LG KE990 Service Manual - Page 160
CAM MIC, Headset Hook Switch, BACK_UP BATTERY
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7. CIRCUIT DIAGRAM 1 A B C D 2 3 4 5 6 7 8 5MP CAMERA POWER +VPWR (VDD_SD) CAM_VDD_SD_1.8V 150mA MMP_CAM_PWR_EN C901 1u U900 R1114D181D 1 3 VDD VOUT 4 6 NC CE GND1 GND2 2 5 C902 1u CAM_VDD_AF_2.7V 150mA +VPWR C903 1u C904 1u U901 R1114D271D 1 6 VDD CE_OR_NC 2 GND1 5 GND2 3 VOUT NC 4 MMP_CAM_PWR_EN E F R904 EAR_MIC_P R905 10K 100K NCS2200SQ2T2G U902 2 VIN+ 3 GND OUT VCC 1 VIN- 4 5 HOOK_SENSE_N 1M R906 5.1K VREG_MSMP_2.7V R907 C905 0.1u Headset Hook Switch G H 1 2 3 4 5 6 7 8 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes - 161 - 9 10 11 12 A B BAT900 C V_BACK_UP C900 1u BACK_UP BATTERY D MIC900 1 2 SPOB-413S42-RC3310BC CAM_MIC+ PLW0501H-LF INSTPAR ZD900 E CAM MIC F G H 9 10 11 12 LGE Internal Use Only