Schematic Diagrams
KBC-ITE IT8518E B - 35
B.Sch
e
m
a
tic D
iag
rams
KBC-ITE IT8518E
0 V
R X
3 G _D E T #
T P _ D A T A
2 8
LP C _ A D 2
1 8 , 28
S E R I R Q
1 8 , 2 8
LP C _ A D 0
1 8 , 28
K B - S I 2
K B - S O7
K B - S O1
S M D _ B A T
4 2
S M C _ B A T
4 2
LP C _ A D 1
1 8 , 28
K B - S I 5
K B - S O8
K B - S O2
K B - S I 0
T P _ C L K
2 8
LP C _ A D 3
1 8 , 28
L P C _F R A ME #
18 , 2 8
S M D _ C P U _ T H E R M
1 9
S M D _ V GA _ T H E R M
1 6
S M C _ V GA _ T H E R M
1 6
S M C _ C P U _ T H E R M
1 9
J _K B 2
* 8 52 0 1 - 24 0 5 1
2 4
2 3
2 2
1 4
1 2
1 1
2 1
8
2 0
1 9
6
5
1 8
4
1 7
1 0
9
7
3
2
1
1 6
1 5
1 3
K B - S I 4
K B - S I 7
K B - S O9
K B - S I 1
E C _V C C
K B - S O5
K B - S O4
K B - S O6
K B - S O1 4
K B - S O1 5
K B - S O3
K B - S O1 2
K B - S O1 3
K B - S O0
P C L K _ K B C
K B - S O1 0
K B - S I 6
K B - S O1 1
K B - S I 3
FOR W270HU
FOR W250HPQ
S W I #
20
K B C _R S T #
2 3
8 0C L K
2 7
3 G_ E N
2 7
C C D _ E N
2 8
d GP U _ P W R _ E N #
3 7
d GP U _ R S T #
1 2
A C _P R E S E N T
2 0 , 2 2
D D _ ON
3 1 , 35 , 3 6
P W R _B T N #
2 0
ME _ W E
1 8
R S MR S T#
20
H S P I _ C E #
1 8
H S P I _ MS I
18
P M _P C H _ P W R OK
2 0
3 I N 1
2 7
S M I #
2 3
S C I #
2 3
H _P R OC H O T# _ E C
3
R 29 2
*0 _ 04
R 28 4
4 3_ 1 % _0 4
R 3 38
* 1 0M _0 4
J _K B 1
8 5 2 01 -2 4 05 1
2 4
2 3
2 2
1 4
1 2
1 1
2 1
8
2 0
1 9
6
5
1 8
4
1 7
1 0
9
7
3
2
1
1 6
1 5
1 3
C 50 0
1 u _ 6. 3 V _ Y 5 V _ 0 4
R 24 5
* 10 K _ 0 4
R 26 5
4 7 _ 04
X 10 *3 2 . 7 68 K H z
1
4
3
2
C 4 9 7
*1 5 p _5 0 V _ N P O _0 4
C 4 43
0 . 1 u _ 16 V _ Y 5 V _ 0 4
L3 6
H C B 1 0 05 K F -1 2 1 T2 0
C 3 68
0 . 1 u _1 6 V _ Y 5 V _ 0 4
S MC _ C P U _ T H E R M_ R
C 5 05
* 0 . 1u _ 1 6V _Y 5V _0 4
R 27 0
1 5 _ 1% _ 0 4
R 3 4 0
* 10 _ 0 4
C 4 9 8
0 . 1 u_ 1 6 V _Y 5 V _0 4
K/B MATRIX
FLASH
LPC
SMBUS
PS/2
PWM
UART
DAC
CLOCK
IT8518
CIR
ADC
WAKE UP
PWM/COUNTER
LPC/WAKE UP
EXT GPIO
GP INTERRUPT
WAKE UP
GPIO
U 1 7
I T8 5 1 8E
W R S T #
14
L P C C L K
13
L A D 0
10
L A D 1
9
L A D 2
8
L A D 3
7
L F R A ME #
6
( P D )LP C P D #/ W U I 6 / GP E 6
1 7
S E R I R Q
5
E C S MI # / G P D 4 ( P U )
15
E C S C I # / G P D 3 ( P U )
23
G A 2 0/ G P B 5
1 26
K B R S T #/ GP B 6 ( P U )
4
K S I 0/ S TB #
5 8
K S I 1 / A F D #
5 9
K S I 2 / I N I T#
6 0
K S I 3 / S L I N #
6 1
K S I 4
6 2
K S I 5
6 3
K S I 6
6 4
K S I 7
6 5
K S O0 / P D 0
3 6
K S O1 / P D 1
3 7
K S O2 / P D 2
3 8
K S O3 / P D 3
3 9
K S O4 / P D 4
4 0
K S O5 / P D 5
4 1
K S O6 / P D 6
4 2
K S O7 / P D 7
4 3
K S O8 / A C K #
4 4
K S O9 / B U S Y
4 5
K S O1 0 / P E
4 6
K S O 1 1/ E R R #
5 1
