Controller Board Operating Principles; Controller Board For Aculaser C2000 - Epson ACULASER COLOR 2000 Service Manual

EPSON AcuLaser C2000 / AcuLaser C1000

2.3 Controller Board Operating Principles

2.3.1 Controller Board for AcuLaser C2000

The following is the C314MAIN board block diagram.
CN7,8
CN2
CN3,4
CN18
CN1
Figure 2-38. C314MAIN Board Block Diagram (AcuLaser C2000)
Operating Principles
Specifications (AcuLaser C2000)
Item
CPU
E05B51BB
E05B52AA
E05B40BA
CN16
E05B79BA
MC
RAM DIMM
RAM DIMM
CN11
CODE DIMM
CN10
ROM DIMM
IPL/FONT ROM
25128
CN12
DL10019C
PBUS
M51953
op44
NM93CS56N
Controller Board Operating Principles
Table 2-1. Specifications (AcuLaser C2000)
Location
IC1 266MHz (outside clock 66.6666MHz) R5000A
• ASIC MR64
IC2 Connected to CPU and controls access to the
memory and peripheral devices.
• ASIC IORB
IC4
Connects MR64 and IOC3.
• ASIC IOC3
Interface I/C
IC5 - Panel
- Timer
- Parallel I/F, Type-B I/F
• New video ASIC VLP1a
- Color laser printer video I/F
- Engine I/F
IC6
- Improve the half tone gradation
- Color conversion
- Zip / unzip function
S0 JEDEC compliance, 32MB, 64bits, 168pin, SPD
S1 RAM expansion slot
• Program ROM
CN2
Board assembly, memory, C269PROG
(Slot0)
• Expansion font
CN3, CN4
• EPGL program
IC15, 16 44 pin SOP package
Serial EEPROM
IC21
- Stores printer setting
IC Network control IC
CN1 (for HDD connection)
• RESET IC
IC3
Reset this controller.
Serial EEPROM
- Network controller initialization setting
IC26
- Stores MAC address
- Stores hardware revision
Revision E
Note
101