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41388601TH Rev.2 12 /
2.1 Main Control Board (CRM-PWB)
Figure 2-2 provides the block diagram of the main control board (CRM-PWB).
PPC
750
L2
Cache
Delay
Delay
Buf
16244
Buf
16244
IF Bus
EEPROM
A
D
Cont
Y, M, C and K Video Data
PU-CU I/F,
Operator Panel
A/D,Cont
A/D, Cont(SUB Bus)
14.31818MHz
Crystal Resonator
CY2292
CY2308
FET SW
162212
FLASH ROM
FLASH DIMM
×3
SDRAM DIMM
·4
IMI1530
Fluctuation Circuit
Internal-CLK-
Setting
Resistance
Reset
DS1834
to C2 and
3.3V ICs
to 5V ICs
PU Board Connector, 200 Pins
Inverter
RESET-P
2.0V
Regulator
2.5V
Regulator
C1 LSI
MHM
2030-002
C2 LSI
MHM2031-002
CDC516
80MHz
LVC244
LVC161284
Centro USB
L60851
PCI Bus
LAN Board
IDE
HDD
LVC245
80MHz
80MHz
3.3V5V
40MHz
48MHz
33MHz
33MHz
·2
SPD
80MHz
×2
80MHz
×16
A,Cont
A,Cont A,Cont A,Cont
DDD
Figure 2.2