K S O 12 / S L C T
5 2
K S O 13
5 3
K S O 14
5 4
K S O 15
5 5
VC
C
11
VS
T
BY
26
VS
T
BY
50
VS
T
BY
92
VS
T
BY
11
4
VS
T
BY
12
7
VS
T
BY
12
1
VBA
T
3
AV
C
C
74
P S 2 C LK 0 / G P F 0 ( P U )
85
P S 2 D A T0 / G P F 1 ( P U )
86
P S 2 C LK 1 / G P F 2 ( P U )
87
( P D ) TM R I 0 / W U I 2/ G P C 4
1 2 0
( P D ) TM R I 1 / W U I 3/ G P C 6
1 2 4
L P C R S T # / W U I 4 / G P D 2 ( P U )
22
( P D ) W U I 5 / GP E 5
3 5
P W R S W / G P E 4 ( P U )
1 25
R I 1# / W U I 0 / GP D 0( P U )
18
R I 2# / W U I 1 / GP D 1( P U )
21
( P D )R I N G# / P W R F A I L #/ L P C R S T # / GP B 7
1 1 2
T X D / G P B 1 ( P U )
1 09
R XD / GP B 0( P U )
1 08
( P D ) C T X / GP B 2
1 2 3
P S 2 D A T1 / G P F 3 ( P U )
88
P S 2 C LK 2 / G P F 4 ( P U )
89
P S 2 D A T2 / G P F 5 ( P U )
90
( P D ) T A C H 0/ G P D 6
4 7
( P D ) T A C H 1/ G P D 7
4 8
P W M 0 / GP A 0 ( P U )
24
P W M 1 / GP A 1 ( P U )
25
P W M 2 / GP A 2 ( P U )
28
P W M 3 / GP A 3 ( P U )
29
P W M 4 / GP A 4 ( P U )
30
P W M 5 / GP A 5 ( P U )
31
P W M 6 / GP A 6 ( P U )
32
P W M 7 / GP A 7 ( P U )
34
A D C 0 / GP I 0
66
A D C 1 / GP I 1
67
A D C 2 / GP I 2
68
A D C 3 / GP I 3
69
A D C 4 / GP I 4
70
A D C 5 / GP I 5
71
A D C 6 / GP I 6
72
A D C 7 / GP I 7
73
VSS
1
VSS
12
VSS
27
VSS
49
VSS
122
VSS
11
3
AVS
S
75
C K 3 2 K E
2
C K 32 K
1 2 8
D A C 3 / GP J3
79
D A C 2 / GP J2
78
G P J 1
77
G P J 0
76
( P D ) E GC S # / GP E 2
8 3
( P D ) E GC L K / GP E 3
8 4
( P D ) E GA D / GP E 1
8 2
G I N T / GP D 5 ( P U )
33
L 8 0L L A T / GP E 7( P U )
20
VSS
91
D A C 5 / GP J5
81
D A C 4 / GP J4
80
P W U R E Q # / GP C 7( P U )
16
( P D )C R X/ G P C 0
1 1 9
( P D ) K S O 1 6/ G P C 3
5 6
( P D ) K S O 1 7/ G P C 5
5 7
( P D ) G P H 0 / I D 0
9 3
( P D ) G P H 1 / I D 1
9 4
( P D ) G P H 2 / I D 2
9 5
( P D ) G P H 3 / I D 3
9 6
( P D ) G P H 4 / I D 4
9 7
( P D ) G P H 5 / I D 5
9 8
( P D ) G P H 6 / I D 6
9 9
( P D ) G P G1 / I D 7
1 0 7
S M C L K 0 / GP B 3
1 10
S M D A T 0 / GP B 4
1 11
S M C L K 1 / GP C 1
1 15
S M D A T 1 / GP C 2
1 16
S M C L K 2 / GP F 6( P U )
1 17
S M D A T 2 / GP F 7( P U )
1 18
F LF R A M E #/ G P G2
1 0 0
F LA D 0 / S C E #
1 0 1
F L A D 1 / S I
1 0 2
F LA D 2 / S O
1 0 3
F L A D 3/ G P G6
1 0 4
F L C LK / S C K
1 0 5
( P D )F L R S T # / W U I 7 / G P G0 / T M
1 0 6
( P D ) L 8 0 H L A T / GP E 0
1 9
N C 3
S H O R T
L 22
H C B 1 00 5 K F -1 2 1T 2 0
C 4 9 9
0 . 1 u_ 1 6 V _Y 5 V _0 4
R 24 4
* 10 K _ 0 4
R 23 5
1 0 K _ 04
C 3 6 7
*0 . 1 u _1 6 V _ Y 5 V _ 04
C 38 3
1u _ 6 . 3 V _Y 5 V _0 4
R 27 3
4 7 _ 04
C 3 8 1
0 . 1 u _1 6 V _ Y 5 V _ 0 4
C 5 01
0.
