DOWNLOAD Sharp ER-A450S (serv.man3) Service Manual ↓ Size: 11.95 MB | Pages: 18 in PDF or view online for FREE

Model
ER-A450S (serv.man3)
Pages
18
Size
11.95 MB
Type
PDF
Document
Service Manual
Brand
Device
ECR / Circuit Diagrams.
File
er-a450s-sm3.pdf
Date

Sharp ER-A450S (serv.man3) Service Manual ▷ View online

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CHAPTER 8. CIRCUIT DIAGRAM &  PWB LAYOUT
1. M
AIN PWB CIRCUIT DIAGRAM
POW
E
R SUPPLY(MAIN PWB)
VCH
+5V
VDD
R112
3.6KF
D4
1SR154
-400
D5
1SR154
-400
ZD2
PT
Z6.2A
C80
1000
uF
16V
R121
180
L1
220u
H
R111
10
D6
SF
PL52V
Q2
3
C415
3
HEAT
 SI
NK
  
1
2
4
3
5
6
  
7
  
8
IC6
KA34063
C266
100u
F
50V
1
2
CN8
PS CN
+24
V
F1
FUS
E
T800mA/2
50V
FROM PS
 PWB
+24
V
GND
C85
220P
C84
0.1uF
50V
VBT
BT
1
BAT
TE
RY
R113
1KF
C86
0.1uF/5
0V
R120
150
C81
330u
F/16V
C82
330u
F/16V
  
