Electrical Section - Sharp AR-FX7 Service Manual

[11] ELECTRICAL SECTION

1. Block diagram
A. Main block diagram
COPIER
LIU PWB
SILICON DAA
LINE
PSUED RINGER
(JAPAN ONLY)
EX TEL
Speaker
Handset
(Japan only) ADD-ON MEMORY
(AR-MM9)
8MB
FAX UNIT
IMAGE PROCESSING
IMAGE PROCESSING GATE ARRAY
SRAM CONTROL
SCANNING PROCESS FLOW
VERTICAL
SCAN
SCANNING
I/F
2/3X
2/3X
Reso-
IMAGE
PRINT lution
3 x 3
ROTA-
I/F con-
TING
version
PRINT PROCESS FLOW
CPU
(SH7709A)
WORK
MEMORY
SDRAM
MEM BACK UP
16Mbit x 2
BACK UP
ORY MEMORY
MEMORY
back SRAM
SRAM
up 2Mbit
2Mbit x 2
FAX IMAGE
MEMORY
FLASH ROM
16Mbit
MODEM
MN195006-E
VOICE IC
SI-3000
Program
HANDSET
MEMORY
(Japan only)
CONNECT OR
ADD-ON
BUS
MEMORY
BUFFER
CONNECT OR
AR-FX7 ELECTRICAL SECTION 11 - 1
FAX MAIN PWB
MEMORY
SRAM 1Mbit
VERTICAL
IMAGE
SCANNING
SDRAM ROTATING
1/2X
CONTROL
CPU
I/F
PAGE
MEMORY
SDRAM
128Mbit
SYSTEM CONTROL GATE ARRAY
DMAC GATE
CPU
CON- ARRAY
I/F
TROL
VOICE MODEM
RTC
IC CON-
I/F
I/F TROL
Program ROM PWB
PROGRAM
FLASH ROM
(JAPAN)16Mb
x 2
(EX)8Mb x 2
MN
86065
I/F
FAX GA
I/F
SRAM
1Mbit
SRAM
CON-
I/F TROL
MN
86065
I/F
MN86065
I/F
CODEC
CEDEC IC MEMORY
MN86065 SRAM
1Mbit