Service manual

FO-DC500U
4 – 1
CHAPTER 4. DIAGRAMS
[1] Block diagram
Lithium Battery
+5V/+24V
Power supply Unit
SH7706(SH-3) SCIF RS-232C
Driver
external 33MHz
Only for Firmware Download from PC
Program Memory
16
(No Production)
Operation Panel Unit
&
Large LCD Module
Entry Data Memory
: 4.7" QVGA (B/W)
NOR Flash 4MB
16
New ASIC-1 Panel PWB
Working Memory
("COSMOS")
:
Tact SW
SDRAM
16
• MMR CODEC<1ch>
16MB • JBIG CODEC <2ch>
• SDRAM Controller
Backup Memory
8 • Image Processor
16
Page Memory
Scanner
SRAM 32KB
: up to 400dpi/B4
SDRAM 8MB 10.1"/30ppm
Option (FO-8MK)
based on LC821033
B4 CIS
Memory PWB Image Memory
8 • Run length Converter
:
203dpi(8pixel/mm)
Image Memory
NAND Flash 8MB
• Panel Controller
NAND Flash
8 • Motor Controller Scan Mechanism
8MB
• CPU I/F, Mapper (Stepping Motor)
• GPIO port
serial
RTC(Backup)
• Print Data Processor SM8578BV
LIU PWB MODEM(Line1)
8
• ECC Code Generator
HSYNC,TOD etc
Printer PWB
MINOLTA NC-L601/16ppm
Line-1 FM336Plus
(PCU Output)
(MINOLTA CPU on board)
: 406 x 391dpi(Copy/Fax)
: 600 x 600dpi (NT-Print)
New ASIC-2
("SPIDER")
16
• RTC I/F
SCI & PCU-input
• SCI ch0(for PCU)
• SCI ch1(for PCL)
• Video I/F Switch
• GPIO
• DPO Bus Switch
(Arbitrator)
•
Buzzer Clock Generator
Main CPU
133MHz
SANYO IP CORE
USER LOGIC
PC
Control PWB
16
LCD Controller
SED1374F0A
Network Printer Kit
(PCL Board)
Option (FO-NP1)
SCI & Video
PREQ/PACK
DPO Bus
16
16
DPO Bus
LAN Network Interface Kit
(LAN Card)
Option (FO-NL1)