Service manual

Schematic Diagrams
B - 12 ICH4-2 (2 of 3)
B.Schematic Diagrams
ICH4-2 (2 of 3)
+3V
+3VS
+3V
+3V
+3V
+VCCRTC
+VDD5
+VCCRTC
+3V
+3V
+3V
+3VS
+3V
+3V
+3VS
+VCCP
+3VS
+3V
+3V
+3V
+3V
+3V
+3V
+3VS
+3V
+3V
AGP_BUSY#25
ICHPWROK4,11,13,21,31
PWR_BTN#20
PM_DPRSLPVR33
PM_RSMRST#13,20,32
PM_CLKRUN#20,22,24
SUSA#10,20
PM_STPCPU#10,33
PCI_STP#10
PM_THRM#3
AC_BITCLK15,21
AC_SDATAIN021
AC_SDATAIN115
AC_RST#15,21
AC_SDATOUT15,21
AC_SYNC15,21
LPC_AD018,20,37
LPC_AD118,20,37
LPC_AD218,20,37
LPC_AD318,20,37
USB_PP118
USB_PP214
USB_PP314
USB_PP415
USB_PN118
USB_PN214
USB_PN314
USB_PN415
LPC_DRQ#018,37
LPC_FRAME#18,20,37
SMI# 20
SCI# 20
SWI# 20
IDE_PDDACK# 16
LPC_PME# 20
CLK_ICH14 10
IDE_PDCS3# 16
IDE_PDA1 16
IDE_SDIOW# 16
IDE_SDA2 16
IDE_PDIOW# 16
AC_SPKR 21
IDE_SDA1 16
IDE_PIORDY 16
IDE_SIORDY 16
IDE_PDCS1# 16
IDE_SDCS3# 16
IDE_PDA0 16
IDE_SDA0 16
IDE_SDIOR# 16
IDE_SDDREQ 16
CLK_ICH48 10
IDE_SDCS1# 16
IDE_PDA2 16
IDE_PDIOR# 16
IDE_PDDREQ 16
IDE_SDDACK# 16
SUSC#20
FLASH# 11,18
PRSTEN 11,32
SUSB#4,32,34,35
USB_PP018
USB_PN018
IDE_PDD[0:15] 16
VCORE_PWGD33
PG_VGATE33
+3VS 3,8,10,11,13,15,16,17,18,20,21,25,27,28,29,31,32,33,35,37
+VCCRTC 11,13
+VCCP 3,4,6,7,13,33
+VDD5 20,34,36
+3V 3,11,13,15,17,20,22,23,24,31,32,34,35
IDE_SDD[0:15] 16
SWBKON31
SUS_ST#18,20,25,37
USB_OC3#14
BT_DETECH 15
SWBTEN32
USB_PN515
USB_PP515
USB_OC2#14
USB_OC0#18
FWH_TBL#18
USB_OC1#18
DELAY_PG_VGATE 25
SLP_S1#_D
ICH_SUSB#
AC_SPKR
AC_SDATOUT
Z1229
Z1221 Z1222 Z1223
Z1225
Z1201
PM_RI#
PM_CLKRUN#
USB_PP0
IDE_PDD13
Z1205
USB_PN1
IDE_PDD2
IDE_PDD5
RTC_VBIAS
USB_PP3
IDE_PDD8
IDE_SDD3
CLK_32X2
IDE_PDD4
IDE_PIORDY
RTC_VBIAS
Z1202
IDE_SDD6
RTC_RST#
Z1239
Z1233
IDE_PDD9
AC_SPKR
USB_OC3#
IDE_SDD1
IDE_SDD2
Z1207
IDE_PDD6
IDE_PDD10
IDE_PDD11
IDE_SDD8
IDE_PDDREQ
IDE_SIORDY
PM_SYSRST#
Z1237
IDE_SDD13
IDE_SDD14
PM_RI#
USB_PP1
IDE_PDD3
IDE_PDD7
IDE_SDD4
IDE_SDD5
IDE_SDD7
IDE_SDD11
PM_CLKRUN#
USB_PN3
