Identifying Replaceable System Board Components - Sun Microsystems SPARC classic Service Manual

Power supply
connector
Keyboard soft
power-on
connector
NVRAM
LED/speaker
connector
Boot PROM
AUI PTC
FIGURE 10-3
10.5 Identifying Replaceable System Board
Components
Before you attempt to replace or install a new SPARCclassic/SPARCclassic X/
SPARCstation LX board or subassembly, make sure that you have the right unit.
10-6 SPARCclassic/SPARCclassic X/SPARCstation LX Service Manual • November 1993
Diskette drive
Video SIMM slot data connector
SBus slot 0
SCSI terminator
Keyboard/
PTC
mouse PTC
Main Logic Board Layout—SPARCstation LX System (Part 270-2474)
Hard drive
data connector
SIMM slot U0401
SIMM slot U0302
SIMM slot U0303
SIMM slot U0402
SIMM slot U0301
SIMM slot U0304 Bank 1
SBus slot 1
I/O board
Audio power
edge connector
PTC
Bank 3
Bank 2
Bank 1
Bank 3
Bank 2
ISDN
Jumpers