Samsung ML-2571N - Service Manual

Samsung Electronics
Service Manual
Circuit Description
12-2
3.3V 3.3V
3.3V
R32
15.4K
5
7
U1-2
LM393D
6
+
2
3
1
KDS226
THERM_IN
nFUSER
D2
DGND
C23
1nF
R4
470K
Not Used
C17
10nF
R16
1K
R3
7.5K
1%
R15
14.7K
1%
R33
33K
R36
10K
R37
5.1K
DGND
DGND
DGND
C3
10nF
C26
100nF
D1
KDS226
3.3V
3.3V
R35
5.1K
D9
MMSD914T1
FUSER_ON
1
35301-0250
2
3
2
1
3
2
1
Q2
MMBT2222ALT1
Q9
MMBT2222ALT1
CN1-1
Thermistor
2
3
1
DGND
DGND
3.3V
3.3V
DGND
5
U1-2
LM393D
6
1
8
1
+
GDI_Board
3.3V 3.3V
3.3V
R10
15.4K
5
7
U1-2
LM393D
6
+
2
3
1
KDS226
THERM_IN
nFUSER
D3
DGND
C11
1nF
R1
470K
Not Used
C4
10nF
R8
1K
R15
7.5K
1%
R3
14.7K
1%
R12
33K
R7
10K
R20
5.1K
DGND
DGND
DGND
C15
10nF
C12
100nF
D7
KDS226
3.3V
3.3V
R11
5.1K
D1
MMSD914T1
FUSER_ON
1
35301-0250
2
3
2
1
3
2
1
Q3
MMBT2222ALT1
Q5
MMBT2222ALT1
CN4-1
CN4-2
THERM
2
3
1
DGND
DGND
3.3V
3.3V
DGND
3
U1-1
LM393D
2
1
8
4
+
PCL_Board