Acer Extensa 610 Service Guide

Date: February 12, 1997Sheet   24of   25
SizeDocument NumberREV
A396149SC
Title
370P/J (H/W JUMPER SETTING)TAIPEI TAIWAN R.O.C ACER
ALADDIN III
PULL L: 5V suspend mode enable.
PULL H: 5V suspend mode disable.
L: DMA DACK[7:5,3:0] polling enable.
H: DMA DACK[7:5,3:0] polling disable.*** If L, add ALDN3 P.21 MUX!   12
R171
10KR3
    12
R43
10KR3
 
XDIR
SPLED
+5V
4
4
COMMON
 3  41
4
7
U41B
SSHCT04
  1
  21
4
7
U41A
SSHCT04
 
$CPURSTPCIRST#
RSTDRV
+5V
+5V
4 3,10,14,17,21,22
11,13,15
+5V
  9
 10
 8 1
4
7...

Date:  January 27, 1997Sheet   25of   25
SizeDocument NumberREV
A396149SC
Title
370P/J (BYPASS CAPACITORS)TAIPEI TAIWAN R.O.C ACER
C240
SCD1U
 C213
SCD1U
 C232
SCD1U
 M1521C108
SCD1U
 
3.3V
1
2C122
ST100U10VDK
 C248
SCD1U
 C118
SC10U16V
 
3.3V
C110
SC1U16V5ZY
 
CPU
CLOSE TO PIN7,9,11,13,15,17
BYPASS CAPACITORS
1
2C238
ST100U10VDK
 1
2C246
ST100U10VDK
 C120
SCD1U
 C251
SC2K2P
 
2.9V2.9V
C113
SC1000P50V3KX
 P/N: 80.15711.341
7343,D SIZE
CLOSE TO PIN 269,271,273,275,277,279CLOSE TO PIN88,98,108,118,128,138...

A  p   A  p  p  e  n  d   p  e  n  d  i  x        E i  x        E
BIOS POST CheckpointsBIOS POST CheckpointsE-1This appendix lists the POST checkpoints of the notebook BIOS.
Table E-1POST Checkpoint ListCheckpointDescription04h· Check CPU ID
· Dispatch Shutdown Path
Note:At the beginning of POST, port 64 bit 2 (8042 system flag) is read to
determine whether this POST is caused by a cold or warm boot.  If it is a cold
boot, a complete POST is performed.  If it is a warm boot, the chip initialization
and...

E-2Service GuideTable E-1POST Checkpoint List (Continued)CheckpointDescription2Ch· 128K base memory testing
· Set default SS:SP= 0:400
Note:The 128K base memory area is tested for POST execution.  The remaining
memory area is tested later.20h· KB controller(8041/8042) testing
· KB type determination
· Write default command byte upon KB type24h· PIC(8259) testing & initialization30h· System Shadow RAM34h· DRAM sizing3Ch· Initialize interrupt vectors4Bh· Identify CPU brand and type35h· PCI pass 040h·...

BIOS POST CheckpointsE-3Table E-1POST Checkpoint List (Continued)CheckpointDescription7Ch· Reset pointing device
· Check pointing device70h· Parallel port testing74h· Serial port testing78h· Math Coprocessor testing80h· Set security status84h· KB device initialization
· Set KB led upon setup requests
Note:If keyboard Number Lock is enabled, the NumLock LED (if present) should be
turned on.
· Enable KB device6Ch· FDD testing & parameter table setup
Note:The FDD LED should flash once and its head should be...