Service manual

Schematic Diagrams
KBC-ITE IT8502E B - 23
B.Schematic Diagrams
KBC-ITE IT8502E
Sheet 22 of 37
KBC-ITE IT8502E
KBC_AGN D
KBC_AGND
KBC_AVDD
VDD3
VDD3
VDD3
VDD3
3.3 VS
VDD3 VDD3
VD D3
VDD3
VD D3
VDD3
VDD3
VDD3
VDD3
VDD3 1 2,2 4, 25, 26, 27 ,30
3. 3V S 5 ,8, 9, 10, 11, 12 ,13 ,14 ,1 5,1 7,1 8, 19, 20, 21, 23 ,24 ,25 ,2 9
BAT_VO LT30
CH G_C UR30
BAT_D ET30
CPU_ FAN24
LPC_AD312,19
LPC_AD212,19
LPC_AD112,19
LPC_AD012,19
BUF_PLT_RST#13,19,20,23
SERIRQ14,19
LPC_FRAME#12 ,19
PCLK_KBC17
KB C _M U TE #21
SMD _BAT30
SMC _BAT30
LED_CAP#23
LED_ SCRO LL#23
KBC_BEEP21
LED _NUM#23
TP _ C L K24
TP_DATA24
LED_ BAT_CHG #24
LED_BAT_FULL#24
LE D_P WR #24
LED _A CIN #24
AC _ I N #30
PW R_SW#25
ENTERKEY#18
POPMENU #18
LID_SW#18,23
THERM_ALERT#2
CHG _EN 3 0
SUSB# 16, 19, 25, 27
SUSC# 14
SWI# 1 4
V COR E_ ON 29
PWR_ BTN# 1 4
RSMR ST# 14,16
CPU_ FAN SEN 2 4
SCI# 14
SMI# 14
WLAN _DET# 19
BT_D ET# 23
DD_ ON 2 5, 26
CCD _EN 2 3CCD_ DET#23
3G_DET#23 TOTAL_CUR30
BR IGH TNESS18
3G_ E N 2 3, 24
SMD_CPU_ THERM2
SMC_CPU_ THERM2
CL_ P W ROK 5, 14 , 16 , 18
WLAN_PWR19
GA2012
CIR _RX 18
L_BK_C TR5
PME#13
BT _ E N23,24
B KL_E N18
WLAN_EN19,24
P M_C LK RUN # 1 4, 19
S M C _ MD MS I C24
SMD_MEMSI C24
DOC K_ON 2 3
HOL D _S W# 23
ICH _KBC_R ST# 12AC_PRESENT 14
WDT_EN 1 9
3G_PWR23
SUS_PW R_ACK14
3IN1 19
80CLK 19
80DET# 19
LAN_DSM# 23
TOTAL _CUR _R
C HG_CUR_ R
BAT_VOLT
CHG _CU R
BAT_VOLT_R
TOT A L_ C U R
P CLK _K BC
KBC _FLASH
KBC _WRESET#
3IN1
KBC_SPI _CE#
KBC_SPI_SI _R
KBC_SPI _SCLK
KBC_SPI_SO_R
KBC_SPI_CE#_R
KBC_SPI _SO
KBC_SPI_SC LK_R
KBC_SPI _SI
C PU_FAN_R
BLK_EN
BT_EN
LPC_ AD 2
LPC_ AD 1
LPC_ AD 3
LPC_ AD 0
BUF_PLT_RST#
LPC_FR AME#
SER IRQ
PCLK_KBC
KB-SI3
KB-SI2
KB-SO5
KB-SI1
KB-SO3
KB-SO4
KB-SO11
KB-SI6
KB-SI4
KB-SO8
KB-SO7
KB-SO6
KB-SO14
KB-SO2
KB-SO15
KB-SI0
KB-SI5
KB-SO12
KB-SO1
KB-SO10
KB-SO0
KB-SI7
KB-SO9
KB-SO13
L CD_BR IGH TNESS
KBC_SPI _SCLK
KBC_SPI _CE#
KBC_SPI _SI
KBC_SPI _SO
KBC _WRESET#
KBC _MU TE#
SYS_FAN_R
WLAN_EN
WLAN_PWR
CPU_ FAN_ R
TOT A L_C UR _ R
BAT_DET
BAT_VOLT_R
CH G _C U R_R
S MD _ ME MS I C
SMD_BAT
SMD_CPU_THERM
SMC_CPU_THERM
S MC _ MD MS I C
KBC _BEEP
LED_ NUM#
LCD _BRI GHTNESS
LED_ CAP#
LED_ SC ROL L#
TP_C LK
TP _D AT A
WDT _E N
LED_BAT_FULL#
LED_ BAT_CH G#
LED_ PW R#
LED_ AC IN #
AC_I N#
PWR_SW#
LI D_S W#
TH E R M_R S T #
THERM_ALERT#
80C LK
3I N1
80D E T#
DO CK_ON
CH G_EN
SUSB#
SUSC#
SWI#
HO LD_ SW#
KBC_R ST#
