MX-C250, MX-C250E, MX-C250F, MX-C250FE, MX-C250FR, MX-C300F, MX-C300W, MX-C300WE, MX-C300A, MX-C300WR (serv.man8). Circuit Diagrams - Sharp Copying Equipment Service Manual (repair manual). Page 7

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MX-C300W  CIRCUIT DIAGRAM AND PARTS LAYOUT  2 –  1
[2] CIRCUIT DIAGRAM AND PARTS LAYOUT / 回路図 と 部品配置図
1.
MFPC PWB
A.
CIRCUIT DIAGRAM / 回路図
5
5
4
4
3
3
D
C
B
A
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
PIN+5VO
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
PIN+5VO
PIN+5VO
3R3V
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
D
1R8V
DGND
DGND
DGND
<1uH,Idc2=4.2A>
<3.3V>
<1.0V>
<1uH,Idc2=4.2A>
<1uH,Idc2=4.2A>
<1.8V>
R11
10KJ
R11
10KJ
R12
X_0J
R12
X_0J
CP14
CP14
C804
0.1u/10v:B
C804
0.1u/10v:B
R22
X_0J
R22
X_0J
C1
22u/6.3v:B(2012)
C1
22u/6.3v:B(2012)
C19
22u/10v:B(2012)
C19
22u/10v:B(2012)
C546
0.1u/10v:B
C546
0.1u/10v:B
CP8
CP8
R4
1J
R4
1J
R18
0J
R18
0J
R32
X_0J
R32
X_0J
R9
0J
R9
0J
CP1
3
CP1
3
C25
1000p/50v:B
C25
1000p/50v:B
CP20
CP20
R7
X_10KJ
R7
X_10KJ
C15
1000p/50v:B
C15
1000p/50v:B
CP19
CP19
R30
10KF
R30
10KF
CP29
CP29
C50
0.1u/50v:B(1608)
C50
0.1u/50v:B(1608)
CP31
CP31
IC10
PST8442UR
IC10
PST8442UR
GND
1
VDD
2
CD
3
OUT
4
CP5
CP5
CP22
CP22
C
0
C
0
R17
1J
R17
1J
AS5
QPWBX0287QSPZ
AS5
QPWBX0287QSPZ
L1
NR6045T1R0N
L1
NR6045T1R0N
R
1
R
1
C13
22u/6.3v:B(2012)
C13
22u/6.3v:B(2012)
CP9
CP9
CP17
CP17
CP11
CP11
R20
X_10KJ
R20
X_10KJ
C34
1000p/50v:B
C34
1000p/50v:B
R3
0J
R3
0J
R28
200F
R28
200F
C51
0.1u/50v:B(1608)
C51
0.1u/50v:B(1608)
C33
1000p/50v:B
C33
1000p/50v:B
C2
22u/6.3v
C2
22u/6.3v
R796
0J
R796
0J
㻿㻯㻝㻤㻡㻶
IC4
SC185J
㻿㻯㻝㻤㻡㻶
IC4
SC185J
PVIN
1
PVIN
2
AGND
3
AVIN
4
MODE
5
EN
6
PGOOD
7
NC
8
SS
9
VOUT
10
PGND
11
PGND
12
PGND
13
LX
14
LX
15
LX
16
THPD
17
C6
X_0.1u/10v:B
C6
X_0.1u/10v:B
CP1
2
CP1
2
CP15
CP15
C9
2200p/50v:B
C9
2200p/50v:B
IC3
PST8435UL
IC3
PST8435UL
GND
1
VDD
2
CD
3
OUT
4
CP2
CP2
C10
0.1u/10v:B
C10
0.1u/10v:B
CP28
CP28
C29
22u/10v:B(2012)
C29
22u/10v:B(2012)
C32
0.1u/10v:B
C32
0.1u/10v:B
C12
1000p/50v:B
C12
1000p/50v:B
CP30
CP30
R797
0J
R797
0J
C31
2200p/50v:B
C31
2200p/50v:B
C4
1000p/50v:B
C4
1000p/50v:B
㻿㻯㻝㻤㻡㻮
IC7
SC185B
㻿㻯㻝㻤㻡㻮
IC7
SC185B
PVIN
1
PVIN
2
AGND
3
AVIN
4
MODE
5
EN
6
PGOOD
7
NC
8
SS
9
VOUT
10
PGND
11
PGND
12
PGND
13
LX
14
LX
15
LX
16
THPD
17
CP1
CP1
R31
0J
R31
0J
C24
22u/6.3v
C24
22u/6.3v
SW1
D_SKQMBAE010
SW1
D_SKQMBAE010
R21
0J
R21
0J
CP23
CP23
C21
0.1u/10v:B
C21
0.1u/10v:B
C805
0.1u/10v:B
C805
0.1u/10v:B
CP901
CP901
R1
2.2J
R1
2.2J
L3
NR6045T1R0N
L3
NR6045T1R0N
CP900
CP900
CP24
CP24
R10
10KJ
R10
10KJ
CP6
CP6
㻿㻯㻝㻤㻟㻯
㻿㻯㻝㻤㻟㻯
R27
1J
R27
1J
C20
X_0.1u/10v:B
C20
X_0.1u/10v:B
㻿㻯㻝㻤㻡㻽
IC2
SC185Q
㻿㻯㻝㻤㻡㻽
IC2
SC185Q
PVIN
1
PVIN
2
AGND
3
AVIN
4
MODE
5
EN
6
PGOOD
7
NC
8
SS
9
VOUT
10
PGND
11
PGND
12
PGND
13
LX
14
LX
15
LX
16
THPD
17
C14
22u/6.3v
C14
22u/6.3v
C22
2200p/50v:B
C22
2200p/50v:B
R23
2.2J
R23
2.2J
C5
22u/10v:B(2012)
C5
22u/10v:B(2012)
CP21
CP21
C545
0.1u/10v:B
C545
0.1u/10v:B
C23
22u/6.3v:B(2012)
C23
22u/6.3v:B(2012)
CP16
CP16
C30
0.33u/10v:B
C30
0.33u/10v:B
CP27
CP27
C83
0.1u/50v:B(1608)
C83
0.1u/50v:B(1608)
L4
NR6045T1R0N
L4
NR6045T1R0N
R13
2.2J
R13
2.2J
CP25
CP25
System Power DC-DC & LDO
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