Service manual
Schematic Diagrams
B - 38 KBC ITE IT8518E
B.Schematic Diagrams
KBC ITE IT8518E
Sheet 37 of 55
KBC ITE IT8518E
3.3VS3,9,10,11,12, 21,22,23,24,25, 26, 27,28,30,31,33,34,35,36, 38, 43,45
MU TE _S W#
0V
RX
WLAN_SW#31,34
U30
PCT25VF032B
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD#
7
VDD
8
KB-SO5
C504
*180p_50V_NPO_04
0_04 for M760T/TU
BKP1005HS121_04 for M740T/TU
EMI Solution
PWR_BTN#23
3G_DET#
SMD_CPU_THERM_R
BAT_DET46
PM_PCH_PWROK 23
RSMRST# 23
EC_VCC
PCLK_KBC
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
U32
IT8518E/HX
WRST#
14
LPCCLK
13
LAD0
10
LAD1
9
LAD2
8
LAD3
7
LFRAME#
6
( PD )LPCPD#/WUI6/GPE6
17
SERIR Q
5
ECSMI#/GPD4( PU )
15
ECSCI #/GPD3( PU )
23
GA20/GPB5
126
KBRST#/GPB6( PU )
4
KSI0/STB#
58
KSI1/AFD#
59
KSI2/INIT#
60
KSI3/SLI N#
61
KSI4
62
KSI5
63
KSI6
64
KSI7
65
KSO0/PD0
36
KSO1/PD1
37
KSO2/PD2
38
KSO3/PD3
39
KSO4/PD4
40
KSO5/PD5
41
KSO6/PD6
42
KSO7/PD7
43
KSO8/ACK#
44
KSO9/ BUSY
45
KSO10/PE
46
KSO11/ERR#
51
KSO12/SLCT
52
KSO13
53
KSO14
54
KSO15
55
VCC
11
VSTBY
26
VSTBY
50
VSTBY
92
VSTBY
114
VSTBY
127
VSTBY
121
VBAT
3
AVCC
74
PS2CLK0/ GPF0( PU )
85
PS2DAT0/GPF1( PU )
86
PS2CLK1/ GPF2( PU )
87
( PD )TMRI0/WUI2/GPC4
120
( PD )TMRI1/WUI3/GPC6
124
LPCRST#/WUI4/GPD2( PU )
22
( PD )WUI5/GPE5
35
PWRSW/GPE4( PU )
125
RI1#/WUI0/GPD0( PU )
18
RI2#/WUI1/GPD1( PU )
21
( PD )RING#/PWRFAIL#/LPCRST#/GPB7
112
TXD/ GPB 1( PU )
109
RXD/GPB0( PU )
108
( PD )CTX/GPB2
123
PS2DAT1/GPF3( PU )
88
PS2CLK2/ GPF4( PU )
89
PS2DAT2/GPF5( PU )
90
( PD )TACH0/GPD6
47
( PD )TACH1/GPD7
48
PWM0/GPA0( PU )
24
PWM1/GPA1( PU )
25
PWM2/GPA2( PU )
28
PWM3/GPA3( PU )
29
PWM4/GPA4( PU )
30
PWM5/GPA5( PU )
31
PWM6/GPA6( PU )
32
PWM7/GPA7( PU )
34
ADC0/GPI0
66
ADC1/GPI1
67
ADC2/GPI2
68
ADC3/GPI3
69
ADC4/GPI4
70
ADC5/GPI5
71
ADC6/GPI6
