Read Sharp AR-M550 (serv.man22) Service Manual online
AR-555/550/620/625 PCU PWB 4 - 88
4
3
2
1
4
3
2
1
D
C
B
A
12/14
PGMCLK\
(2)
READY\
(14)
START
(2)
LDON
(2)
LSU_S/H\
(2)
PGMCLK
(14)
READY
(2)
START\
(14)
LDON\
(14)
LSU_S/H
(14)
CFM-DC
(3)
CFM-DC\
(14)
14)
CFM-R_PWM
(3)
VFM-EX_PWM
(2)
CFM-UP_PWM
(2)
reserve2
(2)
CFM-UP1_PWM\
(14)
VFM-EX2_PWM\
(14)
CFM-UP2_PWM\
(14)
VFM-EX1_PWM\
(14)
CFM-R1_PWM\
(14)
CFM-R2_PWM\
(14)
TCBPWM
(3)
TCBPWM\
(14)
CFM-DV_PWM
(3)
FBIAS
(2)
CFM-DV_PWM\
(14)
FBIAS\
(14)
INH\
(1)
FTH2
(6,13)
+5V2
+3.3V1
+24V1
+24V1
+24V1
+5V2
Vref
LSU
Fan
Motor
Motor
Fan
Motor
Motor
Fan
Motor
Motor
no-mounting
no-mounting
R
446
4.7K
J
R
462
4.7K
J
IC22
TD62503F
I1
1
I2
2
I3
3
I4
4
I5
5
I6
6
I7
7
G
8
O1
16
O2
15
O3
14
O4
13
O5
12
O6
11
O7
10
SK
9
C241
102K*
R8
8
4.7K
J
R447
5.6KJ
O
I
G
R
100
4.7K
J
IC51
TD62503F
I1
1
I2
2
I3
3
I4
4
I5
5
I6
6
I7
7
G
8
O1
16
O2
15
O3
14
O4
13
O5
12
O6
11
O7
10
SK
9
R
102
4.7K
J
R
461
4.7K
J
R413
10KJ
R9
0
4.7K
J
R8
6
4.7K
J*
R9
8
4.7K
J*
O
I
G
R
445
4.7K
J
R8
7
4.7K
J
R
460
4.7K
J
R9
9
4.7K
J
R
101
4.7K
J
R9
7
1K
J
R
442
4.7K
J
R8
9
4.7K
J
(G)
(D)
(S)
O
I
G
R
103
4.7K
J
R9
1
4.7K
J
Q48
DTC143ZUA
Q49
DTC143ZUA
47K
4.7K
47K
4.7K
Q50
DTC143ZUA
47K
4.7K
Q55
2SK3018
2SK3018
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