C34
OF5750/5950 Series January 2001
A3 - 38
Block diagram
LSI, IC, and Memory
• X201 (Crystal)
* Crystal oscillator: 24.5760 MHz
• IC201 (MN195004MFN-1)(Modem data pump)
This LSI provides an interface with the host CPU. It is the heart of the modem. It consists of
digital signal processing circuits.
• IC202 (TR88017S) (Analog front end)
An analog front end LSI that provides an interface between the line controller and the
MN195004. It consists of analog circuits. It has two channels of 16-bit A/D and D/A convert-
ers.
• FLS201 (4MFASH memory)
A memory for storing the MN195004MFN-1 program. * This program cannot be loaded by
the PC loading method.
• RAM201 (High-speed 1MSRAM)
A memory for storing the MN195004MFN-1 program.
The modem operates by loading the program from the flash memory to the SRAM.
• IC205 (Analog switch IC)
Gain control
Power supply voltages
• D5 VD
• 5 VA/-8 VA
Modem board
IC203
IC203
IC204
IC205
IC204
NCU
board
MCUT board
RAM201
(1M SRAM)
CPU
IOGA
Connector CN11
Connector CN201
IC201
(MN195004MFN-1)
IC202
(TR88017S)
FLS201
(4M FLASH
ROM)
X201
(X'tal)
Monitor
circuit
Summary of Contents for OKIFAX 5950
Page 9: ...CHAPTER 1 GENERAL INFORMATION ...
Page 101: ...OF5750 5950 Series January 2001 1 92 1 6 21 NIC Information ...
Page 107: ...CHAPTER 2 INSTALLATION PROCEDURE ...
Page 264: ...CHAPTER 3 BRIEF TECHNICAL DESCRIPTION ...
Page 272: ...CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY ...
Page 277: ...OF5750 5950 Series January 2001 4 5 Appearance of the OKIFAX 5750 5950 ...
Page 302: ...CHAPTER 5 ADJUSTMENTS ...
Page 306: ...CHAPTER 6 CLEANING AND MAINTENANCE ...
Page 341: ...CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5750 5950 ...
Page 400: ...Appendix A PC Board Descriptions and Operation ...
Page 491: ...Appendix B DescriptionsofPrintOperation ...
Page 513: ...Appendix C Not used at this time ...
Page 516: ...OF5750 5950 Series January 2001 D 1 Section 1 CABINET ASSEMBLY 27 28 29 ...
Page 518: ...OF5750 5950 Series January 2001 D 3 Section 2 CONTROL PANEL ASSEMBLY 11 ...
Page 520: ...OF5750 5950 Series January 2001 D 5 Section 3 PRINTER ASSEMBLY 53 54 31 10 55 52 34 56 ...
Page 523: ...OF5750 5950 Series January 2001 D 8 Section 4 BASE ASSEMBLY ...
Page 525: ...OF5750 5950 Series January 2001 D 10 Section 5 FRAME ASSEMBLY SCANNER L 31 30 33 32 ...
Page 527: ...OF5750 5950 Series January 2001 D 12 Section 6 FRAME ASSEMBLY SCANNER U ...
Page 529: ...OF5750 5950 Series January 2001 D 14 Section 7 CABLES OPTION BOARDS ...
Page 530: ...OF5750 5950 Series January 2001 D 15 28 29 Section 7 CABLES OPTION BOARDS ...
Page 532: ...Appendix E Not used at this time ...