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MX-B381, MX-B401 (serv.man9). CIRCUIT DIAGRAM - Sharp Copying Equipment Service Manual (repair manual). Page 127

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MX-B381/B401  CIRCUIT DIAGRAM AND PARTS LAYOUT  2 – 116
nBD
nnTH
TH
nnGND
nFANRDY
nnnPOLY_LOCK
nnnBD
nPOLY_CK
nPOLY_START
nnnPOLY_START
nBRAKE
nnnBRAKE
nnnPOLY_CK
VREF_C1
nENB_C
VREF_C2
nLDERR_C
VREF_M2
nLDERR_M
VREF_M1
VREF_Y2
nLDERR_Y
VREF_Y1
VREF_K2
nLDERR_K
nSH_K2(M)
ENBDOWN1
nGPIO2_RSV
nSH_C1(C)
nENB_K
nSH_K1(K)
nSH_C2(Y)
VREF_K1
+5VN
+3.3VN
+24V1
+5V
PGND
+3.3V
+5VN
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
PGND
+24V1
+3.3V
DGND
+3.3V
TH_LSU
(6)
FANSTABLE
(10)
BEAMDETECT
(9,10)
POLY_LOCK(ASIC)
(10)
BEAMDETECT
(9,10)
POLY_BRAKE(ASIC)
(10)
POLY_START(ASIC)
(10)
POLY_CK(ASIC)
(10)
LD_CHK_3
(10)
nCNCHK
(10)
LD_CHK_2
(10)
LD_CHK_4
(10)
nFANRDY
(4)
or LM358
or 2SA1036
or DTC114YUA
or DTC114YUA
or DTC114YUA
v0.5 nm
IC24
TC74LCX14FT
IC24
TC74LCX14FT
I0
1
O0
2
I1
3
O1
4
I2
5
O2
6
GND
7
VCC
14
I5
13
O5
12
I4
11
O4
10
I3
9
O3
8
R610
X_470J(B)
R610
X_470J(B)
LED1
LT1F67AF
LED1
LT1F67AF
A
K
CN2
X_B03B-PASK-1(LF)(SN)
CN2
X_B03B-PASK-1(LF)(SN)
1
2
3
R187
X_47KJ
R187
X_47KJ
CP443
CP443
R183
X_47KJ
R183
X_47KJ
CP436
CP436
+
C70
47uF/50V(MVL:H10)
+
C70
47uF/50V(MVL:H10)
CP481
CP481
0J(B)
0J(B)
J(B)
J(B)
17
TX24-60R-6ST-H1E
17
TX24-60R-6ST-H1E
CNCHK
DCHK1
DT_C1+
DT_C1-
DT_C2+
DT_C2-
DT_K1+
DT_K1-
DT_K2+
DT_K2-
GND
GND
DT_Y1+
DT_Y1-
DT_Y2+
DT_Y2-
DT_M1+
DT_M1-
DT_M2+
DT_M2-
H
GND
GND
5V_LD
GND
GND
RAKE
CLK
OCK
START
LDCHK4
31
LDCHK3
32
LDCHK2
33
nLDERR_Y
34
nLDERR_C
35
VREF_C1
36
nENB_YMC
37
nLDERR_K
38
VREF_Y1
39
nSH_YMC1
40
nSH_YMC2
41
VREF_K1
42
nSH_K1
43
nENB_K
44
nSH_K2
45
VREF_C2
46
VREF_K2
47
VREF_Y2
48
VREF_M1
49
VREF_M2
50
nLDERR_M
51
BD
52
GND
53
GND
54
+5VLD
55
P-GND
56
P-GND
57
+24V
58
+24V
59
CNCHK
60
C677
0.1uF(B)
C677
0.1uF(B)
CP434
CP434
CP177
CP177
R185
X_47KJ
R185
X_47KJ
CP290
CP290
Q44
4.7K
47K
DTC143ZUBTL
Q44
4.7K
47K
DTC143ZUBTL
CP463
CP463
R602
10KF(B)
R602
10KF(B)
CP480
CP480
CP441
CP441
CP435
CP435
+
-
IC23A
KIA358F
+
-
IC23A
3
2
1
8
4
L4
X_BKP1608HS101-
T
L4
X_BKP1608HS101-
T
1
2
R607
X_470J(B)
R607
X_470J(B)
R609
X_470J(B)
R609
X_470J(B)
C680
150pF(B)
C680
150pF(B)
Q40
X_KRC407
Q40
X_KRC407
O
G
I
C71
0.1uF
C71
0.1uF
CP431
CP431
Q41
X_KRC407
O
G
I
C679
0.1uF(B)
C679
0.1uF(B)
R184
X_47KJ
R184
X_47KJ
R603
47KJ(B)
R603
47KJ(B)
R188
2KJ
R188
2KJ
CP461
CP461
Q37
X_KTA1505S
Q37
X_KTA1505S
B
E
C
CP432
CP432
R601
1KJ(B)
R601
1KJ(B)
CP437
CP437
R207
390J
R207
390J
CP449
CP449
R189
10KF
R189
10KF
+
-
IC23B
KIA358F
+
-
IC23B
KIA358F
5
6
7
8
4
Q39
X_KRC407
O
G
I
C
D
E
C
D
E
4
3
2
1
5/12
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