Read Sharp AL-1217 (serv.man16) Service Manual online
AL-1226 CIRCUIT DIAGRAM 13 - 3
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
MCU PWB (MEMOR
Y SECTION)
3/9
R138
OPEN
2
1
C174
22u/16V
1
2
+
C176
0.1u
1
2
R137
10kJ
2
1
C177
0.1u
1
2
C178
0.1u
1
2
C179
0.1u
1
2
C180
0.1u
1
2
C181
0.1u
1
2
C182
0.1u
1
2
C183
0.1u
1
2
IC110
SDRAM (16bit x 4bank)
A0
23
A1
24
A2
25
A3
26
A4
29
A5
30
A6
31
A7
32
A8
33
A9
34
A10
22
BA0
20
DQ0
2
DQ1
4
DQ2
5
DQ3
7
DQ4
8
DQ5
10
DQ6
11
DQ7
13
DQ8
42
DQ9
44
DQ10
45
DQ11
47
DQ12
48
DQ13
50
DQ14
51
DQ15
53
VCC
1
VCC
27
VSS
54
VSS
28
VCCQ
9
VSS
41
VCCQ
43
VCCQ
49
VSSQ
6
VSSQ
12
VSSQ
46
VSSQ
52
LDQM
15
UDQM
39
WE
16
CAS
17
RAS
18
CS
19
CLKE
37
CLK
38
NC
40
NC
36
VCCQ
3
VCC
14
BA1
21
A11
35
R139
OPEN
2
1
C173
0.1u
1
2
R269
10kJ
21
IC112
W24L010A
I/O0
13
A0
12
I/O1
14
A1
11
I/O2
15
A2
10
I/O3
17
A3
9
I/O4
18
A4
8
I/O5
19
A5
7
I/O6
20
A6
6
I/O7
21
A7
5
A8
27
A9
26
A10
23
A11
25
A12
4
A13
28
A14
3
CS1
22
OE
24
WE
29
VDD
32
GND
16
CS2
30
A15
31
A16
2
NC
1
C326
OPEN
1
2
C327
OPEN
1
2
C324
OPEN
1
2
C325
OPEN
1
2
R287
0J
2
1
R286
10kJ
2
1
IC111
LH28F400BVE
A0
25
A1
24
A2
23
A3
22
A4
21
A5
20
A6
19
A7
18
A8
8
A9
7
A10
6
A11
5
A12
4
A13
3
A14
2
A15
1
A16
48
A17
17
DQ0
29
DQ1
31
DQ2
33
DQ3
35
DQ4
38
DQ5
40
DQ6
42
DQ7
44
DQ8
30
DQ9
32
DQ10
34
DQ11
36
DQ12
39
DQ13
41
DQ14
43
DQ15
45
NC
9
NC
10
NC
16
GND
46
GND
27
VCC
37
VPP
13
BYTE
47
OE
28
CE
26
WE
11
RP
12
WP
14
RY
/B
Y
15
R288
OPEN
2
1
R289
OPEN
2
1
RAMDB0
RAMDB9
RAMDB10
RAMDB11
RAMDB12
RAMDB13
RAMDB14
RAMDB15
RAMDB7
RAMDB8
RAMDB3
RAMDB1
RAMDB5
RAMDB6
RAMDB2
RAMDB4
MAD8
MAD9
MAD4
MAD5
MAD11
MAD1
MAD0
MAD10
MAD7
MAD12
A17
A1
RDZ
MAD3
MAD2
MAD6
CS1Z
RDZ
HWRZ
A5
A4
A2
A7
A1
A6
A8
A19
A2
A8
A12
A4
A3
A11
A3
A16
A1
A13
A12
A11
A15
A10
A14
A10
A9
A6
A7
A17
A14
A15
A13
A5
A18
A9
A16
A0
HWRZ
D12
D12
D1
D8
D4
D6
D9
D11
D14
D15
D11
D7
D3
D8
D5
D10
D10
D2
D14
D9
D13
D0
D13
D15
VCC3
VCC3
VCC3
VCC3
VCC3
VCC3
/CS0
MAD[12..0]
BANK0
BANK1
/SDCS
/SD
WDE
/SDCAS
/SDRAS
DQM0
DQM1
SDCLK
SDCKE
D[15..0]
RAMDB[15..0]
/CS1
/RD
/HWR
A[19..0]
RY
/B
Y
CPUNRST
(1-C1)
(1-D2)
(1-A2)
(2-D3)
(2-D3)
(2-D3)
(2-D3)
(2-D4)
(2-D4)
(2-D4)
(2-D4)
(2-D4)
(2-D4)
(2-D4)
(2-D4)
12/13/14 CPM
Model
64Mb(1Mx16bitx4bank)
SDRAM
V
endor/T
ype
HY57V641620HGT
-P(Hyndai)
MT48LC4M16A2TG-75(Micron)
K4S641632F-TC75(Samsung)
W986416DH-7(Winbond)
15CPM
128Mb(2Mx16bitx4bank)
MT48LC8M16A2TG-75(Micron)
HY57V281620A
T(Hyndai)
K4S281632D-TC75(Samsung)
W981216BH-75(Winbond)
(1-A2)
(1-B3)
(1-B3)
(1-D3)
(1-B1)
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