Read Sharp AM-400 (serv.man4) Service Manual online
AM-400DE
6 – 3
3. Memory Block (2/10)
Memory
Block
2/10
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
6
6
5
5
4
4
3
3
2
2
1
1
SDRAM_ADDR2
SDRAM_ADDR1
SDRAM_ADDR6
SDRAM_DATA14
SDRAM_ADDR8
SDRAM_DATA8
SDRAM_ADDR12
SDRAM_ADDR12
SDRAM_DATA5
SDRAM_ADDR11
SDRAM_ADDR5
SDRAM_DATA2
SDRAM_ADDR3
SDRAM_DATA12
SDRAM_DATA9
SDRAM_DATA7
SDRAM_DATA1
SDRAM_ADDR0
SDRAM_ADDR7
SDRAM_DATA0
SDRAM_ADDR9
SDRAM_ADDR4
SDRAM_ADDR10
SDRAM_DATA10
SDRAM_ADDR4
SDRAM_DATA6
SDRAM_DATA8
SDRAM_DATA4
SDRAM_ADDR1 SDRAM_ADDR2
SDRAM_ADDR5
SDRAM_DATA11
SDRAM_DATA15
SDRAM_DATA13
SDRAM_DATA0
SDRAM_ADDR0
SDRAM_DATA6
SDRAM_ADDR7
SDRAM_ADDR3
SDRAM_DATA4
SDRAM_ADDR11
SDRAM_ADDR9
SDRAM_DATA10
SDRAM_DATA7
SDRAM_DATA1
SDRAM_ADDR6
SDRAM_ADDR10
SDRAM_DATA9
SDRAM_DATA3
SDRAM_ADDR8
SDRAM_DATA5
SDRAM_DATA3
SDRAM_DATA2
+3.3V
+3.3V
DG
DG
+3.3V
DG
DG
DG
DG
DG
DG
DG
+5V
DG
+3.3V
DG
DG
DG
+3.3V
+3.3V
SDRAM_ADDR[12:0]
/SDRAM_CS0
SDRAM_DQMA1
/SDRAM_CAS
/SDRAM_WE
SDRAM_CKE
/SDRAM_RAS
SDRAM_BANK0
SDRAM_DQMA0
SDRAM_BANK1
SDRAM_CLK
SDRAM_DATA[15:0]
SDRAM_BANK0
/SDRAM_RAS
/FLASH_WP
SDRAM_ADDR[12:0]
/ROM_CS
/SDRAM_CAS
SDRAM_BANK1
SDRAM_DQMA0
SDRAM_DATA[15:0]
/SDRAM_WE
/RESET
SDRAM_DQMA1
/RESET
/RESET
TCK
TDI
TMS
TDO
/RESET
TP68
C66 1U
C67 1U
R104 4.7K
R90
10K
C73 0.1U
C64 1U
R89
10K
BR14 33
x4
BR13 33
x4
M/R
1
SUB
2
GND
3
VOUT
4
VCC
5
IC5
PST596CMT
TP69
R97
N.M.
C68 1U
TP72
R99 N.M.
G
D
S
Q1
Q2
N.M.
C71
1U
(1608)
BR12 33
x4
R92
10K
R95
N.M.
C65 1U
C76 0.1U
R103
0
C70 1U
TP70
R91
10K
GND
27
GND
46
VC
C
37
IO0
29
IO1
31
IO2
33
IO3
35
IO4
38
IO5
40
IO6
42
IO7
44
IO8
30
IO9
32
IO10
34
IO11
36
IO12
39
IO13
41
IO14
43
IO15
45
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
A19
9
N.C.(A20)
10
VCCW
13
WP
14
WE
11
RP
12
BYTE
47
CE
26
OE
28
RY/BY
15
A18
16
IC6
LH28F160BJE-BTL90
C72 N.M.
R102 N.M.
TP73
C74 0.1U
C75 1000P
R96
N.M.
TP67
B
E
C
N.M.
R100
0
R101 N.M.
TP71
VSS
28
RAS
18
WE
16
CAS
17
VSS
41
VSS
54
VDD
27
VDD
14
VDD
1
BA0
20
BA1
21
A0
23
A1
24
A2
25
A3
26
A4
29
A5
30
A6
31
A7
32
A8
33
A9
34
A10
22
A11
35
VDDQ
49
VDDQ
43
VDDQ
9
VDDQ
3
VSSQ
52
VSSQ
46
VSSQ
12
VSSQ
6
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
LDQM
15
UDQM
39
CS
19
CLK
38
CKE
37
A12
36
N.C.
40
IC4
2M*16bit*4bank
SDRAM
C69 1U
R93
N.M.
R94
N.M.
BR11 33
x4
R98 1K
(1-G6)(2-B3)
(1-G4)(2-A2) (2-D2)(2-G5)
(1-G4)(2-A2)(2-D2)(2-H3)
(1-G6)
(1-F6)(2-C2) (1-F6)(2-C2)
(1-F5)
(1-F5)
(1-G5)(2-B3)
(1-F5)(2-C2)
(1-F5)(2-C2)
(1-F5)(2-C2)
(1-F5)(2-C2)
(1-F5)(2-C2)
(1-C3)
(1-F6)
(1-G6)(2-E6)
(1-F6)(2-B4)
(1-F6)(2-B4)
(1-G5)(2-A6)
(1-F5)(2-B5)
(1-F5)(2-B5)
(1-F5)(2-B5)
(1-F5)(2-B5)
(1-F5)(2-B5)
(1-G4)(2-D2) (2-G5)(2-H3)
(1-G4)(2-A2) (2-G5)(2-H3)
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