Main Pcb Block Diagram - Brother HL-2600CN Service Manual

<Main PCB Block Diagram>
+5v
+3.3v
+5v
CDCC I/F
+3.3v
RJ45 Network Board
NC-4100
10/100Base-TX
USB
+5v
IDE
HARD DISK
+5v
CompactFlash Data BUS
HCT245
Compact Flash
Regurator
+3.3v
PQ30RV31
Regurator
+1.65v
PQ070XZ01Z
PCI-BUS
+5v/+3.3v
Local Data BUS
IDE Data BUS Gate Array
HCT245
SLAC099HF1A
+5v
EEPROM
M24C64
64kbit
Address BUS
Fig.4-37
IV-43
+3.3v / +1.65v
CPU
Clock
TMPR4955-266 Generator
(TX4955 266MHz) C8750
CPU-Address/Data MultiBUS
+5v/+3.3v
CS,DQM
LCX16347
RAS,CAS
WE,MA
Data BUS
LCX16245
ASIC
MB87F4561
+3.3v
MASK
ROM
32M x2
(8MB)
Address BUS
SN75C1168
Command,PrReq
Vsync,Status,Iready,KeyStatus
66MHz(CPU,SDRAM)
33MHz(PCI)
48MHZ(GA)
+3.3v
SLOT2
SLOT1
SLOT0
DIMM
(100pin)
3slots
348MB MAX
+3.3v
Flash
ROM
32M x2
(8MB)
Hsync
Video
ENGINE I/F
+5v
GND