72
ADC7/GPI7
73
VSS
1
VSS
12
VSS
27
VSS
49
VSS
122
VSS
113
AVSS
75
CK32KE
2
CK32K
128
DAC3/GPJ3
79
DAC2/GPJ2
78
GPJ1
77
GPJ0
76
( PD )EGCS#/GPE2
83
( PD )EGCLK/GPE3
84
( PD )EGAD/GPE1
82
GINT/GPD5( PU )
33
L80LLAT/GPE7( PU )
20
VSS
91
DAC5/GPJ5
81
DAC4/GPJ4
80
PWUREQ#/GPC7( PU )
16
( PD )CRX/GPC0
119
( PD )KSO16/GPC3
56
( PD )KSO17/GPC5
57
( PD )GPH0/ID0
93
( PD )GPH1/ID1
94
( PD )GPH2/ID2
95
( PD )GPH3/ID3
96
( PD )GPH4/ID4
97
( PD )GPH5/ID5
98
( PD )GPH6/ID6
99
( PD )GPG1/ID7
107
SMCLK0/ GPB3
110
SMDAT0/GPB4
111
SMCLK1/ GPC1
115
SMDAT1/GPC2
116
SMCLK2/ GPF6( PU )
117
SMDAT2/GPF 7( PU )
118
FLFRAME#/GPG2
100
FLAD0/SCE#
101
FLAD 1/SI
102
FLAD2/SO
103
FLAD3/GPG6
104
FLCLK/SCK
105
( PD )FLRST#/WUI7/GPG0/TM
106
( PD )L80HLAT/GPE0
19
BKL_EN 12
BT_EN 30,34
SUS_PWR_ACK 23
WLAN_DET#30
R4440_04 R473 43_1%_04
R443*0_04
TH ERM_VOLT2
KB-SO9
SMC_CPU_THERM_R
C531
*180p_50V_NPO_04
BAT_VOLT46
W370ET
R487
*10mil_short
R457 15_1%_04
CCD_SW#31
CCD_SW#
CRIT_TEMP_REP#26
DD_ON 31,38,39
6-03-08518-0P2
6-04-25032-491
KB-SO1
KB-SO8
KB-SO4
KB-SI0
KB-SO7
KB-SO10
KB-SO6
KB-SO14
KB-SO0
KB-SI3
KB-SI6
KB-SI1
KB-SI7
KB-SO11
KB-SI2
KB-SI5
KB-SO12
KB-SO5
KB-SO9
KB-SI4
KB-SO13
KB-SO2
KB-SO3
MU TE _S W#
Board-n¥[
R445 *10K_04
C690
0.1u_16V_Y5V_04
CPU_FANSEN 30
C418
1u_6.3V_X5R_04
KBC Connect§ó´«§»-P
0_04 FOR IT8512CX/EX
0.1U_04 FOR ITE8512-J(ITE8502-J W/0 CIR)
EC Cost Down
J_KB1
*85208-24051
24
23
22
14
12
11
21
8
20
19
6
5
18
4
17
10
9
7
3
2
1
16
15
13
6-20-94AF0-124
C645
0.1u_16V_Y5V_04
C661
0.1u_16V_Y5V_04
NC2 SHORT
C646
0.1u_16V_Y5V_04
C658
0.1u_16V_Y5V_04
KB-SO6
C506
*180p_50V_NPO_04
R209
*10_04
C685 0.1u_16V_Y5V_04
C641
*0. 1u_16V_Y5V_04
C655
10u_10V_Y5V_08
KBC_SPI_SO_R
KBC_SPI_SCLK_R
KBC_HOLD#
C687 *0. 1u_16V_Y 5V_04
.
L54 HCB1005KF-121T20
SPI_VDD_1
.