IDE_PDD1
CLK_32X1
ICH_SUSB#
USB_PP2
IDE_PDD12
IDE_SDDREQ
USB_PN0
Z1217
PM_SYSRST#
USB_PN4
Z1213
IDE_PDD14
IDE_SDD15
AGP_BUSY#
AC_SDATOUT
USB_PP4
USB_OC0#
IDE_SDD0
RTC_RST#
USB_PN2
IDE_PDD0
IDE_PDD15
IDE_SDD12
Z1211
IDE_PIORDY
IDE_SIORDY
IDE_PDDREQ
IDE_SDDREQ
SUSC#
Z1206
DELAY_PG_VGATE
Z1232
Z1231
AGP_BUSY#
BT_DETECH
PRSTENZ1236
Z1238
USB_OC5#
PM_RSMRST#
ICH_SUSB#
RTC_VBIAS
CLK_32X1
CLK_32X2
Z1204
IDE_PDD[0:15]
SWBTEN
+VCCP
+3V
+3VS
+VDD5
+VCCRTC
Z1230
IDE_SDD9
IDE_SDD10
IDE_SDD[0:15]
Z1203
Z1208
Z1209
Z1210
Z1212
Z1218
Z1219
Z1214
Z1215
Z1216
Z1220
Z1226
SWBKON
Z1228
Z1227
USB_PP5
USB_PN5
Z1240
USB_OC1#
USB_OC2#
SUSC#
SUSB#
SUSA#
Z1234
Z1235
Z1224
DELAY_PG_VGATE
T82
T
T84
T
T83
T
R122 0(0402)
R170 10K(0402)
T
T
T33
T
T
JBAT1
CON_BAT
1
2
1
2
D36
RB751V
A C
C688
.1u(0402)
R482 10K(0402)
R163 4.7K(0402)
R489
10K(0402)
J6
JOPEN
21
R478 10K(0402)
C697
.1u(0402)
R164 10K(0402)
R481 *10K(0402)
R176 33(0402)
T
R223 0(0402)
R438 0(0402)
RP122
8P4RX10K
81 72 6 5
3 4
R245 68
R414 *1K(0402)
R488 0(0402)
R156 10K(0402)
R174 *10K(0402)
R475
10K(0402)
R177 *1K(0402)
R169 5.6K
R415 22(0402)
R130
10K(0402)
R480 10K(0402)
R477 10K(0402)
U30
TC7SZ08
1
2
4
5
3
U12
*TC7SZ08
1
2
4
5
3
R121
100K(0402)
Y2
32.768KHZ
1
3
2
4
C707
12PF
R117
2K_1%
ICH4-M PART B Power Management
IST
AC'97 I/F
LPC I/F USB I/F GPIO
Unmaxed GPIO
IDE I/F
Clocks
Misc
UB2B
ICH4-M
R2
Y3
AB2
T3
AC2
V20
AA1
Y1
AB6
AA6
W18
Y4
Y2
AA2
W19
Y21
AA4
AB3
V1
J21
Y20
V19
B8
C13
D13
A13
B13
D9
C9
T2
R4
T4
U2
U3
U4
T5
C20
A21
C18
A19
C16
A17
D20
B21
D18
B19
D16
B17
B15
C14
A15
B14
A14
D14
A23
B23
J20
G22
F20
G20
F21
H20
F23
H22
G23
H21
F22
E23
R3
V4
V5
W3
V2
W1
W4
Y13
AB14
AB21
AC22
AA13
AB13
W13
AA20
AC20
AC21
AB11
AC11
Y10
AA10
AA7
AB8
Y8
AA8
AB9
Y9
AC9
W9
AB10
W10
W11
Y11
W17
AB17
W16
AC16
W15
AB15
W14
AA14
Y14
AC15
AA15
Y15
AB16
Y16
AA17
Y17
Y12
AB19
Y18
AB18
AA11
AC12
W12
AA18
AB12
AC19
J23
F19
W7
AC7
