AR-C170 (serv.man6). 03 - PCU PWB - Sharp Copying Equipment Service Manual (repair manual). Page 10

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AR-C170M  PCU PWB  3 - 10
5
4
3
D
C
B
A
PCU PWB (A/D,D/A Convert Section)
5
4
3
TH_PWB
THHI_REF
THHI_REF
THHI_REF
THHI_REF
THHI_REF
+5V
+5V
+
+3.3V
+3.3V
+3.3V
+5V
+3.3V
+3.3V
+5V
+3.3V
+5V
+3.3V
+3.3V
<2>
GAIN0
<4>
GAIN3
<4>
GAIN2
<4>
GAIN1
<4>
<1>
<2>
PCSK
<1>
PCSC
<1>
REGSEN
<1>
<1>
<1
THSU
<1>
THSD
<1>
<1
<1
THSD(CPU)
<2>
THSU(CPU)
<2>
HL_HITrouble\
<6>
HL2
<1>
HL1
<1>
HL2_ON
<4>
HL1_ON
<4>
THSU(CPU)
<2>
THSD(CPU)
<2>
Pro-Con
Sensor
PHOTO
G-level
Current Max 60mA
0.045W par 1ch
AMETHYSTSENSOR
BEAR SENSOR(CL)
BEAR SENSOR(BK)
ProCon(BLACK)
ProCon(COLOR)
Current Max 60mA
0.045W par 1ch
Registration
YES
NO
NO
SENSOR
Controll
GAIN Cir.
<<STUDY!!>>
Input
Impedance Down: 10KOhm.
Too Small & Large?
To High-Te
& CPU A/D
Must be Pull-Up
Trouble
Low:
High Temp
Dead Lock
Powering
Up, HEATER OFF
245deg setting
-> 13K/2K or 6.2K/1K
225deg setting
-> 8.2K/1.8K
Photo Coupler->Triack
ASEN_LED
BSEN_LED
ASEN_POW
BSEN_POW
C
E
B
47K
10K
Q40
DTA114YUA
47K
10K
Q40
DTA114YUA
A1
R75
1KJ
R75
1KJ
5
6
7
4
11
+
-
IC19B
LM324D
+
-
IC19B
LM324D
K1
R236
47KJ
R236
47KJ
1
8
2
7
3
6
4
5
BR19
33JX4
R235
1KJ
R235
1KJ
R103
1MJ
R103
1MJ
B
E
C
Q39
2SC2412KQ
2
Q39
2SC2412KQ
2
R135
2.4KF
R135
2.4KF
C
E
B
47K
10K
Q36
DTA114YUA
47K
10K
Q62
2SK3018
Q62
2SK3018
10
9
8
4
11
+
-
IC19D
LM324D
+
-
IC19D
LM324D
R74
6.2KJ
R74
6.2KJ
R232
1KJ
R110
100J
R110
100J
B
E
C
Q35
2SC2412KQ
2
Q35
2SC2412KQ
2
R102
1MJ
R102
1MJ
1
8
2
7
3
6
4
5
BR15
33JX4
R234
4.7KJ
R234
4.7KJ
t
TH1
nm_103AT-2/SEMITEC
t
TH1
nm_103AT-2/SEMITEC
R233
47KJ
R79
56F(3216)
R79
56F(3216)
R231
4.7KJ
C
E
B
10K
47K
10K
Q38
DTC114YUA
47K
5
4
2
3
12
+
-
IC17B
LM339D
+
-
IC17B
LM339D
7
6
1
3
12
+
-
IC17A
LM339D
+
-
IC17A
LM339D
R104
33J
R104
33J
A
K
SK
D16
MA3X704A
SK
D16
MA3X704A
9
8
14
3
12
+
-
IC17C
LM339D
+
-
IC17C
LM339D
R73
4.7KJ
R73
4.7KJ
R81
1MJ
R81
1MJ
R94
56F(3216)
R94
56F(3216)
C
E
B
10K
47K
10K
47K
R131
100KF
R131
100KF
C33
0.1uF
C33
0.1uF
R199
10KF
R199
10KF
11
10
13
3
12
+
-
IC17D
LM339D
+
-
Q61
2SK3018
R82
33J
R82
33J
Q37
DTC114YUA
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