Acer Extensa 900 Maintenance Manual

                                                                                     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...

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-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)