X540LJ Rrpair Guide.pdf

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John_jin
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X540LJ Repair Guide
Nov/04/ 2015
BLOCK DIAGRAM
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POWER FLOW
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POWER ON SEQUENCE
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AC POWER ON SEQUENCE
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Signal Measure Point-Bottom
24.SL5803
P_1.5VS_PWRGD
468
39
PL8801 P_CHG_LX_30
522
1.
29.PSL8004
VCCIN_EN
284
PJP8501 AC_BAT_SYS
480
36
PSL8200 +1.05VSUSO
325
38
PL8502 +NVVDD
12
30.D0601
CORE _PWRGD
554
34
PL8001 VCCIN
51
19.R2508
PM_SUSB#
530
20.Q7702
DGPU_PWR_EN#
575
10.SL2505
SUSWARN#
561
37
PL8301 +1.35VO
151
33.C5306
BUF_PLT_RST#
454
35
PL8101 +5VO
519
3.PL8100
+3VADSWO
463
9.D5805
3VSUS_PWRGD
654
5.SL3002
+3VA_EC
483
4.D5801
3VA_DSW_PWRGD
638
17.SL3018
PM_SLP_A#
538
18.SL3004
PM_SUSC#
522
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