Samsung ML-331xD - Connection Diagram

5. System Diagram
Service Manual
ML-331x/371x series
5-4
Samsung Electronics
Connection Diagram(ML-371x series)
MAIN
Chorus4
FUSER Unit
ThermoStat
Thermistor1
PaperExit
Sensor
Regi
Clutch
Pickup
Clutch
Front Cover
Micro Switch
24V
5V_SMPS
FUSER ON
24VS
3.3VS
3.3V_Cover_Open1
3.3V_Cover_Open13.3V_SMPS
DEVELOPER Unit
FAN
MAIN
FAN
SMPS
OPC MHV
DEV
Supply
THV
Varistor
T
D
S
DRUM
M
Main
Motor
MT
BLDC
Serial Flash
16MB
DDR2
SDRAM
128MB : 3710ND/DW
64MB : 3710D
EEPROM
ML-3710D/ND :
24512(Sys/Sys+N/W)
ML-3710DW
24512(Sys+N/W)
24256(Wireless)
SOL
C R U
M
Gigabit PHY
RTL8211D
25MHz
FUSER
BIAS
INLET
MP
Clutch
Cover Open
/Binful Sensor
Clock
Generator
ASM3P2863A
12MHz
MAIN CLK
USB CLK
VCLK
INLET
FUSER
THERM_1
1
2
CN6(2mm)
THERM
MOT_DIR
PWM_MOT
MOT_READY
MOT_EN
GND
MOT_BREAK
GND
GND
24VS
24VS
24VS
Pickup_CLT
24VS
Regi_CLT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN22(2mm)
MAIN MOTOR
SOL
3.3V
GND
PEAPER_EXIT
1
2
3
CN23(2mm)
P_EXIT
SENSOR
VBUS DM DP GND
1 2 3 4
CN14
USB_IF
N.C N.C MDIP3 MDIN3 MDIP2 MDIN2 MDIP1 MDIN1 MDIP0 MDIN0 3.3V GREEN_LED 3.3V YELLOW_LED GND GND
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16
CN11
NETWORK_IF
GND
5V
nKEY_POWER_SW
PANEL_RXD
nRST_PANEL
PANEL_TXD
CN1
(LCD)
OPE_IF(1.5mm)
1
2
3
4
5
6
3.3V_LSU
nHsync
GND
VDO_1_P
VDO_1_N
GND
nSH_1
nSH_2
GND
VDO_2_P
VDO_2_N
GND
nLD_ON
LD_POWER
N.C
CLK_LSU_MOT
nREADY_LSU
nLSU_MOT_EN
GND
24VS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN7(FFC 1mm)
LSU_IF
HVPS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
10
24VS GND THV_READ nTHV_EN PWM_THV PWM_DEV_DC PWM_MHV PWM_FUSER_BIAS GND GND 3.3V 3.3V_C_Open1
1 2 3 4 5 6 7 8 9
10 11 12
CN3(2mm)
HVPS
5V_SMPS GND 24V GND
1 2 3 4
CN13
SMPS
SMPS
5V_SMPS
GND
24V
GND
1 2 3 4
CN
SMPS
GND
24V OFF
Relay
24VS
Fuser ON
1 2 3 4 5
CN
SMPS
GND 24V OFF Relay 24VS Fuser ON
5 4 3 2 1
CN15(2mm)
SMPS
24VS
GND GND 24VS
1 2 3
CN12
MAIN FAN
24VS GND
1 2
CN21
SMPS FAN
12 11 10
9 8 7 6 5 4 3 2 1
GND SCL1_nCRUM SDA1_nCRUM 3.3V_CRUM
1 2 3 4
CN5
(2mm)
CRUM
EMPTY
Sensor
REGI
Sensor
MP
Sensor
3.3VS
GND
P_Empty
SENS
3.3VS
GND
REGI_SENS
3.3VS
GND
FEED_SENS
1
2
3
4
5
6
7
8
9
CN4(2mm)
SENSOR
24VS
MP_CLT
3.3VS
GND
MP_SENS
1
2
3
4
5
CN10(2mm)
MP
FEED
Sensor
3,3V
GND
Outbin_full
3.3V_C_OPEN1 3.3V_C_OPEN2
1 2 3 4 5
CN8(1.5mm)
Cover Open/outbin full
24VS GND THV_READ nTHV_EN PWM_THV PWM_DEV_DC PWM_MHV PWM_FUSER_BIAS GND GND 3.3V 3.3V_C_Open1
CN24(1.5mm)
SCF_IF
3.3V_LSU
nHsync
GND
VDO_1_P
VDO_1_N
GND
nSH_1
nSH_2
GND
VDO_2_P
VDO_2_N
GND
nLD_ON
LD_POWER
N.C
CLK_LSU_MOT
nREADY_LSU
nLSU_MOT_EN
GND
24VS
LSU
(Dual Beam)
24V 24V 24V 3.3V 3.3V 3.3V nRST_SCF SCF_TXD SCF_RXD N.C nSCF_OPT N.C N.C GND GND GND GND GND
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18
6
5
4
3
2
1
ECO
Status_LED
3710 Series
(LCD_OPE)
ECO
Cancel
Power
Navi_KEY
LCD
Relay
5V
Eraser_LED
1
2
CN9
Eraser
Eraser
LED
SOL
5V N.C GND 5V
1 2 3 4
CN16
DC JACK
Option
Parallel
5V
Usb
LPEC1
DDR2
DIMM(Option)
128MB / 256MB
1
2
3
4
5
CN2
WLAN_IF
8
4
3
6
5
3.3V
USB_DM
USB_DP
GND
GND
3.3V
USB_DM
USB_DP
GND
GND
WLAN
(3710DW only)
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA