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4. 10.2 Receiver troubleshooting Receiver control signals are generated by APQ8064(U21001) 4.10.2 Receiver troubleshooting LGE Internal Use Only and Power is supplied byWCD9310(U5001). - 126 - 4. TROUBLE SHOOTING Receiver control signals are generated by APQ8064(U21001) and Power is supplied byWCD9310(U5001). Start Check the receiver Sound(loop back mode) START Check the receiver Is Sound receiver sound (loop back mode) OK? NO Yes Is receiver sound OK? Change the receiver. Is No receiver sound OK? Change the receiver. Yes Is receiver sound OK? NO No Change the WCD9310(U5001). Change the WCD9310(U5001) Is receiver sound Yes Is receiver sound OK? OK? Receiver NO No Change the Main PCB Change The main PCB END END END YES YES YES END END END Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes
4.10. 3 Main MIC troubleshooting 4.10. 3 Main Main MIC MIC signal troubleshooting is generate by MEMS MIC on Lower FPCB Main MIC signal is generate by MEMS MIC on Lower FPCB LGE Internal Use Only START Start Check the Check MIC the signal MIC signal by Loop by Loop back teat test or or Camcorder camcorder Recording recording Main MIC NO Check the MIC Check hole the to MIC make hole to make clear the the voice voice signal path Is signal voice path. signal Is ok? voice signal OK? No NO Check the low FPCB Check And check the the Low voice signal FPCB. Is And voice check signal ok? the voice signal. Is voice signal OK? No NO Change the WCD9310(U5001) Is voice signal ok? Change the WCD9310(U5001). Is the Novoice signal OK? Change The main PCB NO Change the Main PCB - 127 - Yes Yes Yes YES YES YES 4. TROUBLE SHOOTING END END END WCD9310(U5001) END END END Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes
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Internal Use Only Service Manual LG
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1. INTRODUCTION 1.1 Purpose LGE Int
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2. PERFORMANCE 2.1 Product Name LG-
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Display LGE Internal Use Only LGE I
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4) Battery Type Li-ion Battery Pack
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2) 2) WCDMA transmitter specificati
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4) 4) HSDPA HSDPA transmitter speci
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6) 6) WLAN 802.11b transceiver spec
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8) 8) WLAN 802.11n transceiver spec
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Rx Min input Sensitivity Rx Max inp
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Rx Min input Sensitivity Rx Max inp
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Out of Band Spurious Emission LGE I
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3.CIC_AND SERVICE CENTER 3.1 CIC FA
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No FAQ Q&A 4 Q The GPS location isn
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No FAQ Q&A 10 Q How do you install
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No FAQ Q&A 13 Q A Request for devel
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No FAQ Q&A 15 Q How do you Reset an
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No FAQ Q&A 18 Q How do you use HDMI
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No FAQ Q&A 22 Q Battery consumption
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No FAQ Q&A 25 Q A LGE Internal Use
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4. TROUBLE SHOOTING 4.1 RF Componen
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RF component LGE Internal Use Only
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LGE Internal Use Only WCDMA B1, B5
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4.3 Checking TCXO Block LGE Interna
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LGE Internal Use Only Check TP1 (VR
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ANT_SW_SEL0 ANT_SW_SEL1 ANT_SW_SEL2
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4.5 Checking WCDMA Block LGE Intern
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SW11000 G2 G1 ANT Vendor=I-PEX Part
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testing, Max power output is needed
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UMTS_HB_RF_IN GSM_HB_RF_IN HB_EN VM
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WCDMA B6 LGE Internal Use Only TP1
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UMTS_HB_RF_IN GSM_HB_RF_IN TX_ANT_L
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- PAM control signal PA_ON0 GSMLB (
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LGE Internal Use Only Set the phone
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SW11000 G2 G1 ANT Vendor=I-PEX Part
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testing, Max power output is needed
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_L2 TX C11059 DNI L11039 100p C1105
Page 75 and 76: SW11000 G2 G1 ANT Vendor=I-PEX Part
Page 77 and 78: testing, Max power output is needed
Page 79 and 80: C11036 0.5p 3.3n L11026 LGE Interna
Page 83 and 84: - PAM control signal PA_ON3_U850 (C
Page 85 and 86: 4.5.4. Checking RF Rx Level WCDMA B
Page 87 and 88: LGE Internal Use Only START No Chec
