Theory of Operation
4-21
Figure 4-3 Power Subsystem Simplified Block Diagram
UMA
DC
/D
C CO
NVER
T
E
R
D
C
BAT
O
U
T
CH
A
R
GER
8M
B
DR
A
M
/
DI
M
M
*1
M+
5
V
M+
3
.3
V
H
DD/
CD
FD
D
PC
I1
1
3
0
SW
SW
M
1
521
M
1
523
90
88M
A
L
CP
U
+3
.3
V
SW
M+
5
V
SW
+2
.9
V
M+
2
.9
V
SW
M+
7
V
AU
DI
O
_
V
D
D
E
S
187
8S
SW
FL
A
S
H
RO
M
+
12V
M
+
12V
+3
.3
V
+5
V
+3
.3
V
+5
V
+5V
VG
A
_
VD
D
M+
5
V
M
+
3.
3V
M+
5
V
M+
5
V
L
2
CA
CH
E
HDD
PC
I0
6
4
3
8733
8
+5
V
M
637
5
M
388
13
655
50/
S
3
VR
A
M
R
ESU
M
E
GL
UE
LO
G
IC
M+
5
V
MA
X
2
1
3
SW
P
C
I0643
+3
.3
V
+
12V
+5
V
SW
AD
+
BAT
+
AD
+
BA
T
+
SW
LC
D
CD
/D
C2
CD_
5V
Notebook
MPB
CH
A
R
GER
ADVANCED
PCI CARD
Summary of Contents for Extensa 900 Series
Page 1: ...Maintenance Manual ExtensaTM 900 Series Notebook Computers 9813715 0001 December 1996 ...
Page 10: ......
Page 28: ......
Page 44: ......
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Page 82: ......
Page 98: ......
Page 138: ...A 2 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 1 of 30 ...
Page 139: ...Notebook Schematic Diagrams A 3 Figure A 1 Notebook Main Board Logic Diagrams Sheet 2 of 30 ...
Page 140: ...A 4 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 3 of 30 ...
Page 141: ...Notebook Schematic Diagrams A 5 Figure A 1 Notebook Main Board Logic Diagrams Sheet 4 of 30 ...
Page 142: ...A 6 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 5 of 30 ...
Page 143: ...Notebook Schematic Diagrams A 7 Figure A 1 Notebook Main Board Logic Diagrams Sheet 6 of 30 ...
Page 145: ...Notebook Schematic Diagrams A 9 Figure A 1 Notebook Main Board Logic Diagrams Sheet 8 of 30 ...
Page 146: ...A 10 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 9 of 30 ...
Page 147: ...Notebook Schematic Diagrams A 11 Figure A 1 Notebook Main Board Logic Diagrams Sheet 10 of 30 ...
Page 148: ...A 12 Notebook Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 11 of 23 ...
Page 149: ...Notebook Schematic Diagrams A 13 Figure A 1 Notebook Main Board Logic Diagrams Sheet 12 of 30 ...
Page 153: ...Notebook Schematic Diagrams A 17 Figure A 1 Notebook Main Board Logic Diagrams Sheet 16 of 30 ...
Page 154: ...A 18 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 17 of 30 ...
Page 155: ...Notebook Schematic Diagrams A 19 Figure A 1 Notebook Main Board Logic Diagrams Sheet 18 of 30 ...
Page 156: ...A 20 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 19 of 30 ...
Page 157: ...Notebook Schematic Diagrams A 21 Figure A 1 Notebook Main Board Logic Diagrams Sheet 20 of 30 ...
Page 158: ...A 22 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 21 of 30 ...
Page 159: ...Notebook Schematic Diagrams A 23 Figure A 1 Notebook Main Board Logic Diagrams Sheet 22 of 30 ...
Page 160: ...A 24 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 23 of 30 ...
Page 161: ...Notebook Schematic Diagrams A 25 Figure A 1 Notebook Main Board Logic Diagrams Sheet 24 of 30 ...
Page 166: ...A 30 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 29 of 30 ...
Page 168: ......
Page 171: ...MPB Schematic Diagrams B 3 Figure B 1 MPB CPU Board Logic Diagrams Sheet 2 of 3 ...
Page 176: ...B 8 MPB Schematic Diagrams Figure B 3 MPB Main Board Motherboard Logic Diagrams Sheet 3 of 10 ...
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