PWR_BTN#
CL _PWR OK
SCI#
SMI #
VCORE_ON
RSM RST#
AC_PRESENT
WD T_E N
WL AN_D ET#
BT_DET#
DD _ON
CC D_ENCCD _DET#
MOD EL _ I D
3G_ DE T# TOTAL _CUR
C CD_ DET#
3G_DET#
3G_ P WR
3G_EN
WD_ DISABLE
MODEL_ID
BAT_VOLT
SMD _BAT
C HG_CUR
H8_GA20
BAT_DET
WD _DISABL E
PME#
CI R_I N
H8_GA20
CI R_ IN
L_BK_C TR
R_ LAN_D SM #
SMC_BAT
SMC _BAT
KBC_RST#
POPMENU#
ENTERKEY#
SMC_CPU_THERM
SMD_CPU_THERM
KBC_MUTE#
SUS_PWR_ ACK
80DET#
80CLK
3IN1
R _LAN_ DSM#
LAN_ DSM#
CPU _FANSEN
LI D _S W #
R28 7 10 K _04
U1 8
A A T3 5 1 0 I G V - 2. 9 3- C -C - T1
3
5
2
1
4
MR#
VCC
GND
RESET#
WDI
R2 77 1 00_ 1% _04
C 477
0 . 1u _1 6V _04
R1 09 100 _04
C 479 * 1u_ 6. 3 V _04
D3
BAV99
A
C
AC
R251 15_04
R2 67 4 . 7K _ 04
R281
100 K _04
R278 10K_04
D29
BAV99
A
C
AC
C1 89
0. 1u_ 1 6V_ 04
R27 1 10 K _04
U6
SST25VF080B
1
2
3
4
5
6
7
8
CE#
SO
WP#
VS S
SI
SCK
HO LD#
VDD
D27
BAV99
A
C
AC
R27 4 10 K _04
NC 2 SHO RT
21
R 137 * 1 0M_ 04
R2 73 10 K _04
D2
BAV99
A
C
AC
C 478 1u_ 6. 3V _04
C242
15p_50V_04
C2 01 0 . 1 u_1 0V _X7 R_0 4
Q1 8
2N7002W
G
DS
R145 10_04
C48 3 0. 1 u_1 0V _X 7R_ 04
R270 47_04
C495
0. 1u_ 1 6V_0 4
R2 72 1 00_ 1% _04
R250 15_04
R141 10_04
C 211 * 10p _50 V _04
C2 02
0. 1u_ 1 6 V_ 04
C489 30p_50V_04
R 135 * 0_0 4
R2 76 1 00_ 1% _04
C 482 * 1u_ 6. 3 V _04
C243
1 5p_ 5 0V_ 04
D1
BAV99
A
C
AC
C491 30p_50V_04
R1 2 4 .7 K_ 04
R269 47_04
X4 3 2 . 7 6 8K H z
14
3 2
C2 17
0. 1u_ 1 0 V_ X7R _04
R1 24 * 10 _04
R275 *10K_04
C493 30p_50V_04
R249 1K_1%_04
R1 3 4 .7 K_ 04
R2 83
10 0K _04
L7
H C B16 0 8KF -1 21T 25
C1 98
0 . 1u _16 V _04
C204
0 . 1u _16 V _04
C492 30p_50V_04
D30
BAV99
A
C
AC
C4 75
10u_10V_08
R284 10K_04
C462
0. 1u_ 1 0V_ X7R _ 04
C2 08 *0.1u_1 0V_X7R_ 04
R 279
10K_04
R1 15 120 K _1% _0 4
J_KB1
852 0 2- 240 51
24
23
22
14
12
11
21
8
20
19
6
5
18
4
17
10
9
7
3
2
1
16
15
13
J_H 8DBG1
*8 52 04- 050 01
1
2
3
4
5
C484
1u_ 6 . 3V _04
R144
10 K _04
R265 *10K_04
K/B MATRIX
FLASH
LPC
SMBUS
PS/2
PWM
UART
DAC
CLOCK
IT8502E
CIR
ADC
WAKE UP
PWM/COUNTER
LPC/WAKE UP
EXT GPIO
GP INTERRUPT
WAKE UP
GPIO
U5
IT8502E
14
13
10
9
8
7
6
17
5
15
23
126
4
58
59
60
61
62
63
64
65
36
37
38
39
40
41
42
43
44
45
46
51
52
53
54
55
11 26 50 92 11 4 127 121 3 74
85
86
87
120
124
22
35
125
18
21
112
109
108
123
88
89
90
47
48
24
25
28
29
30
31
32
34
66
67
68
69
70
71
72
73
1 12 27 49 12 2 113 75
2
128
79
78
77
76
83
84
82
33
20
91
81
80
16
119
56
57
93
94
95
96
97
98