1u
_1
6
V
_Y
5V
_
04
6-03-08518-0P2
R 3 5 1
* 0 _0 4
N C 2
S H OR T
C 3 8 2
*0 . 1 u _1 6 V _ Y 5 V _ 0 4
C 50 6
* 10 p _ 50 V _ N P O_ 04
R 34 8
1 0 0 K _0 4
R 3 4 1
*1 0 m il _ s ho rt _ 0 4
K B -S O1
K B -S O8
K B -S O4
K B -S I 0
R 2 57
4 . 7K _ 0 4
R 23 6
1 0 K _ 04
K B -S O7
K B -S O1 0
K B -S O6
C 3 8 6
0 . 1 u_ 1 6 V _Y 5 V _0 4
K B -S O1 4
C 4 5 5
0 . 1 u_ 1 6 V _Y 5 V _0 4
K B -S O0
K B -S I 3
K B -S I 6
U 1 6
P C T 2 5 V F 0 32 B
C E #
1
S O
2
W P #
3
V S S
4
S I
5
S C K
6
H OL D #
7
V D D
8
H S P I _ MS O
1 8
R 28 9
*0 _ 04
R 3 3 9
* 0 _0 4
R 26 1
1 5 _ 1% _ 0 4
K B -S I 1
K B -S I 7
R 2 42
1 K _0 4
K B -S O1 1
K B -S I 2
K B -S I 5
K B -S O1 2
K B -S O5
K B -S O9
K B -S I 4
K B -S O1 3
K B -S O2
K B -S O3
Board? ?
V D D 3
V D D 3
V D D 3
K B C _ A V D D
V D D 3
V D D 3
V D D 3
3 . 3 V S
S MC _ C P U _ T H E R M_ R
C 4 96
* 1 5p _ 5 0V _ N P O_ 0 4
S MD _ C P U _ T H E R M_ R
K B C _ S P I _ S O_ R
K B C _ S P I _ S C L K _ R
K B C _ H O L D #
S P I _ V D D _1
? ? ?
32 Mb it
K B C _ F L A S H
B R I GH T N E S S
1 1
K B C _ S P I _ S C L K
K B C _ S P I _ S O
K B C _ S P I _ C E # _ R
K B C _ S P I _ S I _ R
K B C _ S P I _ S I
L E D _ B A T _ F U L L
2 8
L E D _ N U M #
3 1
L E D _ P W R
2 8
K B C _ S P I _ C E #
L E D _S C R O LL #
3 1
L E D _ B A T _ C H G
2 8
LE D _ C A P #
31
6-04-02532-490
6-04-25320-490
K B C _ MU TE #
3 3
G A 2 0
2 3
L E D _ A C I N
2 8
K B C _ B E E P
33
2'rd
3 G_ P OW E R _ E N
2 7
W LA N _ E N
2 7
C P U _ F A N
2 8
B K L_ E N
1 1
B T _ E N
2 7, 3 1
P C LK _ K B C _ R
B A T _V OL T
P C L K _ K B C
K B C _ W R E S E T #
LC D _ B R I GH TN E S S
S MD _B A T
12/06 ? ? ? ?
