11-30 SPARCclassic/SPARCclassic X/SPARCstation LX Service Manual • November 1993
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.
7. Reinstall any SBus cards (if applicable).
See Section 11.1.2 “Replacing SBus Cards” on page 11-4 for installation details.
8. Refer to Chapter 7 “Internal Access” to perform the following procedures:
System I/O board
Main logic board
Main logic board
Speaker/power
LED assembly
extractor lever
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