Operating Principles
Operating Principles of Electric Circuitry
2.3.3.5 Main Board Circuit Configuration (Card Section)
USB IF circuit
(USB 2.0)
(IC12)
Specification: Universal Serial Bus Specification Revision 2.0
Receive mode: High/Full speed mode
Receiving system: Bulk transfer / control transfer
Data reception capacity:
About 48.0 MB/s max. (bulk transfer in high speed mode)
About 1.15 MB/s max. (bulk transfer in full speed mode)
Control circuit: 2.0 USB controller SOC (E01A56B*)
Transceiver IC: PHY incorporated in SOC is used
Crystal oscillator: 48.000 MHz
±
500 ppm 45-55% duty
USB IF circuit
(USB 1.1 Host)
(IC12)
Specification: Universal Serial Bus Specification Revision 1.1
Transmission mode: TPS2051A (by TI: IC 4) is mounted as the
overcurrent sensing circuit and power supply control circuit of the USB
port.
Data transmission capability: About 1.15 MB/s max. (bulk transfer in
full speed mode)
Control circuit: USB 1.1 Host controller in SOC (E01A56B*)
Crystal oscillator : 48.000 MHz
±
500 ppm 45-55% duty
Power supply
controller for
USB 1.1 Host
IC4
Name: TPS2051A(TI)
Package : 8-Pin PSOP
Function: Current limiting power control 1 CH
The control signal is active at high level.
Energy save
circuit
When the PSC terminal is connected to GND via the 20 V Zener diode,
the Power Supply Unit enters the low-power mode.
DC-DC
converter circuit
IC700
Name: FA 7728 F (Fuji Electric Device Technology)
Application: 3.3 V power generation circuit for logic
1.5 V power generation circuit for logic
Input voltage range : 15 V~ 44 V
Capacity: 3.3 V 0.8 A (Max 1.2 A)
1.5 V 0.8 A (Max 1.2 A)
Oscillation
circuit
Model: Q22FA23800046
Element: Crystal oscillator
Frequency: 48.000 [MHz]
±
500 ppm or less
Remarks : 45-55% Duty
IC
Location
Functions
IC
Location
Functions
ASIC for card
section control
IC10
Name : E09A56B* (by NEC)
Manufacturing process: 0.35Éþ cell base IC CB9-VX
Package: 144 pin QFP
Supply voltage: 3.3 V single power supply
Operating frequency: 64 MHz (bus clock) and 48 MHz (internal clock)
Controls the following functions of the card section:
• PCMCIA (CF) I/F
• SSFDC (SmartMedia) I/F, xD-Picture Card I/F
• SD I/F
• Memory Stick I/F
• General-purpose I/O ports
• UART 1 (for Bluetooth debug and authentication)
Compact Flash
I/F
CN27
Conforming to PCMCIA Rev.2.1/JEIDA Ver.4.2 standard
Supporting PCMCIA-ATA cards
CF Socket Power Controller
Name : TP2041B(TI) IC17
Package : 8-Pin PSOP
Memory Stick
I/F
CN26
Conforming to Memory Stick Standard Format Specification Version 1.3
Transmit and receive: 8 bytes (4 half words) for each, incorporating Data
Buffer
Transfer clock: 12 MHz
CRC circuit incorporated
Automatic command execution function
SmartMedia/xD
card I/F
ECC numeration circuit conforming to SSFDC Physical Format
Specification Version 1.21 incorporated
SD card I/F
SD Memory Card
• Conforming to SD Memory Card “Physical Layer Specification” Rev. 1.0
• Supporting 4-bit SD bus mode interface
• SPI mode is not supported.
• Supporting SD Memory Card ACMD for authentication
MultimediaCard
• Conforming to MultiMediaCard “System Specification” Rev. 2.2
• Supporting 1 bit MultiMedia Card mode interface
• SPI mode is not supported.
LED circuit
(Card section)
LED (GREEN) : SML-A12MTT86(Rohm)
LED : 1
Drive current: 3 mA
Drive circuit: General-purpose port of E09A56B* on the Main Board
Current limiting resistance: 750
Ω
At Reset: All the LEDs go out
Function : Card access function
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 ...