Acer Extensa 900 Maintenance Manual
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![Page 150
A-14 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 13 of 30)
4,14,15,17,19,20,25
20,23
1
2
R101
DUMMY-R3
SD[0..7]
@IRQ8# IRQ#8SD7
SD1 SD2 SD3 SD4 SD5 SD6
SD0SD[0..7]
U40 PIN 22
4 23
19
19VCC 24
CS$ 13
AS 14R/W$ 15
DS 17RST$ 18RCL$ 21
EXTRAM 22
BC 20
X1 2
X2 3AD711
AD610
AD59
AD48
AD37
AD26
AD15
AD04INT$19
SQW23
MOT1
VSS12
VSS16
U40
BQ3285E
1
2R105
10KR3
2 1
G1
GAP-OPEN
1 2RX13
DUMMY-R3
CX21
SCD1U
PWRGOOD#RTCASRTCRWRTCDSPWRGOOD#
RTCAS
RTCRW
RTCDS...](http://img.usermanuals.tech/thumb/5/59732/w64_acer-extensa-900-maintenance-manual-149.png "Page 150
A-14 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 13 of 30)
4,14,15,17,19,20,25
20,23
1
2
R101
DUMMY-R3
SD[0..7]
@IRQ8# IRQ#8SD7
SD1 SD2 SD3 SD4 SD5 SD6
SD0SD[0..7]
U40 PIN 22
4 23
19
19VCC 24
CS$ 13
AS 14R/W$ 15
DS 17RST$ 18RCL$ 21
EXTRAM 22
BC 20
X1 2
X2 3AD711
AD610
AD59
AD48
AD37
AD26
AD15
AD04INT$19
SQW23
MOT1
VSS12
VSS16
U40
BQ3285E
1
2R105
10KR3
2 1
G1
GAP-OPEN
1 2RX13
DUMMY-R3
CX21
SCD1U
PWRGOOD#RTCASRTCRWRTCDSPWRGOOD#
RTCAS
RTCRW
RTCDS...")
![Page 152
A-16 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 15 of 30)
16,22
16,22
16,22
16,22
16,22
16,22
16,21
ACK#BUSYPESLCT
SLCTIN#INIT#ERROR# 12345 6 7 8
RP11
SRN33
12345 6 7 8RP12
SRN33
1
2
3
456 7 8
RP9
SRN33
1
2
3
456 7
8
RP10
SRN33
1 2R42
33R3
PD[0..7]
I
R
Q
3I
R
Q
4I
R
Q
5I
R
Q
6I
R
Q
7P
D
0P
D
1P
D
2P
D
3P
D
4P
D
5P
D
6P
D
7SUPER I/O CONTROLLER
416,21,22
16,22IRQ[3..7]STROB#
+5V
NOT INSTALLED44
4,19
44
8 12R52
100R3
C118
SC47P...](http://img.usermanuals.tech/thumb/5/59732/w64_acer-extensa-900-maintenance-manual-151.png "Page 152
A-16 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 15 of 30)
16,22
16,22
16,22
16,22
16,22
16,22
16,21
ACK#BUSYPESLCT
SLCTIN#INIT#ERROR# 12345 6 7 8
RP11
SRN33
12345 6 7 8RP12
SRN33
1
2
3
456 7 8
RP9
SRN33
1
2
3
456 7
8
RP10
SRN33
1 2R42
33R3
PD[0..7]
I
R
Q
3I
R
Q
4I
R
Q
5I
R
Q
6I
R
Q
7P
D
0P
D
1P
D
2P
D
3P
D
4P
D
5P
D
6P
D
7SUPER I/O CONTROLLER
416,21,22
16,22IRQ[3..7]STROB#
+5V
NOT INSTALLED44
4,19
44
8 12R52
100R3
C118
SC47P...")
