 L1707 GND2 GND5 7.5n GND3 GND4 C1714 C1713 USE LPF FOR CA FL1653 B28 TX - 165 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166 VBAT C1757 C1758 4.7n C1759 C1760 WTR0_TX_HB1_OUT RFOUT RFIN GND1 GND4 SDTA GND2 GND5 GND3 GND6 PGND 2655MHz - 166 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 167 RF_IN WTR0_TX_HB2_OUT VCC2 VCC1 PGND C1806 885049 FL1802 PRX B40 C1812 C1813 C1814 ANT_PRX_B40 WTR0_PRX_HB1_IN G1 G2 G3 - 167 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 168 120p 1.5p C5216 L5201 390n NFC_TX_2 FEED 2108614-5 ANT5103 C5299 C5218 NFC_RX_N C-CLIP Height Change (3.0 -> 2.7) - 168 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 169 0 ohms CSFB, CA ET Used 0 ohm SVLTE ET Unused 0 ohm SVLTE ET Used 0 ohm - 169 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 170 FUEL_I2C_SCL R2216 TDMB SPI CS Pull-Up Note 8 Note 8 If you don't use TDMB, delet this box - 170 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 171 GND_339 GND_166 AW30 GND_340 GND_167 AW38 GND_341 GND_168 AW40 GND_342 GND_169 GND_343 GND_170 GND_344 GND_171 AY29 RSVD GND_172 - 171 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 172 2. Over 100uF totally on Vbat line Use the TVS diode of VR=5V, when TVS diode have to use for ESD - 172 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 173 VDD_APC_15 VDD_APC_16 VDD_APC_17 VDD_APC_18 VDD_APC_19 VDD_APC_20 VDD_APC_21 VDD_APC_22 VDD_APC_23 VDD_APC_24 VDD_APC_25 VDD_APC_26 VDD_APC_27 VDD_APC_28 VDD_APC_29 VDD_APC_30 VDD_APC_31 VDD_APC_32 - 173 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 174 NC22 NC113 NC73 NC114 NC24 NC115 NC25 NC117 NC26 NC118 NC27 NC120 NC28 NC121 NC29 NC122 NC30 NC123 - 174 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 175 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 - 175 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 176 VA7400-7403 : Clamping 12.8V / 15pF / 50W MC-C06162-1 : Don't connect positive of tantal to negative charger pump. C7503 - 176 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 177 C8400 R8952 Q8950 R8953 LINE_OUT_IRRC Q8951 C8950 TOL=0.01 TOL=0.01 4.7u VA8950 C8952 0.1u RED LED +VPWR LD8951 HR_LED_SINK - 177 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 178 4.3K ohm : 20% of ISET 820 ohm : 646mA ex) 6% = 1.2K / 200 1000 ohm : 530mA - 178 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 179 (GND_S1, GND_S2, GND_S3, GND_S4) Then input caps should via directly to main ground CHG_PGND C4171,4172 CHANGE CAP AT 1.0 (AUDIABLE NOISE) - 179 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 180 BOTTOM SHIELD CAN CLIP SCREW_HOLE PID1 SC20001 SC20002 SC20003 SC20004 SC20005 SC20006 OJ13000 O J13001 O J13002 ADD AT 1.0 AGAIN - 180 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 186: Pcb Layout
RF trouble shooting FL110062, Diplexer DPX202700DT-4162A1 FL1800, Filter RF trouble shooting 885049 RF trouble shooting LG-D722K_MAIN_EAX65886601_1.0_TOP-1 - 186 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. C5298 Only for training and service purposes C5211 C5210 C5299...
