Sharp AR-FN3 (serv.man2) Service Manual ▷ View online
8. Solenoid and clutch drive circuit
The solenoid and clutch drive circuit uses non-inversion transistor
arrays TD62318AP (IC09, 12) which turn on the solenoids and
clutches when the input signal is at L; and an inversion transistor
array M63823P (IC14) which turns on the solenoids and clutches
when the input signal is at H.
arrays TD62318AP (IC09, 12) which turn on the solenoids and
clutches when the input signal is at L; and an inversion transistor
array M63823P (IC14) which turns on the solenoids and clutches
when the input signal is at H.
The expansion I/O PG port which controls the solenoids and clutches
is an open collector type which becomes high impedance when reset-
ting and H output. For this reason, to turn on the solenoids and
clutches at L level, the non-inversion type TD62318AP is used for
driving the PG port. On the other hand, the expansion I/O’s PC port is
at L level at resetting. For this reason, for driving the PC port, the
inversion type M63823P which turns on the solenoids and clutches at
H level is used.
is an open collector type which becomes high impedance when reset-
ting and H output. For this reason, to turn on the solenoids and
clutches at L level, the non-inversion type TD62318AP is used for
driving the PG port. On the other hand, the expansion I/O’s PC port is
at L level at resetting. For this reason, for driving the PC port, the
inversion type M63823P which turns on the solenoids and clutches at
H level is used.
9. Jogger motor drive circuit
The jogger motor control signal (JMA, A/, B. B/) from the expansion
I/O (IC11) is input into the driver IC SLA7024MT, to drive the jogger
stepping motor which aligns the sheets sideways.
I/O (IC11) is input into the driver IC SLA7024MT, to drive the jogger
stepping motor which aligns the sheets sideways.
The driving method is unipolar, 1-2 phase excitement, constant-volt-
age method.
age method.
Here is the driving pattern for the jogger motor.
PF0
PF1
PF2
PF3
PF1
PF2
PF3
59
60
61 OG1SL/
62 OG3SL/
60
61 OG1SL/
62 OG3SL/
PC4
PC5
PC6
PC7
PC5
PC6
PC7
49
48 T12CL
47 OG2SL
46 STPDSL
48 T12CL
47 OG2SL
46 STPDSL
PF4
PF5
PF6
PF7
PF5
PF6
PF7
63
64 T3PDSL/
64 T3PDSL/
1 PDCL/
2 STORCL/
2 STORCL/
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
13
4
5
5
12
13
4
5
5
12
14
11
6
3
14
11
6
3
16
15
14
13
12
15
14
13
12
11
10
9
I1
I2
I3
I4
I5
I6
I7
I2
I3
I4
I5
I6
I7
GND
COM
O1
O2
O3
O4
O5
O6
O7
O2
O3
O4
O5
O6
O7
IC14
IC09
IC12
TD62318AP
8
16
9
1
1
15
10
7
2
I4
I3
I2
I1
O4
O3
O2
O1
VCC2
VCC1
COM2
COM1
GND
GND
GND
GND
8
16
9
1
1
15
10
7
2
I4
I3
I2
I1
O4
O3
O2
O1
VCC2
VCC1
COM2
COM1
GND
GND
GND
GND
TD62318AP
+24V
RD16FB
RD16FB
ZD01
ZD02
+5V
+24V
+5V
+24V
T12CL/
OG2SL/
STPDSL/
OG1SL/
OG3SL/
T3PDSL/
PDCL/
STORCL/
+24V
+24V
+24V
I/O
(IC11)
T3PDSL
PDCL
STORCL
OG3SL
OG1SL
STPDSL
OG2SL
T12CL
PPSL/
PPSL
IC03(CPU)P46 PPSL
M63823P
IC03(CPU)P47 STSL
STSL/
PPSL
I/O
PC0
PC3
(IC11)
50
53
52
51
PC2
PC1
JGMA
JGMA/
JGMB
JGMB/
JGMA/
JGMB
JGMB/
JGMA
JGMA/
JGMB
JGMA/
JGMB
JGMB/
JGM
+24V
+24V
Here is the driving pattern for the jogger motor.
