Acer Extensa 900 Maintenance Manual
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Page 171
MPB Schematic Diagrams B-3 Figure B-1 MPB CPU Board Logic Diagrams (Sheet 2 of 3)
Page 172
B-4 MPB Schematic Diagrams Figure B-1 MPB CPU Board Logic Diagrams (Sheet 3 of 3) C22 SCD1UC13 SCD1UC29 SCD1UC40 SCD1UC25 SCD1U CPU_VEND CPU_ID2CPU_ID3 1 1 1 1 2R14 0R3 1 2R2 0R3 1 2R3 0R3 1 2R12 0R31 2R11 0R3 CPU_ID0CPU_ID1 1 1 Not Installed C36 SCD1U C30 SCD1U R12 R11 R12SHIGA SHIGA R2 R3 RATIO 1 2R25 36KR3D R11SHIVA CPU CLOCK CPU_VOLT0 1 FOR SHIGA SHIVA NOT INS. CPU_VOLT1 CPU_THM CPU_THMG 1 1 1 THERMAL SENSOR 1 2TH1 TH301 50MHz 60MHz 66MHz X O : Install O X X X : Not installXX OO X X X1.5 X2.0...
Page 173
MPB Schematic Diagrams B-5 Figure B-2 MPB Battery Board Logic Diagrams (Sheet 1 of 1) CLOSE BATTRY CONN. PIN1 1 2 3 4 5 6 7 8 CN1 AMP-CON8 1 2 3 4 5 6 7 8 CN2 MOLEX-CON8 C1 SC1000P50V3MX C2 SC1000P50V3MX C3 SC1000P50V3MX C4 SC1000P50V3MX C5 SC1000P50V3MXC6 SC1000P50V3MX
Page 174
B-6 MPB Schematic Diagrams
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 1 of 10)
1 2
3
4 5
6
7
8
RP5
SRN10
1 2
3
4 5
6
7
8
RP6
SRN10
1 2 3 4 5
6
7
8
RP7
SRN10
$PCICLK0
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
AD24 $PCICLK0
2,10
1 2
R119
10R3 1 2 3 4 5
6
7
8
RP10
SRN10
1
2
3
4 5 6
7
8
RP1
SRN10
1
2
3
4 5 6 7 8
RP2
SRN10
REQ#1PARINTC#INTB#PERR#
AD0
AD1
AD2
AD3
AD4
AD5REQ#1
PAR
INTC#
INTB#
$PCICLK1TP67
TP68
TP69
TP66
TP28
TP141...
Page 175
MPB Schematic Diagrams B-7 Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 2 of 10) 12 R21 22R3 12 R39DUMMY-R3 GNT#1IDE_DACK0#INTC# IDE_DACK0# GNT#1 TP110 1 83,10 3 41 4 7 U11B SSHC14 1 2 R158 DUMMY-R3 IRQ15 +5V TP377 D 12CLK 11Q 9Q 8 VCC 14 P R1 0 GND 7 C L 1 3 U5B SOHCT74 1 2R163 47KR3 CD_PASS# +5V +5V +5V TP378 NC 1 /1OE 2 1A 3 1Y 4 /2OE 5 2A 6 GND 82Y 7 NC 9 3Y10 3A 11 /3OE 12 4Y...
Page 176
B-8 MPB Schematic Diagrams Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 3 of 10)
Page 177
MPB Schematic Diagrams B-9
Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 4 of 10)
AUDIO AMP.
C88SCD1U
C89SC1KP
AD+
12L7
SCHOKE-D
+5VAMP_5V
C85
SC100P
12R100
56KR3
+5V+5V
1
2
R102
DUMMY-R3 1
2
R101100KR3
C87
SCD1U
+5V
SB
1
23Q7
2N7002
2 4 6 8 10 12 14 16 18 20
3 5 7 91113151719
1CN13
HRS-CONN20D
1 3
D14
BZX84C4V3L
12R159
1KR6
12R162
1KR6
DK_LINEIN_RDK_LINEIN_L
DK_PJIN#...
Page 178
B-10 MPB Schematic Diagrams Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 5 of 10)
Page 179
MPB Schematic Diagrams B-11 Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 6 of 10) C61 SC1KP 1 2C67 ST100U16VDM 12 R111 10KR3 12 R112 10KR3 3V 1 3V 2 5V 3 5V 4 3V_ID 7 DCBATT_IN 8 DCBATT_IN 9 3.3V ON/OFF 10 PGVCC 11 PG 12 ON/OFF 13 5VSB 14 12V 15 8V 16GND 5 GND 6CN14 T62-030-C +5V+12V+8V 1 2C58 ST100U16VDM 1 2 C59 ST100U16VDM C64 SCD1U 1 2C65 ST22U35VDM 1 2 C66...
Page 180
B-12 MPB Schematic Diagrams Figure B-3 MPB Main Board (Motherboard) Logic Diagrams (Sheet 7 of 10) 1 2 3 Q4 2N7002 C113 SCD1U AD5V TP292+5VSB 1 2R88 150KR3 1 2R87 47KR3 AD+ T292 TP-1T336 TP-1T335 TP-1T337 TP-1T285 TP-1T244 TP-1T121 TP-1 TP292 TP336 TP335 TP337 TP285 TP244T350 TP-1T327 TP-1T367 TP-1T363 TP-1T364 TP-1T372 TP-1 TP121 TP350 TP327 DK_BL3# ID_CLK ID_DATA AD5V DK_MOSON DCBATOUT1,10 1 2R104 560R3 123 D7 BAV99 TP350 DK_BL3# 1 2 3 QX1 2N7002 SC C75 SCD1U C76 SC1KP BAT+ +5VSB 1 2...