Page 187 PID1 C9202 C6703 C6700 C6702 C6701 L6612 L6611 D10006 CN10001 Micro USB CN10001 No USB, Charging operation LG-D722K_MAIN_EAX65886601_1.0_TOP-2 - 187 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 188 SW1102 Mobile switch, DRX B1, B2, B3, B20 Can’t search signal U5200 PN547, NFC NFC not operate LG-D722K_MAIN_EAX65886601_1.0_BOT-1 - 188 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 189 Antenna Clip, Main RF1149A Can’t search signal No MIC operation No Speaker operation Can’t search signal RF Trouble Shooting LG-D722K_MAIN_EAX65886601_1.0_BOT-2 - 189 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 190: Calibration
>How to connect between CMW500 and RF800A ; It has to connected as below - CMW500 [RF1COM] to RF-800A [left COM], - CMW500 [RF2COM] to RF-800A [Right COM] LGE Internal Use Only - 190 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 192 9. CALIBRATION LGD722K MS695 [TachyonV48] LGD722K 20140812 ALL File Calibration [Tachyon36]LGMS695_20120213_Calibration LGD722K LGE Internal Use Only - 192 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 195 9. CALIBRATION LGD722K LGD722K LGD722K LGD722K LGD722K LGD722K LGD722K LGD722K LGE Internal Use Only - 195 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 197 RAD32167861 RF cable : MS-156C (P/No :MXFJK1WT4000C2) This is for example. You can check “C:\LGE\Tachyon\Model\D722K\Setting Guide” LGE Internal Use Only - 197 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 198 MS-156C MXFJK1WT4000C2 GPIB cable (IEEE-488) (P/No : BJAY0020058) RAD32167861 This is for example. You can check “C:\LGE\Tachyon\Model\D722K\Setting Guide” LGE Internal Use Only - 198 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 206 9. CALIBRATION LGD722K MS695 MS695 LGD722K LGD722K LGD722K LGD722K LGD722K LGD722K LGD722K LGE Internal Use Only - 206 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 209: Hidden Menu
Hidden Menu Start the desired menu: Menu, click Version Info Classified Information representation Hidden Menu Settings Version Info LGE Internal Use Only - 209 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 210 All auto Test - Full (+Power) You can check Test Results When you touch the screen with pushing power key LGE Internal Use Only - 210 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 211 Proximity Sensor : Blind the Proximity sensor Camera Test – Snapshot Click OK button to calibrate A+ function Touch screen to capture LGE Internal Use Only - 211 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 212 Camera is recoding for 4 seconds VT Camera Test Show the VT Camera image Display Check Test Check Black & White Color LGE Internal Use Only - 212 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 213 Check the sound Vibrator Test Check the vibration IrRC Test Touch the ‘Start’ Button and check IrRC function through JIG LGE Internal Use Only - 213 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 214 GPS(RF) test : CNO is some value : OK Bluetooth Scanning is PASS : OK WiFi Scanning is PASS : OK LGE Internal Use Only - 214 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 215 Connect wired headset Check the volume of FM radio Loopback Test Check the Audio loopback Check the Speaker loopback LGE Internal Use Only - 215 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 216 10. HIDDEN MENU Individual item You can test only individual item LGE Internal Use Only - 216 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 217: Disassemble Guide