2
  
1
CN9
BT
 CN
+5V
/P
0F
F
R118
56K
+24
V
D7
1SS353
R119
2.7K
  
3
  
2
1
8
4
IC7A
BA10393F
  
5
  
6
7
8
4
IC7B
BA10393F
+24
V
<P-OFF C
IRC
UI
T>
C83
1u/50V
R117
2.7K
R114
8.2KG
R115
15KG
R116
9.1KG
ZD1
UDZ5.1B
3-8C
C87
1000
P
8
7
6
5
4
3
2
1
A
B
C
D
1
2
3
4
5
6
7
8
D
C
B
A
2/12
CPU(HD6415108)
/W
R
/RD
/AS
+5
V
+5
V
+5
V
+5
V
3-
8C
3-
8C
3-
8C
C9
2
10
0P
C9
1
10
0P
C9
0
10
0P
R1
30
10
K
R1
36
10
K
R1
34
10
K
R1
32
10
K
+5
V
C9
5
0.1
u
C9
6
47
u1
6V
C9
7
47
u1
6V
R1
35
10
0
R1
33
10
0
R1
31
10
0
(R
12
9)
47
NMI
+5
V
/RES
  1
NMI
  2
VS
S
  3
D0
  4
D1
  5
D2
  6
D3
  7
D4
  8
D5
  9
D6
 10
D7
 11
D8
 12
D9
 13
D1
0
 14
D1
1
 15
D1
2
 16
D1
3
 17
D1
4
 18
D1
5
 19
VS
S
 20
A0
 21
A1
 22
A2
 23
A3
 24
A4
 25
A5
 26
A6
 27
A7
 28
A8
 29
A9
 30
A1
0
 31
A1
1
 32
A1
2
 33
A1
3
 34
A1
4
 35
A1
5
 36
VS
S
 37
A1
6
 38
A1
7
 39
A1
8
 40
A1
9
 41
A2
0
 42
A2
1
 43
A2
2
 44
A2
3
 45
VS
S
 46
WAI
T
 47
BA
CK
 48
BR
EQ
 49
DO
PS
 50
P3
4
 51
P3
5
 52
P36
(DR3
)
 53
P37
(DR4
)
 54
VC
C
 55
P4
0
 56
P4
1
57
P4
2
58
P4
3
59
P4
4
60
NEJ
61
SH
EN
62
OP
BS
63
VS
S
64
TRG
I
65
P5
1
66
P5
2
67
P5
3
68
P5
4
69
FMRS
70
P5
6
71
STO
P
 P
5
7
72
P6
0
73
P6
1
74
P6
2
75
P6
3
76
P6
4
77
P6
5
78
RCO
 P6
6
79
HP P6
7
80
VS
S
81
AV
SS
82
VP
J
83
VP
R
84
VP
TES
T
85
VP
PS
86
AV
CC
87
VC
C
88
IRQ0
89
IRQ1
90
SC
K1
91
SC
K2
92
RXD1
93
TXD1
94
RXD2
95
TXD2
96
VS
S
97
EX
TAL
98
XTA
L
99
VS
S
10
0
PH
AI
10
1
E
10
2
AS
10
3
RD
10
4
HWR
10
5
LW
R
10
6
RFSH
10
7
VC
C
10
8
MD0
10
9
MD1
11
0
MD2
11
1
STB
Y
11
2
IC8
CPU(
HD6
41
51
0
8
)
C9
3
0.1
u
C9
4
0.1
u
5-
6A
3-
8B
+5
V
/RES
ET
R1
64
4.7
K
SR
?
SR
-1
D0
D1
D2
D3
D4
D5
D6
D7
D[0..7]
3-
8C
+5
V
10
K X
8
R1
91
R1
92
R1
94
C1
10
C1
11
C1
12
C1
13
C1
14
C1
15
C1
17
C1
16
R1
87
R1
88
R1
89
R1
90
R1
93
10
0P
X8
+5
V
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A1
0
A1
1
10
K X
8
A[0
..2
3]
3-
8B
+5
V
10
K X
8
R1
96
R1
98
R2
02
R2
01
R2
00
R1
99
R1
97
R1
65
R1
66
R1
67
R1
68
R1
69
R1
70
R1
72
R1
71
R1
95
+5
V
10
K X
8
ER
C
L
DRQ
8-
4B
8-
4B
R1
39
10
0
R1
40
10
0
R1
41
10
0
R1
42
10
0
R1
43
10
0
R1
44
10
0
R1
45
10
0
R1
46
10
0
PD
S
8-
2B
/SHE
N
8-
8B
FRES
BU
SY_
A
/RDY_A
R1
73
R1
74
R1
75
R1
76
R1
77
R1
78
R1
79
R1
80
VC
C
Vr
f
FIL2
10
0P
  1
  3
2
X4
19
.66M
H
z
TM
FVHS
7-
1D
7-
8A
+5
V
D2
8
1S
S3
53
R1
60
3.6
K
"F"
R1
59
16
K"F"
+
24V
TXD2
RXD2
/IRQ0
/IRQ1
PH
AI
+5
V
+5
V
+
5
V
RXD
TXD
+5
V
+
5
V
+5
V
+
5
V
3-
8B
6-
2C
3-
8B
10
-7
C
10
-7
C
3-
8B
3-
8C
SC
K2
+5
V
6-
4B
D8
1S
S3
53
R1
48
16
K"F"
R1
47
3.6
K
"F"
C8
9
47
P
C1
00
NU
R1
26
4.7
K
R1
27
1K
R1
28
1K
R1
49
4.7
K
X
4
R1
23
R1
24
R1
25
/ERS
/CSS
/CDS
/RSS
/RI
/DRS
3-
4A
3-
4A
+5
V
+5
V
+5
V
+5
V
10
-7
