K401LB Repair Guide.pdf

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John_jin
GTSD
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K401LB Repair Guide
Apr/20/ 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
26
U7002 BUF_PLT_RST
523
27PL8502
+NVDD
18
28
PSL8301 +1.35VO
126
5
D3201 EC_RST#
480
23D0601
CORE_PWRGD
597
30
PSL8100 +3V0
514
31
PSL8101 +5V0
529
24.R0806
H_CPUPWRGD
392
29
PL8001 +VCCIN
64
25.D2520
PM_SYSPWROK_PCH
852
12
D2502 PM_RSMRST#_PCH
773
20.PQ9107
SUSB_EC#
590
19
.PQ9111
SUSC_EC #
629
VA
490
11
R2502 SUSACK_R#
547
32
PSL8202 +1.05VSUSO
383
22
D2501 PM_PWROK_PCH
588
14
SL2502 ME_SUSPWRDNACK
559
2
PSL8100 +3VA O
486
10
D2505 ME_AC_PRESENT_PCH
603
21.
D5851 ALL_SYSTEM_POWRG
550
7
D5804 +3VSUS_PERGD
595
33330O_PSON#
641
33
PL8801 P_CHG_LX_30
548
17.R2519
SLP_LAN#
610
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