Service manual

EPSON Stylus Pro 10000/10000CF Revision B
Operating Principles
C
362MAIN board 83
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.
The block diagram of the C362MAIN board is shown below.
Table 2-6. C362MAIN board main integrated circuit explanation
Name Location Function
CPU (H8S/2670) without Self-
containing FLASH ROM
IC1
• 32 bit RISC-CPU
Clock frequency=24.0MHz
ASIC (E05B83Bx) IC10
• 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 memory
(MBM29LV800TA-70 PF)
IC9
• FLASH ROM and EEP ROM / OTPROM /
MASK ROM (8Mbit)
Control program housing
D/A correction value, user command,
factory command preservation
DRAM (81v18165 B) IC3
• 16M bit DRAM
EEPROM (ATMEL950) IC5
• Serial EEPROM
Head drive D/A factory correction value,
USB-ID factory command
EZ1085 CM IC7
• +3.3V regulator
9AE6CHK (LV61284) IC4
• Parallel I/F driver
LCX 74,0.08 IC11
• DMA hand shake control
PST592JMT IC6
• Monitoring 3.3V and reset signal generation
EEPROM IC2
• System firmware
Table 2-6. C362MAIN board main integrated circuit explanation
Name Location Function
IC9
FLASH-
ROM
IC2
P-ROM
IC3
D-RAM
IC1
CPU
JUMPER
IC11
DMACTRL
IC5
EEPROM
OSC
IC10
I/O
CONT
ROLL
ER
CN7
USB I/F
CN4
TYPE-B2
I/F
CN3
CENTRO
I/F
CN5
TYPE-B1
I/F
IC4
P10
CN1
Connent to
C362DRV
board
CN2
Connent to
HJFK
board