Sun Microsystems SPARCstation 4, Service Manual

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Chapter 11 System Board and Component Replacement 11-31
4. If an Audio Module is installed, remove it.
See Section 11.2.1 “Removing the Audio Module.”
5. Use needlenose pliers to move both serial port jumpers from position A
to position B.
See
FIGURE 11-32
.
FIGURE 11-32
Setting the Serial Port Jumpers
6. Reinstall the Audio Module (if applicable).
See Section 11.2.2 “Replacing the Audio Module.”
7. Reinstall the SBus card (if applicable).
See Section 11.1.2 “Replacing the SBus Card.”
8. Detach the wrist strap and replace the cover.
See Chapter 7.
9. Power on the system.
See Section 6.2 “Powering On the System.”
RS423
RS232
J1
7
0
2
J1
7
0
3
A
J1
7
0
2
J1
7
0
3
B