Service manual

Schematic Diagrams
KBC-ITE IT8502E B - 29
B.Schematic Diagrams
KBC-ITE IT8502E
KBC _HOLD #
0V
RX
8518_BT_DET#
R385 *0_04
8518_WLAN _D ET# R387 *0_04
R386 *0_04
R388 *0_04
*0_04
8518_D D_ON
8518_S PI_SO 14
8518_S PI_SC LK 14
8518_S PI_C S0# 14
R389 *0_04
8518_S PI_SI 14
85 0 2_C PU_FAN
R390 *0_048502_ISO N
R378 *0_04
R377 *0_04
R379 *0_04
8502_D D_ON _LATCH
R380
8502_WLAN _D ET#
8502_BT_DET#
8502_D D_ON
BT_D ET# 23,29
WL AN_DET# 2 3
8518_D D_ON _LATCH
ISON 2 5
DD _O N 3 1
DD _O N_L ATCH 3 1
ITE 8518E
CPU _F AN 3 0
KBC _S PI_SO _R K B C _S P I _S O
K B C _S P I _S I
3G_DET#
KBC _S PI_C E# _R
EC_VCC
PCLK_KBC
8502_DD _ON_LATCH
1
J_KB1
24
FOR E5120Q
K BC_ FLASH
V CHG _SEL37
FOR E4120
R393 15_04
8518_B T_DE T#
W LAN _LED #23,29
BAT_D ET37
R394 47_04
0831
KBC _S PI_SI _R
0 _0 4 FOR I T8 512 CX /E X
0 .1 U_ 04 FO R ITE 85 12 -J( IT E8 502 -J W/0 C IR )
E C Co st Do wn
KBC_HOLD#
SM D_BAT
SM C_BAT
RN 19
2.2K _4P2R_04
14
23
VDD 3
KB-SO6
KB-SI7
KBC_SPI_SC LK
CK3 2 KE
KB-SI0
KB-SI3
KB-SI1
KB-SO11
KB-SO15
KB-SO4
KB-SO7
KB-SO0
85 1 8_ D D _ O N
KB-SO10
KB-SO5
KB-SO2
PCLK_KBC _R
KBC_SPI_SO
KB-SO3
KB-SO8
KB-SI4
KB-SO1
KB-SO13
8502_DD _ON
KB-SI2
KB-SO12
8502_BT_DET#
KBC_SPI_SI
KB-SI5
KB-SI6
KB-SO14
KB-SO9
KBC_SPI_CE #
CK3 2 K
8502_WLAN_D ET#
MC H_TSATN _EC
LCD _BR IGH TNESS
R 169 * 10M_04
R147 10K_04
C216
1u_6.3V_X5R _04
C225
0.1u_16V_Y 5V_04
C221
12p_50V_NPO_04
.
L1 8
HC B1005KF-121T20
C21 8
0.1u_16V_Y5V_04
C211 * 0. 1u_16V_Y5V_04
R164 *10_04
C226
0.1u_16V_Y 5V_04
85 0 2_ I S O N
3G_DET#
BAT_VOLT
.
L17
H CB1005KF- 121T20
K/B MATRIX
FLASH
LPC
SMBUS
PS/2
PWM
UART
DAC
CLOCK
ITE 8502E
ITE 8518E
CIR
ADC
WAKE UP
PWM/COUNTER
LPC/WAKE UP
EXT GPIO
GP INTERRUPT
WAKE UP
GPIO
U1 1
IT85 02 E
WR ST#
14
LPCC LK
13
LAD0
10
LAD1
9
LAD2
8
LAD3
7
LFRA ME#
6
( PD )LPCP D#/WUI6/G PE6
17
SER IRQ
5
EC SMI#/G PD4( PU )
15
EC SCI#/G PD3( PU )
23
G A20 /G PB5
126
KBR ST#/G PB6( PU )
4
KSI0/STB#
58
KSI1/AFD #
59
KSI2/I NIT#
60
KSI3/SLIN#
61
KSI4
62
KSI5
63
KSI6
64
KSI7
65
KSO0 /PD 0
36
KSO1 /PD 1
37
KSO2 /PD 2
38
KSO3 /PD 3
39
KSO4 /PD 4
40
KSO5 /PD 5
41
KSO6 /PD 6
42
KSO7 /PD 7
43
KSO8 /AC K#
44
KSO 9/B USY
45
KSO 1 0/PE
46
KSO1 1/ERR #
51
KS O12/S LC T
52
KS O13
53
KS O14
54
KS O15
55
VCC
11
VSTBY
26
VST BY
50
VSTBY
92
VSTB Y
114
VSTB Y
127
VSTBY
121
VBAT
3
AVCC
74
PS2C LK0/G PF0( PU )
85
PS2D AT0/G PF1( PU )
86
PS2C LK1/G PF2( PU )
87