AC6
Y6
H23
W20
PM_AGPBUSY#/GPIO6
PM_SYSRST#
PM_BATLOW#
PM_C3_STAT#/GPIO21
PM_CLKRUN#/GPIO24
PM_DPRSLPVR
PM_PWRBTN#
PM_RI#
PM_PWROK
PM_RSMRST#
PM_SLP_S1#/GPIO19
PM_SLP_S3#
PM_SLP_S4#
PM_SLP_S5#
PM_STPCPU#/GPIO20
PM_STPPCI#/GPIO18
PM_SUS_CLK
PM_SUS_STAT#/LPCPD#
PM_THRM#
PM_GMUXSEL/GPIO23
PM_CPUPERF#/GPIO22
PM_VGATE/VRMPWRGD
AC_BITCLK
AC_RST#
AC_SDATAIN0
AC_SDATAIN1
AC_SDATAIN2
AC_SDATAOUT
AC_SYNC
LPC_AD0
LPC_AD1
LPC_AD2
LPC_AD3
LPC_DRQ0#
LPC_DRQ1#
LPC_FRAME#
USB_PP0
USB_PP1
USB_PP2
USB_PP3
USB_PP4
USB_PP5
USB_PN0#
USB_PN1#
USB_PN2#
USB_PN3#
USB_PN4#
USB_PN5#
USB_OC0#
USB_OC1#
USB_OC2#
USB_OC3#
USB_OC4#
USB_OC5#
USB_RBIAS
USB_RBIAS#
GPIO32
GPIO33
GPIO34
GPIO35
GPIO36
GPIO37
GPIO38
GPIO39
GPIO40
GPIO41
GPIO42
GPIO43
GPIO_7
GPIO_8
GPIO_12
GPIO_13
GPIO_25
GPIO_27
GPIO_28
IDE_PDCS1#
IDE_PDCS3#
IDE_SDCS1#
IDE_SDCS3#
IDE_PDA0
IDE_PDA1
IDE_PDA2
IDE_SDA0
IDE_SDA1
IDE_SDA2
IDE_PDD0
IDE_PDD1
IDE_PDD2
IDE_PDD3
IDE_PDD4
IDE_PDD5
IDE_PDD6
IDE_PDD7
IDE_PDD8
IDE_PDD9
IDE_PDD10
IDE_PDD11
IDE_PDD12
IDE_PDD13
IDE_PDD14
IDE_PDD15
IDE_SDD0
IDE_SDD1
IDE_SDD2
IDE_SDD3
IDE_SDD4
IDE_SDD5
IDE_SDD6
IDE_SDD7
IDE_SDD8
IDE_SDD9
IDE_SDD10
IDE_SDD11
IDE_SDD12
IDE_SDD13
IDE_SDD14
IDE_SDD15
IDE_PDDACK#
IDE_SDDACK#
IDE_SDIOR#
IDE_SDDREQ
IDE_PDDREQ
IDE_PDIOR#
IDE_PDIOW#
IDE_SDIOW#
IDE_PIORDY
IDE_SIORDY
CLK_14
CLK_48
RTCRST#
CLK_RTCX1
CLK_RTCX2
CLK_VBIAS
SPKR
THRMTRIP#
R474
15K
R120
1K(0402)
C732
1U(0805)
C254
1u
C261
.1u(0402)
C727
12PF
T
T
D43 1N4148A C
R457 10M
J5
JOPEN
21
D41 1N4148A C
R455
1K(0402)
T
R137 5.6K
U11
LVM331
1
3
4
52
+
-
O
VCCGND
U29
TC7SZ08
1
2
4
5
3
R458 10M
R142 4.7K(0402)
R198
2K_1%
R205
750_1%
T
Q7
2N3906
B
E
C
T
D46 1N4148A C
R209
560
T
T
D37
1N4148
A C
T
C99
1u
R193 1K(0402)
R479 10K(0402)
T
C341
0.047u
R237 0(0402)
R216
10K(0402)
C703
.1u(0402)
R195
1K(0402)
R160 10K(0402)
RP121 8P4RX10K81
72
6
5
3
4
RTC CLEAR
7/01
7/01
8/29
8/29
Sheet 11 of 36
ICH4-2
(2 of 3)