3
14
10
6
REFA
5
16
17
REFB
RSB
IN A
IN/A
IN B
IN/B
RSB
IN A
IN/A
IN B
IN/B
IC06
SLA7024MT
OUT A
OUT/A
OUT B
OUT/B
OUT/A
OUT B
OUT/B
GA
GB
GB
VSA
7
1
8
8
11
18
18
4
15
+24V
12
VSB
2
9
13
TDA
TDB
RSA
TDB
RSA
R137
47K
C134
470P
C130
470P
+5V
C04
R132
47K
C132
2200P
R08
1(1W)
R134
2.4K
R09
1(1W)
R136
2.4K
C133
2200P
R135
0.1U
C131
100
R133
910
+5V
CPU
(IC03)
R139
200
IC102
59
P61
6
11
TD62504F
47u/35
V
Alignment direction
Stop
Opening direction
JMA
JMB
JMA/
JMB/
JMB/
AR-FN3
9 – 8
8/19/1999
10. Pusher, reversion, staple unit moving
motor drive circuit
The pusher motor control signal (PMA, A/, B, B/), reversion motor
control signal (RMA, A/, B, B/) and staple unit movement motor con-
trol signal (STUMA, A/, B, B/) from the CPU (IC3) are inputted to the
stepping motor driver IC SLA7024M (IC4, 8, 10), to drive the following
motors: the pusher motor which elevates the paper inside the staple
tray to the stapling position and paper discharge position; the rever-
sion motor which reverses the paper; and the staple unit moving
motor which moves the staple unit to the stapling position.
control signal (RMA, A/, B, B/) and staple unit movement motor con-
trol signal (STUMA, A/, B, B/) from the CPU (IC3) are inputted to the
stepping motor driver IC SLA7024M (IC4, 8, 10), to drive the following
motors: the pusher motor which elevates the paper inside the staple
tray to the stapling position and paper discharge position; the rever-
sion motor which reverses the paper; and the staple unit moving
motor which moves the staple unit to the stapling position.
The driving method is a unipolar, 2-phase (pusher and tray 3 paper
discharge motor), 1-2 phase (staple unit motor), constant-current
chopper driving method.
discharge motor), 1-2 phase (staple unit motor), constant-current
chopper driving method.
•
Push motor drive pattern
•
Tray 3 paper discharge motor drive pattern
•
Staple unit moving motor drive pattern
PMA
PMB
PMA/
PMB/
Up
Stop
Energized
Down
Tray 3 paper discharge
direction
direction
Stop
T3OMA
T3OMB
T3OMA/
T3OMB/
STUMA
STUMB
STUMA/
STUMB/
Front direction
Stop
Rear direction
Pusher motor drive circuit
Staple unit moving motor drive circuit
Tray 3 paper discharge motor drive circuit
CPU
PB0
PB3
(IC03)
2
5
4
3
PB2
PB1
T30MA
T30MA/
T3M0B
T3M0B/
T30MA/
T3M0B
T3M0B/
3
14
10
6
REFA
5
16
17
REFB
RSB
IN A
IN/A
IN B
IN/B
RSB
IN A
IN/A
IN B
IN/B
IC08
SLA7024MT
OUT A
OUT/A
OUT B
OUT/B
OUT/A
OUT B
OUT/B
GA
GB
GB
VSA
7
1
8
11
18
18
4
15
T30MA
T30MA/
T30MB
T30MB/
T30MA/
T30MB
T30MB/
+24V
12
VSB
2
9
13
TDA
TDB
RSA
TDB
RSA
R146
47K
C139
470P
C135
470P
+5V
C07 47U/35V
T30M
+24V
+24V
R141
47K
C137
2200P
R10
1(1W)
R142
2.4K
R11
1(1W)
R144
2.4K
C138
2200P
R143
0.1U
C136
60
R145
910
+5V
PB4
PB7
58
9
8
7
PB6
PB5
PMA
PMA/
PMA/
PMB
PMB/
PMB/
3
14
10
10
6
REFA
5
16
17
REFB
RSB
IN A
IN/A
IN B
IN/B
RSB
IN A
IN/A
IN B
IN/B
IC04
SLA7024MT
OUT A
OUT/A
OUT B
OUT/B
OUT/A
OUT B
OUT/B
GA
GB
GB
VSA
7
1
8
11
18
18
4
15
PSMA
PSMA/
PSMB
PSMA/
PSMB
PSMB/
+24V
12
VSB
2
9
13
TDA
TDB
RSA
TDB
RSA
R121
47K
C126
470P
C122
470P
+5V
C05 47U/35V
PSM
+24V
+24V
R116
47K
C124
2200P
R5
1(2W)
R118
2.4K
R6
1(2W)
R120
2.4K
C125
2200P
R119
0.1U
C123
200
R117
910
+5V
IC102
TD62504F
12
5
P40
P43
18
21
20
19
P42
P41
STUMA
STUMA/
STUMB
STUMB/
STUMA/
STUMB
STUMB/
3
14
10
10
6
REFA
5
16
17
REFB
RSB
IN A
IN/A
IN B
IN/B
RSB
IN A
IN/A
IN B
IN/B
IC10
SLA7024MT
OUT A
OUT/A
OUT B
OUT/B
OUT/A
OUT B
OUT/B
GA
GB
GB
VSA
7
1
8
11
18
18
4
15
STUMA
STUMA/
STUMB
STUMB/
STUMA/
STUMB
STUMB/
+24V
12
VSB
2
9
13
TDA
TDB
RSA
TDB
RSA
R159
47K
C158
470P
C154
470P
+5V
C06 47U/35V
STUM
+24V
+24V
R154
47K
C156
2200P
R19
1(1W)
R155
2.4K
R20
1(1W)
R157
2.4K
C157
2200P
R156
0.1U
C155
160
R158
910
+5V
6
P60
PMPD
R131
200
IC102
TD62504F
10
7
60
P62
R140
270
T3MPD
AR-FN3
8/19/1999
9 – 9
11. Elevator motor drive circuit
The elevator motor control signal (EMA, B) from the expansion I/O is
inputted through the driver TD62503F (IC103) to the H driver
STA457C (IC5), to drive the elevator motor which adjusts the tray
height according to the paper volume stored in the off-set tray (tray
3). EMA,B signal logic controls the rotational direction of the motor
(CW/CCW) to move up and down the tray.
