Acer Extensa 510 Maintenance Manual

EXTERNAL
VGA MONITOR
MAIN BOARD
XD BUS
SD BUS
Input From 
AC Adapter
SYSTEM &
VGA BIOS
XD BUS
Super I/O
Controller
RS-232
Serial Port Drivers/
Receivers
C&T 65540
Intel 
100 MHz
Pentium
Processor
Video 
Controller
System
Controller
State Machine
& Glue Logic
     
PC MC IA Adapter
      
Internal Hard Drive
Power Supply
Section
Internal 
Touchpad
Keyboard/PS2
Mouse Logic
Memory
Board
PCMCIA Option Slot(s)
512KB
Video RAM
Clock Generator
640 X 480
VGA LCD
Inverter 
BoardLocated internal
to the LCD...

4.2.2 I/O Subsystem
The I/O subsystem, implemented with an NS87334 VJG Super I/O
Controller Chip, provides for such functions as internal Hard Drive control,
floppy drive control, and serial and parallel ports. The Super I/O Controller
includes the following features: 
·100 percent compatible with ISA, EISA, and Micro-channel architectures
· Built-in Floppy Disk Controller
·Software compatible with the DP8473, the 765A and N82077
·
16-byte FIFO (default disabled)
·Burst and Non-burst modes
·Perpendicular...

·Integral address decoder - provides selection of all primary and
secondary ISA addresses including COM1-4 and LPT1-3.
·Enhanced Power Management Function
·
Special configuration registers for power down
·Enhanced programmable power -down and wake-up modes
·Auto power -down and wake-up modes
·3 special pins for power management
·Typical current consumption during power -down is less than 10A
4.2.3 Video Subsystem
The video subsystem, implemented on the Main Board and on the LCD
Display Unit, displays...

4.2.3.1 External VGA Drive Capability
On the Extensa notebook, the external VGA port is provided by the port
adaptor fixture in the form of a 15-pin, female, D-type connector which can
be used to drive an external CR T (up to 1024 x 768 x 256 colors.
4.2.4 Hard Disk Subsystem
The Hard Disk Subsystem, controlled by the IDE interface compatible
NS87334 VJG Super I/O Controller on the Main Board, provides disk
storage for all system software and user files. The Extensa 51x Series
Notebooks are equipped with...

4.2.6PCMCIA Subsystem
The notebook is equipped with an on-board PCMCIA host adapter PCMCIA
Controller) and sockets to support Type I, Type II or Type III options. The
PCMCIA Controller has the following features:
· Single-chip PCMCIA host adapters
· Direct connection to ISA (PC AT) Bus
· Direct connection to PCMCIA 2.0 Bus
· PCMCIA 2.0- and JEIDA 4.1-compliant
· 82365SL-compatible register set, ExCA-compatible
· Automatic Low-power Dynamic Mode for lowest power consumption
· Programmable Suspend Mode
·...

4.2.7.1 Power Management
The notebook is equipped with a power management function that
minimizes battery usage for prolonged battery operation and automatically
recharges the batteries when the notebook is used with an AC adapter.
The power management modes and warnings include the following:
· LCD standby mode
·Hard disk standby mode
·System standby/suspend mode
·Battery-low warning
·Standby/suspend upon battery low
4.2.7.2 AC Adapter
The notebook uses an AC adapter with built in over voltage and short...

Table 4-4 Primary Battery Pack Specifications
Function Specifications
Battery type NiMH (Nickel Metal-Hydride)
Cell structure 9 cells per pack (in series)
Nominal voltage 10.8 V
Cell energy capacity
   Typical
   Minimum2400 mAH
2500 mAH
2330 mAH
Nominal rated capacity 27 Watt-hours
Operating Temperature
_
   Discharge
   Charge-20 to 50°C (at 95%RH)
0 to 45°C (at 95%RH)
Charge and discharge
cycles500 (minimum)
Weight 470 grams
Battery discharge time 3 hours (with APM)
Battery charge time
   
4-8...

5
Troubleshooting Procedures
5.1General
This section provides the following information:
·Overview of the fault isolation process
·Guidelines for isolating computer malfunctions to replaceable
subassemblies
·Instructions for executing diagnostics and interpreting error messages
5.2Overview of Fault Isolation Process
The fault isolation process (summarized in Figure 5-1) consists of the
following: 
·Quick Check of the following:
·
Notebook power system (including battery packs and AC Adapter
connections)...

START
COMPUTER
TROUBLE
INDICATION
?
DEAD
COMPUTER
SYMPTOMS
?
RUN
SELF TEST
ERROR
MESSAGE
?
MODEM
PROBLEM
?
RUN
DIAG NOSTI CS
DIAG NOSTI CS
E RROR MS G
?
NO
YES
NOYES
SEE PARAGRAPH
5.3.4
NO
YE SSEE PARAGRAPH
5.3.3
NO
SEE
PARAG RAPHS
5. 3.1 &  5.3.2 NO
YES
WHEN POWER SWITCH
SET TO ON,, NO
INDICATION OF POWER;
SCREEN DARK,  STAT US
LEDs EXTINGUISHED
SET POWER SWITCH
TO ON. SELFTEST
AUTOMATICALLY RUNSYES
See Appendix B
(PC Doctor)
Figure 5-1  Troubleshooting Flowchart
   
5-2 
Troubleshooting 

·Try rebooting the system (Ctrl-Alt-Del); restore system from diskettes, if
necessary.
·If the computer is capable of running the Setup program; check the
serial and parallel port configurations, and other features that may
affect system operation.
·Run Diagnostics to further isolate problem area (refer to Paragraph
5.3.5).
·For indicated hardware failures, cycle power and repeat self test to
verify that a hard failure has occurred.
·Remove and replace suspect hardware (as described in Section 6 of this...