Schematic Diagrams
KBC-ITE IT8518 B - 21
B.Sch
e
m
a
tic D
iag
rams
KBC-ITE IT8518
Sheet 20 of 43
KBC-ITE IT8518
W 24 D0 3
Va lue m od ify 3 /23
K B C _ W R E S E T#
3/1 6
Mo dify 3 /17
W 27 D0 1
6- 22- 32 R7 6- 0BG
6- 22- 32 R7 6- 0B2
W 27 D0 1
M odify 3 /16
E C _ V C C
W L A N _ L E D #
W 27 D0 1
60 K / 10K
C K 3 2 K
C o- lay ou t X2 , X 3
C K 3 2 K E
20K / 1 0K
Mod ify 3/1 7
10K / 2 0K
0. 47 V
Del ? ? VGA 3/8
1. 1V
2. 2V
R 8 0 8
2. 2 K _ 0 4
F or cha rge r 3 /17
( B E E P )
F or c har ge r 3 /17
S MD _ B A T
S MC _ B A T
R 5 06
1 0 K _ 04
R 5 07
* 10 K _ 0 4
.
L 1 18
H C B 1 00 5 K F -1 2 1T 2 0
R 5 2 8
1 K _ 0 4
R 5 0 2
1 00 K _ 0 4
C 85 6
0 . 1 u_ 1 6 V _Y 5 V _0 4
C 7 4 2
1 0u _ 1 0V _Y 5 V _0 8
R 5 3 2
4 . 7 K _ 04
C 7 54
*1 2p _ 5 0V _N P O_ 0 4
R 50 1
*1 5 m il _ s ho rt _ 0 6
J _ K B 1
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
C 7 5 3
0 . 1u _ 1 6V _ Y 5V _ 0 4
R 5 3 3
* 0_ 0 4
R 5 30
4 7 _ 04
R 5 3 5
* 10 m i l_ s ho rt _ 0 4
C 7 51
1 u_ 6 . 3 V _X 5 R _ 0 4
R 5 0 3
2 . 49 K _ 1 % _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 3 8
I T 8 5 18 E V E R : C
W R S T#
1 4
L P C C L K
1 3
L A D 0
1 0
L A D 1
9
L A D 2
8
L A D 3
7
L F R A M E #
6
( P D )L P C P D # / W U I 6/ G P E 6
1 7
S E R I R Q
5
E C S MI # / GP D 4 ( P U )
1 5
E C S C I # / GP D 3 ( P U )
2 3
G A 20 / G P B 5
12 6
K B R S T #/ G P B 6 ( P U )
4
K S I 0 / S T B #
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 O 0/ P D 0
3 6
K S O 1/ P D 1
3 7
K S O 2/ P D 2
3 8
K S O 3/ P D 3
3 9
K S O 4/ P D 4
4 0
K S O 5/ P D 5
4 1
K S O 6/ P D 6
4 2
K S O 7/ P D 7
4 3
K S O 8/ A C K #
4 4
K S O 9 / B U S Y
4 5
K S O1 0 / P E
4 6
K S O 11 / E R R #
5 1
K S O1 2 / S L C T
5 2
K S O1 3
5 3
K S O1 4
5 4
K S O1 5
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
V
BAT
3
AV
C
C
74
P S 2 C L K 0 / G P F 0( P U )
8 5
P S 2 D A T0 / G P F 1( P U )
8 6
P S 2 C L K 1 / G P F 2( P U )
8 7
( P D )T MR I 0 / W U I 2 / G P C 4
1 20
( P D )T MR I 1 / W U I 3 / G P C 6
1 24
L P C R S T #/ W U I 4 / GP D 2 ( P U )
2 2
( P D )W U I 5/ G P E 5
3 5
P W R S W / GP E 4( P U )
12 5
R I 1# / W U I 0/ GP D 0 ( P U )
1 8
R I 2# / W U I 1/ GP D 1 ( P U )
2 1
