Acer Extensa 450 Maintenance Manual

Checkpoint
No.Description
D4h   Normal POST start
3Ah   Interval timer channel 2 test in_progress or
failure
3Bh   Time-Of-Day clock test in_progress or failure
3Ch   Serial port test test in_progress or failure
3Dh   Parallel port test test in_progress or failure
3Eh   Math Coprocessor test in_progress or failure
50h  Initial M1429
52h   Dynamic Memory Configuration & check
external Cache size
53h  Shadow BIOS
54h   Perform PCI device initialization
55h   Check CMOS checksum
56h   Check CMOS config...

Checkpoint
No.Description
D4h   Normal POST start
1Fh   Begin to configures PCI VGA devices
D1h   Allocate Space for option ROM
       
Error  Messages 
A-5 

Appendix B
Connector Pinouts
B.1    Introduction
This appendix contains connector pinout data for the Extensa 450 Series Notebook
Computers.
Table B-1 PS/2 Mouse/Keyboard Port (J2) Pin Assignments
Pin
No.Pin Name Pin
No.Pin Name 
1DATA 4 VCC
2 XDATA 5 CLOCK
3 GND 6 XCLOCK
Table B-2 Parallel Port (J3) Pin Assignments
Pin
No.Pin Name Pin
No.Pin Name
1 -Strobe 14 -Auto line feed
2 Data0 15 -Error
3 Data1 16 -Initialize
4 Data2 17 -Select in
5 Data3 18 GND
6 Data4 19 GND
7 Data5 20 GND
8 Data6 21 GND
9 Data7...

Table B-3  LCD VR Board Connector Pin Assignments
Pin
NoPin Name Pin
NoPin Name
1 DCBATIN 5 GND
2 CCFT_ON 6 CCFTID
3FPVEE 7 GND
4LCDVEE
Table B-4  SIR  Connector (J8)  Pin Assignments
Main
Board
Pin NoPin Name I/O SIR
Board
Pin NoPin Name
1 VCC SIR Input 1 VCC
2N.C. 2 GND
3 DSR2# SIR Output 3 SIR_RXD
4 DTR2# SIR Input 4 SIR_TXD
5 SIR_EN SIR Input 5 SIR_EN
6 N.C. 6 N.C.
7 N.C. 7 N.C.
8 N.C. 8 N.C. 
     
B-2 Connector  Pinouts 

Table B-5 LCD Signal Connector (J12)  Pin Assignments
Pin
NoPin Name Pin
NoPin Name
1N.C. 21PLD16
2 LCD+5 22 PLC17
3N.C. 23PLD18
4PMOD 24PLD19
5GND 25GND
6PSLD3 26PLFS
7PSLD2 27PLP
8 PSLD1 28 PSHFCLK
9 PSLD0 29 DISPLAY
10 PSUD7 30 LCD+5
11 PSUD6 31 GND
12 PSUD5 32 LCDVEE
13 PSUD4 33 PUD0
14 GND 34 PUD1
15 GND 35 PUD2
16 N.C 36 PUD3
17 PLD23 37 PLD0
18 PLC22 38 PLD1
19 PLD21 39 PLD2
20 PLD20 40 PLD3
       
Connector  Pinouts 
B-3 

Table B- 6   FDD Connector (J11)  Pin Assignments
Pin
NoPin Name Pin
NoPin Name
1 VCC 11 GND
2 INDEX# 12 WDATA#
3 VCC 13 GND
4DR0# 14WGATE#
5 VCC 15 TRK0#
6 DSKCHG 16 WR TPR T#
7 MTR0# 17 GND
8 FDIR 18 RDATA#
9 3_MODE 19 INTFDD#
10 STEP# 20 HESEL
Table B- 7  PCMCIA Connector (J21)  Pin Assignments
Pin
NoPC Card Interface
FunctionATA Interface
Function
21 B_IOWR# B_IOWR#
22 B_A17 N.C.
23 B_A18 N.C.
24 B_A19 N.C.
25 B_A20 N.C.
26 B_A21 N.C.
27 B_VCC B_VCC
28 B_VPP2 N.C.
29 B_A22 N.C.
30 B_A23 B_VU
31...

