Spitfire – Maintenance Manual
66
AP-74096, Rev. 1.0, 09/06/05
4.4. REPLACING BOARD BASES
This chapter explains the procedures for replacing the power source board assembly, mainboard assembly,
PCI_Linux board assembly and cooling fan assembly.
Caution :
When handling circuit boards, do not touch the elements on the board with your bare
hands. Doing so may cause static electricity and break the elements.
4.4.1 Replacing the Mainboard assembly, HDD_Extension board
assembly,
HEAD_DRV board assembly, PCI_Linux board assembly
and
cooling fan assembly
Notes
Before replacing the mainboard, discharging the capacitors on the power supply is needed.
Follow these instructions :
Step 1: Switch off the device (Push Power ON/OFF key)
Step 2: Unplug the power cable
Step 3: Push the Power ON/OFF key again
→ The Display of the device lights up once more for a short time and goes out.
→ The Capacitors of the power supply are now discharged.
Step 4: Push the Power ON/OFF key again
→ The switch is now in the OFF position (and safe to plug the power cord again after the repair).
Now it’s safe to open the machine and replace boards.
Notes
Before replacing the mainboard, be sure to backup your parameters with a flashcard. Please follow the
instructions in the maintenance manual.
Step 1 : Remove the power cable
Step 2: Power ON the machine, this to remove the rest voltage from the capacitors and main supply.
The display and LED’s will light up for a second and rest voltage will be removed
Step 3 : Remove the right side cover.
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