Top

Parallel Port

J2502

Keyboard/Mouse

J2501

Serial Port A (Bottom) J4003

Serial Port B

(Top) J4002

TPE

J2301

RearMII J2101

 

J2802

 

 

 

J2703

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NVRAM/

 

 

 

TOD

 

 

 

 

 

 

 

 

 

 

 

 

 

DIMM

 

 

 

U1004

 

 

 

 

 

 

U1003

bank 3

 

 

 

U1002

 

 

 

 

 

U1001

DIMM

 

 

U0904

 

 

 

 

U0903

bank 2

 

 

U0902

 

 

 

 

 

U0901

DIMM

 

U0804

 

 

U0803

bank 1

 

U0802

 

 

 

 

 

U0801

 

 

 

 

 

U0704

 

 

 

 

 

DIMM

 

U0703

bank 0

 

U0702

 

 

 

 

 

U0701

J2903

J2902

J2901

 

J3001J0102J2801J2604 J2702

J0202 J2804J2605

Front

SCSI

J1901

Audio J3501

CPUSlot 1 (J0201)

CPU Slot 0 (J0101)

Monitor 0 J3301

Monitor 1 J3401

PCI 66 1 J1301

 

 

 

PCI 2 J1401

Internal SCSI

 

J1801

PCI 3 J1501

 

 

 

PCI 4 J1601

 

Bottom

J2703=FPROM R/W, J2605 + J2604=RS423/232,

J3001=UPA Clk /2 /3, J2804=FPROM Boot Hi-Lo.

FIGURE C-12System Unit Motherboard Functional Block Diagram

C-44Sun Ultra 60 Service Manual • August 2001

Page 244
Image 244
Sun Microsystems 60 service manual Tpe