Samsung ML-1440 Service Manual page 8

2
2. Connection Diagram
Ther mistor
T herm1
T herm2
Exit
Sensor
Micro- Switch
( For L SU 5 V S Cut )
LSU
Panel B' d
HOST
(PC)
Samsung Electronics
Mic r o Sw it ch on Board
In- 24V
Out- 24V S
HVPS
PT L Ct rl
PTL
CN3
5V
CN1
1- 24V S
2- GN D _2 4
3- 5V
4- GND _5 V
5- T H V _PWM
DCU
6- T HV RD
(For Sys t em Tes t )
7- / T H V _EN
8- / MHV _PWM
1- 5V
9- / DEV _PWM
2- RXD
10- PT L
3- TX D
Joint t y pe 11- N .C.
4- GND- 5V
12- N .C.
1- Ther m1
2- Ther m2
CN1 2 CN1 0 CN2
1 - 5V
2 - Ex it _s ignal CN1 3
3 - GND_5
1 - 5V
CN1 1
2 - 5V S
Controller
1- / HSYNC
2- 5V S
3- GND_5
4- / LD_ON
5- / VDO
6- LSUPOWE
CN6
R1 200
7- 24V S
8- GND_2 4
9- P_MOT OR
10- / LREA DY
11- EXT _CL K
1- 5V
2- GND_5
3- LED1
4- LED2
CN5
5- LED3
6- LED4
7- Key 1
8- Key 2
CN8
Par allel Port
36Pin
36 Pin
P1284 Con.
CN7
USB Por t
4Pin
4 Pin
USB Jack
Si ze /E mp ty /Fe ed /Ma nual Senso r s ar e on B © d
1- GND_5
2- GND_5
3- 5V
4- 5V
5- GND_2 4
CN1 4
CN2
6- GND_2 4
7- 24V S
8- 24V S
9- 24V
10- 24V
SMPS
1- Sav e
2- P_Nar r ow
3- Empt y
4- Feed
5- FA N
6- Clut ch
7- Fus er
8- MP_Clut c h
9- MP_Empt y
10- Mot or _PA
11- Mot or _PB
CN8
12- / Mot or _PA
13- / Mot or _PB
14- SCF_Cass ete
15- SCF_Mot or
CN3
16- SCF_Clut ch
17- SCF_Empt y
18- N.C.
19- T herm2
20- T herm1
21- 5V
22- EXT _Clo ck
23,2 4- 5V
25- 5V PS
26,2 7,28- GND_5 V
1- N .C,. 2 - N .C ., 3- 5V , 4- /I OC S3 , 5- D31 , 6- D30 ,
7- D2 9, 8- GN D 5, 9- D 28, 10- D 27, 11- D26 ,
12- GND5 ,13- D 25, 14- D24 , 15- / EIRQ1, 16 - GND 5,
17- A 5, 18- A 4, 19- A 3, 20- / EIRQ0,21- A 2,22- D2 3,
23- D 22, 24 - A 17, 2 5- D 21, 26- A 16, 27- D20 ,
28- A 15, 29 - D 19, 3 0- A 14, 31- D 18, 32- A13 ,
CN4
33- D 17, 34 - A 12, 3 5- D 16, 36- A 11, 37- A6,
38- A 10, 39 - / RESET , 4 0- A 9, 4 1- / WA IT , 42 - A 8,
43- / IOCS3, 44 - A 7, 45 - / IOCS3, 4 6- N .C ., 47- N .C.,
48- GN D5 , 49- A1 8, 50- / RD, 51- /WE, 5 2- GN D 5,
53- N .C., 54- N .C., 55 - / EIRQ1, 56- GN D 5, 5 7- N .C .,
58- 5V , 59 - 5V , 60 - 5V (60 pi n Connec t or)
CONNECTION DIAGRAM
Remark
: Normal Connec t or
: Board on t y pe Connec t or
Solenoid
1- / MP_EMPT Y
MP Tray
CN1
2- GND_5
3- 5V
(Option)
1- 24V S
CN2
2- MP_CL UT CH
1- 5V
2- SC F_Sel C as set t e
3- SCF_Mot or
SCF
CN5
4- SCF_CL UT CH
5- SC F_Empt y
6- 24V S
(Option)
7,8- GND_5
1- Mot o_PA
Motor
2- Mot or _PB
CN3
3- / Mot or_PB
4- Mot or _PA
HOT
CN5 02 Heat Lamp (Fuser)
Neut ral
AC In- Let
HOT
110V for USA
Power Switch
CN5 01
Neut ral
220V f or EU
1- FA N Cont rol
DC FAN
2- N.C.
CN5 03
3- 24V
Network I/F Card
(Option)
Repair Manual
2-1