Page 91 and 92: WCDMA B2 LGE Internal Use Only - 91
Page 97 and 98: WCDMA B5 LGE Internal Use Only - 97
Page 101 and 102: LGE Internal Use Only 2,3 - 101 - 1
Page 105 and 106: 4.6.4 Checking RF Rx Block SW11000
Page 107 and 108: 4.6.5 Checking RF DRX Level [UMTS B
Page 115 and 116: 4.7 GPS/WIFI/BT Module 4.7.1 GPS Mo
Page 117 and 118: 4.8 GPS/WIFI/BT SIGNAL PATH 4.8.1 G
Page 119 and 120: ANT1205 ANTENNA ANT1204 CONTACT FL1
Page 121 and 122: 4.9.2 Checking WIFI,BT LGE Internal
Page 123 and 124: VSW_S8_1 VSW_S8_2 V10 VREG_S8 U11 D
Page 125: 4.10.1 Speaker troubleshooting Spea
Page 129 and 130: 4.10. 5 Ear-MIC troubleshooting Ear
Page 131 and 132: Disable to using headset MIC or hea
Page 133 and 134: GPIO_0/MDP_VSYNC_P/VFE_CAM_TIMER_6B
Page 135 and 136: 4.12 Main LCD trouble Main LCD cont
Page 137 and 138: LGE Internal Use Only TP2 - 137 - 4
Page 139 and 140: 4.13 Touch trouble Touch control si
Page 141 and 142: 4.14 Vibrator Troubleshooting Check
Page 143 and 144: Mainboard bottom Mainboard bottom L
Page 145 and 146: Rev.B VREG_LVS4_1P8 C8002 10n VREG_
Page 147 and 148: LGE Internal Use Only Change the Gy
Page 149 and 150: 4.17 Proximity Sensor on/off troubl
Page 151 and 152: 4.18 Light Sensor on/off trouble Li
Page 153 and 154: 4.19 Pressure Sensor troubleshootin
Page 155 and 156: LGE Internal Use Only TP1 TP2 - 155
Page 157 and 158: MCE62492901 ANTENNA ANT1100 FEED MC
Page 159 and 160: 4.21.1 Checking VBATT Settings NFC
Page 161 and 162: 4.21.3 Checking VDDIO, REG_PU, VDD_
Page 163 and 164: 4.21.5 Checking NFC Antenna (Batter
Page 165 and 166: CN7002 1 2 LGE Internal Use Only C7
Page 167 and 168: LGE Internal Use Only X23002 Q13FC1
Page 169 and 170: c. Charging current flow check poin
Page 171 and 172: R7025 10K 1 GND 2 /SR1 10 RST2 9 NC
Page 173 and 174: LGE Internal Use Only - 173 - 5. DO
Page 175 and 176: LGE Internal Use Only - 175 - 5. DO
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LGE Internal Use Only - 177 - 5. DO
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6.BLOCK DIAGRAM [LG-E960] APQ8064 F
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LGE Internal Use Only PA_EN_L7 - 19
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[M] [LG-E960] APQ8064 APQ8064 Block
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[LG-E960] APQ8064 Block Diagram ; N
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[M] APQ8064 Block Diagram : Slimpor
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[M] APQ8064 Block Diagram : TOUCH S
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[LG-E960] [M] Wireless Charging Blo
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[LG-E960] Power Block Diagram Rev.A
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[M] E960 NFC Block diagram [LG-E960
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ANT4 UMTS B1,2,4,8(MRD) LTE B1,2,3,
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LGE Internal Use Only MDM9215M data
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PMIC_PM8018 LGE Internal Use Only M
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- 213 - Copyright © 2012 LG Electr
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LGE Internal Use Only +VPWR C24001
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LGE Internal Use Only HPH_REF EJ_MI
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SC7001 SC7002 LGE Internal Use Only
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LGE Internal Use Only VREG_S4_1P8 V
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MCE62492901 ANTENNA ANT1100 FEED MC
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U21001 - APQ8064 top (Top View) U21
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U13001 - MDM9215M (Top View) U13001
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U24001 - PM8821 (Top View) U24001 -
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U5001 - WCD9310 (Top View) U5001 -
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U9001 - BT/WiFi (Top View) U9001 -
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U6004 - Slimport (Top View) U6004 -
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U4002 : EMMC Memory - no booting /
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LGE Internal Use Only E960 MS695 [T
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LGE Internal Use Only LGE960 - 241
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LGE Internal Use Only E960 MS695 LG
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LGE Internal Use Only - 245 - 10. C
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LGE Internal Use Only 5.3V 5.0V - 2
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LGE Internal Use Only - 255 - LG-E9
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LGE Internal Use Only E960 MS695 -
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2. Disassemble Battery Cover LGE In
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4. Disassemble BATTERY & PCB LGE In
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6. Disassemble MAIN PCB LGE Interna
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12. EXPLODED VIEW & REPLACEMENT PAR
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EXPLODED VIEW (TOTAL) LGE Internal
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12.3 Accessory LGE Internal Use Onl
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