Service manual
Schematic Diagrams
B - 26 KBC-ITE IT8518
B.Schematic Diagrams
KBC-ITE IT8518
LPC_AD[3:0]14,33
LPC_AD1
LPC_AD0
LPC_AD3
LPC_AD2
KBC_VCC
KBC_WRESET#
KBC_WRESET#
KBC_SPI_SO
KBC_SPI _SCLK
Z2501
KBC_SPI_CE#
KBC_SPI_SI
KBC_RST#
80CLK
BAT_VOLT
BAT_DET
TXD1
RXD1
DCD1#
DSR1#
RI1#
RTS1#
CTS1#
DTR1#
TXD0
RXD0
DCD0#
DSR0#
RI0#
RTS0#
CTS0#
DTR0#
BRIGHTNESS
Z2504
CPU_FANSEN
Z2503
SCAL_SCL21
SCAL_SDA21
LCD_BRIGHTNESS
PR193 2.2K_04
PR192 2.2K_04
NEAR EC PIN
Brightness
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WEB2 #- -- W EB_W WW #
IT8502E_NX-L For Calpella System
a Special purpose.
RB
RA
MODEL_ID1
R546 *10K_04
R552 *10K_04
BAT_VOLT42
X10K
RA
VDD3
RB
RA
V1.0
RB
MODEL_ID
R229 0_04
EAPD_MODE 26, 27
EC_EAPD_MODE
PCLK_KBC
BAT_VOLT
Z2506
BAT_DET
MODEL_ID
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6/26
DISPLAY#_MODE 21,22,31
UP# 21,22,31
MENU# 21,22, 31
C221
0.1u_50V_Y5V_06
DOWN# 21,22,31
MOD E L_ ID 1
WLAN_D ET#33
CPU_FAN
LCDI D1 20,21
LCDID0 20,21
.
L58 HCB1005KF-121T20
C674
0.1u_16V_Y5V_04
PS2CLK2_R
SMC_BAT
PCB Footprint
ACA-SPI-004-T03
PS2DAT2_R
80CLK33
R618 *10K_04
KBC_SPI_CE#
KBC_SPI_SI
KBC_SPI_SCLK
KBC_SPI_SO_R
Z2505
KBC_FLASH
KBC_SPI_SI_R
KBC_SPI_SO
KBC_SPI_SCLK_R
KBC_SPI_CE#_R
VDD3
R99
10K_04
CPU_FANSEN
CPU_FAN
LED_BAT_CHG31
LED_BAT_FULL31
R530 *0_04
12VS 31,35
R256 *0_04
6/26
VIN1 34,37
5VS 18,24,26, 31,34,40,41
VDD3 5,12,13,14,18,20,21,22,27,29,30,32,33,34,35,37,38,39,42
VA 34,42
VIN 20,34,37,39,40,41,42
R235
100K_04
KBC_SPI_*_R = 0.1"~0.5"
8Mbit
µL«OÅ@
PM_PCH_PWROK13,14
ALL_SYS_PWRGD14,40
R606 0_04
BAT_DET42
LCDI D2 20,21
R607 0_04
SMD_BAT
R608 0_04
R233 0_04
PMOSFET_CONTROL#42
R609 0_04
PME#11
MOD E_SE L21
6/22
Z2502
3IN1
C535 1u_6.3V_X5R_04
NC1 NC_04
C536
0.1u_16V_Y 5V_04
C533
0.1u_16V_Y5V_04
R455 10K_04
C287
0.1u_16V_Y5V_04
C537 *0.1u_16V_Y5V_04
K/B MATRIX
FLASH
LPC
GPIO
SM BUS
PS/2
PWM
WAKE UP
UART port
DAC
CLOCK
IT8518
CIR
ADC
WAKE UP
PWM/COUNTER
LPC/WAKE UP
EXT GPIO
U17
IT8518
WRST#
14
LPCCLK
13
LAD0
10
LAD1
9
LAD2
8
LAD3
7
LFRAME#
6
(PD)LPCPD#/WUI6/GPE6
17
SERIRQ
5
ECSMI#/GPD4(PU)
15
ECSCI#/GPD3(PU)
23
GA20/GPB5
126
KBRST#/GPB6(UP)
4
(PD)SSCE1#/GPG0/TM
106
FSCK
105
DSR0#/GPG6
104
FMISO
103
FMOSI
102
FSCE#
101
SSCE0#/GPG2
100
KSI0/STB#
58
KSI1/AFD#
59
KSI2/ I NIT#
60
KSI3/SLIN#
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
SMCLK0/ GPB3
110
SMCLK1/ GPC1
115
SMDAT0/GPB4
111
SMDAT1/GPC2
116
PS2CLK0/GPF0(PU)
85
PS2DAT0/GPF1(PU)
86
PS2CLK1/DTR0#/GPF2
87
TMR0/WUI2/GPC4(PD)
120
TMR1/WUI3/GPC6(PD)
124
LPCRST#/WUI4/GPD2(UP)
22
WUI5/RTS1#/GPE5
35
PWRSW/GPE4(PU )
125
RI1#/WUI0/GPD0(PU)
18
RI2#/WUI1/GPD1(PU)
21
RING#/PWRFAIL#/LPCRST#/GPB7(PD)