( P D )R I N G # / P W R F A I L# / L P C R S T #/ G P B 7
1 12
T X D / GP B 1( P U )
10 9
R XD / GP B 0 ( P U )
10 8
( P D )C T X/ G P B 2
1 23
P S 2 D A T1 / G P F 3( P U )
8 8
P S 2 C L K 2 / G P F 4( P U )
8 9
P S 2 D A T2 / G P F 5( P U )
9 0
( P D )TA C H 0 / G P D 6
4 7
( P D )TA C H 1 / G P D 7
4 8
P W M 0/ GP A 0 ( P U )
2 4
P W M 1/ GP A 1 ( P U )
2 5
P W M 2/ GP A 2 ( P U )
2 8
P W M 3/ GP A 3 ( P U )
2 9
P W M 4/ GP A 4 ( P U )
3 0
P W M 5/ GP A 5 ( P U )
3 1
P W M 6/ GP A 6 ( P U )
3 2
P W M 7/ GP A 7 ( P U )
3 4
A D C 0 / GP I 0
6 6
A D C 1 / GP I 1
6 7
A D C 2 / GP I 2
6 8
A D C 3 / GP I 3
6 9
A D C 4 / GP I 4
7 0
A D C 5 / GP I 5
7 1
A D C 6 / GP I 6
7 2
A D C 7 / GP I 7
7 3
VSS
1
VSS
12
VSS
27
VSS
49
VSS
12
2
VSS
11
3
AVS
S
75
C K 3 2 K E
2
C K 3 2 K
1 28
D A C 3 / GP J 3
7 9
D A C 2 / GP J 2
7 8
G P J1
7 7
G P J0
7 6
( P D )E GC S #/ G P E 2
8 3
( P D )E GC LK / G P E 3
8 4
( P D )E G A D / G P E 1
8 2
G I N T / GP D 5 ( P U )
3 3
L 8 0L L A T / GP E 7 ( P U )
2 0
VSS
91
D A C 5 / GP J 5
8 1
D A C 4 / GP J 4
8 0
P W U R E Q #/ GP C 7 ( P U )
1 6
( P D )C R X / G P C 0
1 19
( P D )K S O 16 / G P C 3
5 6
( P D )K S O 17 / G P C 5
5 7
( P D )GP H 0 / I D 0
9 3
( P D )GP H 1 / I D 1
9 4
( P D )GP H 2 / I D 2
9 5
( P D )GP H 3 / I D 3
9 6
( P D )GP H 4 / I D 4
9 7
( P D )GP H 5 / I D 5
9 8
( P D )GP H 6 / I D 6
9 9
( P D )GP G 1 / I D 7
1 07
S M C L K 0 / GP B 3
11 0
S M D A T 0 / GP B 4
11 1
S M C L K 1 / GP C 1
11 5
S M D A T 1 / GP C 2
11 6
S M C L K 2 / GP F 6 ( P U )
11 7
S M D A T 2 / GP F 7 ( P U )
11 8
F L F R A ME # / G P G2
1 00
F L A D 0/ S C E #
1 01
F LA D 1 / S I
1 02
F L A D 2 / S O
1 03
F L A D 3 / G P G6
1 04
F L C L K / S C K
1 05
( P D )F LR S T #/ W U I 7 / GP G 0 / TM
1 06
( P D )L 8 0H L A T/ G P E 0
1 9
C 7 5 2
0 . 1 u_ 1 6 V _ Y 5 V _ 04
R 5 05
1 0 K _ 04
X1 1
*1 T JS 1 2 5 D J 4 A 42 0 P _ 3 2. 7 6 8 K H z
1
4
3
2
C 7 45
* 0 . 1u _ 1 6V _ Y 5V _0 4
C 7 4 8
0 . 1u _ 1 6V _ Y 5V _0 4
LA N _ P C I E _ W A K E # 1 6
C 7 43
0 . 1 u _1 6 V _ Y 5 V _ 0 4
C 7 4 9
1 u_ 6 . 3 V _X 5 R _ 0 4
C 7 46
* 0 . 1u _ 1 6V _ Y 5V _ 0 4
R 5 29
1 5 _ 1% _ 0 4
C 7 4 1
*0 . 1 u_ 1 6 V _Y 5 V _0 4
R 5 3 1
*1 0 M_ 0 4
.