inputted through the driver TD62503F (IC103) to the H driver
STA457C (IC5), to drive the elevator motor which adjusts the tray
height according to the paper volume stored in the off-set tray (tray
3). EMA,B signal logic controls the rotational direction of the motor
(CW/CCW) to move up and down the tray.
The motor is braked to improve the stopping accuracy of the tray.
TD62503 (IC103) is a driver for driving STA457C, consists of
peripheral resistors, capacitors, and diodes, which forms a delay cir-
cuit to prevent short electric current from flowing inside the H driver
when EMA and B are changed over.
peripheral resistors, capacitors, and diodes, which forms a delay cir-
cuit to prevent short electric current from flowing inside the H driver
when EMA and B are changed over.
To protect the circuit from shorting and motor locking, a protective
fuse (F3) is installed.
fuse (F3) is installed.
EMB
EMA
Rotational
direction
Working direction
0
0
Brake
Brake
0
1
CW
Elevation
1
0
CCW
Descent
1
1
Stop
Stop
12. Off-set motor drive circuit
The off-set motor control signal (OFMA,B) from the CPU is input to
the H driver TA7291S (IC2), to drive the off-set motor which moves
the tray sideways against the paper discharge direction, in order to
sort the sheets discharged to the off-set tray (tray 3) by the number of
sheets specified.
the H driver TA7291S (IC2), to drive the off-set motor which moves
the tray sideways against the paper discharge direction, in order to
sort the sheets discharged to the off-set tray (tray 3) by the number of
sheets specified.
The rotational direction of the motor is crank controlled in one direc-
tion (CW) and braked to a stop at the off-set home position.
tion (CW) and braked to a stop at the off-set home position.
To protect the circuit from shorting and motor locking, a protective
fuse (F1) is installed.
fuse (F1) is installed.
OFMB
OFMA
Rotational
direction
Working direction
0
0
Stop
Stop
0
1
CCW
Not used
1
0
CW
Off-set operation
1
1
Brake
Brake
9
4
8
F03
1.15A/125V
T1.0A/250V
T1.0A/250V
+24V3
1
6
8
4
9
STA457C
IC5
6
1
3
3
2
7
7
5
5
10
10
EVM+
EVM-
EVM
D02 D01
1SR124-400
2
I/O
(IC11)
PE0
PE1
4 EMA
5 EMB
TD62503F
TD62503F
TD62503F
TD62503F
+5V
R150
R149
R147
R148
D06
D05
RN105
10K
10K
200
200
1K
1K
1SS133
1SS133
C149
10000P
C150
10000P
1
16
2
15
3
14
4
13
IC103
IC103
IC103
IC103
+5V
R161
R160
1K
C159
68000P
C160
68000P
R14
R13
2.4K(1/4W)
2.4K(1/4W)
1K
2
RN105
Vcc
IN1
IN2
GND
VS
VREF
OUT1
OUT2
TA7291S
IC02
2
9
1
5
3
7
8
6
CPU
(IC03)
P44
P45
23 OFMA
24 OFMB
R128
R127
47K
47K
+5V
F01
0.315A/125V
T0.2A/250V
C03
10U/35V
OFM+
OFM-
OFM
+24V3
AR-FN3
9 – 10
8/19/1999
13. 10V power generating circuit
The 10V power generating circuit generates
+
10V which is supplied to
the power supply of the transport motor IC uPD1246C (IC13) and
comparator BA10393F (IC104). The circuit consists of a Zener diode
RD11EB (ZD7), transistor 2SC1472 (Q5), other peripheral resistan-
ces and capacitors.
comparator BA10393F (IC104). The circuit consists of a Zener diode
RD11EB (ZD7), transistor 2SC1472 (Q5), other peripheral resistan-
ces and capacitors.
+
24V is reduced to about
+
11V by the Zener
diode ZD7 and passed through the emitter follower circuit of the
transistor Q5 to become about
transistor Q5 to become about
+
10V for outputting.
