Samsung CLP-300 Series Service Manual page 142

Main Board(13/15)
1 2
A
+3.3V
+5V
DEVE_HOME
CN5-1 R5 R14
35303-0350
150
47K
1
2
B 3
DGND
C
+3.3V
+5V
CN20-1
DF11-6DP-2DSA R163 R164
150
47K
1
3
D
R149
5
100
DGND
+3.3V
+5V
R148 R165
150 47K
E
2
4
R150
6
100
DGND
F
1 2
1
B B B B
Samsung Electronics
3 4
2 1
D6
DGND
KDS226 3
nDEV_HOME
R13
100
C20
10nF
FUSER THER.
CN8-1
5045-02A
2 1
D32
DGND
KDS226 3
nP_EMPTY
C263
10nF
2 1
D33
DGND
KDS226 3
nREGI_SENS
C264
10nF
3 4
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5 6
+3.3V
R24
20K
1%
U5-1 8
3
2
4
LM393D
+3.3V
DGND
R18 R20
5.6K
15.4K,1%
DGND
2 1
D4
L2
3
KDS226 INSTPAR
1
L3
INSTPAR 3
2 1
C81
C21
100nF
2 10nF
3301-001122 Q1
C34
MMBT2222ALT1
1nF
DGND
SCF
+24V +3.3V +3.3V
CN18-1
DF11-8DP-2DSA
1 D30 D26
KDS226 KDS226
2
1 2 1
3
3 3
4
5
6
7
8
C280 C279
100nF
100nF,50V
DGND
5 6
7 8
FUSER_ON
R47
4.7K
D10
MMSD914T1
1
R41
3
1K
Q4 1
nFUSER_EN
MMBT2222ALT1
2
R44
+3.3V
4.7K
DGND
R31
3K,1%
R19 33K
FUSER_THERM1
FUSER_THERM2
R33 0
R32
U5-2
30K,1% 5
7
6
LM393D
DGND
D25
KDS226
2 1 2
R126 R132
10K 10K
3
R153 100
SCF_RXD
R127 100
SCF_TXD
R155 1K
nSCF_RDY
C268 C246 C270
1nF 1nF 1nF
Engineer K.C.LEE Digtal Printing Division
R&D 5
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TITLE:
R&D CHK S.D.AN
DOC CTRL CHK
CLP-300(N)/CLX-3160N(FN)
MFG ENGR CHK
Main_V0.11
DEVE_HOME,SCF,FUSER THER
7 8
Schematic Diagram
A
B
C
D
E
Size
F
A3
13/15
Service Manual
11-13