A front view of D722K. Lift up battery cover with your finger nail. Disassemble battery cover. Disassemble battery. LGE Internal Use Only - 217 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 218 Push Be carefully Rear and antenna spatula with c-clip damage. Finger using a spatula. Disassemble a Rear assembly. LGE Internal Use Only - 218 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 219 Disassemble three connectors. Lift up a assembled PCB From a bar assembly. A view of BAR assembly and PCB assembly. LGE Internal Use Only - 219 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 220 A main Top(left) and a shield can top(right). A view of PCB assembly. A main bottom(left) and a shield can bottom(right). LGE Internal Use Only - 220 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 221: Exploded View & Replacement Part List
Rechargeable Battery,Lithium Ion EAB01 FAB00 Receiver Screw,Machine EAU00 Motor,DC ACQ00 Cover Assembly,Battery EBP00 Camera Module FAB01 Screw,Tapping MDS01 Gasket - 221 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 222 COMPLEX LGD725.AATTTN ZZ:Without Color - MJN000000 Tape MJN69310201 COMPLEX LGD725.AATTTN ZZ:Without Color - MCQ000001 Damper MCQ68108601 COMPLEX LGD722V.AVD2TN ZZ:Without Color - LGE Internal Use Only - 222 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 223 COMPLEX LGD725.AATTZY ZZ:Without Color - MHK000000 Sheet MHK64705401 COMPLEX LGD725.AATTZY ZZ:Without Color - MHK000001 Sheet MHK64688101 COMPLEX LGD725.AATTTN ZZ:Without Color - LGE Internal Use Only - 223 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 224 BH + 1 2.7M 3.5M NI PLT NI GMEY0014301 BH + 1.4mM 3.5mM MSWR NI PLT FAB00 Screw,Machine GMEY0014301 N - KUMGANG SCREW CO., LTD LGE Internal Use Only - 224 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 225 LGP700.AGBRBK ZZ:Without Color S6-2 AGJ000000 Pallet Assembly AGJ73458311 Type_Body+Cap+AL(1200x800)_700EA COMPLEX LGP700.AGBRBK ZZ:Without Color S6- MAY010800 Box,Carton MBEC0004411 2-STD Body(700EA/1200*800) LGE Internal Use Only - 225 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 226 1NFCLG044 SINGLE -5DB 5:1 FPCB Type - NFC EAA030100 EAA63444601 Antenna,Multiple Tape IMTECH MCK004100 Cover,Battery MCK68125823 MOLD PC LGD722.AVD2KG KG:BLACK GOLD - LGE Internal Use Only - 226 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 227 EAJ00 LCD Module EAJ62669901 COLOR 70% 16/9 1000:1 60Hz Inverter N LED 2D - LG Display Co. Ltd. LGE Internal Use Only - 227 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 228 C2417 ECCH0017301 45TO+85C 0603 R/TP - SAMSUNG ELECTRO- Chip C2418 MECHANICS CO., LTD. C4191 C4199 C7201 C9501 C9503 LGE Internal Use Only - 228 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 229 CL05A106MP5NUNC 10uF 20% 10V X5R - Capacitor,Ceramic, C1400 EAE62502901 55TO+85C 1005 R/TP 0.55T max. SAMSUNG Chip C5126 ELECTRO-MECHANICS CO., LTD. LGE Internal Use Only - 229 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 230 0603 R/TP - ROHM. C5137 NFM18PC104R1C3 ESD/EMI 0HZ 0.1uF 0H SMD FL10000 Filter,EMI/Power SFEY0015301 R/TP - MURATA MANUFACTURING CO.,LTD. LGE Internal Use Only - 230 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 231 VA7405 EVLC5S01015 5.5V 0% 15pF 0.6*0.3*0.33 NONE Varistor SEVY0008102 VA9501 SMD R/TP AMOTECH CO., LTD. VA9502 VA9503 VA9504 LGE Internal Use Only - 231 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 232 CL05A225MQ5NSNC 2.2uF 20% 6.3V