C
R1
53
10
K
R1
52
10
K
R1
51
10
K
R1
50
0o
hm
R1
55
10
K
C1
07
10
00
P
  2
  1
CN1
2
NER CN
R2
03
0o
hm
R1
58
0o
hm
/PRS
T
/PTMG
+5
V
R1
37
10
K
R1
38
10
K
C9
9
33
0p
C9
8
33
0p
+5
V
/W
A
IT
+5
V
/BA
C
K
10
0P
X8
C1
34
C1
35
C1
36
C1
37
C1
38
C1
39
C1
40
C1
41
C1
04
10
0P
A1
2
A1
3
A1
4
A1
5
10
0P
X8
A1
6
A1
7
A1
8
A1
9
A2
0
A2
1
A2
2
A2
3
3-
3B
+
24V
7-
6C
10
0P
X8
C1
19
C1
20
C1
21
C1
23
C1
28
C1
29
C1
18
C1
22
C1
24
C1
25
C1
27
C1
26
C1
30
C1
31
C1
32
C1
33
+
24V
C1
06
10
0U
/35
V
CO
M
DS
/DRAW
1
+
24V
DS
/DRAW
0
+
24V
  9
 16
  2
  7
 15
 10
  4
  5
 1
 8
 3
 6
14
11
12
13
IC9
TD
62
30
8F
1
2
3
CN1
1
DR CN
1
2
3
CN1
0
DR CN
C1
03
0.1
U
C1
09
0.1
U
C1
01
0.1
U
C1
02
0.1
U
<NOTE>
/FRES
BU
SY
4-
4C
/BRE
Q
/DR0
/DR1
4-
4C
7-
7A
/RDY
R1
22
10
K
C8
8
10
0P
R1
61
22
K
R1
63
47
K
C1
05
10
00
P
C1
42
10
00
P
C1
43
10
00
P
C1
44
10
00
P
R1
62
4.7
K
C5
0
FRES
BU
SY_
A
/RDY_A
+5
V
+5
V
+5
V
R1
85
10
K
R1
86
10
K
R1
82
10
0
R1
83
10
0
R1
81
10
0
NOTE
R1
84
10
K
C1
45
33
0P
C1
46
33
0P
C1
47
33
0P
R1
54
10
K
R1
56
10
K
R1
57
0o
hm
C1
08
10
00
P
  2
  1
CN1
3
NEJ
 CN
R15
0
,15
3
,15
5
,15
7
 : 
E
R
A4
50
 O
N
LY
R15
1
,15
6
,15
8
,20
3
 : 
E
R
A4
55
 O
N
LY
>>>>> USE FONT <<<<<
Helvetica/ Helvetica-Condensed/ Century-Schoolbook/ Symbol & OriginalFonts: (RingWorld2/RingFont2/Pa
Symbol/PartsCod)
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8
7
6
5
4
3
2
1
A
B
C
D
1
2
3
4
5
6
7
8
D
C
B
A
3/12
GATE ARRAY(MPCA7)
FRD
FS
C
K
FS
D
4-
4C
4-
4C
+5V
+5V
/TWA
IT
7-
6B
R22
9
10
K
R22
7
10
0
R22
8
10
0
R22
6
10
0
C17
0
10
0P
+5V
RF
  1
JF
  2
PCUT
  3
FCUT
  4
VF
  5
ST
AM
P
  6
SL
F
  7
SL
RS
  8
SL
M
T
D
  9
RES
 10
TRG
 11
TRG
 12
INT0
 13
INT1
 14
HTS1
 15
SCK
1
 16
ST
H1
 17
RASVZ
 18
N.U
 19
VCC
 20
VS
S
 21
INTMC
R
 22
VRE
S
C
 23
SL
TM
G
 24
SL
RS
T
 25
AS
 26
RD
 27
WR
 28
PHA
I
 29
SDT6
 31
SDT5
 32
VS
S
 33
SDT4
 34
SDT3
 35
SDT2
 36
SDT1
 37
D0
 38
D1
 39
D2
 40
D3
 41
VS
S
 42
D4
 43
D5
 44
D6
 45
D7
 46
RESET
 48
SS
PRQ
 47
INT2
 49
INT3
 50
RXDI
 51
TX
D
I
 52
SCK
1
 53
IRQ0
 54
A0
 55
A1
 56
A2
 57
A3
 58
A4
 59
A5
 60
EX
IN
T0
12
0
EX
IN
T1
11
9
EX
IN
T2
11
8
EX
IN
T3
11
7
WR
0
11
6
RD0
11
5
RA15
11
4
RA16
11
3
VS
S
11
2
RA17
11
1
RA18
11
0
EX
WA
IT
10
9
WA
IT
10
8
MCR
2
10
7
MCR
1
10
6
DAX2
10
5
DAX1
10
4
RCRX
10
3
IRRX
10
2
VS
S
10
1
VCC
10
0
UATX
99
UARX
98
UASCK
97
IRTX
96
RCO
95
RCVRDY2
94
PT
MG
83
TRGI
82
A2
3
81
LCD
C
 80
A2
2
 79
A2
1
 78
A2
0
 77
A1
9
 76
A1
8
 75
A1
7
 74
A1
6
 73
A1
5
 72
A1
4
 71
A1
3
 70
A1
2
 69
A1
1
 68
A1
0
 67
A9
 66
A8
 65
A7
 64
A6
 63
VCC
 62
VS
S
 61
PRS
T
84
RCVRDY1
93
MA
19
92
MA
18
91
MA
15
90
TE
ST
89
MD0
88
MD1
87
IP
LON
86
INT4