( P D )T MR I0/W UI2 /GPC 4
12 0
( P D )T MR I1/W UI3 /GPC 6
12 4
LPCR ST#/ WUI4/GPD 2( PU )
22
( PD )W UI5/G PE5
35
PWR SW/G PE4( PU )
125
RI1#/WUI0/GPD0( PU )
18
RI2#/WUI1/GPD1( PU )
21
( PD )R ING #/ PW RFAIL#/LPCR ST# /G PB7
11 2
TXD/G PB1( PU )
109
R XD /GPB0( PU )
108
( PD )C TX/G PB2
12 3
PS2D AT1/G PF3( PU )
88
PS2C LK2/G PF4( PU )
89
PS2D AT2/G PF5( PU )
90
( PD )TAC H0/GPD 6
47
( PD )TAC H1/GPD 7
48
PWM 0/GPA0( PU )
24
PWM 1/GPA1( PU )
25
PWM 2/GPA2( PU )
28
PWM 3/GPA3( PU )
29
PWM 4/GPA4( PU )
30
PWM 5/GPA5( PU )
31
PWM 6/GPA6( PU )
32
PWM 7/GPA7( PU )
34
AD C0/GPI 0
66
AD C1/GPI 1
67
AD C2/GPI 2
68
AD C3/GPI 3
69
AD C4/GPI 4
70
AD C5/GPI 5
71
AD C6/GPI 6
72
AD C7/GPI 7
73
VSS
1
VSS
12
VSS
27
VSS
49
VSS
122
VSS
113
AVSS
75
CK32KE
2
CK32K
12 8
DAC3/GPJ3
79
DAC2/GPJ2
78
DAC1/GPJ1
77
DAC0/GPJ0
76
( PD )EG CS#/G PE2
83
( PD )EG CLK/G PE3
84
( P D )EG AD/G PE1
82
G INT/GPD 5( PU )
33
L80LLAT/GPE7( PU )
20
VSS
91
DAC5/GPJ5
81
DAC4/GPJ4
80
PWU REQ # /GPC 7( PU )
16
( PD )CRX/GPC0
11 9
( PD )KSO16/GPC 3
56
( PD )KSO17/GPC 5
57
( PD )ID0 /GP H 0
93
( PD )ID1 /GP H 1
94
( PD )ID2 /GP H 2
95
( PD )ID3 /GP H 3
96
( PD )ID4 /GP H 4
97
( PD )ID5 /GP H 5
98
( PD )ID6 /GP H 6
99
( PD )ID7 /GP G 1
10 7
SM CLK0 /GPB3
110
SM DAT0/GPB4
111
SM CLK1 /GPC 1
115
SM DAT1/GPC 2
116
SM CLK2 /GPF6 ( PU )
117
SM DAT2/GPF7 ( PU )
118
FLFRA ME#/GPG 2
10 0
FL AD0/SC E#
10 1
FL AD 1/SI
10 2
FLAD2/SO
10 3
FLAD3/GPG 6
10 4
FLCLK/SCK
10 5
( PD )FL R ST# /WU I7/TM /GPG 0
10 6
( PD )L80H LAT/G PE0
19
R153 10K_04
C 223 0.1u_16V_Y 5V_04
R360 *10K _04
WL AN _LED #
C222
*0.1u_16V_Y 5V_04
R 157 *10K_04
PCIE_ W AKE#
C20 0
1u_ 6. 3V_X5R_04
80DET#
WLAN _EN
6 -22 -3 2R 76- 0B G
6 -22 -3 2R 76- 0B 2
BAT_ VOLT
8502_C PU_FAN
C195
0.1u_16V_Y 5V_04
PC LK_KBC
R168 *0_04
C227
12p_50V_N PO_04
KBC _WR ESET#
WLAN_LED#
C219
*0.1u_16V_Y5V_04
NC 3 SH ORT
LCD_BRIGHTNESS
R158
100K_1%_04
C21 5
*10p_50V_N PO_06
KBC _BE EP
3IN1
R150 10K_04
LOW ACTIVE
SM D_BAT
MO DEL_ID
80CLK
SM C_BAT
C2 32
10u_6.3V_X5R _06
BAT_VOLT37
CC D_DE T#
BAT_ DET
C229
0.1u_16V_Y 5V_04
C208
0.1u_16V_Y5V_04
VDD 3
KBC _AVDD
VD D3
VD D3
KBC _AG ND
KBC _AGN D
VDD 3
3.3VS
SCI# 19
SWI# 16
SMI# 19
KBC _R ST# 1 9
EC MODULE CHOOSE (FOR DIFFERENCE K/B TYPE)
VCO RE_O N 16,36
CH G_EN 37
PWR _BTN # 1 6
3G_EN 24
CC D_EN 24
RSM RST# 1 6
3.3VS 2,10,11,12,13,14,15,16,17,18,19,20,21,23,24,25,26,27,29,30,31,35, 36
