Jun/26/ 2016 X441UX Repair Guide BLOCK DIAGRAM John_jin GTSD POWER FLOW POWER ON SEQUENCE Signal Measure Point-Bottom 26 PL8901 P_CHG_LX_30 526 31.PL8101 VCCGT 13 33.P9101 +NVDD 17 32.PL8301 +1.0VSUSO 122 20.SPL8005 ALL_SYS_PWRGD 581 17.VT767 PM_SUSB#_18 546 24 T2505 H_CPUPWRGD_R 425 30.PL8102 +VCCCORE 14 16.SL2515 PM_SUSC#_18 547 15 SL2518 PM_PWRBTN#_18 551 18 PD8810 SUSC_EC # 608 27 PL9300 +1.35VO 219 PSL8704 +3VAO 486 D3201 +3VA_EC 484 D3201 EC_RST# 615 28 PL8702 +5VSUSO 466 19 SL3023 SUSB_EC# 615 27 PL8601 +1.2VO 139 R3011 +5VSUS_ON PC8705 +5VAO 553 29 PL8701 +3VADSWO 385 538 Signal Measure Point-Top 1.PJP9101 AC_BAT_SYS 450 PD8300 VSUS_ON 532 14 R2514 PCH_SUSACK# 550 11 SL2512 SUSWARN 575 25 R2518 PLT_RST# 505 12 D2502 PM_RSMRST#_PCH 612 23 D2502 PM_SYSPWROK_PCH 555 13 D2501 ME_PRESENT_PCH 587 R3041 PM_SLP_SUS# D2501 +3VA_DSW_PWRGD 601 22 D2501 PM_PWROK_PCH 665 554 21 R3058 IMVP8_PWRGD 584 10 D5804 3SUS_PWRGD 583 15 SL3105 PWR_SW# 614 D5803 DPWROK_EC 611 R3054 +3VADSW_ON 539 18 PD8603 1.2V_ON 577 ... PL89 01 P_CHG_LX_ 30 526 31. PL 8 10 1 VCCGT 13 33.P 9 10 1 +NVDD 17 32.PL83 01 +1. 0VSUSO 12 2 20. SPL 800 5 ALL_SYS_PWRGD 5 81 17.VT767 PM_SUSB# _18 546 24 T2 505 H_CPUPWRGD_R 425 30. PL 8 10 2 +VCCCORE 14 16 .SL2 515 ... PM_SUSC# _18 547 15 SL2 518 PM_PWRBTN# _18 5 51 18 PD8 8 10 SUSC_EC # 608 27 PL9 300 +1. 35VO 219 PSL8 704 +3VAO 486 D32 01 +3VA_EC 484 D32 01 EC_RST# 615 28 PL8 702 +5VSUSO 466 19 SL 302 3 SUSB_EC# 615 27 PL86 01 . .. 27 PL86 01 +1. 2VO 13 9 R3 01 1 +5VSUS_ON PC8 705 +5VAO 553 29 PL87 01 +3VADSWO 385 538 Signal Measure Point-Top 1. PJP 9 10 1 AC_BAT_SYS 4 50 PD8 300 VSUS_ON 532 14 R2 514 PCH_SUSACK# 5 50 11 SL2 512 SUSWARN