X550MJ Repair Guide BLOCK DIAGRAM Mar/23/2015 John_jin GTSD POWER FLOW POWER ON SEQUENCE POWER ON SEQUENCE(AC Mode) POWER ON SEQUENCE(DC Mode) Signal Measure Point-Bottom 24 PL8801 P_CHG_LX_30 544 26 PL8600 +1.0VSUSO 416 30 PL8502 NVDD 17 PD8300 +1.5V_ON 588 22 VT521 DDR_CORE_PWROK 620 28 PL8101 +5VO 540 25 PL8301 +1.35VO 231 29PL8102 +3VO 74 19 D5805 DDR_PWRGD 649 PSL8100 +5VA 560 18 PQ9108 SUSB_EC# 600 D3204 EC_RST# 699 R3012 ME_AC_PRESENT_SOC 516 20.SL5802 ALL_SYS_PWRGD 593 PSL8101 +3VA 504 23 R3379 BUF_ PLT_RST# 503 Signal Measure Point-Top 1.PJP8801 AC_BAT_SYS 481 27.PQ8000 VCORE 12 C6202 PWR_SW# 1198 21.R2124 PM_PWROK 779 12 R2122 PM_RSMRST# 626 11 D2102 SUS_PWRGD 605 13 R2106 ME_SUSPWRDNACK 529 16 R0410 SUSC_EC # 745 VA 490 SL3005 +3VA_EC 491 14.RN3006 PM_SUSC# 620 15 RN3006 PM_SUSB# 779 6.R3053 +5VSUS_ON 760 10 R3051 +3VSUS_ON 787 R3041 PM_PWRBTN# 669