Before Replacing The Main Logic Board - Sun Microsystems SPARC classic Service Manual

Power supply
connector
Keyboard soft
power-on
connector
NVRAM
LED/speaker
connector
Boot PROM
AUI PTC
FIGURE 11-14
11.4.2

Before Replacing the Main Logic Board

This section explains what steps to perform before removing and replacing the main
logic board.
Video SIMM slot
SBus slot 0
SCSI terminator
PTC
Keyboard/
mouse PTC
Main Logic Board Layout—SPARCstation LX (Part 270-2474)
Chapter 11
Diskette drive
data connector
SIMM slot U0401
SIMM slot U0302
SIMM slot U0303
SIMM slot U0402
SIMM slot U0301
SIMM slot U0304
Audio power
PTC
Main Logic Board and Component Replacement
Hard drive
data connector
Bank 3
Bank 2
Bank 1
Bank 3
Bank 2
Bank 1
SBus slot 1
ISDN
Jumpers
I/O board
edge connector
11-21