Sharp AL2020 Service Manual

AL-2020/2035/2040/2050/2060 CIRCUIT DIAGRAM 14 - 35
A4 A7 A18 A14 A19 A8 A13 A5 A12 A17 A10 A3 A9 A15 A16 A6 A11 A20 A2
D5 D7 D0 D4 D1 D6 D2 D3
D0 D5 D6 D7 D4 D3 D2 D1
A13 A5 A10 A15 A16 A0 A2 A4 A11 A14 A3 A12 A1 A6 A7 A8 A9
A21 A1 A0
A17
+3.3V
GND
GND
GND
GND
GND
BAT+3.3V
GND
+3.3V
+3.3V GND
GND
BAT
GND
GND
BAT+3.3V
GND
GND GND
GND
A[21:0]
D[7:0]
F_RYBY
WEL
CS_S1L
CS_FL
OEL
CS_S0L
RESETL
RTC_DATA
RTC_CLK
RTC_CE0H
CS_S1L
C_BT
L_BT-
F_WP
TP205
R44 20k
TP253
TP208
Q8
KTC3875
C75 100pF
IC10
IS62WV1288BLL
A0
20
A1
19
A2
18
A3
17
A4
16
CE1
30
I/O0
21
I/O1
22
I/O2
23
I/O3
25
VCC
8
I/O4
26
I/O5
27
WE
5
A5
15
A6
14
A7
13
A8
3
NC
9
A12
12
A11
1
A10
31
A9
2
VSS
24
CE2
6
OE
32
A13
4
A14
11
A15
7
A16
10
I/O7
29
I/O6
28
TP82
R100 75
TP86
TP325
Q6
KTA1504
CN2002 B2B-PH-K-S
1 2
R45 1k
R24 1k
D4 1SS355
C40 0.1uF
TP22
JP3 0R
+
C77 47u/25V
C99 0.1uF
X2
DT-38 32.768KHz
TP329
TP204
TP81
TP85
C60 12pF
C61 12pF
C76 0.1uF
TP117
TP207
TP20
TP108
R81 10k
Q1
DTC363EKA
B
E
C
R25 100k
R87 10k
Q7 KTA1504
R69 1k
TP77
TP79
IC6
SM8578BV
DATA
7
I/O-
1
CLK
6
CE
5
XT
2
XT-
3
VDD
8
VSS
4
IC4
PST3426
OUT
1
VCC
2
NC
3
GND
4
TP89
TP203
TP2
TP206
BT1
HL50-A
12
TP83
R48 360
C65 F0.1u/16V
TP209
TP80
TP88
R68 1k
IC9
MBM29LV160BE90TN
A19
9
A18
16
A17
17
A16
48
A15
1
A14
2
A13
3
A12
4
A11
5
A10
6
A9
7
A8
8
A7
18
A6
19
A5
20
A4
21
A3
22
A2
23
A1
24
A0
25
DQ15
45
DQ14
43
DQ13
41
DQ12
39
DQ11
36
DQ10
34
DQ9
32
DQ8
30
DQ7
44
DQ6
42
DQ5
40
DQ4
38
DQ3
35
DQ2
33
DQ1
31
DQ0
29
CE
26
OE
28
WE
11
WP
14
RY/BY
15
VPP
13
BYTE
47
RP
12
VCC
37
GND
27
GND
46
NC
10
ZD4
UDZ2.0B
R47 560
TP78
4 4
3 3
2 2
1 1
D D C C
B B A A
FAX MAIN PWB (SRAM & FLASHROM (16M)) (AL-2060) 3/6

Sharp AL2020 Specifications

General

Brand	Sharp
Model	AL2020
Category	All in One Printer
Language	English