L 11 7
H C B 1 00 5 K F -1 2 1T 2 0
X 1 0
*M C -1 4 6 _3 2 . 7 68 K H z
1
4
3
2
C 7 4 4
*0 . 1 u_ 1 6 V _Y 5 V _ 04
R 7 87
1K _ 0 4
C 7 5 6
*0 . 1 u_ 1 6 V _Y 5 V _0 4
N C 2
S H OR T
R 7 8 5
*0 _0 4
L C D _ B R I G H T N E S S
J _ K B 2
*8 5 20 1 -2 40 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
R 5 26
4 7 _ 04
R 8 0 9
2. 2 K _ 0 4
R 5 23
*0 _ 0 4
U 3 7
*A T 2 5F 5 1 2 A N
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
R 5 27
1 5 _ 1% _ 0 4
C 7 55
* 12 p _ 50 V _ N P O_ 0 4
R 7 08
0 _0 4
R 5 0 4
7 . 5K _ 1 % _ 04
U 3 9
MX 2 5L 1 60 6 E M 2I -1 2 G
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
R 7 1 5
* 0 _0 4
R 7 8 6
0_ 0 4
C 74 7
0 . 1 u_ 1 6 V _Y 5 V _ 04
R 7 09
0 _0 4
R 7 1 0
0 _ 0 4
C 8 5 5
0. 1u _ 1 6V _ Y 5V _ 0 4
V D D 3
V D D 3
3 . 3 V S
V D D 3
V D D 3
K B C _ A GN D
K B C _ A V D D
V D D 3
K B C _A GN D
3. 3V S
V D D 3
V D D 3
V D D 3
W E B _ W W W #
2 2
S U S C #
8 , 2 3 , 25
V D D 3
H S P I _ C E #
9
3 I N 1
1 7
S M D _ C P U _T H E R M
3, 8 , 9
H S P I _ MS O 9
H S P I _ S C LK 9
H S P I _ MS I 9
C C D _ E N
1 5
P W R _ S W #
2 3
B T _E N
1 7 , 2 1
J _ 80 D E B U G 1
* 85 2 05 -0 5 0 01
1
2
3
4
5
LE D _ C A P #
2 1
P W R _ B T N #
8
L I D _S W #
8 , 1 3, 2 2
S MD _ B A T
29
K B C _ B E E P
18
C C D _ D E T #
1 5
L E D _ P W R
2 1
B K L _E N
1 3
LP C _ A D 0
7 , 1 1
LP C _ A D 3
7 , 1 1
LP C _ A D 2
7 , 1 1
3/1 6
3 G_ P O W E R 1 5
L P C _F R A ME #
7 , 11
LP C _ A D 1
7 , 1 1
V C O R E _ ON
2 8
S U S B #
8 , 1 1 , 12 , 1 9 , 23
B U F _P LT _ R S T #
7 , 1 1, 1 6 , 1 7, 1 9
W L A N _ D E T #
1 7
R S M R S T _ GA T E # 8
W L A N _ L E D #
1 7, 2 1
W E B _ E MA I L #
2 2
D D _ ON
22 , 2 3 , 2 4
C P U _F A N S E N
22
B A T _ D E T
2 9
K B C _ MU TE #
1 8
C P U _ F A N
2 2
80PORT
R50 3 / R5 04
0 V
L E D _S C R O LL #
21
E C _R S T #
7 , 1 2
A P _ K E Y #
2 2
L E D _ B A T _C H G
2 1
EC MODULE CHOOSE (FOR DIFFERENCE K/B TYPE)
3 G_ E N
1 5
A C _I N #
8 , 2 2, 2 9
S W I #
8
B T _ D E T #
17 , 2 1
1 0K / X
MO DE L_I D
L E D _ A C I N
2 1
E C _ S C I #
8
3 G_ D E T #
1 5
MO D E L _ I D
Valu e m o dify 3/2 3
3. 3V
W 24 D0 3
W240BU
T H E R M_ V OL T
2
8 0C LK
1 7
W LA N _ E N
1 7 , 2 1
V ER.
V OL TA GE
S M C _ C P U _T H E R M
3, 8 , 9
L E D _N U M #
2 1
W251BUQ
T P _ D A T A
2 2
L E D _ B A T _ F U L L
21
T P _ C L K
2 2
T O TA L _ C U R
2 9
L P C _ C L K 0
7 , 8
E C _ S MI #
8 , 1 9
K B C _ R S T #
8
S E R I R Q
7 , 1 1
GA 2 0
8
S MC _ B A T
29
A LL _ S Y S _P W R GD
1 1, 1 3
B R I G H T N E S S
1 2 , 1 3
B A T _ V OL T
2 9
B A T _ V OL T
W270BUQ(O2)
R 5 1 4
*1 0 K _ 04
1. 65 V
C K 32 K E
C K 32 K
6- 22 -3 2R 76- 0B 4
2. 5V
W251BAQ
8 0 C L K
3 I N 1
W 27 D0 1
R 8 29
*0 _ 0 4
CD 3 /8
CD 3 /8
K B C _ S P I _ S I
K B C _ S P I _ S O _R
K B C _ S P I _ S O
K B C _ H O LD #
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 C LK _ R
K B C _ S P I _ C E #
K B C _ S P I _ S C L K
U37 U39 Co-layout
80 D E T#
K B C _ F L A S H
? ? ?
