C362Main Board - Epson StylusPro 10000 Service Manual

EPSON Stylus Pro 10000/10000CF

2.3 C362MAIN board

The C362 MAIN board does the interface control with the host computer. The HJFK board
is installed to connector CN2 standard.
In the case that ESC/P3 unidirectional control code is received data is transferred to the
HJFK board. It outputs to connector CN1 (I/F to the C362DRV board) after converts to
ESC/P luster data with the HJFK board.
The control code other than ESC/P3 unidirectional houses printing data to D-RAM after be
transmitted to the CPU via the input/output controller and analyzed the control code.
After then, printing data is output to the C362DRV board via the input/output controller.
Table 2-6. C362MAIN board main integrated circuit explanation
Name Location
CPU (H8S/2670) without Self-
IC1
containing FLASH ROM
ASIC (E05B83Bx) IC10
Flash memory
IC9
(MBM29LV800TA-70 PF)
DRAM (81v18165 B) IC3
EEPROM (ATMEL950) IC5
Operating Principles
Function
• 32 bit RISC-CPU
Clock frequency=24.0MHz
• Printing data processing control
The command analysis
The raster riser (image data expansion
processing)
The head drive control (DAC control)
The printing timing correction control
• The memory control (DRAM/SRAM)
• I/F circuit control
Parallel I/F (IEEE1284)
USB I/F
The Type-B control
• FLASH ROM and EEP ROM / OTPROM /
MASK ROM (8Mbit)
Control program housing
D/A correction value, user command,
factory command preservation
• 16M bit DRAM
• Serial EEPROM
Head drive D/A factory correction value,
USB-ID factory command
Table 2-6. C362MAIN board main integrated circuit explanation
Name
EZ1085 CM
9AE6CHK (LV61284)
LCX 74,0.08
PST592JMT
EEPROM
The block diagram of the C362MAIN board is shown below.
IC9
FLASH-
ROM
IC1
CPU
JUMPER
C362MAIN board
Location
• +3.3V regulator
IC7
• Parallel I/F driver
IC4
• DMA hand shake control
IC11
• Monitoring 3.3V and reset signal generation
IC6
• System firmware
IC2
IC3
IC2
D-RAM
P-ROM
IC10
I/O
CONT
ROLL
ER
IC11
DMACTRL
IC5
EEPROM
IC4
P10
OSC
CN5
CN4 CN3
CN7
TYPE-B2 TYPE-B1 CENTRO
USB I/F
I/F I/F I/F
Revision B
Function
CN1
Connent to
C362DRV
board
CN2
Connent to
HJFK
board
83