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OF5750/5950 Ser
ies J
a
n
uar
y 2001
A3 - 60
G4A
G4A Board Block Diagram
ISDN driver
YTD421
HC244
1/2
HC244
1/2
HC244
1/2
HC244
1/2
AD (7:0)
ISDN controller
YTD423
PCM codec
MSM7507-01
EPLD
EPM7032LC44
CPU
SH7034
FLASH MEMORY
(512KByte)
D-RAM
(2MByte)
A (19:0)
A (16:1)
A (15:0)
D (15:0)
D (15:0)
CE, RD, MR, etc
CE, RD, MR, etc
OPDCTO, 1, 2, 3-N
OPG4DCTO, 1 ,2, 3
CUREQ-N
OPDCTO, 1, 2, 3-N
OPREQ-N, RDY-N
OPG4REQ, G4RDY
O.C
O.C
OPREQ-N, RDY-N
BOOT2
BOOT2
HOOK2
S
S
R
R
AD (15:0)
CS, ED, MR, etc
CN 1 (MCNT I/F)
CN 2 (MUPIS)
Dual port
RAM
(2KByte)
ALS244
×
2
ALS245
×
2
PCMDOWN-N
PCMOUT
PCMIN
CLK8K, 64K
HRD
LRD
HTD
LTD
PDET
A (3:0)
CS, RD, W
R
INTG4-N
12. 288MHz
19.6680MHz
BOOT2
CUREQ-N
PDOWN
Note: Driven by +5 Vs
S-side
R-side
CN3 (RJ-45)
Power
supply
detection
*
* Not mounted
Gain
controller
Internal bus
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 ...