全景图 TOP面 BOTTOM面 3 2 1 London-荣耀畅玩7C全网通 TOP故障维修指引V1.0 返回目录 上电时序图 信号脚 量测点对应序 号 二极体 电压 实物点测图 KPD_PWR_N or PON_1 (KYPD_PWR_N) MBG_EN (MSM_BBCLK1_EN) VREG_S4 (VREG_S4_2P05) GPIO4 VREG_S7 (VREG_S7_0P915) VREG_S2 (VREG_S2_0P8625) VREG_S5_S6 (VREG_S5_S6_0P8625 ) MPP1 (VDD_PX_BIAS_MPP) VREG_L5 (VREG_L5_1P8) VREG_XOVL20_1 (VREG_XO) VREG_L7 (VREG_L7_1P8) VREG_S3 (VREG_S3_1P225) VREF_LPDDR (VREF_LPDDR3) VREG_L3 (VREG_L3_0P925) SLEEP_CLK1 (SLEEP_CLK) VREG_L13 (VREG_L13_3P075) VREG_L8 (VREG_L8_2P9) VREG_L12 (VREG_L12_SDC) VREG_L11 (VREG_L11_SDC) BBCLK1 (BB_CLK) PON_RESET_N (PM_PON_RESET_N) PS_HOLD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 TP3035 1.47V 1.77V 1 / / / C709 0.45V 2.05V / / / L509 0.31V 0.86V C516 0.26V 0.42V C519 0.35V 0.85V C1207 0.54V 1.2V C640 0.39V 1.79V C208 0.51V 1.7V C641 0.49V 1.79V C522 0.29V 1.2V C803 0.45V 1.2V 1.77V 1 2 0.86V 5 0.89V 0.85V 15 7 0.42V 6 U201 0.9V 14 1.79V 9 1.79V 0.77V 11 20 10 1.7V 2.95V 2.95V 2.05V 3 18 17 19 16 2.9V 3.0V 1.2V 8 1.2V 12 C621 0.35V 0.9V 1.2V 13 R209 0.52V 0.89V C643 0.60V 3.0V 3 C622 0.45V 2.9V C616 0.65V 2.95V C624 0.70V 2.95V R202 0.78V 0.77V C807 0.43V 1.79V TP802 0.44V 1.79V U801 1.79V 21 1.79V 22 返回目录 2018/11/21 第1页，共1页