Level 3 RepairDistribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.Confidential and proprietary-the contents in this service guide subject to change without prior notice.8-108-3-4. Microphone PartCheck IRLED + MIC FPCBAssy for any damage(crack,tear in FPCB,etc) Replace the IRLED + MIC FPCB AssyYesYesNoCheck microphone functionin voice call speaker modeor in voice recording modeCheck component status ofL505, L506(crack,short,etc) Resolder or replace L505, L506ENDNoYESReplace U504ZD502L505R528C508 C509 C507L506C510MIC_N_CONMIC_P_CON MAIN_MIC_PMAIN_MIC_NC513MAIN_MICBIAS_2.8VC533R520C514VPH_PWRC515 C516C523C517TP_CODEC_REEST_NC518TP_SLIMBUS_DATAEAR_MICBIAS_LDO_2.8VL509C52255GND_SPKDRVNC56NC576BUCK_VOUT17GND_BUCK8RESET_N9DMIC0_CLK48MIC_BIAS249SPKR_DRVP5GND50SPKR_DRVM51MIC_BIAS352MIC5_INP53MIC2_INM54MIC_BIAS140 GND_SPKDRV41 MIC4_INM42MIC4_INP43MIC3_INM44MIC1_INP45VDD_SPKDRV46MIC5_INM47 MIC2_INP33MODE34LDO_HI_CAP35VDD_VBAT36 LINE_OUT137MBHC_HSDET38MIC3_INP39 MIC1_INM4INTR26EAROP27VDD_TX_RX28GND29MCLK3VDD_BUCK30SLIMBUS_DATA31EAROM32LINE_OUT219VDD_DIG2NCP_C1P20 SLIMBUS_CLK21HPH_R22CCOMP23GND_CFILT24DMIC0_DATA25GND11NCP_VNEG12BUCK_VOUT213BUCK_VSW14DMIC1_DATA15DMIC1_CLK16HPH_L17 HPH_REF18GNDU5041NCP_C1M10VDD_IOC532TP_CODEC_MAD_INT_NC531TP_SLIMBUS_CLKSPKDRV_GNDMAIN_MIC_PEAR_VPS_LEAR_VPS_RSPK_RSPK_LEAROUT_FBEAR_MIC_NEAR_MIC_PMAIN_MIC_NCODEC_BUCK_GNDCODEC_BUCK_GNDSLIMBUS_CLKSLIMBUS_DATACODEC_BUCK_GNDSPKDRV_GNDCODEC_BUCK_GNDCODEC_RESET_NCODEC_INT_N