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Block Diagram: X455LD Repair Guide

1. This document provides a block diagram and power flow sequence for an X455LD laptop motherboard repair guide. 2. Key power rails and signals are labeled on the diagram including +3VA, +5VSUS, PM_PWROK, AC_IN_OC#, and CORE_PWRGD. 3. The power on sequence flows from AC power input through signals like ME_AC_PRESENT and PM_PWROK to eventually power gate the core with the CORE_PWRGD signal.

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mohamad yahya
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88 views5 pages

Block Diagram: X455LD Repair Guide

1. This document provides a block diagram and power flow sequence for an X455LD laptop motherboard repair guide. 2. Key power rails and signals are labeled on the diagram including +3VA, +5VSUS, PM_PWROK, AC_IN_OC#, and CORE_PWRGD. 3. The power on sequence flows from AC power input through signals like ME_AC_PRESENT and PM_PWROK to eventually power gate the core with the CORE_PWRGD signal.

Uploaded by

mohamad yahya
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Aug/11/ 2014

X455LD Repair Guide John_jin


GTSD
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
BLOCK DIAGRAM
POWER FLOW
POWER ON SEQUENCE
Signal Measure Point-Bottom

18 D2505 ME_AC_PRESENT_PCH 585 14 D5802 +5VSUS_PWRGD 783

17 D2505 ME_AC_PRESENT 592 13 D5804 +3VSUS_PERGD 579


5 Q2101 +3VA_EC 496
33330O_PSON# 641
39 PL8801P_CHG_LX_30 518
34.R2510 PM_PWROK 587
7 PD8200 +3VSUS_ON 544

15 SL2502 ME_SUSPWRDNACK 548 11 PL8101 +5VSUS0 523


26.PQ9109 +1.05VS_PWRGD 548

31 SL2501 PM_PWROK_PCH 588 3 PSL100 +3VA O 484


12 PSL8100 +3VADSW0 490
16 R2315 PM_RSMRST# 588

4. PC8124 +5VA 0 554


36 PL8001 +VCCIN 51
2.PR8808 AC_IN_OC# 582
6 D3201 EC_RST 571 37PL8502 +NVDD 59

33D0601 CORE_PWRGD 544

35 C4630 BUG_PLT_RST 460


38 PSL8301 +1.35VSUS 519
Signal Measure Point-Top

29. D5851 ALL_SYSTEM_POWRG 548

30 R3046 PM_PWROK 588 9 PQ9107 +12VUS 1535

20. R3056 PM_PWRBTN#

540
25 .PQ9111 SUSC_EC # 592
24.PQ9107 SUSB_EC# 581
8.R3020 +5VSUS_ON 590 VA 490
23. R3050 PM_SUSB# 539
32 PR8048 VCCIN-EN 329

22.SL3005 PM_SUSC# 539 28.PQ8400 +1.5S_PWRGD 550

21.S3007 PM_SLP_A# 1025

1. PJP8501 AC_BAT_SYS 513

10 .R1604 +3VSUS_ON 381

27.PQ8306 +1.35V_PWRGD 601

19. D5601 PWR_SW#_R 591

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