SAMSUNG Proprietary-Contents may change without noticeSGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams2-12This Document can not be used without Samsung's authorizationD17D4BFNCLCD CONNECTOR6KEYPADE2ANCNCNCNCEIRDAB53CCNCF743 8A52816100NFC24012120KEYPAD8R2093.39KEYPADZD202123 4567R21647KV212V211R21747KGND1ININ 23ININ 48 OUTOUT76 OUTOUT5F202910PFC244R2031002C25187 OUTOUT65 OUT5KEYPAD12F203GND 9IN 12ININ 34INOUT47PFC24847PFC247R2063.35TXD36 VCC47PFC250LED2177 GNDLEDA12 LEDC4 RXDSD12D2013KEYPAD220PFC242LED21212R212KEYPADF4CN2022 AC3G1G4221 ININ23 ININ48OUTOUT 76OUTOUT 5R201F2019GNDLED2020R22212100KLED2017KEYPADR221 100K22V21012R211KEYPAD4VCCD0R223C203VCCDR224 0VCCB6.3V10UFV209LED20347PFC249R214KEYPAD61268100KR233VCCDLED2070R225C24110PFVBATC252ERR2 54 GNDSD123 SD21 VIN 8VOUT17VOUT2U203ERR1 6R226 47C253NCNCL20182C255100NFVBATR202LED209LED206CN205-11IN12 ININ34 INOUT 87OUTOUT 65OUTF204GND91KEYPAD12V206LED211V216V207V208C239100NFC2371UF8 89 9LED204505151 52525353 545455 556 67 74343 44444545 46 464747 484849 495 55036 3637 37 38 3839394 440 404141 4242293 330 303131 32 3233 33 34 3435 3521 22 2223 23 24 242525 26 2627 27 28 282914 1415 15 16 161717 18 1819 192 220 2021CN2011110 1011 11 12 1213 13V205VBATV215F209R2305 1R232VBAT756851R229R204C238LED20851330NFKEYPAD812R231C20210UF6.3VV2148C24347PFZD201123 4567210UFC254F3KEYPAD12KEYPAD213.339R207 R2081003GNDOUT 2VCC1R228U2025R220 100KGND1ININ 23ININ 48 OUTOUT7OUT6OUTKEY_BL2F2089XCSVSYNCHSYNCCM_CLKKEY_BLKEY_COL(0)UP_SCLKTK_SDOUP_SDITK_CSLCD_AD(0)LCD_AD(2)LCD_AD(4)LCD_AD(6)RSTSCLPWR_ONPEN_IRQTK_SDOUP_SDIUP_SCLKKEY_ROW(1)KEY_ROW(0)KEY_ROW(2)KEY_COL(1)KEY_COL(2)KEY_ROW(1)KEY_ROW(4)KEY_ROW(2)KEY_ROW(3)KEY_ROW(0)KEY_COL(3 )KEY_COL(2 )KEY_COL(0 )FKEY_ENSVC_GREENVOSCSDASPK1PLCD_AD(3)LCD_AD(5)LCD_AD(7)V_MOTVIB_ENV_LEDV_MOTKEY_ROW(5)CAM_D(4)DIM_ENCAM_D(3)CAM_D(5)P_CLKCAM_D(7)VREFERBACKLIGHT_ENCAM_D(1)CAM_D(6)LCD_AD(1)SVC_REDSVC_BLUEKEY_COL(1 )KEY_COL(0:3)KEY_ROW(0:5)FLIP_SNSIRDA_ENIRDA_RXIRDA_TXSPK1NHVDDCAM_D(0)CAM_D(2)HREFER