MX-B381, MX-B401 (serv.man9). CIRCUIT DIAGRAM - Sharp Copying Equipment Service Manual (repair manual). Page 126

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MX-B381/B401  CIRCUIT DIAGRAM AND PARTS LAYOUT  2 – 115
nnnSH_K2(M)
nSH_C2(Y)
nnnSH_K1(K)
nSH_K1(K)
nnnSH_M2
nnnSH_M1
nnnSH_Y1
nnnSH_C1(C)
nnnENB_K
nnnENB_C
nENB_K
nnnSH_C2(Y)
nSH_K2(M)
nENB_C
nSH_C1(C)
VREF_M1
VREF_C2
VREF_C1
VREF_K2
VREF_K1
nFANSTABLE
ENB_K
ENB_C
nnnSH_Y2
VREF_M2
VREF_Y1
VREF_Y2
nBD
nFANSTABLE
nPOLY_LOCK
nPOLY_LOCK
CNCHK
nLDERR_Y
nLDERR_M
nLDERR_C
nLDERR_K
CNCHK
nPOLY_START
nPOLY_CK
nBRAKE
TH
DT_M2-
DT_M2+
DT_M1-
DT_M1+
DT_Y2-
DT_Y2+
DT_Y1-
DT_Y1+
DT_K2-
DT_K2+
DT_K1-
DT_K1+
DT_C2-
DT_C2+
DT_C1-
DT_C1+
ENBDOWN1
nPOLY_CK
nPOLY_START
nBRAKE
+3.3V
+5V
+5V_LD
+3.3V
+5V
+5V
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
+5V
DGND
+3.3V
DGND
+24V1
nLD_SH_C2(Y)
(10)
nLD_SH_K2(M)
(10)
nLD_SH_C1(C)
(10)
nLD_SH_K1(K)
(10)
LD_ENB_C
(10)
LD_ENB_K
(10)
nLD_SH_Y1
(9)
nLD_SH_M1
(9)
nLD_SH_M2
(9)
DA_DT
(10)
DA_CLK
(10)
DA_LD
(10)
FAN_PWM
(10)
LDD_ERR_K
(10)
nLD_SH_Y2
(9)
LDD_ERR_C
(10)
LDD_ERR_M
(10)
LDD_ERR_Y
(10)
LD_CHK_1
(10)
DT_M2-
(9)
DT_M2+
(9)
DT_M1-
(9)
DT_M1+
(9)
DT_Y1-
(9)
DT_Y1+
(9)
DT_Y2-
(9)
DT_Y2+
(9)
DT_K2(M)-
(10)
DT_K2(M)+
(10)
DT_K1(K)-
(10)
DT_K1(K)+
(10)
DT_C2(Y)-
(10)
DT_C2(Y)+
(10)
DT_C1(C)-
(10)
DT_C1(C)+
(10)
(4
nFAN_PWM
(4)
POLY_BRAKE(ASIC)
(10)
POLY_CK(ASIC)
(10)
POLY_START(ASIC)
(10)
GPIO1_RSV
(9)
GPIO0_RSV
(9)
LD5V
(6,9,10)
GPIO2_RSV
(9)
or
M62352GP
<LD CN >
<FAN MOTOR
CN>
or DTC143ZKA
or TC74VHCT244AFT
C85
0.1uF
C85
0.1uF
CP471
CP471
C82
X_220pF
C82
X_220pF
CP457
CP457
R619
47KJ(B)
R619
47KJ(B)
CP468
CP468
C704
X_0.1uF(B)
C704
X_0.1uF(B)
CP454
CP454
R1
R1
CP491
CP491
R1
R1
R631
100J(B)
R631
100J(B)
C706
X_0.1uF(B)
C706
X_0.1uF(B)
C711
X_0.1uF(B)
C711
X_0.1uF(B)
R604
100J(B
R604
100J(B
R605
2KJ(B)
R605
2KJ(B)
CN17
CN17
CNCH
1
LDCH
2
DT_C
3
DT_C
4
DT_C
5
DT_C
6
DT_K
7
DT_K
8
DT_K
9
DT_K
10
GND
11
GND
12
DT_Y
13
DT_Y
14
DT_Y
15
DT_Y
16
DT_M
17
DT_M
18
DT_M
19
DT_M
20
TH
21
GND
22
GND
23
+5V_
24
GND
25
GND
26
BRAK
27
CLK
28
LOCK
29
nSTA
30
CP459
CP459
R203
47KJ
R203
47KJ
CP442
CP442
CP476
CP476
C702
X_0.1uF(B)
C702
X_0.1uF(B)
R192
1KJ
R192
1KJ
R615
47KJ(B)
R615
47KJ(B)
R620
47KJ(B)
R620
47KJ(B)
R191
100J
R191
100J
R622
100J(B)
R622
100J(B)
CP483
CP483
Q38
X_KRC106S
Q38
E
B
C
R635
100J(B)
R635
100J(B)
R632
100J(B)
R632
100J(B)
C83
X_220pF
C83
X_220pF
CP490
CP490
CP478
CP478
R621
100J(B)
R621
100J(B)
R606
4.7KJ(B)
R606
4.7KJ(B)
CP453
CP453
R205
47KJ
R205
47KJ
C77
0.1uF
C77
0.1uF
CP470
CP470
C86
0.1uF
C86
0.1uF
R637
100J(B)
R637
100J(B)
R201
47KJ
R201
47KJ
CP460
CP460
R626
100J(B)
R626
100J(B)
CP475
CP475
CP469
CP469
CP474
CP474
IC27
KID65503F
IC27
KID65503F
1B
1
2B
2
3B
3
4B
4
5B
5
6B
6
7B
7
G
8
NC
9
1C
16
2C
15
3C
14
4C
13
5C
12
6C
11
7C
10
C701
X_0.1uF(B)
C701
X_0.1uF(B)
R617
47KJ(B)
R617
47KJ(B)
R628
1KJ(B)
R628
1KJ(B)
CP438
CP438
R193
1KJ
R193
1KJ
C703
X_0.1uF(B)
C703
X_0.1uF(B)
R618
47KJ(B)
R618
47KJ(B)
C705
X_0.1uF(B)
C705
X_0.1uF(B)
R625
47KJ(B)
R625
47KJ(B)
CP472
CP472
CP448
CP448
R186
X_20KJ
R186
X_20KJ
R611
100J(B)
R611
100J(B)
R1
R1
C81
X_220pF
C81
X_220pF
CP433
CP433
C710
X_0.1uF(B)
C710
X_0.1uF(B)
R627
1KJ(B)
R627
1KJ(B)
R204
47KJ
R204
47KJ
C84
0.1uF
C84
0.1uF
IC25
SN74AHCT244PWR
IC25
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
VCC
20
GND
10
CP458
CP458
R636
100J(B)
R636
100J(B)
IC29
BU2500FV
IC29
Vss
1
AO3
2
AO4
3
AO5
4
AO6
5
AO7
6
AO8
7
AO9
8
AO10
9
Vdd
10
Vcc
11
AO11
12
AO12
13
Do
14
LD
15
CLK
16
DI
17
AO1
18
AO2
19
GND
20
R206
47KJ
R206
47KJ
CP467
CP467
CP447
CP447
R608
10KF(B)
R608
10KF(B)
CP477
CP477
CP462
CP462
R624
47KJ(B)
R624
47KJ(B)
R630
1KJ(B)
R630
1KJ(B)
R202
47KJ
R202
47KJ
IC30
TC74LCX14FT
IC30
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
R616
47KJ(B)
R616
47KJ(B)
CP479
CP479
A
B
C
A
B
C
4
3
2
1
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