Sun Microsystems SPARCclassic Service Manual page 151

Figure 11–18 Plugging in the Main Logic Board
6. Reconnect all cables that attach to the main logic board.
Each connector is keyed to fit one way only. For connector locations, see Figure
11–12 and Figure 11–13.
a. Connect the 12-pin connector from the power supply harness to its mating
connector on the main logic board.
b. Connect the 3-pin connector from the power supply harness to the keyboard
soft power-on connector on the main logic board.
c. Connect the LED/speaker cable to its mating connector on the main logic
board.
d. Connect the diskette drive and hard disk drive data cables to their
connectors at the front of the main logic board.
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