Notebook Schematic Diagrams A-15
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 14 of 30)
PIN1,4ON
OFFPASSWORD ENABLE
PASSWORD DISABLE
MATRIX1 KB TYPE
0
1TYPE 0
TYPE 1 19
10 1
2 4
3
SW1
LSM702
1
2R87
10KR3
1
2R84
100KR3
HOTKEY#3.3V/5V#
+5VKBC_5V
D
Q
2
1D
Q
1
2D
Q
0
3W
R
#
4R
D
#
5C
S
#
6A
0
7P
5
3
/
S
R
D
Y
#
8P
5
2
/
S
C
L
K
9P
5
1
/
T
X
D
1
0P
5
0
/
R
X
D
1
1P
4
7
/
I
N
T
4
1
2P
4
6
/
I
N
T
3
1
3P
4
5
/
I
B
F
0
#
/
O
B
F
1
1
4P
4
4
/
O
B
F
0
1
5P
4
3
/
I
N
T
2
1
6 P37 49
P36 50
P35 51
P34 52
P33 53
P32 54
P31 55
P30 56
VCC 57
P61/CNTR0 58
P60/INT5/OBF2 59
DQ7 60
DQ6 61
DQ5 62
DQ4 63
DQ3 64
P42/INT117 CNVSS18
RESET#19 P41/INT020 P4021 XIN22 XOUT23 VSS24 P2725 P2626 P2527 P2428 P2329 P2230 P2131 P2032 P
1
73
3
P
1
63
4
P
1
53
5
P
1
43
6
P
1
33
7
P
1
23
8
P
1
13
9
P
1
04
0
P
0
74
1
P
0
64
2
P
0
54
3
P
0
44
4
P
0
34
5
P
0
24
6
P
0
14
7
P
0
04
8
U28
M38813
1
2
RY1
47KR3
K
C
O
L
1K
C
O
L
2K
C
O
L
3K
C
O
L
4K
C
O
L
5K
C
O
L
6K
C
O
L
7K
C
O
L
8K
C
O
L
9K
C
O
L
1
0K
C
O
L
1
1K
C
O
L
1
2K
C
O
L
1
3K
C
O
L
1
4K
C
O
L
1
5K
C
O
L
1
6
HOTKEY#
KBC_5V
M+5V
SC:ADD RY1 PULLED-UP
KEYBOARD CONTROLLER
4,13,15,17,19,20,25C153
SCD1U
1 2
L12
SCHOKE-D
C154
SC1KP
SD[0..7]
KROW6 KROW7 KROW8 SD[0..7]
KBC_5VM+5V
4 4
4 20 26
26
13IOW#IOR#SA2@KBCS#
TDATATCLK
ENEXTCMOSSD3 SD4
SD5
SD6
SD7
SD0 SD1 SD2KROW1 KROW2 KROW3 KROW4
KROW5
SA2 IOR# IOW# TDATA
TCLK
@KBCS#
1
2RX09
20KR3
CLLED#NLLED# CLLED#
NLLED#
IRQ1
IRQ12 B_SMB_DATA
B_SMB_CLK
KBCLK KBDATA
+5V
M38813
SB: ADD 20K PULL-UP TO @SUSRST#
SB: ADD IRQ1 PULL-UP
4
410,11,15
21,2621,26 28
28
1
32X2
RESON-8MHZ
1
2R83
DUMMY-R3
1
2
RX08
20KR3
12R79
DUMMY-R3
12R76
DUMMY-R3
IRQ1IRQ12
@SUSRST#
KBCLK
KBDATA
SUSPEND#
KBC_5V
M+5V
20
27
27
21
21 1 21
4
71
3
U25A
SOHC4066
11 101
4
71
2
U25B
SOHC4066
1 2
RX26
470R3
12
RX27
470R3
SMB1_DATA
SMB1_CLK
SMB2_DATASMB2_CLK
+5VSBSB: M+5V CHANGED TO +5VSB
SMB_SELB_SMB_DATA
B_SMB_CLK
23
21,26
21,26
1
3
5
7 2
4
6
8
CN5
ELCO-CONN8 KROW1
KROW3
KROW5
KROW7KROW2
KROW4
KROW6
KROW8
ANYKEYEN_213RIPS2DATAPS2CLKANYKEY
EN_213RI
PS2DATA
PS2CLK
1
2
3
4
5 67 8
9
10
RP21
