Page 1
Samsung Electronics 8-1
08- Bloack Diagrams
8-1 WIRING DIAGRAM
MP
CLUTCH
PTL
MP
SENSOR
TONER
SENSOR
1
2
123
123
1
2
12123
123
OPTION
SCF
MOTOR
PICK-UP
CLUTCH
CASSETTE
SENSOR
DCU
123
4
123
4
123
4
123
4
123
4
1
2
1234567
8
1234567
8
24VS2
5V
MP-SENSOR
DGND
5VS
TONER
AGND
CN502
CN504
CN505
CN506
CN503
CN501
JOINT
BOARD
123456789
1011121314151617181920
2143658
7109
121114131615181720
19
5V
AGND
24VS2
STS-SCF
CMD-SCF
OPT-CLK
SCF-READY
DGND
A/AB
/B
24V
CAST1
CAST2
CAST3
DGND
CN2
CN3
CN5
CN4
SCF
BOARD
CN1
5V
DATA
CLK
DGND
LCD
CN10
PANEL
CN2
CN1
123456789
10
10
987654321
5V
DGND
LCD_D7
LCD_D6
LCD_R_S
LCD_D5
LCD_D4
LCD_E
2143658
7109
121114131615181720
19
123456789
1011121314151617181920
LCD-E
5V
LED1
LED2
LCD_D4
LCD_D5
LCD_D6
LCD_D7
LCD_R9
LCD_DRV E
P_SW1
P_SW2
P_SW3
P_SW4
P_SW5
P_SW6
P_SW8
P_SW7
DGND
DGND
J1
J11
Video
Controller
123456789
10111213141516171819202122232425262728
2143658
7109
1211141316151817201922212423262528
27
DGND
/EBSY
/EXITPAP
/EMSG
/PRINT
/CCLK
CPRDY
/VDI
/READY
/PSYNC
NC
/HSYNC
/CMSG
5V
5V
5V
5V
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
5V5V5V
CN6
CN7
CN5
ENGINE BOARD
CN4
CN8
CN3
CN2
CN1
CN10
CN9
5V
5V
MP-SOLENOID
5V
PTL
5Vs
SCF-READY
24VS2
STS-SCF
24VS2
MP-SENSOR
A-GND
TONER
A-GND
CMD-SCF
D-GND
OPT-CLK
D-GND
Thermister_2
Reserve
TP1
TP2
TP3
TP4
TP5
123
4
123
4
123456789
10111213141516
2143658
7109
1211141316
15
OPC-GND
THV
DOC. BLADE
DEV.
MHV
TRANSFER ROLLER
DEV.
DCU
5V
DCU DATA
DCU _CLK
D-GND
SMPS
24VS2
FUSERON
A-GND
5Vs
A-GND
5V
A-GND
5V
D-GND
5V
D-GND
D-GND
24VS1
24VS1
24VS1
24VS1
123
4
123
4
1
2
1
2
1
2
1
2
123
123
12345
6
12345
6
123456789
101112131415161718
CN5
1
2
1
2
1
2
1
2
123
123
123
123
COVER SW
(5V)
COVER SW
(24V)
FUSER
INLET
(AC IN)
CN4
CN2
CN1
CN3
5V
5Vs
24V
24VS1
CASSETTE
SENSOR
Thermister
DUPLEX
SOLENOID
FAN
MAIN
MOTOR
LSU
STACKER
SENSOR
DEV.
SENSOR
12345
6
12345
123
123
CAST-SENS1
CAST-SENS2
CAST-SENS3
D-GND
24VS2
24VS2
/A
24VS2
A
/B
24VS2
B
7 N.C
D-GND
VDO
LDON
D-GND
5VS
HSYNC
LSU CLK
LREADY
PMOTOR
A-GND
24VS2
DGND
STACKER
DGND
KEY-DEV
Page 2
Samsung Electronics8-2
8-2 Engine Controller Block Diagram
ML7300 ENGINE BLOCK DIAGRAM
SENSOR
- Cassette
- Pempty
- Exit
- Feed
- Toner
- Cover
- Duplex
- Scf-status
- Scf-ready
PROGRAM
MEMORY
(27C256)
74HC245
74HC245
2nd cassette
Feeder
(option)
VIDEO
CONTROLLER
CPU
(KS88C4316)
12MHZ
ADC
PWM
ADC
Thermister
value
HVPS control
- THV
- DOCTOR BLADE
- DEV. BIAS
- MHV
STEP MOTOR
DRIVER
(SLA7026M)
SOLENOID DRIVE
- PICK-UP CLUTCH
- MP CLUTCH
- DUPLEX
FUSER CONTROL
PTL
FAN
LSU
A0 - A15
D0 - D7
Page 3
Samsung Electronics 8-3
8-3 Video Controller Block Diagram
Video Controller Board Block Diagram
ROM
72PIN SIMM
29F800
8Mbit Flash Memory
29F800
8Mbit Flash Memory
Mask Font ROM
KM23C8105DG
Mask Font ROM
KM23C8105DG
RD_FLASH
WR_FLASH1,2,3
*
4
3
RCS(0:3)
4
2
74F32
74F04
nWR
F_WR_E
DRAM
72PIN SIMM
72PIN SIMM
64Mbit DRAM
KM416C4104BS-5
64Mbit DRAM
KM416C4104BS-5
Memory Data Bus
DRAMD(0:31) 32
Memory Address Bus
DRAMA(0:11)
11
nDRAMCAS(0:3)
nDRAMRAS(0:3),nDRAMWE
9
4
EIRQ(0:3)
6
nIOCS(0:5)
*
*
74F14
RESET
*
TL7705
Supply
Voltage
Supervisor
ACK
,BUSY,SELECT,ERROR,FAULT
*
SELIN
STROBE
AUTOFD
INI
*
*
*
*
5
4
8
PD(0:7)
Centronics Connector
Engine I/F Connector
PANEL 20Pin
LCD Display Panel
Engine Controller B’d
Computer
SPGP1
32
ADDR(2:22)
21
A20
DATA(0:31)
ADDR(0:31)
DATA(0:31)
Regulator
3.3V
22
32
32
CPU
POWER PC
MPE603E
100MHz
TS
,TT1,nTSBT,TSIZ(0:2)
*
nTA,RST*,INT*,nTS,nBG
SYSCLK
FS741
Frequency
Scaling EMI
Attenuator
OSC-CLOCK
50MHz
ADDR(2:11)
10
DATA(24:31)
8
IOCSO,nRD,nWR
3
Video (Data)
*
nLSYNC
VCLK
RST
*
*
ASIC
(Hyper)
nFSYNC
OSC-CLOCK
78.45496MHz
nWAIT
nWR
nRD
INT
*
nRD
nWR IOCSO
74F32
DATA(0:15)
DATA(0:15)
16
16
ADDR(2:18)
DATA(16:31)
nWAIT
C
o
n
n
e
c
t
o
r
74ACT245
Transceiver
74HCT273
D Flip-Flop
nRD
nWR
TT1
BRDIN
IOCS1
IOCS2
EIRQ2
*
93C66
4Mbit
serial
EEPROM
3
9
8
DATA(24:31)
8
IOCS3,EIRQ1
ADDR4,5,15
nRD,nWR
USB_RST
,V_BUS
*
Co
nn
ec
to
r
OPTION
Net
Work
Card
OPTION
Local
Talk
&
Serial
OPTION
IrDA
&
Serial
Page 4
Samsung Electronics8-4
MEMO
Loading...