Acer Extensa 900 Maintenance Manual

                                                                                     Notebook Schematic Diagrams  A-25
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 24 of 30) 

A-26   Notebook Schematic Diagrams
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 25 of 30)
4 4
4IRQ14IRQ15IRQ12
RSTDRV
+5V
  1
  2
  3
  4
  5 67 8 9 10
RP48
SRP10K
  MEMR#
MEMW#
IOR#
IOW#
+5V
4,19 4,19 4,19  1
  2
  3
  4
  5 67
8
9 10
RP36
SRP4K7
 
  1
  2
  3
  4 56
7
8
RP41
SRN100K
DRQ1DRQ3DRQ2DRQ1
DISROM
DRQ3
DRQ2
+5V
44
4 4,19 4,19 4,19
4,19
DRQ0DRQ5DRQ6DRQ7
MEMCS16#IOCS16#REFRESH# DRQ0
DRQ5
DRQ6
DRQ7
MEMCS16#
IOCS16#
REFRESH#
SD4
SD5
SD6
SD7
+5V
  1
  2
  3
  4
  5 67 8 9
10
RP49
SRP10K...

                                                                                     Notebook Schematic Diagrams  A-27
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 26 of 30)
  1 2L9
MLB321611
  12345 6 7 8
RP3
SRN10K
   1  2
F1
SPOLY100
 +5V
PS2 INTERFACE
14,21
14,21
14,2114,21
PS2DATA
PS2CLKKBCLK
KBDATA
C79
SC47P
 
  1 2R1
47R3
    1 2R2
47R3
    1 2
R4
47R3
   1 2
R3
47R3
   12
L4
MLB321611
    1 2L5
MLB321611
    1 2
L7
MLB321611
   12
L6
MLB321611
 
  1   2   3   4   5   6   7
  8
CN9...

A-28   Notebook Schematic Diagrams
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 27 of 30)
 1312 1
4
7
U86F
SSHC14
 +5VSB 1
2R253
47KR3
 AD+
+5VSB
  12R252
150KR3
 3
1   2Q9
RN1424
 AD_IN#
ADAPTOR PLUG-IN DETECTION CIRCUIT23
AD5V AD5VC351
SCD1U
 C352
SC1KP
  +5VSB
+5VSB
CHARGER INTERFACE CIRCUIT
1414
  1  2  3  4  5  6  7  8
CN21
MOLEX-CON8
 
SMB1_CLKSMB1_DATA
BAT_TH BAT_VS
BAT+
BATTERY CONNECTOR
SMB1_CLK, SMB1_DATA: CHARGER SMB I2C
1921
28
  1  3  5  7  9 11 13 15 17 19
 2 4 6 8101214161820...

                                                                                     Notebook Schematic Diagrams  A-29
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 28 of 30)
C73
SCD1U
 
+5V
C74
SCD1U
 C72
SCD1U
 
M+5V+5VSB
LED INTERFACE
21 273
1   2Q1
RN1424
 CHARGE_LED3
1   2Q2
RN1424
 DK_CHG_LEDCHARGE_LED#
14 14 20CLLED#
NLLED#
@COVER_SWCOVER_SW
CHARGE_LED#
NLOCK_LED#
CLOCK_LED#
M+5V
+5VSB
SB: ADD LOWBAT_LED
19
29   1
  3
  5
  7
  9
 11
 13 2
 4
 6
 8
10
12
14
 15
 17  19
16
18 20
CN7...

A-30   Notebook Schematic Diagrams
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 29 of 30) 

                                                                                     Notebook Schematic Diagrams  A-31
Figure A-1  Notebook Main Board Logic Diagrams (Sheet 30 of 30)
  3 4 1
4
7
U11B
SSHC14M+5V
 1110 1
4
7
U34E
SSHC14 13
12 1
4
7
U34F
SSHC14
  1 2 1
4
7
U11A
SSHC14M+5VM+5VM+5V
 1110 1
4
7
U53E
SSHC14 13
12 1
4
7
U53F
SSHC14+5V+5V
      
 1312 1
4
7
U8F
SSHC14
 
  9 8 1
4
7
U12D
SSHC14
  13
12 1
4
7
U19F
SSHCT04
 +5V+5V+5V
+5V
 1110 1
4
7
U1E
SSHC14
  13
12 1
4
7
U1F
SSHC14
   M+5VM+5V...

                                                                                        MPB Schematic Diagrams  B-1
B
MPB Schematic Diagrams
B.1 Introduction
This section contains schematic diagrams for the Extensa 900 Mobile Productivity Base. 
Logic schematics for the MPB are provided in Appendix A of this manual. 

B-2   MPB Schematic Diagrams
P
Figure B-1  MPB CPU Board Logic Diagrams (Sheet 1 of 3)
VCC_CPU
C51
SC22U10V0JYC45
SC22U10V0JY
C46
SC22U10V0JYC54
SC22U10V0JY
C37
SC22U10V0JYC50
SC22U10V0JY
C44
SC22U10V0JYC48
SC22U10V0JY
C20
SC22U10V0JYC27
SC22U10V0JY
C49
SC22U10V0JYC34
SC22U10V0JY
  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50...