SRP10K
KROW4
KROW1 KROW2
KROW3
KROW5 KROW6 KROW7
KROW8
KBC_5VKBC_5V
SMB_SEL=1 : SELECT SHIVA BATTERY
SMB_SEL=0 : SELECT UMA BATTERY 1
2R68
100KR3
1312 1
4
7
U61F
SSHC14+5V 4 31
4
75U25C
SOHC4066
8 91
4
76
U25D
SOHC4066
19
KCOL2
KCOL4
KCOL6
KCOL8
KCOL10
KCOL12
KCOL13
KCOL15 1
3
5
7
9
11
13 2
4
6
8
10
12
14
15
1716
18CN14
ELCO-CONN18 KCOL1
KCOL5
KCOL7
KCOL9 KCOL3
KCOL11
KCOL14
KCOL16 KCOL5
A-16 Notebook Schematic Diagrams
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 15 of 30)
16,22
16,22
16,22
16,22
16,22
16,22
16,21
ACK#BUSYPESLCT
SLCTIN#INIT#ERROR# 12345 6 7 8
RP11
SRN33
12345 6 7 8RP12
SRN33
1
2
3
456 7 8
RP9
SRN33
1
2
3
456 7
8
RP10
SRN33
1 2R42
33R3
PD[0..7]
I
R
Q
3I
R
Q
4I
R
Q
5I
R
Q
6I
R
Q
7P
D
0P
D
1P
D
2P
D
3P
D
4P
D
5P
D
6P
D
7SUPER I/O CONTROLLER
416,21,22
16,22IRQ[3..7]STROB#
+5V
NOT INSTALLED44
4,19
44
8 12R52
100R3
C118
SC47P
C112
SCD1U
C125
SC39P 1
2
R57
47R3
RSTDRV
0WS#DRQ2DACK#2TCIRSL1$SIO_24M$SIO_24M $SIO_24M
CS1/ZWS 1
DRQ2 2DACK2 3
TC 4
X1 5
IRSL1 6
VSS 7
D7 8
D6 9
D5 10
D4 11
D3 12
D2 13
D1 14
D0 15
WR 16RD 17
AEN 18
A9 19
A8 20
A7 21
A6 22
A5 23
A4 24
A3 25
A
2
2
6A
1
2
7A
0
2
8A
1
0
2
9
D
S
K
C
H
G
3
0D
R
Q
1
3
1H
D
S
E
L
3
2R
D
A
T
A
3
3W
P
3
4T
R
K
0
3
5W
G
A
T
E
3
6W
D
A
T
A
3
7S
T
E
P
3
8D
I
R
3
9V
S
S
4
0
M
T
R
1
/
I
D
L
E
/
I
R
S
L
2
4
1
D
R
0
4
2D
R
1
/
P
D
4
3M
T
R
0
4
4I
N
D
E
X
4
5D
E
N
S
E
L
/
A
D
R
A
T
E
1
4
6
D
R
V
2
/
P
N
F
/
D
R
2
3
/
S
I
R
Q
1
3
/
I
R
S
L
2
4
7V
D
D
4
8D
R
A
T
E
1
/
M
S
E
N
1
/
C
S
0
/
S
I
R
Q
I
2
/
D
A
C
K
3
4
9D
R
A
T
E
0
/
M
S
E
N
0
5
0IOCHRDY51
DACK152DACK053 DRQ054 IRQ955 IRQ1056 IRQ1157 IRQ15/SIRQI1/DRQ358 VSS59
RI2/A1160DTR2/A1261CTS2/A1362 SOUT2/BOUT2/CFG0/IRTX63RTS2/A1464 SIN2/IRRX165DSR2/IRQ12/IRRX2/IRSL066DCD2/A1567RI168DTR169CTS170 SOUT1/BOUT1/BADDR171RTS1/BADDR072 SIN173DSR174DCD175
A
F
D
/
D
S
T
R
B
/
D
E
N
S
E
L7
6E
R
R
/
H
D
S
E
L7
7I
N
I
T
/
D
I
R7
8S
L
I
N
/
S
T
E
P
/
A
S
T
R
B7
9S
L
C
T
/
W
G
A
T
E8
0P
E
/
W
D
A
T
A8
1B
U
S
Y
/
W
A
I
T
/
M
T
R
18
2A
C
K
/
D
R
18
3
P
D
7
/
M
S
E
N
18
4
P
D
6
/
D
R
A
T
E
08
5
P
D
5
/
M
S
E
N
08
6
P