S MC _B A T
C C D _ D E T #
B A T _D E T
K B C _ A GN D
K B C _ A G N D
EC MODULE CHOOSE (FOR DIFFERENCE K/B TYPE)
VER:C
P M E #
2 2, 30
C C D _ D E T #
KBC_SPI_*_R = 0.1"~0.5"
K B C _ S P I _ C E #
C H G_ R S T
4 2
R 2 46
10 _ 04
3 G _D E T #
2 7
L C D _ B R I G H T N E S S
K B C _S P I _C E # _R
K B C _ H O L D #
K B C _S P I _S I _R
K B C _ F L A S H
K B C _S P I _S C L K _ R
B A T _ V OL T
U 1 5
*M X2 5 L 32 0 5 D M 2I - 1 2 G
A C A - S P I - 0 04 -T 0 3
C E #
1
S O
2
W P #
3
V S S
4
S I
5
S C K
6
H OL D #
7
V D D
8
S P I _ V D D _1
K B C _S P I _S O _ R
R 3 4 9
* 1 0m i l _s h o rt _0 4
A L L _S Y S _ P W R GD
1 1, 2 0 , 3 9
V D D 3
1 1, 18 , 2 7 , 30 , 3 5 , 36 , 3 7 , 4 1, 4 2
L I D _S W #
1 1, 2 8
S U S B #
6 , 2 0, 2 9 , 3 5
S U S C #
2 0 , 3 8
3 . 3 V S
3 , 9, 10 , 1 1 , 12 , 1 8 , 19 , 2 0 , 2 1, 2 2 , 2 3, 2 4 , 2 5, 27 , 2 8 , 30 , 3 1 , 32 , 3 3 , 3 5, 3 9
T H E R M_ V O L T
2
C C D _ D E T #
2 8
B T _D E T #
27
B A T_ V O LT
4 2
B A T _ D E T
4 2
H S P I _ S C L K
1 8
C P U _ F A N S E N
28
W L A N _D E T #
2 7
I C P P E #
2 3
N B _E N A V D D
11 , 2 1
S U S _P W R _ A C K
2 0
K B C _ S P I _ S I
K B C _ S P I _ S O
MO D E L _ I D
C K 3 2 K
C K 3 2 K E
K B C _ S P I _ S C LK
K B -S O1 5
W L A N _ LE D #
2 7, 3 1
C 4 70
10 u _ 6. 3 V _ X 5R _ 06
MO D E L _ I D
S MD _C P U _ T H E R M_ R
T O TA L _ C U R
4 2
Co-lay SPI ROM
1
T OT A L _ C U R
M OD EL_ ID
3 .3 V
V 1. 0
R1 63 10 K/ R 17 1 X
V ER .
VO LT AGE
J_KB1
R1 63 X /R 17 1 10 K
S M C _ C P U _ TH E R M _ R
S MD _V GA _ T H E R M
S MC _V GA _ T H E R M
C 37 0
*1 u _6 . 3 V _ Y 5 V _ 0 4
24
12 /8 ? ? ? B OM ? ? ? ?
6-04-25032-491
E C _ V S S
RX
B U F _ P L T _ R S T #
2 2 , 27 , 2 9 , 3 0
A C _I N #
4 2
P W R _ S W #
35
P C L K _ K B C
2 2
C R I T_ T E MP _ R E P #
23
H _ P E C I
3 , 2 3
K B C _W R E S E T #
Sheet 34 of 49
KBC-ITE IT8518E
Summary of Contents for W251HNQ
Page 1: ...W251HPQ W251HPQ C W251HNQ W251HNQ C W255HP W255HN W258HPQ W258HPQ C W258HNQ ...
Page 2: ......
Page 24: ...Introduction 1 12 1 Introduction ...
Page 44: ...A 4 Top W255HP W255HN A Part Lists Top W255HP W255HN 灰色 非耐落 Figure A 2 Top W255HP W255HN ...
Page 46: ...A 6 Bottom A Part Lists Bottom Figure A 4 Bottom ...
Page 47: ...SATA BLU RAY COMBO A 7 A Part Lists SATA BLU RAY COMBO 非耐落 志精 Figure A 5 SATA BLU RAY COMBO ...
Page 48: ...A 8 DVD DUAL A Part Lists DVD DUAL Figure A 6 DVD DUAL 非耐落 志精 ...
Page 49: ...LCD A 9 A Part Lists LCD 頭厚 非耐落 中性 Figure A 7 LCD ...
Page 50: ...A 10 A Part Lists ...
Page 103: ...www s manuals com ...