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Schematic Diagrams

B - 26 EC-IT8502E

B.Schematic Diagrams

EC-IT8502E

BAT_VOLT

KBC_AC/B ATL#

CPU_THERM2

CPU_THERM

R147 10K_04KBC_AC/BA TL #

C6 93

0.1u_16V_Y5V_04

3G _D E T #

D03B

GND

EC_VCC

SENSOR_INT#

PCLK_ KBC

BT_ EN

LE D _ S C R O L L#

LED_BAT_CHG#

VDD 3

5VS

SATA_L ED #

GND

J_LED 1

87151-2607G

LE D _ N U M #

3.3V S

LE D _ B A T_ F U LL #

5VS

SENSO R_ INT#

LE D _ P W R #

3.3V S

VDD 3

LE D _ A C I N #

LE D _ C A P #

WLAN_EN

FOR W870CU

KBC_SPI_*_R = 0.1"~0.5"

VCOR E_ON 39

KB C_MU TE#33

R217 10K_04

GA 2016

0_ 04 F OR IT 851 2C X/E X (W8 7)

0. 1U _0 4 F OR IT E8 512 -J (IT E8 50 2-J W/0 C IR) ( W86 )

EC Cost Down

80C LK

80D ET#

3I N 1

C641

*10P _50V_04

VDD3

3. 3 V S

BUF_PLT_R ST#3, 12 , 1 5, 2 6 , 2 7, 2 9

SM D_BAT40

LP C _A D 111,28

2.4V

LED_BAT_FULL#30

LED _AC IN#30

LED_PWR #30

LED_BAT_CHG #30

R1 1 9 4 7_ 0 4

SCI# 16

KBC _A C/BATL #

R1 3 6 4 7_ 0 4

3.3V

SUSC # 1 3,37

D21

BAV 99

26 .7 K

PCLK_KBC15

LAN _PC IE_W AKE#29

3G_D ET#27

D22

BAV 99

V1 .0

LOW ACTIVE

C210

0 . 1u _ 1 6V _ Y 5 V _ 0 4

VE R.

R182

100K_04

3 .3VS 3 ,9 ,1 0,1 1 ,1 2,1 3 ,1 5,1 6 ,17 ,1 8 ,20 ,2 1 ,22 ,2 3 ,24 ,2 6 ,27 ,2 8,2 9 ,3 0,3 1 ,3 2,3 3 ,3 4,3 9

R158 1K _04

R193 1 0 K_0 4

L AN_ DSM #29

D03A NET

GLAN_ON

change to

LAN_DSM#

KB-SO8

KB-SO1

KB-SI0

KB-SO4

KB-SO15

5VS 18,20,22,23,24,28,30,31,32,33,34,39

KB-SO7

KB-SO10

KB-SO6

KB-SO14

KB-SO0

KB-SI3

KB-SI6

VO LT AGE

KB-SI7

KB-SI1

KB-SO11

KB-SI2

KB-SI5

C1 7 6

10u _ 1 0V_ Y 5V_ 08

CIR _ RX30

L24

HC B1005KF-121T20

KB-SO5

KB-SO12

KB-SO9

KB-SO13

KB-SI4

KB-SO2

KB-SO3

D26

BAV 99

VDD3

M ODE L_ ID

LP C _A D 211,28

THERM _ ALER T#2

C 225 1u_10V_06

BAT_ D ET40

TP_DATA28

LID_SW#21,28

PWR_SW#34

R126 15_1% _04

SERI RQ11,28

C1 9 0

0.1u_16V_Y 5V_04

KBC_RST# 1 6

R192 * 26.7K_04

C19 5

0 . 1u _ 1 6 V _ Y 5V _ 0 4

R149 15_1% _04

BAT_ DE T

SMC _BAT

SMD _BAT

???

SM C_ VGA_T HER M24

X4 ZM200S_32.768KHZ

3 2

R199 10K_04

K/ B MA T R IX

FL A S H

LP C

SMBUS

PS/2

PWM

UART

DAC

CLOCK

IT85 12 E

CI R

ADC

WAKE UP

PW M / CO U N TE R

LP C / WA K E U P

EX T GP I O

GP INTERRUPT

WA K E U P

GP I O

U16

IT8 5 02 E-J

WR ST#

LPCC LK

LAD0

LAD1

LAD2

LAD3

LFRAM E#

( PD )LPC PD# /WUI 6/G PE6

SER IRQ

EC SMI#/GPD 4( P U )

EC SCI#/GPD 3( P U )

GA 20 /GPB 5

12 6

KBR ST#/G PB6( P U )

