X555LD Repair Guide Aug/15/ 2014 Changcai_zhou GTSD BLOCK DIAGRAM POWER FLOW POWER ON SEQUENCE POWER ON SEQUENCE （AC Mode） POWER ON SEQUENCE （DC Mode） Signal Measure Point-Bottom PL8502 +NVVDD 14 23.R0823 H_CPUPWRGD 351 PCE8301AC_BAT_SYS 486 PD8200 +3VSUS_ON 520 5.PSL8108 +5VSUS_ON 665 20-1,PL8003 VCCIN 30 PSL8200 +1.05VSUSO 331 PSL8301 +1.35V 130 PSL8100 +3VADSW0 478 10 R2510 PCH_SUSACK# 516 PSL8101 +5VSUS0 552 D2503 DPWROK_R 569 PL8801 P_CHG_LX_30 520 16.PQ9105 SUSC_EC # 586 VA 490 26.SL2504 PM_SYSPWROK 570 17.PD8400 SUSB_EC# 528 D2505 ME_AC_PRESENT 697 16 PD8300 +1.35V_ON 596 Signal Measure Point-Top 27.U7002 BUF_PLT_RST# 476 25.Q0601 CORE_PWRGD 567 24 PSL8001 VR_SVID_DATA 149 14.RN3044 PM_SUSC# 531 PQ8006 AC_IN_OC# 610 15 RN3044 PM_SUSB# 536 12.R3041 PM_PWRBTN# 527 24 PSL8003 VR_SVID_CLK 140 R3009 PCH_SLPSUS# 562 D3204 +3VA_EC 484 D5801 +3VSUS_PERGD 842 33330O_PSON# 641 D5801 +5VSUS_PWRGD 837 13.T3038 SLP_LAN# 572 R3071 ME_SUSPWRDNACK_EC 575 20.D2501 ALL_SYS_PWRGD 566 D3204 EC_RST 669 21.D2501 PM_PWROK_PCH 572 Q7713 PM_RSMRST# 563 19.R2530 PM_PWROK 571 11 R3037 PWR_SW# 692