Samsung SCX-4500 Series, Service Manual

Page: 132 / 141

Service Manual
System Diagram
6-2
6.2 Connection Diagram
1.
5V
2.
DGND
3.
nLED_
EN_1
4.
LE
D_EN_2
5.
LED_CLK2
6.
LED_CLK1
7.
nLED_DATA2
8.
nLED_DATA1
9.
DGND
10
.
POWE
R_LE
D_ON
11.
TOUCH_RX
12.
BUZZER_PWM
13.
NC
14
.
SCANMO
T
_A
15.
SCA
NMOT_NA
16.
SCA
NMOT_B
17
.
SCANMO
T
_NB
1.
24VS
2.
DGND
3.
nP
M
O
T
O
R
4.
nLREA
D
Y
5.
LSU_CLK
6.
nL
D_
EN
7.
1.2V
8.
DGND
9.
n
H
SYNC
10.
LSU_
SH
11.
DGND
12
.
VDO
1
-
13.
VDO1+
14.
DGND
15
.
LS
U_5V
1.
5VS
2.
N.
C.
3.
5V
4.
24
5.
N.
C
6.
24VS
1.
DGND
2.
BLDC_M
OTOR_CLK
3.
nBLDC_M
OTOR_READY
4.
nBLDC_M
OTOR_EN
5.
5V
6,7,8.
DGND
9,10.
24
V
S
1.
3.3V
2.
HYPE
R_TX
3.
HYPER_RX
4.
DGND
1.
CIS_
SIG
2.
CIS_
3.3V
3.
DGND
4.
CIS_3.
3V
5.
Vre
f
6
.CI
S_SI
7.
CI
S_CLK
8.
12
V
9.
LED_B
10.
LE
D_
G
11.
LED_
R
12.
DGND
13
.
N.C.
14.
N.C.
15.
DGND
16
.
5V
17.
LED_I
NDI
CATOR
18
.
DGND
1.
24VS
2.
5V
3.
DGND
4.
nP_E
XIT
5.
THV_RE
A
D
6.
nTHV_E
N
7.
nTHV_
P
WM
8.
nM
HV
_PWM
9.
n
B
IA
S_
PW
M
1.
3.3V
2.
CRUM
_DATA_IO
3.
CRUM
_CLK
4.
DGND
1.
FA
N
2.
DGND
1.
24VS
2.
5V
3.
nP
_FEE
D
4,5.
24
V
6,7
,8,9
.
DGND
11.
FUSER_ON_2
12.
FUSER_ON_1
Connection
Diagram
(SCX-4500)
LED
(13X
5
D
OT)
PT696
1
OP
E_
PBA
14P
LSU
2P
IN
L
E
T/
POWE
R
S
W
AC
PWR
SM
PS
5V
/
2
4
V
2P
FUSER_FAN
2P
HVPS
THV MHV
DE
V
OPC
_
G
N
D
SUP
P
L
Y
9P
10
P
MAI
N
_M
HYPE
R
4P
COVER_
S
W
6P
4P
3P
THERMISTOR
CRUM
5P
DEVE
.
12P
17P
C
Y
8C
21
434
TOUCH
SE
NSO
R
P_
E
X
IT
CIS
1.
F
U
SE
R_
THERM
1
2.
NC
3.
DGND
FLAT
_
M
18P
1.
5V
2.
PI
CK_UP_CLUTCH
3.
3.3V
4.
DGND
5.
nP_E
M
P
TY
5P
PAP
ER_
E
MPTY
PI
CKUP_CLUT
CH
4P
P
A
PE
R_FEED