D
4
/
D
S
K
C
H
G8
7
V
S
S8
8P
D
3
/
R
D
A
T
A8
9P
D
2
/
W
P9
0P
D
1
/
T
R
K
09
1P
D
0
/
I
N
D
E
X9
2S
T
B
/
W
R
I
T
E9
3
I
R
Q
79
4
I
R
Q
69
5
I
R
Q
5
/
A
D
R
A
T
E
09
6
V
D
D9
7
I
R
Q
49
8
I
R
Q
39
9
M
R1
0
0U23
PC87338VJG
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
PC8733844 4 4,19
4,19 16
16 16
1620 20
21MR3
IRQ11IRQ10IRQ9DRQ0
AUTOFD#
IRRX1IRRX2
IRTX
DRQ3SA[11..15]
DCD1#
RI1#
SA15
SA14
SA13
SA12
SA11 IRTX SOUT1 RTS1# SIN1
DSR1#
RI1# CTS1#
DTR1#
4
4 4
4
4
16
2222
22
C151
SCD1U
C159
SC1KP
C155
SC10U16V
DACK#0DACK#1IOCHRDY#
+5V
4,19
2222 22 2222 22
DACK#3PNF
DR0#IRSL2DRQ1
RPMINDEX#MTR0#
WGATE#TRK0#WRTPRT#RDATA#HDSELDSKCHG# SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
SA10
MTR0#
4 4
4
4 4,13,14,17,19,20,25
SD[0..7]
IOW#IOR#AEN
SA[0..10]
22 22 22FDIRSTEP#WDATA#
SB: CHANGE MAX213 TO MAX3243
16,21
16,21
16,21
16,21
16,21
16
16,21
16,21
C81
SCD1U
C82
SCD1U
C1+ 28
C1- 24
C2+ 1
C2- 2
T1IN 14
T2IN 13
T3IN 12
R2OUTB 20
R1OUT 19
R2OUT 18
R3OUT 17
R4OUT 16
R5OUT 15
FORCEON 23
FORCEOFF# 22INVALID# 21V+27
V- 3
T1OUT 9
T2OUT10
T3OUT11
R1IN 4
R2IN 5
R3IN 6
R4IN 7
R5IN 8
GND25 VCC26
U7
MAX3243
PSOUT1PRTS1#PDTR1#PSIN1PDSR1#PCTS1#PRI1#PDCD1#
M+5V
14 20,23
20
C61
SCD1U
C62
SCD1U
SUSPEND#
@RI1#@DCD1#SOUT1
RTS1#
SIN1
DSR1#
CTS1# DTR1#
1RX35
CX13
SCD1U
Notebook Schematic Diagrams A-17 Figure A-1 Notebook Main Board Logic Diagrams (Sheet 16 of 30)
A-18 Notebook Schematic Diagrams Figure A-1 Notebook Main Board Logic Diagrams (Sheet 17 of 30) )
Notebook Schematic Diagrams A-19 Figure A-1 Notebook Main Board Logic Diagrams (Sheet 18 of 30)
A-20 Notebook Schematic Diagrams Figure A-1 Notebook Main Board Logic Diagrams (Sheet 19 of 30) )
Notebook Schematic Diagrams A-21 Figure A-1 Notebook Main Board Logic Diagrams (Sheet 20 of 30)
A-22 Notebook Schematic Diagrams Figure A-1 Notebook Main Board Logic Diagrams (Sheet 21 of 30)
Notebook Schematic Diagrams A-23 Figure A-1 Notebook Main Board Logic Diagrams (Sheet 22 of 30)
A-24 Notebook Schematic Diagrams Figure A-1 Notebook Main Board Logic Diagrams (Sheet 23 of 30)