For 8512E
KBC_SPI_*_R = 0.1"~0.5"
1
J_KB1
X / 1 0K
24
80 D E T#
Pin100 ,104&106 EXT ? ? Pull h i
& Pull L ow .
K B C _ S P I _ S O
K B C _ S P I _ C E #
K B C _ S P I _ S C L K
V C H G _S E L
K B C _ S P I _ S I
C P U _F A N
V GA _ F A N
Del ? ? VGA 3/8
K B C _ W R E S E T #
3G _ D E T #
C C D _ D E T #
U S B _ P W R _E N #
2 2
K B C _ B E E P
S M D _ B A T
C C D _ D E T #
( S C I # )
( S M I # )
R53 4 Fo r I T85 18 BX&
IT8 51 9BX Onl y.
Pin87 3IN1 mult i
f unc tion pin
B A T _D E T
3G _ D E T #
( 3G _ P W R _ E N )
B A T _V O L T
H _P E C I
C H G_ E N
FOR W25
FOR W24/W27
K B -S I 1
K B -S O1 1
K B -S O6
K B -S I 7
K B -S I 3
K B -S I 0
K B -S O1 0
K B -S O5
K B -S O1 5
K B -S O4
K B -S O7
K B -S O0
K B -S O1 3
K B -S I 2
K B -S O2
K B -S O3
K B -S O8
K B -S O1 4
K B -S O9
K B -S O1 2
K B -S I 4
K B -S O1
K B -S I 2
K B -S O1 1
K B -S I 3
K B -S O5
K B -S I 5
K B -S I 6
K B -S O2
K B -S I 4
K B -S I 7
K B -S O1
K B -S O1 5
K B -S O9
K B -S O1 4
K B -S O1 3
K B -S O1 0
K B -S I 0
K B -S I 1
K B -S O8
K B -S O1 2
K B -S O3
K B -S O4
K B -S O0
( W E B 1 # )
K B -S I 6
K B -S O7
K B -S I 5
K B -S O6
ME _ W E #
( 8 0 P OR T _ D E T# )
10K / 1 0K
W L A N _ E N
L C D _ B R I G H T N E S S
R 7 9 7
0 _0 4
C E L L _C ON T R OL
80 C LK
( P M _P W R O K )
( W E B 2 # )
V G A _ F A N S E N
( A P K E Y # )
MO D E L _ I D
Mo dify 3/2 2
GA 2 0
S M C _ B A T
WEB1# --- WEB_ EM AIL #
WEB2# --- WEB_ WWW#
2 .4 9K / 7. 5K
0_ 04 FO R IT 851 2C X/ EX
0. 1U_ 04 F OR IT E8 51 2- J(I TE 85 02 -J W /0 C IR)
EC Co st D ow n
E C _ V S S
E C _ R E S E T 2 9
K B C _ F L A S H
K B C _ H O LD #
U37 U39 Co-layout
K B C _ S P I _ S O _R
K B C _ S P I _ S I _ R
K B C _ S P I _ C E #_ R
K B C _ S P I _ S C LK _ R
For 8502E
R 53 4
*1 0 m il _ s ho rt
OC P P E #
1 9
I C P P E #
1 9
W240BUQ(O2)
W251BUQ(O2)
A P U _ T A L E R T #
3 , 9
W 24 D0 3
Reserve
Summary of Contents for W270BUQ Series
Page 1: ...W270BUQ Series ...
Page 2: ...Preface I Preface Notebook Computer W270BUQ Service Manual ...
Page 23: ...Introduction 1 12 Mainboard Overview Bottom Connectors 1 Introduction ...
Page 38: ...Top A 3 A Part Lists Top 灰色 尚盟 Figure A 1 Top ...
Page 39: ...A 4 Bottom 9W A Part Lists Bottom 9W Figure A 2 Bottom ...
Page 40: ...Bottom 18W A 5 A Part Lists Bottom 18W Figure A 3 Bottom ...
Page 41: ...A 6 SATA DVD DUAL A Part Lists SATA DVD DUAL 志精 Figure 4 SATA DVD DUAL ...
Page 42: ...LCD A 7 A Part Lists LCD Figure A 5 LCD ...
Page 43: ...A 8 LCD A Part Lists ...
Page 73: ...Schematic Diagrams B 30 APU CORE NB CORE B Schematic Diagrams ...
Page 76: ...www s manuals com ...