Read Sharp AR-EB7 (serv.man5) Service Manual online
AR-EB7
CIRCUIT DIAGRAM
– 14 –
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
3/4
*change-1(2003.3.17)
SDRAM_ADDR5
SDRAM_ADDR3
SDRAM_ADDR11
SDRAM_ADDR8
SDRAM_ADDR1
SDRAM_ADDR6
SDRAM_ADDR0
SDRAM_BANK1
SDRAM_ADDR9
SDRAM_ADDR7
SDRAM_ADDR10
SDRAM_ADDR4
SDRAM_ADDR12
SDRAM_BANK0
SDRAM_ADDR2
SDRAM_CAS_L
SDRAM_RAS_L
_SDRAM_DATA1
_SDRAM_DATA0
_SDRAM_DATA15
_SDRAM_DATA2
_SDRAM_DATA14
_SDRAM_DATA7
_SDRAM_DATA8
_SDRAM_DATA12
_SDRAM_DATA11
_SDRAM_DATA9
_SDRAM_DATA13
_SDRAM_DATA6
_SDRAM_DATA3
_SDRAM_DATA5
_SDRAM_DATA4
_SDRAM_DATA10
A_SDRAM_BANK0
A_SDRAM_BANK1
A_SDRAM_DATA13
A_SDRAM_DATA8
A_SDRAM_DATA11
A_SDRAM_DATA7
A_SDRAM_DATA4
A_SDRAM_DATA1
A_SDRAM_DATA14
A_SDRAM_DATA8
A_SDRAM_DATA2
A_SDRAM_DATA6
A_SDRAM_DATA12
A_SDRAM_DATA12
A_SDRAM_DATA2
A_SDRAM_DATA10
A_SDRAM_DATA5
A_SDRAM_DATA3
A_SDRAM_DATA5
A_SDRAM_DATA15
A_SDRAM_DATA4
A_SDRAM_DATA10
A_SDRAM_DATA11
A_SDRAM_DATA3
A_SDRAM_DATA9
A_SDRAM_DATA0
A_SDRAM_DATA14
A_SDRAM_DATA6
A_SDRAM_DATA0
A_SDRAM_DATA1
A_SDRAM_DATA15
A_SDRAM_DATA13
A_SDRAM_DATA9
A_SDRAM_DATA7
A_SDRAM_ADDR11
A_SDRAM_ADDR8
A_SDRAM_ADDR4
A_SDRAM_ADDR6
A_SDRAM_ADDR10
A_SDRAM_ADDR5
A_SDRAM_ADDR9
A_SDRAM_ADDR7
A_SDRAM_ADDR3
A_SDRAM_ADDR2
A_SDRAM_ADDR12
A_SDRAM_ADDR0
A_SDRAM_ADDR1
A_SDRAM_CS1A_L
A_SDRAM_CS1B_L
A_SDRAM_BANK[1:0]
A_SDRAM_DATA[15:0]
SDRAM_ADDR[12:0]
A_SDRAM_CAS_L
_SDRAM_DATA[15:0]
A_SDRAM_RAS_L
SDRAM_BANK[1:0]
A_SDRAM_WE_L
A_SDRAM_ADDR[12:0]
A_SDRAM_DQMB0
A_SDRAM_DQMB1
A_SDRAM_DQMA0
A_SDRAM_DQMA1
DIR
OE
SDRAM_CAS_L
_SDRAM_DQMA1
_SDRAM_DQMB0
_SDRAM_DQMA0
_SDRAM_DQMB1
SDRAM_WE_L
SDRAM_RAS_L
_SDRAM_CS1B_L
_SDRAM_CS1A_L
_SDRAM_CS1A_L
SDRAM_CAS_L
SDRAM_WE_L
_SDRAM_CS1B_L
_SDRAM_CLK
DIR
SDRAM_RAS_L
OE
RESET_L
USB_CS
USB_ALE
PB_NAE0
PB_NCS3
EPSONTEST
EPSONINP1
3.3V
3.3V
3.3V
3.3V
TP864
OE
TP869
AD
TP868
AD
TP903
TP
TP862
AD
TP860
AD
TP879
BD
C121
0.1U
R418
4.7KJ
BR36
0JX4
1
8
2
7
3
6
4
5
TP908
T
P
BR401
0JX4
1
8
2
7
3
6
4
5
TP951
TEST_OU
T
1
BR43
10KJX4
1
8
2
7
3
6
4
5
TP900
TP
BR40
10KJX4
1
8
2
7
3
6
4
5
TP953
USB_ALE
TP904
T
P
TP876
BD
R400
0
J
BR400
0JX4
1
8
2
7
3
6
4
5
IC26
74VCX16245
2
3
5
6
8
9