99
107
110
111
115
116
117
118
100
101
102
103
104
105
106
19
WRST #
LPCC LK
LAD0
LAD1
LAD2
LAD3
LF RA ME #
( PD )LPCPD#/WU I6/ GPE6
SER IRQ
ECSMI#/GPD 4( PU )
ECSCI#/GPD 3( PU )
GA20/GPB5
KBR ST#/GPB6( PU )
KSI0/ STB#
KSI1/ AFD #
KSI2/I NIT#
KSI3/ SLIN#
KS I 4
KS I 5
KS I 6
KS I 7
KSO0/PD 0
KSO1/PD 1
KSO2/PD 2
KSO3/PD 3
KSO4/PD 4
KSO5/PD 5
KSO6/PD 6
KSO7/PD 7
KSO8/ACK#
KSO9/BUSY
KSO1 0/PE
KSO1 1/ERR#
KS O12 /SLC T
KSO1 3
KSO1 4
KSO1 5
VCC
VS T B Y VSTBY VSTBY VSTBY VSTBY VSTBY
VBAT
AV C C
PS2CLK0/GPF0( PU )
PS2DAT0/GPF1( PU )
PS2CLK1/GPF2( PU )
( PD ) TMRI 0/ WUI 2/G PC 4
( PD ) TMRI 1/ WUI 3/G PC 6
LPCR ST #/ WUI4 /G PD 2( P U )
( PD )WUI5/ GPE5
PWRSW/ GPE4( PU )
RI 1#/ WUI 0/G PD 0( PU )
RI 2#/ WUI 1/G PD 1( PU )
( PD ) RIN G#/ PW RF AIL# /LP C RST#/ GP B7
TXD/G PB1( PU )
RXD /GPB0( PU )
( PD )C TX/ GPB2
PS2DAT1/GPF3( PU )
PS2CLK2/GPF4( PU )
PS2DAT2/GPF5( PU )
( PD )TACH 0/GPD 6
( PD )TACH 1/GPD 7
PWM0/GPA0( PU )
PWM1/GPA1( PU )
PWM2/GPA2( PU )
PWM3/GPA3( PU )
PWM4/GPA4( PU )
PWM5/GPA5( PU )
PWM6/GPA6( PU )
PWM7/GPA7( PU )
ADC0 /GPI 0
ADC1 /GPI 1
ADC2 /GPI 2
ADC3 /GPI 3
ADC4 /GPI 4
ADC5 /GPI 5
ADC6 /GPI 6
ADC7 /GPI 7
VS S VSS VSS VSS VSS VSS AVSS
CK32KE
CK32K
DAC3 /GPJ3
DAC2 /GPJ2
DAC1 /GPJ1
DAC0 /GPJ0
( PD )EGCS#/GPE2
( PD )EGCLK/ GPE3
( PD )EGAD/ GP E1
GI NT/ GPD5( PU )
L8 0LL AT/GPE7( PU )
VSS
DAC5 /GPJ5
DAC4 /GPJ4
PWUREQ#/GPC 7( PU )
( PD )CRX/GPC0
( PD )KSO16/G PC3
( PD )KSO17/G PC5
( PD ) ID 0/G PH 0
( PD ) ID 1/G PH 1
( PD ) ID 2/G PH 2
( PD ) ID 3/G PH 3
( PD ) ID 4/G PH 4
( PD ) ID 5/G PH 5
( PD ) ID 6/G PH 6
( PD ) ID 7/G PG 1
SMCLK0/GPB3
SMDAT0 /GPB4
SMCLK1/GPC 1
SMDAT1 /GPC 2
SMCLK2/GPF6( PU )
SMDAT2 /GPF7( PU )
FLFRAME#/GPG2
FLAD0/SCE#
FLAD1/SI
FLAD2 /SO
FLAD3/GPG6
FLCLK/SCK
( PD )FLRST#/WUI7/TM/GPG0
( PD )L 80 HLA T/ GP E0
R125 *0_04
D28
*BAV99
A
C
AC
R1 29 0 _08
C1 93
0. 1u _16 V_ 04
R11 8 10 K _04
R1 1 1 0K_04
D9
* S CS 75 1V -4 0
AC
D31
SCS751 V-40
A C
R 266 0_0 4
R14 2 4. 7K _0 4
R14 3 4. 7K _0 4
JO PEN 3
*OPEN_ 35mil
8Mbit
KBC_SPI_*_R = 0.1"~0.5"
J_K B1
124
VE R. MOD EL_I D
3 .3VV1 .0
RX
VOLT AGE
TN120T
HIG H
LOW ACTIVE
NEAR B ATTERY CONNE CT
6-19-31001-164-1
6-20-94A90-124
6- 03 -0 8502 - 0P0
6-03-35102-0D0
6-15-27002-7B5
6-06-00099-011
6-06-75140-061
6 -04 - 2508 0 -A7 0
IT8 512 E/EX -- -0 _04 OHM
C48 3 IT8502E -J
IT8 502 E-J-- - -0. 1U_1 6V_ 04
Co- lay out
R12 5 I T8512E/ EX
Debug Port