Acer Extensa 900 Maintenance Manual

                                                                                     Notebook Schematic Diagrams  A-5
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 4 of 30) 

A-6   Notebook Schematic Diagrams
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 5 of 30) 

                                                                                     Notebook Schematic Diagrams  A-7
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 6 of 30) 

A-8   Notebook Schematic Diagrams
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 7 of 30)
$MD32
$MD33
$MD34
$MD35
$MD36
$MD37
$MD38
$MD39
$CAS#4
$CAS#5
2
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141 2
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42...

                                                                                     Notebook Schematic Diagrams  A-9
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 8 of 30) 

A-10   Notebook Schematic Diagrams
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 9 of 30) 

                                                                                     Notebook Schematic Diagrams  A-11
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 10 of 30) 

A-12   Notebook Schematic Diagrams
Figure A-1  Motherboard PWB Logic Diagrams (Sheet 11 of 23 ) 

                                                                                     Notebook Schematic Diagrams  A-13
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 12 of 30) 

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...