2.1Main Control Board (CRM-PWB)

Figure 2-2 provides the block diagram of the main control board (CRM-PWB).

 

48MHz

 

 

 

33MHz ·2

 

 

33MHz

SPD

EEPROM

C2LSI MHM2031-002

 

 

 

·4

 

 

 

 

 

 

 

DIMM SDRAM

 

 

 

 

CDC516

80MHz

 

 

3

 

 

 

 

 

A,Cont

D

Bus)

40MHz

 

16

 

 

 

 

 

 

 

DIMM FLASH

A/D,Cont(SUB

 

CY2292

CY2308

80MHz

A,Cont

 

LVC244A,Cont

LVC245

Delay

 

 

 

 

 

FLASH MOR

 

 

 

 

 

 

162212

D

 

 

 

 

 

 

FET SW

 

 

 

 

 

2

 

 

 

 

 

 

14.31818MHz CrystalResonator

80MHz

80MHz

 

 

A,Cont

D

 

 

IMI1530 FluctuationCircuit

 

 

C1LSI MHM 2030002-

 

 

 

Delay

 

 

A

D

Cont

 

L2 Cache

 

80MHz

 

 

 

 

 

PPC 750

A/D,Cont

 

PCIBus LANBoard

L60851

 

 

USB

 

Bus

IF

 

 

IDE HDD

 

 

 

 

 

 

LVC161284

 

 

Centro

Buf

16244

Pins

 

 

 

PU-CUI/F,

OperatorPanel

Connector,200

 

RESET-P

 

DataVideo

PUBoard

 

 

Buf

16244

 

 

 

 

Y,M,CandK

toC2and 3.3VICs

to5VICs

Inverter

3.3V

2.5V Regulator

 

 

 

Reset DS1834

 

Internal-CLK- Setting Resistance

 

 

 

5V

2.0V Regulator

Figure 2.2

41388601TH Rev.2

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Image 12
Sony C9000 service manual Main Control Board CRM-PWB, Dimm Flash