Sun Microsystems SPARC classic - Before Replacing the Main Logic Board

Chapter 11 Main Logic Board and Component Replacement 11-21
FIGURE 11-14 Main Logic Board Layout—SPARCstation LX (Part 270-2474)
11.4.2 Before Replacing the Main Logic Board
This section explains what steps to perform before removing and replacing the main
logic board.
I/O board
Hard drive
data connector
LED/speaker
connector
Keyboard soft
power-on
connector
Diskette drive
data connector
Power supply
connector
SIMM slot U0304
SIMM slot U0301
SIMM slot U0402
SIMM slot U0303
SIMM slot U0302
SIMM slot U0401
Bank 1
Bank 2
Bank 3
Bank 1
Bank 2
Bank 3
Video SIMM slot
SBus slot 0 SBus slot 1
NVRAM
Boot PROM
edge connector
ISDN
Jumpers
SCSI terminator
PTC
Keyboard/
mouse PTC
AUI PTC
Audio power
PTC