TP550LD Repair Guide Sep/03/ 2014 John_jin GTSD - BLOCK DIAGRAM POWER FLOW POWER ON SEQUENCE Signal Measure Point-Bottom 8.VT931+5VSUS_ON 664 13.PL8100 +3VADSWO 486 12 PL8200 +1.05VSUS 332 PSL8100 +5VAO 548 11 PL8101 +5VSUSO 524 PR8100 +12VSUSO 1563 36.U7002 BUF_PLT_RST# 544 39 PL8301 +1.35VO 94 38 PL8501 VGA_VCORE 50 26.RN3007 SUSC_EC# 599 37 PL8003 VCCIN 159 25.RN3007 SUSB_EC# 492 PR8006 AC_IN_OC# 645 16.R2519 ME_SUSPWRDNACK_R 554 6.Q3204 EC_RST# 672 31.C6421 PM_PWROK 560 40 PL8801 P_CHG_LX_30 515 28.D5802 +1.35V_PWRGD 619 14.D5802 +3VSUS_PWRGD 727 29.R5802P_ +1.5VS_PWRGD 500 10 R5804 +3VSUSO 358 Signal Measure Point-Top 3.PC8103 +3VAO 491 27.PQ9107 +1.05VS_PWRGD 501 VT624 +3VSUS_ON 524 PJP8501 AC_BAT_SYS 476 34.VT1060 CORE _PWRGD 565 21.R3019 PM_PWRBTN# 527 5.C3003 +3VA_EC 481 32.D2501 PM_PWROK_PCH 631 23.VT982 PM_SUSC# 531 22.VT929 PM_SLP_A# 582 30.D2501 ALL_SYSTEM_PWRGD 576 24.R2535 PM_SUSB# 545 33.VT1026 VCCIN_EN 335 19.D2505 ME_AC_PRESENT_PCH 566 20.D6802 PWR_SW# 692 17.R2542 PM_RSMRST# 559 18.D2505 ME_AC_PRESENT 689 15.D2502 VSUS_PWRGD 611