L51
HCB1005KF-121T20
32Mbit
C640
*0.1u_16V_Y5V_04
KBC_FLASH
R208
100K_04
KBC_SPI_SCLK
KBC_SPI_SO
KBC_SPI_CE#_R
KBC_SPI_SI
KBC_SPI_CE#
NVVDD_CURRENT_LIMIT19
R499 *0_04
R459
4.7K_04
NC1
SHORT
C648 1u_6.3V_X5R_04
R446 10K_04
C421 *10p_50V_NPO_04
C676
0.1u_16V_Y5V_04
R464
1K_04
R498 *10mil_short
C643
0.1u_16V_Y5V_04
KBC_AVDD
VDD3
VDD3
VDD3
VDD3
KBC_AGND
KBC_AGND
VDD3
SMI#25,26
SCI#25,26
W350ET
3.3VS
VDD3
SWI# 23
KBC_RST# 26
R5000_04
3G_EN30
CCD_EN 31
VDD321,30,31, 33,34,38,39,46
ALL_SYS_PWRGD 12,23, 43
BRIGH TNESS12
SUSB# 6,23,38,40
SUSC# 23,41
CCD_SW#
TP_D ATA31
CCD_DET#31
LID_SW#12,34
SERIRQ21,31
LPC_AD021,31
SMD_BAT46
SMC_BAT46
LPC_AD121,31
LPC_AD221,31
LED_PWR31
TP_C LK31
LPC_AD321,31
LPC_FRAME#21,31
LED_BAT_CHG31
LED_CAP#31
LED_BAT_FULL31
LED_NUM#31
BUF_PLT_RST#25,30,33
KBC_BEEP36
LED_SCROLL#31
PWR_SW#38
PCLK_KBC25
AC_IN#46
LED_ACIN31
80CLK30
GA2026
PCLK_KBC_R
C650 33p_50V_NPO_04
BAT_VOLT
PCLK_KBC
KBC_WRESET#
LCD_BRIGHTNESS
KBC_BEEP
SMD_BAT
80CLK
SMC_BAT
R458 100_04
CCD_DET#
BAT_DET KB-SO1
C327
*180p_50V_NPO_04
R466 47_04
EC MODULE CHOOSE (FOR DIFFERENCE K/B TYPE)
KB-SO14
C742
*180p_50V_NPO_04
dGPU_PWR_EN#
CCD_DET#
HSPI_MSI 21
HSPI_MSO 21
HSPI_SCLK 21
HSPI_CE# 21
KBC_SPI_*_R = 0.1"~0.5"
KBC_SPI_CE#
PME# 25,33
MINI_PWR_ON30
RN32
2.2K_8P4R_04
1
2
3
45
6
7
8
R460 15_1%_04
VGA_SW# 34
KB-SO8
KB-SO4
KB-SI0
KB-SO14
KB-SO10
KB-SO6
KB-SO7
KB-SO1
KB-SI1
KB-SI7
KB-SI6
KB-SO0
KB-SI3
KB-SO3
KB-SO12
KB-SO5
KB-SI5
KB-SI2
KB-SO11
KB-SO15
KB-SO9
KB-SI4
KB-SO13
KB-SO2
LCD_BRIGHTNESS
BAT_VOLT
W350ET
H_PROCHOT#_EC 3
KBC_SPI_SI_R
KBC_SPI _SI
OPTIMUS_MOD E34
KB-SO0
C323
180p_50V_NPO_04
C511
*180p_50V_NPO_04
J_KB2
85208-24051
24
23
22
14
12
11
21
8
20
19
6
5
18
4
17
10
9
7
3
2
1
16
15
13
KB-SO7
TOTAL_C UR46
KBC_SPI _SO
MODEL_ID
CK32K
CK32KE
KBC_SPI _SCLK
BT_DET#30
KB-SO15
R477 *0_04
SMC_CPU_THERM_R
R479 *0_04
R480 *10K_04
SML1CLK 22
SML1DATA 22
SMD_CPU_THERM_R
ME_ W E21
MODEL _I D
R462 47_04
NB_ENAVDD 12,24
3IN130
AC_PRESENT23,25
KB-SO2
C497
*180p_50V_NPO_04
W370ET
6-13-15R01-28C
USB_CHARGE_EN 38,39
H_PECI 3,22,26
KB-SO15
C765
180p_50V_NPO_04
dGPU_PWR_EN# 25, 38,41,45
dGPU_RST# 25
dGPU_PWR_EN#
1
MODEL_ID
3.3VV1.0
R446 10K/ R445 X
VER.
VOLTAGE
J_KB1
R446 X /R445 10K
SMC_CPU_THERM_R
3G_DET#30
SMD_VGA_THERM19
SMC_VGA_THERM19
SMD_VGA_THERM
SMC_VGA_THERM
C767 *33p_50V_NPO_04
KBC_SPI_CE#
C766 *33p_50V_NPO_04
C768 *33p_50V_NPO_04
KBC_SPI_SI
KBC_SPI_SO
24
KBC_MUTE#25,36
WLAN_EN30
CPU_FAN30
3G_POWER 30
R501*0_04
KB-SO8
C518
*180p_50V_NPO_04
EC_VSS
RX
KBC_WRESET#
MUTE_SW# 31
CHG_EN46