CPU _ FANSEN 3 0
VD D3 14, 23,25,29,31,32,37
SUS C# 16,33
ALL_ SY S_PW RG D 12,16
AC _PRESEN T 16,18
BRIG HTNESS12
SUS B# 16,23,31
SUS _PWR _ACK 1 6
TH ERM _ALER T#3
U2 8
EN25P05-50GCP
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD#
7
VD D
8
CCD_DET#24
LID_SW#12 , 3 0
WEB _WW W#30
AP_KEY #30
LPC_AD 014 , 2 4
TP_D ATA30
W EB _EM AIL#30
LPC_AD 114 , 2 4
LPC_AD 214 , 2 4
SERIR Q14 , 2 4
LPC_FRAM E#14,24
SMD _ BAT37
SMC _ BAT37
LED _P WR#29
TP_CLK30
LPC_AD 314 , 2 4
LED_BAT_CH G#29
L ED_ CAP#29
LE D _B A T_ F U LL #29
LED_NU M#29
X3
* MC -146_32.768KH z
1 4
32
KBC _M UTE#27
LED_SCROLL#29
PWR _S W#31
PC LK_K BC18
BUF_PLT_RST#4,18,23,25
AC_IN#37
LED _AC IN#29
3G_DET#24
KBC _SP I_C E#
K B C _S P I _S C L K
PM E#18
WLAN_EN23,29
KBC _S PI_SC L K_R
GA2 019
BKL_EN12
BT_EN23 , 2 9
CC D_ DET #
80D ET#23
3IN 123
80CLK23
SMD_CPU_THERM3, 1 5
3G_POW ER24
SMC_CPU_THERM3, 1 5
M E_WE# 14
TH ERM _VO L T3
AT25F512AN for 8502
MX25L3205DM2I-12G for 8518
KB C_ SPI_ CE# _ R
KB C_ SPI_SCLK_ R
U9 U28 Co-layout
KB C_ SPI_SO_R
KB C_ SPI_SI_R
J_ K B 1
* 85201-24051
24
23
22
14
12
11
21
8
20
19
6
5
18
4
17
10
9
7
3
2
1
16
15
13
U9 U28 Co-layout
R371 0_04
R375 0_04
R376 0_04
85 0 2_C PU_FAN
8502_ISO N
BT_D ET# 23,29
WL AN_DET# 2 3
8502_D D_ON _LATCH
R372 0_04
DD _O N_L ATCH 3 1
8502_WLAN _D ET#
R373 0_04
6-04-02532-470
DD _O N 3 1
6-04-26321-470
6-04-25320-A70
CPU _F AN 3 0
ISON 2 5
8502_D D_ON
8502_BT_DET#
R374 0_04
Co -la yo ut X2 , X3
CK32K
CK32KE
U9
* MX25L3205DM 2I-12G
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SC K
6
HO LD#
7
VD D
8
R171 *15mil_short_06
3.3VS
R391 47_04
VD D3
MODEL_ID
R392 15_04
6-22-32R76-0B4
R175 *0_04
H_ PEC I4,19
SM C_CPU _ TH ERM
R395 * 0_04
8518_D D_ON _LATC H
LAN _PCIE_W AKE#25
MO DE L_ ID
3 .3VV1 .0
E4120
R157 10K/ R153 X
VE R.
VO LTA GE
R 157 X / R15 3 10 K
IT E 85 02 E
E5120Q
SM D_CPU _TH ERM
SM C_CPU _TH ERM
X2
1TJS125D J4A420P_32.768KHz
1 4
32
J_KB2
85201- 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-SO11
KB-SI3
KB-SO5
KB-SI4
KB-SI7
KB-SO1
KB-SO15
KB-SI2
KB-SO9
KB-SO14
KB-SO13
KB-SO10
KB-SI0
KB-SO2
KB-SO8
KB-SO12
KB-SO3
KB-SO4
KB-SO0
KB-SI6
KB-SO7
KB-SI5
KB-SO6
KB-SI1
For 8502E
EC_VSS
R151 *10m il_short_04
RX
KBC _BEEP27
VDD 3
For 8512E
KBC_W R ESET#
R135 1K_1%_04
KBC _FLAS H
R162 4.7K_04
C201
0.1u_16V_Y 5V_04
8518_W LAN _DET#
VDD 3
?? ?
KBC_SPI_*_R = 0.1"~0.5"
Sheet 28 of 42
KBC-ITE IT8502E