Replacing The System Board - Sun Microsystems SPARCstation 4 110 Service Manual

FIGURE 11-28
10. Pull the board out of the back of the chassis until it clears the plastic card guide.
11. Place the board on an antistatic surface.
FIGURE 11-29
11.5.2

Replacing the System Board

The serial port jumpers are preset for RS423 mode. See Section 11.5.3 "Setting
Jumpers" on page 11-29, if you need to change the jumpers on the system board to
RS232.
1. Install the new system board.
See
FIGURE 11-30
11-26 SPARCstation 4 Model 110 Service Manual • July 1996
SERIAL A/B
Loosen captive screw.
System Board Captive Screws
Removing the System Board
.
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TP
Loosen captive screw.
Card guide
System board