KSI0/STB#

KSI 1/AFD #

KSI2/INIT#

KSI3 /SLIN #

KSI4

KSI5

KSI6

KSI7

KSO 0/PD 0

KSO 1/PD 1

KSO 2/PD 2

KSO 3/PD 3

KSO 4/PD 4

KSO 5/PD 5

KSO 6/PD 6

KSO 7/PD 7

KSO 8/AC K#

KSO 9/BUSY

KS O1 0/PE

KSO1 1/ERR #

KSO12 /SLC T

KSO1 3

KSO1 4

KSO1 5

VC C

VST BY

VSTBY

VSTB Y

VSTBY

11 4

VSTBY

12 7

VSTBY

121

VBAT

AVCC

PS2CLK0/GPF0( PU )

PS2DAT0/GPF1( PU )

PS2CLK1/GPF2( PU )

( PD )TMR I0 /W UI2 /GPC 4

12 0

( PD )TMR I1 /W UI3 /GPC 6

12 4

LPCR ST# /W U I4/G PD2( PU )

( P D )W UI 5/G P E 5

PWR SW/GPE4( PU )

12 5

RI1 # /W UI0 /G PD0 ( PU )

RI2 # /W UI1 /G PD1 ( PU )

( PD )RIN G#/PW RF AIL#/LPCR ST#/G PB7

11 2

TXD /GPB1 ( PU )

10 9

RXD /GPB0( PU )

10 8

( PD )C TX/G PB2

12 3

PS2DAT1/GPF3( PU )

PS2CLK2/GPF4( PU )

PS2DAT2/GPF5( PU )

( PD )TAC H0/GPD 6

( PD )TAC H1/GPD 7

PW M 0/G PA0 ( PU )

PW M 1/G PA1 ( PU )

PW M 2/G PA2 ( PU )

PW M 3/G PA3 ( PU )

PW M 4/G PA4 ( PU )

PW M 5/G PA5 ( PU )

PW M 6/G PA6 ( PU )

PW M 7/G PA7 ( PU )

AD C0 /GPI0

AD C1 /GPI1

AD C2 /GPI2

AD C3 /GPI3

AD C4 /GPI4

AD C5 /GPI5

AD C6 /GPI6

AD C7 /GPI7

VSS

122

VSS

11 3

AVSS

CK32KE

CK32K

12 8

DA C3 /GPJ 3

DA C2 /GPJ 2

DA C1 /GPJ 1

DA C0 /GPJ 0

( PD )EGCS #/G PE2

( PD )EGCLK/G PE3

( PD )E G A D/G P E 1

GIN T/GPD 5( PU )

L80LLAT/G PE7( PU )

VSS

DA C5 /GPJ 5

DA C4 /GPJ 4

PW U REQ#/G PC7 ( PU )

( PD )C RX/GPC 0

11 9

( PD )KSO16 /GPC 3

( PD )KSO17 /GPC 5

( PD )ID0/GPH 0

( PD )ID1/GPH 1

( PD )ID2/GPH 2

( PD )ID3/GPH 3

( PD )ID4/GPH 4

( PD )ID5/GPH 5

( PD )ID6/GPH 6

( PD )ID7/GPG 1

10 7

SM CL K0/G PB3

11 0

SM DAT0/G PB4

11 1

SM CL K1/G PC1

11 5

SM DAT1/G PC2

11 6

SM CL K2/G PF6 ( PU )

11 7

SM DAT2/G PF7( PU )

