Service manual

Neurodiagnostic Instruments Service Manual
3 - 30 Revision 2/18/05
Testing
1. The POST (Power On Self Test) alerts you to
problems with the motherboard using either a beep
code or displayed error messages.
2. Check the CMOS settings to verify the factory-
default settings have not been modified accidently.
Circuit Board Removal/Replacement
Replacing the CMOS Battery
Backup power for the CMOS RAM is provided by an on
board battery. These batteries typically have a life span
of 3-6 years. When the battery starts to weaken, it loses
voltage. When the voltage drops below 3 volts, the
system settings stored in CMOS RAM (for example,
time and date) may be wrong. When this happens,
replace the battery. We recommend replacing the battery
every two years to prevent problems.
Updating the BIOS
Do not update the computer’s BIOS version. The
OEM version of Windows XP supplied with VIASYS
desktop systems is locked to the computer’s BIOS.
Therefore, updating the BIOS will de-activate the
operating system.
Additional Information
The D865GLC Technical Product Specification is
available from: support.intel.com.
Step Action
1. Disconnect all cables from the computer
then remove it from the cart or console.
Place the computer on a static mat.
2. Loosen the two retaining screws that secure
the cover to the rear panel. Pull the cover
back and lift it off. Place it out of your way.
3. The expansion cards are held in place by a
plastic retainer. Locate and press in on the
tab that secures the retainer to the chassis,
then remove the retainer.
4. Using proper antistatic protection, gently lift
the board from its expansion slot.
Step Action
1. Make sure you have a record of the system
configuration settings.
2. Turn off all peripheral devices connected to
the system.
3. Turn off power to the system.
4. Remove the system cover.
5. The button type battery is typically located
on the front side of the motherboard, just
behind the hard drive.
6. Replace the worn battery with a direct
replacement CR2023 3-volt lithium battery,
P/N 089-400600. The (+) side of the battery
faces up. There is not provision for an
offboard battery.
7. Power up and press F1 during the boot
process to enter the Setup program. Verify
or reenter the correct system settings.