Connection Diagram (M337Xfd_M387Xfd_M387Xfw_M407Xfr_M4072Fd) - Samsung ProXpress M337x Service Manual

5. System Diagram

5.3. Connection Diagram (M337xFD_M387xFD_M387xFW_M407xFR_M4072FD)

3.3 V 3.3 V_ Cover_Open
Front Cover
Micro Switch
HVPS
Supply
DEV
THV
OPC MHV
Va ristor
S
M
D
FUSER
BIAS DRUM
T
DEVELOPER Unit
SMPS
INLE T FUS E R
INLET
5-3
1 5V_S US P
P AR ALLEL
2 N.C
3 GND
OP TION
4 5V_S US P
24VS
1 24 VS
24VS 12
2 GND
GND 11 3.3V
3 THV_ R E AD
THV_R E AD 10
4 nTHV_ E N
nTHV_E N 9
5 P WM_THV
P WM_THV 8
6 P WM_DE V_ DC
P WM_DE V_ DC 7
7 P WM_MHV
P WM_MHV 6
8 P WM_FUS E R _B IAS
P WM_FUS E R_B IAS 5
9 GND
GND 4
10 GND
GND 3
11 3 . 3V
3.3V 2
3 .3V_Cover_ Open 1
12 3 . 3V_ C ove r_Ope n 1
3.3V_ C ove r_ Ope n 1
FAN MAIN
1 GND(FB )
2 N. C
3 FAN_ MAIN
1 GND
CRUM 2 S C L1
S DA1
3
3 . 3V_ C R UM
4
CRUM I/F PBA
N.C 6
N.C 5
Z-CRUM GND 4
1 GND
S C L 3
2 S C L 1
3. 3V_C R UM 2 3 3 .3 V_ C R UM
S DA 1
4 S DA
FAN
1 24VS
F AN _S MP S (F/ B)
2
SMPS
GND 1 24 VS
5 GND
2
24 V OFF 4
24V OFF
R e la y 3 R e la y _AC _ON
3 CN 24 (2mm )
24 VS 4 24VS THE RM
2
Fus e r ON
5 1 Fus e r ON
FUSER ON
1
5 V_S MP S 1 5V_S MP S
2
GND 2 GND
3
24 V1 24V1
3
4
GND 24V GND
4
5V_SMPS
The rmistor1
FUSER Unit
The rmoSta t
OP E_ LC D
LCD (2-Line )
LSU
(Dual Beam )
CN17(FFC 1mm)
CN18
(1 . 5mm )
LS U_ IF
OP E I/F(2lLINE )
EEPROM
(32KB)
MAIN
A1500
MAIN CLK
12 MHz
RTC CLK
32.7KHz
US B 2.0
CN31(2mm) CN27 (1.5 mm) CN 7 (2mm ) CN2( 1.5mm )
C N19(2mm )
Cover Open E XIT OUTBIN FULL
MAIN MOTOR MP
S E NS OR S E NS OR COVE R OP E N
CL CL CL
Cove r
Pickup Re gi
MP MP Exit Pa pe r
Ope n
Clutch Clutch
Clutch Se nsor Se nsor Outbinfull
Se nsor
Se nsor
Ma in Motor
OP PANEL
(LED)
CN9
(1 . 5 mm )
OP E I/ F(LED)
24 V1
1
24 V1
2
DRAWER CN
5V_ S US P
3
DDR3 DIMM
nR S T_ S C F
4
S C F_ TXD
(128MB) 5
S C F_R XD
6
nS C F_OP R
7
_R E Q
8
DDR3 DIMM GND
9
GND
(256MB) GND 10
ML-4210/15 ND
NAND FLASH
MX0P 1
(128MB) MX0N 2
MX1P 3
MX2P 4
MX2N 5
MX1N 6
25 MHz
MX3P 7
MX3N 8
25 MHz
GND 9
LE D1 10
LE D0 11
Ne twork 3.3V_P S 12
GND 13
GND 14
RTL8211E
VB US 1
DM 2
DP 3
GND 4
USB HUB
CN6(2mm)
CN16
CN28(2 mm)
AIR
SENSOR USB_IF
TE MP
Ambie nt
Te mp
Se nsor
Cove r
EMPTY FEED REGI
Ope n WLAN
Se nsor Se nsor Se nsor
Copyright© 1995-2013 SAMSUNG. All rights reserved.
1 N.C
2 OP T_nC MDR E Q
3 N.C
4 N.C
5 GND
6 GND SCF
7 GND
8 GND
9 GND
10 2 4V
11 2 4V
12 2 4V
13 5 V
14 5 V
15 5 V
16 OP T_nR E S E T
17 OP T_R XD
18 OP T_TXD