11 8

FL FR AME# /GPG 2

10 0

FLAD 0/SC E#

10 1

FLAD 1/SI

10 2

FLAD2/SO

10 3

FLAD3/GPG 6

10 4

FLCLK/SCK

10 5

( PD )FL RST#/W UI7 /TM /GPG 0

10 6

( PD )L80H LA T/G PE0

C184

15p_50V_N PO_04

U1 3

EN25 P05 -50 GCP

CE#

WP#

VSS

SCK

HOLD#

VDD

VDD 3

R 152 4.7K_04

C6 4 7

0.1u_16V_Y 5V_04

SMC _C PU_THERM2,12

C177

0.1u_16V_Y5V_04

51 2K bit

CC D_DET #30

R205 0_0 4

VD D3

C64 9

0 . 1u _ 1 6 V _ Y 5V _ 0 4

VGA_FANSEN 30

C 179 0.1u_16V_Y 5V_04

C189

15p_50V_N PO_04

CPU _F AN30

D25

BAV 99

R473 * 10_04

KBC_ A VDD

C 194 0.1u_16V_Y 5V_04

C211

0 . 1u _ 1 6V _ Y 5 V _ 0 4

R164 10M_04

SWI# 13

KBC_SPI_SO_R

KBC _HOLD #

KBC_SPI_SCLK_R

C646 * 0 .1u _16V_Y5V_0 4

SPI _VD D_1

L26

H CB1005KF-121T20

C207

*.1U_16V_04

KBC _FLAS H

KBC _SPI_SI

KBC _SPI_SO

KBC _SPI_SC LK

KBC_SPI_CE#_R

KBC_SPI_SI_R

KBC _SPI_C E#

J _ KBT 1

8 52 0 1- 24 0 51

R206 100_04

R 151 4.7K_04

R171 *0_04

J_H 8DBG1

SPU FZ-10S3 -VB-0-B

910

R157 4.7K_04

R200 10K_04

BAT_ VO LT

VDD 3

VD D3

KBC _AGND

KBC_AGN D

VD D3

DD_O N 3 4

SMI# 16

CHG _ EN 40

PWR_BTN# 13

3G _E N 2 7

RSMR ST# 13

CPU_FA N SEN 30

BT_DE T# 28

ALL _ SYS_PW R GD 13 ,21,24

WLAN_DET# 27

BR IGH TN ESS21

SUSB# 13,26,28, 36,41

SUS_PWR_AC K 13

BAT_ VOLT40

LP C _A D 011,28

MXM_ PRE S NT #16 , 2 4

SM C_BAT40

LPC _FR AME#11,28

LP C _A D 311,28

TP_CLK28

KBC _BEE P31

SM D_ VGA_T HER M24

AC_IN #13,40

WLAN_EN27

BKL_ EN21

BT_E N28

80 C LK27

3I N 127

80DET#27

P C LK _K B C _ R

80 C L K

D02 Delete

C333,C334,C335,C337,C340,C341,C343,

C344,C330,C331,C332,C336,C338,C339,

C342,C345,C346,C347,C348,C349,C350,

C351,C352,C353

VDD 3

80 D E T#

3I N 1

CASE_FAN30

SM D_ VGA_T HER M

SM C_ VGA_T HER M

3G_DET# BAT_VOLT_R

CASE_FANSE N 3 0

LAN_PC IE_WA KE#

WLAN_EN

80DET#

BAT_VOLT_R

PC LK_KBC

BT_EN

LCD_BRIGHTNESS

3IN1

LED_AC IN#

MODEL_ID

SM D_BAT

80CLK

SM C_BAT

BAT_DET

CCD_DET#

PM_EXTTS#_EC3

CCD _ DET #

D0 2

J_80DEBUG1

88266-05001

KBC_SPI_CE#

CIR_IN

L ED_ SC ROL L #

L ED_ NU M#

L ED_ CA P#

6-20-94A80-124

LED_BAT_FULL#

LED_BAT_CHG #

LED_PWR #

R137 *0_04

VGA_FAN30

L CD _ BRIG HTNES S

D1 5 SC S75 1 V-4 0

CIR _IN

R148 10K_04-7

KBC_SPI_SI

VDD 3

AC/BATL# 24

D16 SCS355V-7

KBC_SPI_SO

CK32 KE

CK32 K

NC 2

*N C _ 04

NC3

*NC_04

KBC_SPI_SCL K

S MD_ CP U_ TH ERM2,12

VDD 3 2,11,27,28,29,30, 34,35,40

SM D_CPU _THE RM

R525 *0_04

H_PECI3,16

MO D E L _ ID

D02 ADD

C678

D02 CHANGE

R 4 89 0_ 0 4

D03 CHANGE

FOR W870CU

SM C_CPU _THE RM

SM C_BAT

SM D_BAT

3G _PW REN27

DD_O N_LA TC H 34

DD _O N_L ATC H

CIR_RX

C678

0.1u_16V_Y 5V _04

PM_ CL K RU N# 13,2 8

KB-SI7

KB-SO 13

KB-SO 8

KB-SO 5

KB-SO 4

KB-SO 6

KB-SO 9

KB-SI3

CC D_EN

KB-SO 12

KB-SO 7

KB-SI4

KB-SO 1

KB-SO 11

KB-SO 15

KB-SO 2

KB-SI1

KB-SI2

KB-SI6

KB-SI0

E C_VSS

KB-SO 14

KB-SI5

KB-SO 0

KB-SO 3

KB-SO 10

J_KB T2

85201-24051-7

SATA_ LED # 1 1

KBC _W RESET#

CCD _EN 3 0

Sheet 25 of 57

EC-IT8502E