Sun Microsystems SPARC classic - Page 142

11-20 SPARCclassic/SPARCclassic X/SPARCstation LX Service Manual • November 1993
FIGURE 11-13 Main Logic Board Layout—SPARCstation LX (Part 270-2233)
I/O board
Hard drive
data connector
LED/speaker
connector
AUI PTC SCSI terminator
PTC
Keyboard/Audio power
PTC
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
Monitor control connectors
(used by SBus
frame buffer cards)
mouse PTC
edge connector
ISDN Jumper