X5R - C3205 Capacitor,Ceramic, ECCH0000198 55TO+85C 1005 R/TP . SAMSUNG ELECTRO- C5104 Chip MECHANICS CO., LTD. C7200 LGE Internal Use Only - 232 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 233 Resistor,Chip ERHY0009527 ROHM. R5113 R7601 R7602 R10061 MCR01MZP5F3603 360KOHM 1% 1/16W 1005 Resistor,Chip ERHZ0000275 R10065 R/TP - ROHM. LGE Internal Use Only - 233 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 234 Geomagnetic Sensor BOSCH SENSORTEC GMBH MIC6920 Microphone,Conde MOE-C110R38-K1 -38DB 300OHM OMNI 1.5 TO EAB62670801 MIC6921 nser 3.6V 3.76x2.95x1.1 SMD BSE CO., LTD. LGE Internal Use Only - 234 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 235 Capacitor,Ceramic, C0603C0G1H330JT00NN 33pF 5% 50V C0G - C6921 ECCH0009104 Chip 55TO+125C 0603 R/TP - - TDK CORPORATION C6923 LGE Internal Use Only - 235 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 236 C9101 RC0603J821C 820OHM 5% 1/20W 0603 R/TP - R1103 Resistor,Chip EBC62236101 SAMSUNG ELECTRO-MECHANICS CO., LTD. L1103 LG HK0603 82NJ-T 82NH 5% - 70mA - - 3.37OHM Inductor,Multilayer, L1119 EAP61866701 1GHZ 4 SHIELD 0 0.6X0.3X0.3MM R/TP TAIYO Chip L1152 YUDEN CO.,LTD LQP03TG1N8C02D 1.8NH 0.2NH - 500mA - -...
Page 237 Chip COOPERATION MCR01MZP5J472 4.7KOHM 5% 1/16W 1005 R/TP - R7200 Resistor,Chip ERHY0000254 ROHM. LG HK 0603 2N2S-T 2.2NH 0.3NH - 360mA - - Inductor,Multilayer, L1134 EAP62227301 0.19OHM 8.8GHZ 4 SHIELD - 0.6X0.3X0.3MM R/TP Chip TAIYO YUDEN CO.,LTD LQP03TG6N8J02D 6.8NH 5% - 200mA - - 1.15OHM...
Page 238 251M1002107MR12A168 100uF 20% 10V 50UA - Capacitor,TA,Confo C9100 EAE62287901 55TO+125C 0.6OHM 3.2X1.6X1.1MM NONE SMD rmal R/TP 1.2T max. MATSUO ELECTRIC CO.,LTD LGE Internal Use Only - 238 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 239 LQG15HS1N0S02D 1NH 0.3NH - 300mA - - Inductor,Multilayer, L10070 ELCH0003831 0.07OHM 10GHZ 8 SHIELD NONE 1.0X0.5X0.5MM Chip R/TP MURATA MANUFACTURING CO.,LTD. LG HK 0603 1N0S-T 1NH 0.3NH - 470mA - - C5101 Inductor,Multilayer, EAP62226901 0.11OHM 10GHZ 4 SHIELD - 0.6X0.3X0.3MM R/TP C5139 Chip TAIYO YUDEN CO.,LTD...
Page 240 INNOCHIPS TECHNOLOGY MCH153CN103KK 10nF 10% 16V X7R -55TO+125C Capacitor,Ceramic, C6611 ECCH0000155 1005 R/TP - ROHM Semiconductor KOREA Chip CORPORATION LGE Internal Use Only - 240 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 241 300MHZ 10 SHIELD 0 1.6X0.8X0.8MM R/TP TDK L5201 Chip KOREA COOPERATION MCR006YZPF2002 20KOHM 1% 1/20W 0603 R/TP R6105 Resistor,Chip ERHY0009554 - ROHM. LGE Internal Use Only - 241 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 242 AWL9580S 30DBM 27DB 30% 85A 165A 20DB Module, FEM(Front U5102 EAT62373401 20DBM 0DBM 16P 2.5x2.5x0.4MM 5GHz Wi-Fi End Module) FEM(SPDT+LNA+PA) ANADIGICS,INC. LG HK 0603 8N2J-T 8.2NH 5% - 230mA - - Inductor,Multilayer, L1150 EAP62227701 0.45OHM 3.4GHZ 5 SHIELD - 0.6X0.3X0.3MM R/TP Chip TAIYO YUDEN CO.,LTD Q22FA1280013000 37.4MHZ 10PPM 12F , SMD...
Page 243 LQP03TG3N9C02D 3.9NH 0.2NH - 350mA - - Inductor,Multilayer, L1116 EAP62226101 0.35OHM 6GHZ 13 SHIELD - 0.6X0.3X0.3MM R/TP Chip L1227 MURATA MANUFACTURING CO.,LTD. LGE Internal Use Only - 243 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 244 Capacitor,Ceramic, C0603X7R1H331KT00NN 330pF 10% 50V X7R - C5142 ECCH0009109 Chip 55TO+125C 0603 R/TP - - TDK CORPORATION LG HK0603 7N5J-T 7.5NH 5% - 240mA - - 0.41OHM Inductor,Multilayer, L1311 EAP61866801 3.6GHZ 5 SHIELD 0 0.6X0.3X0.3MM R/TP TAIYO Chip YUDEN CO.,LTD GRM0335C1ER50C 0.5pF 0.25PF 25V X7R -...
