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4
1
System Description
1.1.
Electrical Circuit Explanation
1.1.1. Block Diagram
DRAM8MB
DRAM8MB
DRAM BOARD
ADC
CPU
SH2
SH7041
Processor
28 MHz
DRAM16MB
Amp
LM
ADF
(for DP-150A/PA/FP/FX)
ADU (for DP-150FX)
Program
2MB FROM
• +5V1
• +5V2
• 3.3V
• +12V
• -12V
• +24V (SVP)
• +24V(PVP)
• +5V2
• 3.3V
• +12V
• -12V
• +24V (SVP)
• +24V(PVP)
HVPS
3.3V
3.3V
12V
-12V
5V2
5V2
24V
12V
LD
PM
LSU
APC
5VLD
Drum
LVPS&ACD
1284
IF
FAX
(for DP-150FP/FX)
FAX MEMORY IF
FAX Memory
2 or 4 FROM
2 or 4 FROM
MM
FM
SOL
PESN
RRSN
PFSN
PFOSN
PESN
PFSN
PFOSN
PESN
RRSN
PFSN
PFOSN
SOL
DOSN
5V2
5V2
HPSN
AFOSN
DXOSN
SOL
SOL
DXISN
FAX
2MB FROM
5V1
5V2
RST
5V2
3.3V
5V2
5V2
5V2
SRAM
32KB
DSP
MN195004
MODEM
TR88017
NCU
Program
512KB FROM
SP
PC
Energy Saving SW
TESN
TH
TS
NDSN
CODEC
PM2
GA3
IEEE1284
SRAM
32KB
SOL
HPESN
FUOSN
SOL
PCSN
5V2
5V2
12V
5V2
5V1
5V1
5V2
5V1
5V2
SRAM
32KB
SOL
SOL
SOL
3.3V
CPU
Print
TMP86CH06U
SRAM
128KB
SM
CODEC
MN86064
5V2
Program
2MB FROM
5V2
ADF
RST
5V1
GA1
GA2
Laser Safety
SW
SW
D/A
CCD
Printer
Control Panel
Control Panel
LCD
Scanner
CCD PC Board
Inverter
Sort
Analog
Paper Feed Unit
Lamp
Discharge
Lamp
Fuser Lamp
2nd Paper Feed Module
16Hz Detected
Telephone Line
DP Signal
Transformer
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