DOWNLOAD Sharp ER-A280 / ER-A280N / ER-A280F (serv.man5) Service Manual ↓ Size: 5.62 MB | Pages: 56 in PDF or view online for FREE

Model
ER-A280 ER-A280N ER-A280F (serv.man5)
Pages
56
Size
5.62 MB
Type
PDF
Document
Service Manual
Brand
Device
ECR / ER-A280 Service Manual
File
er-a280-er-a280n-er-a280f-sm5.pdf
Date
PREV: Sharp ER-A280 / ER-A280N / ER-A280F (serv.man4) Service Manual

Sharp ER-A280 / ER-A280N / ER-A280F (serv.man5) Service Manual ▷ View online

ER-A280F/A280N (V)
CIRCUIT DIAGRAM & PWB LAYOUT
8 – 15
■ 
LCD I/F PWB
3/5
C
D
B
A
C
D
B
A
876
5
4
321
8
76
5
4
321
D9
D10
D1
1
D8
D12
D13
D14
D15
D9
D10
D11
D8
D12
D13
D14
D15
CS#
A0
E_A
R/W#
RES#
CS#
A0
E_A
R/W#
RES#
LCDON
VREF-L
LCDON_PWM
LCDON_PWM
LCDON
VCC3
VCC5
VBL-
VBL+
VCC3
VCC5
VBL+
VBL-
VCC5
f
/
i
 
