E17
40838301TH Rev.1
A3 - 3
A3.1.2
E17 Circuit Diagram
1.
Block diagram
The circuit diagram shown on page 2/16 consists of Flash memory, Mask ROM, IC3 (Real
time clock IC) and Back up battery circuit.
Figure A3.1.2 shows the block diagram of Flash memory, Mask ROM and Real time clock.
2.
Function
1)
Flash memory (FLS)
Flash memory (electrically erasable and programmable device) is used for the main
software program which is stored in EP-ROM of the current OKIFAX. Other than the
function of EP-ROM, Flash memory is also used for the user data area instead of
SRAM chips.
•
256 KByte x 16 bit Flash memory x 1 (FLS)
Used for work area, report recording etc.
2)
Back-up battery circuit
•
The non-rechargeable lithium battery supplies voltage to real-time clock IC at AC
main interruption.
3)
Real-time clock IC (IC3)
IC3 is a real-time clock IC used as a timepiece to display the data and time in year,
month, day, hour, minute, and second units. Its input/output signals are the 4-bit data
bus (AD0 - AD3), 4-bit address bus (A1 - A4) and the control signals, RTCCS, MDMRD-
N and MDMWR-N which perform a CPU-controlled read operation (M/D/Y H:M, Data
read) and write operation (M/D/Y H:M, Data setting).
4)
MASK
•
256 KByte x 16 bit Flash memory or Mask ROM x 1 (MASK)
Used for program storage
Figure A3.1.2 Block Diagram of FLS, MASK and Real Time Clock
MASK
IC3
A0 to A18
RMCS1-N/
RMCS0-N
MDRD-N/
MDWR-N
AD0 to AD15
AD0 to
AD3
A0 to A3
FLS
Back-up
battery
circuit
X2
32.768KHz
Содержание OKIFAX 5400
Страница 7: ...40838301TH Rev 1 CHAPTER 1 GENERAL INFORMATION...
Страница 46: ...40838301TH Rev 1 CHAPTER 2 INSTALLATION PROCEDURE...
Страница 130: ...40838301TH Rev 1 CHAPTER 3 BRIEF TECHNICAL DESCRIPTION...
Страница 138: ...40838301TH Rev 1 CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY...
Страница 157: ...40838301TH Rev 1 CHAPTER 5 ADJUSTMENTS...
Страница 162: ...40838301TH Rev 1 CHAPTER 6 CLEANING AND MAINTENANCE...
Страница 189: ...40838301TH Rev 1 CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5400...
Страница 240: ...40838301TH Rev 1 CHAPTER 8 DIPSWITCHS SETTING TABLES...
Страница 353: ...40838301TH Rev 1 Appendix B Descriptions of Print Operation First Edition August 1999 Oki Data Corporation...
Страница 375: ...40838301TH Rev 1 Appendix C Circuit Diagram and Parts List OK IFAX 5400 First Edition August 1999 Oki Data Corporation...
Страница 380: ...40838301TH Rev 1 D 2 SECTION 1 CABINET ASSEMBLY 5...
Страница 382: ...40838301TH Rev 1 D 4 SECTION 2 CONTROL PANEL ASSEMBLY...
Страница 384: ...40838301TH Rev 1 D 6 SECTION 3 PRINTER ASSEMBLY 51...
Страница 387: ...40838301TH Rev 1 D 9 SECTION 4 BASE ASSEMBLY 30 37 36 39 40 5...
Страница 390: ...40838301TH Rev 1 D 12 SECTION 5 SCAN UNIT...
Страница 392: ...40838301TH Rev 1 D 14 SECTION 6 PAPER GUIDE U ASSEMBLY...
Страница 394: ...40838301TH Rev 1 D 16 SECTION 7 CABLES 10 11 19 12 20 21...
Страница 396: ...40838301TH Rev 1 D 18 SECTION 8 OPTION TELEPHONE US...
Страница 399: ...40838301TH Rev 1 D 21 SECTION 8 OPTION TELEPHONE UK ITA NOR DEN BEL...
Страница 402: ...40838301TH Rev 1 D 24 SECTION 8 OPTION TELEPHONE HOL GER FRA SWITZ AUT INT L...
Страница 405: ...40838301TH Rev 1 Appendix E Board Layout OKIFAX 5400 First Edition August 1999 Oki Data Corporation...
Страница 424: ...40838301TH Rev 1 F 15 5 2 PCB Layout TQSB 2PCB PU FG CONTROLLER MOTOR DRIVER SEN2 MOTOR OSC SEN1...
Страница 425: ...40838301TH Rev 1 F 16 Figure 6 1 6 PARTS LIST SECTION1 CABINET CASSETTE ASSEMBLY F 16 1 4 P 6 5 8 7 3 O 1 2...
Страница 426: ...40838301TH Rev 1 F 17 SECTION2 MECHANICAL ASSEMBLY Figure 6 2 F 16 2 9 A 0 C M L D N E F G H U V T S Q R J I B K A A B B...
Страница 428: ...40838301TH Rev 1 Appendix G RMCS SYSTEM MANUAL For Model 20 First Edition August 1999 Oki Data Corporation...