85
SDT7
 30
RASP
16
0
DOTEN
15
9
TW
AIT
15
8
N.U
15
7
N.U
15
6
N.U
15
5
N.U
15
4
N.U
15
3
ST
H2
15
2
SCK
2
15
1
HTS2
15
0
SL
M
T
R
14
9
SL
M
T
S
14
8
SL
M
T
D
14
7
RJMTR
14
6
RAS3
14
5
NU
14
4
VS
S
14
3
VCC
14
2
AS
KRX
14
1
SY
NC
14
0
DOT8
13
9
DOT9
13
8
RJMTD
13
7
RJMTS
13
6
DOT5
13
5
DOT6
13
4
D0T7
13
3
VS
S
13
2
DOT1
13
1
DOT2
13
0
DOT3
12
9
DOT4
12
8
RJTMG
12
7
RJRST
12
6
RAS1
12
5
RAS2
12
4
ROS2
12
3
ROS1
12
2
OP
TCS
12
1
IC10
G.A
(MPCA
7)
/RE
S
+5V
+
5V
+5V
+
5V
+5V
6-
2C
C14
8
0.0
1
u
(R
204
)
10
K
R20
7
10
K
R20
8
10
K
R20
5
10
K
R20
6
10
K
VRE
S
C
/A
S
/RD
/W
R
PHA
I
D[0.
.7]
+5V
+5V
D0
D1
D2
HTS
/S
CK
ST
H
/P
OFF
C14
9
33
0P
C15
0
33
0P
C15
1
33
0P
C15
2
33
0P
C15
3
33
0P
R21
0
10
K
1-
1A
8-
4B
8-
7A
8-
4B
2-
1D
2-
1D
2-
1D
2-
1C
7-
2C
R20
9
10
K
+5V
+5V
+5V
+
5V
+5V
+5V
R22
5
10
K
C16
6
10
00P
C16
7
10
00P
C16
8
10
00P
R23
1
10
K
R21
6
10
K
R21
7
10
K
R21
8
10
K
R21
9
10
K
+5V
+
5V
+5V
RAS3
/ROS1
RAS2
RAS1
+5V
+
5V
/OPTCS
5-
7C
5-
5D
5-
3D
7-
7B
5-
7B
4-
4C
+5V
/TPR
CRQ
R22
0
10
K
R22
1
10
K
R22
2
10
K
R22
3
10
K
R22
4
10
K
R23
0
10
K
/E
XINT0
/RD0
/W
R0
C16
1
33
0P
C16
2
33
0P
C16
3
33
0P
C16
4
33
0P
C16
5
33
0P
6-
2C
6-
2C
6-
2C
/TRQ1
6-
2C
C16
9
33
0P
/W
AIT
+5V
+5V
+
5V
+5V
C15
7
33
0P
C15
8
33
0P
C15
9
33
0P
C16
0
33
0P
2-
6B
R21
3
10
K
R21
5
10
K
R21
4
10
K
A
[0..23
]
D3
D4
D5
D6
D7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A1
0
A1
1
A1
2
5-
6A
2-
5C
2-
1C
2-
1C
2-
1C
2-
1C
NMI
/R
ES
ET
RXD2
TX
D
2
SCK
2
/IRQ0
/S
HEN
8-
8B
A1
3
A1
4
A1
5
A1
6
A1
7
A1
8
A1
9
A2
0
A2
1
A2
2
A2
3
+5V
+5V
/P
RST
/P
T
M
G
MA
15
R21
1
10
K
2-
2A
2-
2A
5-
8B
/RDY
4-
4C
R21
2
10
K
C15
5
10
u50V
C15
6
0.1
u
C15
4
0.1
u
8
7
6
5
4
3
2
1
A
B
C
D
1
2
3
4
5
6
7
8
D
C
B
A
4/12
FMC (NOT USED)
+5V
+
5V
+5V
+
5V
+24
  
1
2
3
IC11
KIA7812
Q2
4
KTA1664
VR1
5K
R232
820
C172
10u/
50V
R234
3.3
K
C171
0.1
u
/50V
R233
1.2
K
R241
68 "F"
C173
0.1
u
/50V
VCH
/FRE
S
FSD
FRD
FSCK
BUS
Y
2-
5C
3-
1D
3-
1D
3-
1D
2-
5C
3-
3A
/RDY
2-
5C
R239
56K
R240
56K
R238
56K
R237
56K
GND
  
1
VP
P
  
2
VCH
  
3
FRES
  
4
FSD
  
5
FRD
  
6
FSCK
  
7
BUS
Y
  
8
RDY
  
9
VCO
N
 10
VP
F
 11
CN14
FMC CN
+5V
JP
2
Q2
5
A1036
Q2
6
KRC106S
R236
10K
R235
3.9
K
NOT USE
Page of 18
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Sharp ER-A450S (serv.man3) Service Manual ▷ Download

  • DOWNLOAD Sharp ER-A450S (serv.man3) Service Manual ↓ Size: 11.95 MB | Pages: 18 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp ER-A450S (serv.man3) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp ER-A450S (serv.man3) ECR. Information contained in Sharp ER-A450S (serv.man3) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.