Service manual

System Unit
Removing the System Board
Follow these steps to remove the system board:
1
Remove the cover (see page 3-2), any option cards (see page 3-5), and the option card
riser board (see page 3-8).
2
Disconnect the power supply cables from CN13, any drive cables from CN6 and CN7,
the speaker and LED connectors at CN3, CN11 and CN16, any VGA feature
connector at CN17, and cables connected to the serial, parallel, mouse, video, and
keyboard ports.
3
Remove the six screws that secure the system board to the main chassis (see
Figure 3-17).
Figure 3-17 Removing/Replacing the System Board
4
Pull the system board forward then tilt it up. Then pull the system board slightly
toward you and lift it up and out of the chassis. Place the system board on an
anti-static surface or in an anti-static bag for protection.
3-22 Epson NX Service Manual