11
12
47
46
44
43
41
40
38
37
4
10
15
21
28
34
39
45
36
35
33
32
30
29
27
26
13
14
16
17
19
20
22
23
1
24
48
25
7
18
31
42
1B1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1A8
GND
GND
GND
GND
GND
GND
GND
GND
2A1
2A2
2A3
2A4
2A5
2A6
2A7
2A8
2B1
2B2
2B3
2B4
2B5
2B6
2B7
2B8
1DIR
2DIR
1OE
2OE
VCC
VCC
VCC
VCC
TP942
NA1_OUT
TP867
BD
IC29
74VCX16244
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
43
44
46
47
37
38
40
41
32
33
35
36
26
27
29
30
1
24
25
48
4
10
15
21
28
34
39
45
7
18
31
42
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
1A4
1A3
1A2
1A1
2A4
2A3
2A2
2A1
3A4
3A3
3A2
3A1
4A4
4A3
4A2
4A1
1OE
4OE
3OE
2OE
GND
GND
GND
GND
GND
GND
GND
GND
VCC
VCC
VCC
VCC
TP866
BD
C120
0.1U
TP865
BD
TP909
T
P
TP863
OE
TP954
USB_CS
C129
0.1U
TP861
AD
C122
0.1U
TP901
TP
TP952
TEST_OU
T
2
TP874
OE
BR38
0JX4
1
8
2
7
3
6
4
5
C123
0.1U
TP870
AD
IC28
74VCX16244
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
43
44
46
47
37
38
40
41
32
33
35
36
26
27
29
30
1
24
25
48
4
10
15
21
28
34
39
45
7
18
31
42
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
1A4
1A3
1A2
1A1
2A4
2A3
2A2
2A1
3A4
3A3
3A2
3A1
4A4
4A3
4A2
4A1
1OE
4OE
3OE
2OE
GND
GND
GND
GND
GND
GND
GND
GND
VCC
VCC
VCC
VCC
TP905
T
P
TP856
DIR
TP949
NA1_IN1
C119 10U/16V
BR402
0JX4
1
8
2
7
3
6
4
5
BR42
0JX4
1
8
2
7
3
6
4
5
TP947
NA2_IN2
TP948
NA2_IN1
TP871
AD
C130
0.1U
BR403
0JX4
1
8
2
7
3
6
4
5
TP906
T
P
BR404
0JX4
1
8
2
7
3
6
4
5
TP950
NA1_IN2
TP872
AD
TP902
TP
BR37
0JX4
1
8
2
7
3
6
4
5
BR39
10KJX4
1
8
2
7
3
6
4
5
C125
0.1U
TP857
OE
BR41
10KJX4
1
8
2
7
3
6
4
5
C128
0.1U
TP877
BD
TP943
NA2_OUT
IC35
ASIC(RH-IX0026QSZZQ)
1
2
3
4
5
6
7
8
9
10
11
12
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
VDD
RAS_L
CS1B_L
VSS
_SDRAM_CLK
VSS
RESET_L
VDD
VSS
DIR
OE
VSS
VDD
NA1_OUT
TEST_OUT1
VSS
NA1_IN1
NA1_IN2
VDD
NA2_OUT
VSS
TEST_OUT2
VDD
VSS
VDD
NA2_IN1
NA2_IN2
TSTEN
VSS
VDD
TEST_IN
USB_ALE
USB_CS
PB_NCS3
PB_NAE0
VSS
VDD
WE_L
VSS
CAS_L
INP2
INP1
VDD
VDD
VSS
INP0
CS1A_L
VSS
TP910
T
P
TP873
OE
C124
0.1U
TP907
T
P
TP875
BD
C131
0.1U
TP878
BD
BR405
0JX4
1
8
2
7
3
6
4
5
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