Pin
NoPC Card Interface
FunctionATA Interface
Function
36 B_INPACK#
37 B_REG#, 
38 B_SPKR# B_LED
39 B_STSCHG# B_PDIAG
40 B_D8 B_D8
41 B_D9 B_D9
42 B_D10 B_D10
43 B_CD2# B_CD2#
44 GND GND
45 PCMCIA#, 
46 GND, 
47 GND, 
48 B_D3 B_D3 
49 B_CD1# B_CD1#
50 B_D4 B_D4
51 B_D11 B_D11
52 B_D5 B_D5
53 B_D12 B_D12
54 B_D6 B_D6
55 B_D13 B_D13
56 B_D7 B_D7
57 B_D14 B_D14
58 B_CE1# B_CS0
59 B_D15 B_D15
60 B_A10 N.C.
61 B_CE2# B_CS1#
62 B_OE# 0
63 N.C. N.C.
64 B_A11 N.C.
65 B_IORD# B_IORD#
66 B_A9 B_CS1...

Pin
NoPC Card Interface
FunctionATA Interface
Function
67 B_A8 N.C.
68 B_A13 N.C.
69 B_A14 N.C.
70 B_WE# N.C.
71 B_IREQ# B_IREQ
72 B_VCC B_VCC
73 B_VPP1 N.C.
74 B_A16 N.C.
75 B_A15 N.C.
76 B_A12 N.C.
77 B_A7 N.C.
78 B_A6 N.C.
79 B_A5 N.C.
80 B_A4 N.C.
81 B_A3 N.C.
82 B_A2 B_A2
83 B_A1 B_A1
84 B_A0 B_A0
85 B_D0 B_D0
86 B_D1 B_D1
87 B_D2 B_D2
88 B_IOIS16# B_IOCS16#
89 GND GND
90 N.C. N.C.
     
B-6 Connector  Pinouts 

Table B-8  Memory Board Connector Pin Assignments (J13) 
Main
Board
Pin No Main Board
Pin Name Main
Board I/OMemory
Board
Pin No. Memory
Board Pin
Name 
1 BRAS3# Output 1 BRAS3#
2 BRAS2# Output 2 BRAS2#
3 BMA10 Output 3 BMA10
4 BMA9 Output 4 BMA9
5 BMA4 Output 5 BMA4
6 BMA1 Output 6 BMA1
7 BMA2 Output 7 BMA2
8 BMA3 Output 8 BMA3
9 BCAS1# Output 9 BCAS1#
10 BRAS0# Output 10 BRAS0#
11 BCAS0# Output 11 BCAS0#
12 BRAS1# Output 12 BRAS1#
13 BWE# Output 13 BWE#
14 BCAS3# Output 14 BCAS3#
15 BCAS2# Output 15...

Main
Board
Pin No Main Board
Pin Name Main
Board I/OMemory
Board
Pin No. Memory
Board Pin
Name 
31 BHD29 I/O 31 BHD29
32 BHD28 I/O 32 BHD28
33 BHD27 I/O 33 BHD27
34 BHD26 I/O 34 BHD26
35 BHD25 I/O 35 BHD25
36 BHD24 I/O 36 BHD24
37 BHD23 I/O 37 BHD23
38 BHD22 I/O 38 BHD22
39 BHD21 I/O 39 BHD21
40 BHD20 I/O 40 BHD20
41 BHD19 I/O 41 BHD19
42 BHD18 I/O 42 BHD18
43 BHD17 I/O 43 BHD17
44 BHD16 I/O 44 BHD16
45 BHD15 I/O 45 BHD15
46 BHD14 I/O 46 BHD14
47 BHD13 I/O 47 BHD13
48 BHD12 I/O 48 BHD12
49 BHD11 I/O 49...