Page 245 12. EXPLODED VIEW & REPLACEMENT PART LIST Level Location no Description Specification Remark C1323 LG HK 0603 1N2S-T 1.2NH 0.3NH - 450mA - - Inductor,Multilayer, L1206 EAP62227001 0.12OHM 10GHZ 4 SHIELD - 0.6X0.3X0.3MM R/TP Chip L1753 TAIYO YUDEN CO.,LTD IR26-71C/L447/S63/TR8 CLEAR 1.15~1.6V 65mA...
Page 246 D5202 0DBM 0DB 0% 0A 0A 0DB 0DBM 0DBM 26P Module, FEM(Front U1100 EAT62293101 4.0x3.0x1.0MM Div FEM for WTR1625 End Module) CA(B1/2/3/5/7/8/20) EPCOS PTE LTD. LGE Internal Use Only - 246 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 247 C5102 Inductor,Multilayer, EAP62226001 0.15OHM 6GHZ 13 SHIELD - 0.6X0.3X0.3MM R/TP C5116 Chip MURATA MANUFACTURING CO.,LTD. LG HK 0603 8N2J-T 8.2NH 5% - 230mA - - Inductor,Multilayer, L1150 EAP62227701 0.45OHM 3.4GHZ 5 SHIELD - 0.6X0.3X0.3MM R/TP Chip TAIYO YUDEN CO.,LTD MCR01MZP5F1000 100OHM 1% 1/16W 1005 R/TP...
Page 248 C1757 Inductor,Multilayer, EAP61866901 0.15OHM 6GHZ 14 SHIELD 0 0.6X0.3X0.3MM R/TP L1754 Chip MURATA MANUFACTURING CO.,LTD. LG HK 0603 15NJ-T 15NH 5% - 180mA - - 0.71OHM Inductor,Multilayer, L1214 EAP62246301 5HZ 2.3G SHIELD - 0.6X0.3X0.3MM R/TP TAIYO Chip YUDEN CO.,LTD 16-219ASURC/S1230/TR8(LM) RED 2.35V 25mA...
Page 249 GRM1555C1HR50B_H 0.5pF 0.1PF 50V C0G - Capacitor(High 55TO+125C 1005 R/TP 0.5+/-0.05 L:1.0+-0.05 L10062 Frequency),Cerami EAE62945301 W:0.5+-0.05 T:0.5+-0.05 MURATA c,Chip MANUFACTURING CO.,LTD. LGE Internal Use Only - 249 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 250 SN74AUP1T97DSFR 0~3.6V 0.000004 LEVEL SHIFTER SON-6 R/TP 6P Configurable Gate Logic U8950 IC,Gate EAN62415501 TEXAS INSTRUMENTS KOREA LTD, HONGKONG BRANCH. LGE Internal Use Only - 250 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 251 EMD2 R/TP 2P 1 ROHM Semiconductor KOREA CORPORATION Filter,Separator,Swi RF1635 0 0 32dBm TDD-LTE Tx/Rx RF MICRO FL1102 EAM62634001 DEVICES INC LGE Internal Use Only - 251 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 252 MCH155A510JK 51pF 5% 50V NP0 -55TO+125C C5210 Capacitor,Ceramic, ECCH0000123 1005 R/TP - - ROHM Semiconductor KOREA C5213 Chip CORPORATION LGE Internal Use Only - 252 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 253 LFL18829MTCRD627 LPF 829MHZ 698 to 960 MHz FL1301 Filter,Ceramic EAM62691501 SMD R/TP 6P MURATA MANUFACTURING CO.,LTD. EBR071500 Assembly,Main,Ins EBR79432801 LGD722V.AVD2TN 1.0 Main LGE Internal Use Only - 253 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 254 Windows Windows KK - - Software, SAD010100 SAD34764701 Windows KK - PCSuiteV - - EUROPE - - Application LGE Internal Use Only - 254 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 255 2460mAh, LGC, WW, Bartype LG Chem,LTD. LG0108 USB USB 1.0M 4 BLACK UL N ningbo EAD010000 Cable,Assembly EAD62377902 broad telecommunication co.,ltd LGE Internal Use Only - 255 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...

LG D722K Service Manual

Introduction

Performance

Trouble Shooting

Download

Block Diagram

Circuit Diagram

Bga Pin Map

Pcb Layout

Calibration

Hidden Menu

Disassemble Guide

Exploded View & Replacement Part List

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Summary of Contents for LG D722K

Table of Contents