112
TXD / SOU T0 / GP B1
109
RXD/SIN0/GPB0
108
CTX0/GPB2(PD )
123
PS2DAT1/RTS0#/GPF3
88
PS2CLK2/GPF4(PU)
89
PS2DAT2/GPF5(PU)
90
SMCLK2/ GPF6(PU)
117
SMDAT2/GPF7(PU)
118
TACH0/GPD6(PD)
47
TACH1/GPD7(PD)
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/SSCK/GPA6(PU)
32
PWM7/RIG1#/GPA7
34
ADC0/GPI0
66
ADC1/GPI1
67
ADC2/GPI2
68
ADC3/GPI3
69
ADC4/GPI4
70
ADC5/DCD1#/GPI5
71
ADC6/DSR1#/GPI6
72
ADC7/CTS1#/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
DAC1/GPJ1
77
DAC0/GPJ0
76
(PD)EGCS#/GPE2
83
(PD)EGCLK/GPE3
84
(PD)EGAD/GPE1
82
GINT/CTS0#/GPD5
33
L80LLAT/WUI7/GPE7(PU)
20
L80HLAT/GPE0(PD)
19
(PD)GPH5/ID5
98
(PD)GPH6/ID6
99
(PD)GPH3/ID3
96
(PD)GPH4/ID4
97
CRX1/SIN1/GPH1/ID1
94
CTX1/SOUT1/GPH2/ID2
95
(PD)CLKRUN#/GPH0/ID0
93
VSS
91
DAC5/RIG0#/GPJ5
81
DAC4/DCD0#/GPJ4
80
PWUREQ#/GPC7(PU)
16
CRX0/GPC0(PD)
119
GPG1/DTR1#/ID7
107
(PD)KSO17/SSI/GPC5
57
(PD )KSO16/SSO/GPC3
56
C546 *10p_50V_NPO_04
R492
100K_04
R524 47_04
C569 *33p_50V_NPO_04
SCAL_SDASMD_BAT
SMC_BAT
J_FAN1
85205-04001
1
2
3
4
NC1
NC2
C544
0.1u_16V_Y5V_04
R489 *10mil_short
C547 0.1u_16V_Y 5V_04
C568 0.1u_16V_Y5V_04
C542
0.1u_16V_Y5V_04
PS2CLK0_R
R525 4.7K_04
R454 *10K_04
C541
*0. 1u_16V_Y 5V_04
R514 1K_1%_04
J_FLASH
88266-02001
1
2
R526 15_1%_04
.
L31
HCB1005KF-121T20
R472 10K_04
PC_AUDIO_EN21
R527 47_04
.
L32
HCB1005KF-121T20
R528 43_1%_04
C549
0.1u_16V_Y5V_04
R529 *0_04
R494 *10_04
BT_DET# 33
C286
0.1u_16V_Y5V_04
H_PROCHOT_EC5
C543
0.1u_16V_Y5V_04
C538
*0.1u_16V_Y5V_04
R523 15_1%_04
D15
*BAV99
A
C
AC
R228 *0_04
C571
10u_10V_Y5V_08_E
U28
MX25L3206E
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD#
7
VDD
8
R484 *10mil_short
VDD3
VDD3
VDD3
KBC_AGND
VDD3
KBC_AVD D
VDD3
3.3VS
VDD3
KBC_AGND
3.3V
3.3V 2,5,30,32,34,35,36,38
3.3VS 5,9,10,11,13,14,15, 18,21,24,26,27,28,30,31,33,34, 35,36,40
3IN1 33
DD_ON 34,37
LED_PWR31
EC_WAKE#34
RSMRST# 14
PWR_BTN# 14
TOTAL_C UR42
BKL_EN20, 21
GA2013
AC_IN#42
BUF_PLT_RST#14,21,29,30,32, 33
6/28
SERIRQ13 ,33
PCLK_KBC16
LPC_FRAME#14,33
SMI#13
LED_ACIN31
SUS_PWR_ACK 14
SCI#13
KBC_MUTE#27
WLAN_EN33
H_PECI5,13
ME_W E14
SMD_CPU_THERM14
SMC_CPU_THERM14
SMD_BAT42
SMC_BAT42
HSPI_MSI 14
HSPI _CE# 14
HSPI_MSO 14
HSPI_SCLK 14KBC_BEEP26
SB_KBCRST# 13
TH ERM_VOLT2
SWI #14
CCD_EN 33
DSR0# 36
DCD0# 36
RTS0# 36
CTS0# 36
DTR0# 36
RI0# 36
RXD0 36
TXD0 36
DSR1# 36
DCD1# 36
RTS1# 36
CTS1# 36
DTR1# 36
RI1# 36
RXD1 36
TXD1 36
PWR_SW#21, 34
SUSC# 14,39
SUSB# 14,30,34,35
BRIGHTNESS20
R255 *0_04
C163
4.7u_25V_X5R_08
12VS
R230 0_04
0724
BT_EN31, 33
CPU FAN CONTROL
PS2DAT0_R
KB-SI3
PS2CLK236
PS2DAT036
R572 0_04
PS2CLK036
PS2DAT236
SCAL_SCL
MODEL_ID
Sheet 25 of 45
KBC-ITE IT8518