14. Transport motor drive circuit
The transport motor drive circuit consists of a motor IC yP1246C
(IC10), transistor array TD62503F (IC16), motor driver IC SLA6023
(IC20) and peripheral circuits.
(IC10), transistor array TD62503F (IC16), motor driver IC SLA6023
(IC20) and peripheral circuits.
When the transport motor control signal (FMPWM) from the CPU
becomes L level, the transistor inside the IC20 turns on to let the
motor current flow to start the motor. When the motor is started, the
transport motor hole signal (HU, HV, HW) input to the IC10 is
changed over to switch over the drive of the transistor inside the IC20
so that the motor begins to rotate under non-controlled state.
becomes L level, the transistor inside the IC20 turns on to let the
motor current flow to start the motor. When the motor is started, the
transport motor hole signal (HU, HV, HW) input to the IC10 is
changed over to switch over the drive of the transistor inside the IC20
so that the motor begins to rotate under non-controlled state.
As the transport motor rotates, the speed signal (FMRE) is output
from the motor. The CPU incorporates the signal. It reduces the ON
duty of the FMPWM signal to increase the speed when the motor
speed is slow; it increases the ON duty of the FMPWM signal to
reduce the speed when the motor speed is high. The motor speed is
thus maintained at a constant speed.
As the current flowing into the motor becomes large, the current
flowing to the R25 also becomes large, thus raising the voltage at the
negative side of the comparator BA10393F (IC15). When this voltage
becomes greater than the reference voltage (about 1.1V) preset at
the plus side, the output of IC15 becomes at L level, thus turning off
the IC20 transistor to restrict the current flowing to the motor (current
limit setting: about 5A).
from the motor. The CPU incorporates the signal. It reduces the ON
duty of the FMPWM signal to increase the speed when the motor
speed is slow; it increases the ON duty of the FMPWM signal to
reduce the speed when the motor speed is high. The motor speed is
thus maintained at a constant speed.
As the current flowing into the motor becomes large, the current
flowing to the R25 also becomes large, thus raising the voltage at the
negative side of the comparator BA10393F (IC15). When this voltage
becomes greater than the reference voltage (about 1.1V) preset at
the plus side, the output of IC15 becomes at L level, thus turning off
the IC20 transistor to restrict the current flowing to the motor (current
limit setting: about 5A).
Supplied from
the copir
+24V
R27
1K(1/4W)
R28
1K(1/4W)
R26
100(1/4W)
(Fuse resistor)
100(1/4W)
(Fuse resistor)
ZD07
RD11EB
RD11EB
C177
0.1U
0.1U
0.1U
C181
C10
47U/35V
ZD08
RD18FB1
Q05
2SC1472K
+10V
CPU
(IC03)
PA4
PA7
TD62503F
IC103
TD62503F
IC106
FM
IC15
SLA6023
IA1
IB1
IC2
IB2
IA2
GND
Vcc
GND
OA
OB
OC
IC1
3
7
7
10
D10
TD62503F
IC106
TD62503F
IC106
TD62503F
IC106
TD62503F
IC106
TD62503F
IC106
TD62503F
IC106
BR13
1K
3
R183
680
680
680
680
R182
R181
RN108
10K
10K
10K
IC10
IN1
IN2
IN3
IN4
IN5
VCC
IN6
VREF
UPC1246C
OUT1
OUT3
OUT5
OUT6
OUT4
OUT2
REVERSE
GND
C161
0.1U
0.1U
C162
0.1U
0.1U
+5V
5
6
R162
360
R163
2.4K
2.4K
R180
200
R29
0.22
(1W)
(1W)
4 3 2
4 3 2 BR12
1K
3
+24V3
U V W
1
2
8
9
5
12
11
6
4
D09
D11
1SR124-400
3
+
-
-
BA10393F
7
IC104
C182
C183
C184
0.1U
3
+10V
+5V
10K
R164
R174
4.7K
4.7K
+5V
+5V
2 3 4
BR10
2.2K
3
+10V
R172
R171
1.2K
1.2K
1.2K
C165 C166 C167
1000P
3
C11
100U/35V
HW
HV
HU
Transport motor
hall signal
hall signal
97
99
FMDIR
FMPWM/
5
12
7
10
R177
2.2K
2.2K
2.2K
R178
R179
11
12
13
14
15
16
7
9
10
6
5
3
4
2
1
8
C168
0.1U
R169
2.2K
R173
2.2K
R170
4
5
6
11
12
13
1
2
3
16
15
14
PA6
100
FMRE
R112
10K
R109
2.4K
C116
1000P
FMRE
Transport motor
Speed signal
Speed signal
+5V
+5V
BR2-8
10K
10K
RN108
RN108
AR-FN3
8/19/1999
9 – 11
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