e
l
u
d
o
M
 
D
C
L
f
/
i
 
B
W
P
 
N
I
A
M
to Back-Light
USE RIGHT ANGLE CONNECTOR
not mount
not mount
C24
(470pF)
C24
(470pF)
1
2
CN7
S2B-ZR-SM4A-TF(JST)
CN7
S2B-ZR-SM4A-TF(JST)
R231
16KF
R231
16KF
R234
(NU)
R234
(NU)
C16
1uF
C16
1uF
C7
1uF
C7
1uF
C20
0.33uF
C20
0.33uF
1
TP3
TEST
 POINT
TP3
TEST
 POINT
C15
1uF
C15
1uF
C22
2.2uF (2125)
C22
2.2uF (2125)
C6
1uF
C6
1uF
R235
100
R235
100
C32
10uF
C32
10uF
C21
2.2uF (2125)
C21
2.2uF (2125)
C9
1uF
C9
1uF
C14
0.1uF
C14
0.1uF
C13
1uF
C13
1uF
R232
150K
R232
150K
C18
1uF
C18
1uF
C10
1uF
C10
1uF
R13
15F
R13
15F
PA
D
1
PA
D
1
C26
0.1uF
C26
0.1uF
C1
1
1uF
C1
1
1uF
C8
1uF
C8
1uF
R1
1
1M
R1
1
1M
C25
1uF
C25
1uF
C31
0.1uF
C31
0.1uF
C23
(470pF)
C23
(470pF)
C19
0.47uF
C19
0.47uF
C5
1uF
C5
1uF
A
C
D21
RB160M-40
D21
RB160M-40
D
G
S
Q10
2SK3541
Q10
2SK3541
C12
1uF
C12
1uF
R17
47K
R17
47K
B
E
C
Q1
1
(DT
A1
14EKA)
Q1
1
(DT
A1
14EKA)
3.3V
1
3.3V
2
CS#
3
A0
4
E-CLK
5
R/W#
6
GND
7
GND
8
D8
9
D9
10
D10
11
D1
1
12
D12
13
D13
14
D14
15
D15
16
GND
17
RES#
19
GND
18
LCDON
20
VCC5
21
VCC5
22
00 6200 227 032 800+
CN6
00 6200 227 032 800+
CN6
R70
(10K)
R70
(10K)
R236
16KF
R236
16KF
R233
(100)
R233
(100)
C17
1uF
C17
1uF
VCI1
36
C11
-
35
C11
+
34
C12-
33
C12+
32
VOU
T
31
VSH
30
VM
29
VREFM
28
VREFL
27
C86
26
VSS
25
VDD
24
VCC
23
CSB
22
A0
21
E
20
R/WB
19
D8
18
D9
17
D10
16
D11
15
D12
14
D13
13
D14
12
D15
11
VCI2
10
C21-
9
C21+
8
C22-
7
C22+
6
VCH
5
VCL
4
CEM
3
CEP
2
RESB1
1
CN5
04-6240-036-013-894+(ELCO)
CN5
04-6240-036-013-894+(ELCO)
L1
22uH (#A915A
Y
-220M=P3)
L1
22uH (#A915A
Y
-220M=P3)
SHDN
1
OVD
2
VIN
3
SW
4
FB
6
GND
5
TB62752AFUG
IC4
TB62752AFUG
IC4
R12
(47K)
R12
(47K)
1
TP2
TEST
 POINT
TP2
TEST
 POINT
A
C
D1
1
RB521S-30
D1
1
RB521S-30
R237
75KF
R237
75KF
R230
(NU)
R230
(NU)
ER-A280F/A280N (V)
CIRCUIT DIAGRAM & PWB LAYOUT
8 – 16
■ 
PRINTER I/F PWB
4/5
C
D
B
A
C
D
B
A
876
5
4
321
8
76
5
4
321
HDUP
HDUP
PE_LED
PE_LED
VH
VH
VCC3B
VCC3B
PHE_2
VSEN_2
VH = 7.5V
Max x.x 
A
A
v
e 1.0 
A
VH = 7.5V
Max x.x 
A
A
v
e 1.0 
A
PE_LED = 5.0V
Max 100mA
PE_LED = 5.0V
Max 100mA
HEAD UP SENSOR
for EPSON
GND
30
PE_LED
29
PES_1
28
PES_2
27
HDUP
26
VH
25
VH
24
DI
23
CLK
22
GND
21
GND
20
STB6
19
STB5
18
STB4
17
VDD
16
TM
15
TM
14
STB3
13
STB2
12
STB1
11
GND
10
GND
9
LA
T#
8
PR_VH
7
VH
6
VH
5
A
4
A#
3
B
2
B#
1
CN9
00 6208 530 310 000
CN9
00 6208 530 310 000
1
TP4
TEST
 POINT
TP4
TEST
 POINT
1
TP5
TEST
 POINT
TP5
TEST
 POINT
R15
120
R15
120
1
2
J1
53398-0271
J1
53398-0271
PHK_2
1
VSEN_2
2
PHE_2
3
CN8
(53398-0371)
CN8
(53398-0371)
R14
120
R14
120
PHK
1
VSEN
2
PHE
3
SW
4
SW
5
VH
6
VH
7
DI
8
CLK
9
GND
10
GND
11
STB6
12
STB5
13
STB4
14
VDD
15
TM
16
TM
17
STB3
18
STB2
19
STB1
20
GND
21
GND
22
LA
T#
23
DO
24
VH
25
VH
26
A
27
A#
28
B
29
B#
30
CN10
00 6208 530 310 000
CN10
00 6208 530 310 000
LED current limit resistor
ER-A280F/A280N (V)
CIRCUIT DIAGRAM & PWB LAYOUT
8 – 17
■ 
SENSOR
5/5
C
D
B
A
C
D
B
A
876
5
4
321
8
76
5
4
321
VSEN_21
PHE_21
1
2
3
4
PD1
CNB1302010LF
PD1
CNB1302010LF
PHK_2
1
VSEN_2
2
PHE_2
3
CN1
1
53047-0310
CN1
1
53047-0310
C33
330pF
C33
330pF
ER-A280F/A280N (V)
CIRCUIT DIAGRAM & PWB LAYOUT
8 – 18
1/1
C
D
B
A
C
D
B
A
876
5
4
321
8
76
5
4
321
G7
G8
G9
CHK_REAR
G1
G3
G4
G5
G6
CHK_RETURN
A#
B#
A#
B#
G6
G5
G2
G1
G#
F#
E#
D#
C#
D#
E#
F#
G#
DP#
G10
G2
DP#
G9
G10
G4
G3
G7
G8
C#
CHK_RETURN
CHK_REAR
A#
A#
G4
G4
G2
G2
A#
A#
F#
F#
G3
G3
E#
E#
D#
D#
DP#
DP#
G3
G3
G2
G2
DP#
DP#
D#
D#
G1
G1
G5
G5
G5
G5
D#
D#
F#
F#
GNEQ %QPVCEVNQYGTOQNGZ %QPVCEVWRRGT
MHH6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
18
15
16
17
20
19
CN1
00 6232 020 104 800 (1mmPitch)00 6232 020 104 800 (1mmPitch)
MJ8
JP
MHH13
MSN3
MJ2
JPJP
MHH12
MHH11
MJ10
JPJP
MJ18
JPJP
MJ11
JP
MHH29
MJ1
JP
MSN6
MHH38
MSS1
7
6
4
1
3
8
9
2
10
5
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED3
KD4022-S2
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED3
KD4022-S2
MSN5
7
6
4
1
3
8
9
2
10
5
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED5
KD4022-S2
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED5
KD4022-S2
MSN4
M1
MSS4
MJ12
JP
MJ23
JPJP
7
6
4
1
3
8
9
2
10
5
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED1
KD4022-S2
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED1
KD4022-S2
MJ22
JPJP
MSS3
MJ3
JP
MHH22
MSS2
MJ13
JP
MJ4
JP
MJ6
JP
MHH32
MJ5
JP
MHH5
7
6
4
1
3
8
9
2
10
5
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED2
KD4022-S2
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED2
KD4022-S2
MJ24
JP
MHH1
MH1
MHH4
MH4
MJ7
JP
MHH19
MHH10
MHH3
MH3
MHH16
MHH9
MHH2
MH2
MJ21
JP
MJ9
JP
7
6
4
1
3
8
9
2
10
5
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED4
KD4022-S2
5
10
89
3
2
1
4
6
7
ab
c
de
f
dp
g
7
9
8
3
2
1
4
6
DIG1
DIG2
LED4
KD4022-S2
MHH15
MHH8
R1
0
R1
0
MHH25
MHH14
MHH7
MHH35
3.
REAR DISPLA
Y PWB
Page of 56
Display

Click on the first or last page to see other ER-A280 / ER-A280N / ER-A280F (serv.man5) service manuals if exist.

RANDOM: