Canon LBP-2000 Service Manual page 100

The following is a block diagram of the video controller circuit:
<J8>
Expansion
interface
(option)
Expansion
interface
USB interface
External
device
<J7>
<J9>
<J10>
HDD
External
interface
device
(option)
Centronics
HDD/expansion
interface
interface
Built-in ROM
Expansion
ROM (option)
<J1/J2/J3>
Figure 2-6-2
<J6>
Control
panel
EEPROM
ASIC
CPU
X'TAL1
66MHz 9.4MHz
Built-in
DRAM
8MB
Expansion
RAM (option)
<J4>
CHAPTER 2
<J5>
DC
controller
Video
controller
interface
X'TAL2 X'TAL3
12MHz
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