X555DG Repair Guide July/28/ 2015 John_jin GTSD BLOCK DIAGRAM POWER FLOW POWER ON SEQUENCE Signal Measure Point-Bottom PJP8300 AC_BAT_SYS 455 22.D3701 PM_PWROK_EC 597 35 PL8502 +VDDC_GPU 38 27 PSL8300 +1.35V 115 25 Q2202 PLT_RST# 412 28 PL8600 VDDCR_VGFX 24 26.R0617 APU_RST# 518 36 PL8600 VDDCR_CPU 124 29 PL8001 VDDCR_NB 15 24.R0715 EXT_SCI# 447 10 R0708 PM_RSMRST# 795 PSL8101 +3VA 480 24.R0715 EXT_SCI# 447 14.PQ9108 SUSC_EC # 743 VA 490 25 C0702 LPC_RST# 415 PR8120 VSUS_PERGD 546 R1967 +3VA_EC 486 33330O_PSON# 641 16.PQ9106 SUSB_EC# 512 20,VT10553 A20GATE 442 PSL8100 +5VA 495 30 PSL8200 +1.05VSUS 197 31 PSL8401 +1.8VSUSO 273 34 PL8801 P_CHG_LX_30 509 33 PSL8101 +5VO 520 32 PSL8100 +3VADSWO 383 Signal Measure Point-Top SW6201 PWR_SW# 687 D2201 +5VSUS_PWRGD 692 14 Q2309 1.35V_ON 583 17.D2202 ALL_SYS_PWRGD 694 13.SL1923 PM_SUSC# 419 18 Q23098 CPU_VRON 555 19.R2214 CORE_PWRGD 587 11.R1974 PWR_LED 737 15 SL1936 PM_SUSB# 420 D1906 PM_RSMRST# _EC592 12.R1940 PM_PWRBTN# 448 PSL8107 +3VSUS_ON 510 4.SL1925 +5VSUS_ON 742 23.D1907 PM_PWROK 417 21 RN3305 RC_IN# 440 ... 33330O_PSON# 6 41 16.PQ 9 10 6 SUSB_EC# 512 20, VT 105 53 A20GATE 442 PSL 8 10 0 +5VA 495 30 PSL8 200 +1. 05 VSUS 19 7 31 PSL84 01 +1. 8VSUSO 273 34 PL88 01 P_CHG_LX_ 30 509 33 PSL 8 10 1 +5VO 5 20 32 PSL 8 10 0 +3VADSWO... VDDCR_NB 15 24.R0 715 EXT_SCI# 447 10 R0 708 PM_RSMRST# 795 PSL 8 10 1 +3VA 4 80 24.R0 715 EXT_SCI# 447 14 .PQ 9 10 8 SUSC_EC # 743 VA 4 90 25 C0 702 LPC_RST# 415 PR 812 0 VSUS_PERGD 546 R1967 +3VA_EC 486 33330O_PSON#... PJP8 300 AC_BAT_SYS 455 22.D37 01 PM_PWROK_EC 597 35 PL8 502 +VDDC_GPU 38 27 PSL8 300 +1. 35V 11 5 25 Q2 202 PLT_RST# 412 28 PL8 600 VDDCR_VGFX 24 26.R0 617 APU_RST# 518 36 PL8 600 VDDCR_CPU 12 4 29 PL 800 1