Operating Principles
Operating Principles of Electric Circuitry
2.3.3.4 Main Board Circuit Configuration (Printer and Common
Section)
IC
Location
Functions
SOC in CPU core
IC12
Name: E01A56B*: by NEC (CPU: NA85E2S)
Built-in iLB RAM 32 Kbyte, Built-in dLB RAM 16 Kbyte
Built-in iCACHE 8 Kbyte, Built-in dCACHE 8 Kbyte
Operating frequency:
CPU core
192 MHz (SSCG)
NPB macro (UART, Timer C/D, prescaler)
48 MHz
User logic (Scanner / Printon) 48
MHz
(SSCG)
User logic (Printer)
48 MHz
Local SDRAM
96 MHz (SSCG)
External bus clock
64 MHz (SSCG)
FLASH ROM
(64Mbit)
IC2
Name: MBM29PL64LM (Fujitsu) or the equivalent
Application: Program
Type: Flash memory chip powered by +3.3 V only, the data on which
can be erased totally or partially in sectors
Capacity: 64 Mbit(R4CD120)
Package: 48 Pin TSOP
Bus width: 16 bits
FLASH ROM
(32Mbit)
IC1
Name : MBM29PL32TM/BM (Fujitsu) or the equivalent
Application : Data / program
Type : Flash memory chip powered by +3.3 V only, the data on which
can be erased totally or partially in sectors
Capacity : 32Mbit
Package : 48 Pin TSOP
Bus width : 16 bits
SDRAM
(CPU bus)
IC11
NameK4S561632*(SAMSUNG) or the equivalent
Application : System memory
Type : 4 M Words x16 bits x 4-bank SDRAM
Bus width : 16 bits
Power supply : 3.3 V single power supply
Capacity : 256 Mbit(4Mx16bitx4bank)
Package : 54 pin TSOP
Operating frequency : 133 MHz (CL =2) or higher
SDRAM for
image processing
(256-Mbit chip
and 128-Mbit
chip)
IC13
(256)
IC14
(128)
Name: K4S561632*(SAMSUNG) or the equivalent (256 Mbits)
K4S281632*(SAMSUNG) or the equivalent (128 Mbits)
Application : Work memory for copy function
Bus width : 16 bits
Power supply : 3.3 V single power supply
Capacity: 256 Mbit (4 M x 16 bits x 4 banks) (256 Mbits)
128 Mbit (2 M x 16 bits x 4 banks) (128 Mbits)
Package : 54-pin TSOP
Operating frequency : 133 MHz (CL =2) or higher
RTC circuit
IC3
RTC9824: by Seiko Epson
Composite IC for reset function, RTC and EEPROM
CR/PF/Pump
motor drive
circuit
IC7
Sleep mode is entered for power-saving.
Drive voltage : 42 V
±
5%
Drive IC: M63160J (RENESAS)
CR motor
Drive system : DC motor control
Control method: PID feedback method
Current detection resistance: 0.36
Ω
±
1% 1
Ω
PF Motor
Drive system : DC motor control
Control method: PID feedback method
Current detection resistance: 0.36
Ω
±
1% 1
Ω
Pump motor
Excitation method: 2-2 phase / 1-2 phase / 4W1-2 phase
Drive system : Bipolar driving
Current detection resistance: 0.36
Ω
±
1% 1
Ω
APG/Pressure/
ASF motor drive
circuit
IC8
Sleep mode is entered for power-saving.
Drive voltage : 42V
±
5%
Drive IC: M63160J (RENESAS)
APG motor
Drive system : DC motor control
Control method: PID feedback method
Current detection resistance: 0.36
Ω
±
1% 1
Ω
Pressure motor
Drive system : DC motor control
Control method: PID feedback method
Current detection resistance: 0.36
Ω
±
1% 1
Ω
ASF Motor
Excitation method: 2-2 phase / 1-2 phase / W1-2 phase / 2W1-2 phase /
4W1-2 phase
Drive system : Bipolar driving
Current detection resistance: 0.36
Ω
±
1% 1
Ω
DAC circuit for
motor driver Vref
IC6
Name : M62384FP (Mitsubishi)
Application : Vref generation for motor driver ICs
Head drive
circuit
IC5
Drive voltage : 42 V
±
5%, VH is supplied to the head drive and control
circuit.
Head drive control through the control port of SOC.
Head drive control IC: E09A54RA (Sony)
IC
Location
Functions
Содержание Stylus Photo RX700 Series
Страница 1: ...EPSON StylusPhotoRX700 Scanner Printer Copier SERVICE MANUAL ECOS SEMF05001 ...
Страница 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 17: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 51: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 64: ...EPSON Stylus Photo RX700 Revision A Troubleshooting Overview 64 Flowchart 3 2 Printing Processing ...
Страница 76: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 133: ...C H A P T E R 5 ADJUSTMENT ...
Страница 146: ...C H A P T E R 6 MAINTENANCE ...
Страница 163: ...C H A P T E R 7 APPENDIX ...
Страница 175: ...Model PM A900 Stylus PHOTO RX700 Board C583Main Sheet 1 3 Rev H ...
Страница 176: ...Model PM A900 Stylus PHOTO RX700 Board C583Main Sheet 2 3 Rev H ...
Страница 177: ...Model PM A900 Stylus PHOTO RX700 Board C583Main Sheet 3 3 Rev H ...
Страница 178: ...Model PM A900 Stylus PHOTO RX700 Board C583 PNL PNL B Sheet 1 1 Rev C ...
Страница 179: ...Model PM A900 Stylus PHOTO RX700 Board C583PSB Sheet 1 1 Rev H ...
Страница 180: ...Model PM A900 Stylus PHOTO RX700 Board C583PSE Sheet 1 1 Rev F ...
Страница 185: ...For 220V 240V 401 400 03 02 01 100 Rev 01 C583 ACCE 001_Overseas PM A900 EPSON STYLUS RX700 NO 1 ...