Sharp AR-NB2A (serv.man2) Service Manual ▷ View online
AR-NB2A ELECTRICAL SECTION 7 - 5
TP553
C60
0.1
uF
C61
0.1
uF
C49
0.1
uF
C51
0.1
uF
C56
0.1
uF
C57
0.1
uF
IC5
N
T5SV16M16BS-75B
A0
23
A1
24
A2
25
A3
26
A4
29
A5
30
A6
31
A7
32
A8
33
A9
34
A10/AP
22
A11
35
Q
D0
2
Q
D1
4
Q
D2
5
Q
D3
7
Q
D4
8
Q
D5
10
Q
D6
11
Q
D7
13
Q
D8
42
Q
D9
44
Q
D10
45
Q
D11
47
Q
D12
48
Q
D13
50
Q
D14
51
Q
D15
53
VCC
Q
3
VCC
Q
9
VCC
Q
43
VCC
Q
49
VSS
Q
6
VSS
Q
12
VSS
Q
46
VSS
Q
52
CAS
#
17
RAS
#
18
CS
#
19
W
E
#
16
CLK
38
CKE
37
UD
Q
M
39
LD
Q
M
15
BS0
20
BS1
21
VCC
1
VCC
14
VCC
27
VSS
28
VSS
41
VSS
54
A12
36
N
C
40
C50
0.1
uF
IC6
N
T5SV16M16BS-75B
A0
23
A1
24
A2
25
A3
26
A4
29
A5
30
A6
31
A7
32
A8
33
A9
34
A10/AP
22
A11
35
Q
D0
2
Q
D1
4
Q
D2
5
Q
D3
7
Q
D4
8
Q
D5
10
Q
D6
11
Q
D7
13
Q
D8
42
Q
D9
44
Q
D10
45
Q
D11
47
Q
D12
48
Q
D13
50
Q
D14
51
Q
D15
53
VCC
Q
3
VCC
Q
9
VCC
Q
43
VCC
Q
49
VSS
Q
6
VSS
Q
12
VSS
Q
46
VSS
Q
52
CAS
#
17
RAS
#
18
CS
#
19
W
E
#
16
CLK
38
CKE
37
UD
Q
M
39
LD
Q
M
15
BS0
20
BS1
21
VCC
1
VCC
14
VCC
27
VSS
28
VSS
41
VSS
54
A12
36
N
C
40
C52
0.1
uF
C62
0.1
uF
C58
0.1
uF
C59
0.1
uF
C53
0.1
uF
C54
0.1
uF
C55
0.1
uF
C
N
2
DM-3B1-
N
1210
VSS
1
VSS
2
D
Q
0
3
D
Q
1
5
D
Q
2
7
D
Q
3
9
D
Q
4
13
D
Q
5
15
D
Q
6
17
D
Q
7
19
VSS
21
VSS
22
D
Q
M0
23
D
Q
M4
24
D
Q
M1
25
D
Q
M5
26
A0
29
A3
30
A1
31
A4
32
A2
33
A5
34
VSS
35
VSS
36
D
Q
8
37
D
Q
9
39
D
Q
10
41
D
Q
11
43
D
Q
12
47
D
Q
44
48
D
Q
13
49
D
Q
45
50
D
Q
14
51
D
Q
46
52
D
Q
15
53
D
Q
47
54
VSS
55
VSS
56
CLK0
61
CKE0
62
RAS
65
CAS
66
W
E
67
CKE1
68
CS0
69
CS1
71
CLK1
74
VSS
75
VSS
76
D
Q
48
84
D
Q
49
86
D
Q
50
88
D
Q
51
90
VSS
91
VSS
92
D
Q
52
94
D
Q
53
96
D
Q
54
98
D
Q
55
100
BA0
106
VSS
107
VSS
108
BA1
110
D
Q
M2
115
D
Q
M6
116
D
Q
M3
117
D
Q
M7
118
VSS
119
VSS
120
VSS
139
VSS
140
SDA
141
SCL
142
D
Q
32
4
D
Q
33
6
D
Q
34
8
D
Q
35
10
D
Q
36
14
D
Q
37
16
D
Q
38
18
D
Q
39
20
D
Q
40
38
D
Q
41
40
D
Q
42
42
D
Q
43
44
D
Q
16
83
D
Q
17
85
D
Q
18
87
D
Q
19
89
D
Q
20
93
D
Q
21
95
D
Q
22
97
D
Q
23
99
D
Q
24
121
D
Q
25
123
D
Q
26
125
D
Q
27
127
D
Q
28
131
D
Q
29
133
D
Q
30
135
D
Q
31
137
D
Q
56
122
D
Q
57
124
D
Q
58
126
D
Q
59
128
D
Q
60
132
D
Q
61
134
D
Q
62
136
D
Q
63
138
A6
103
A7
104
A8
105
A9
109
A10/AP
111
A11
112
A12
70
A13
72
DU
73
N
C
57
N
C
58
N
C
59
N
C
60
N
C
77
N
C
78
N
C
79
N
C
80
VDD
11
VDD
12
VDD
27
VDD
28
VDD
45
VDD
46
VDD
63
VDD
64
VDD
81
VDD
82
VDD
101
VDD
102
VDD
113
VDD
114
VDD
129
VDD
130
VDD
143
VDD
144
C208
10
uF
C209
10
uF
C210
10
uF
TP552
MEMD27
MEMD15
MEMD14
MEMD18
MEMD6
MEMD25
MEMD31
MEMD16
MEMD29
MEMD20
MEMD5
MEMD17
MEMD15
MEMD27
MEMD31
MEMD30
MEMD1
MEMD24
MEMD11
MEMD28
MEMD19
MEMD2
MEMD6
MEMD11
MEMD12
MEMD28
MEMD29
MEMD5
MEMD10
MEMD10
MEMD3
MEMD4
MEMD17
MEMD21
MEMD26
MEMD26
MEMD22
MEMD20
MEMD25
MEMD23
MEMD19
MEMD0
MEMD2
MEMD21
MEMD24
MEMD1
MEMD8
MEMD23
MEMD3
MEMD12
MEMD18
MEMD14
MEMD4
MEMD13
MEMD16
MEMD9
MEMD7
MEMD9
MEMD30
MEMD7
MEMD0
MEMD8
MEMD13
MEMD22
MEMD33
MEMD63
MEMD46
MEMD60
MEMD38
MEMD62
MEMD44
MEMD37
MEMD35
MEMD58
MEMD59
MEMD48
MEMD54
MEMD45
MEMD55
MEMD34
MEMD53
MEMD49
MEMD40
MEMD42
MEMD51
MEMD56
MEMD57
MEMD32
MEMD39
MEMD50
MEMD41
MEMD36
MEMD43
MEMD61
MEMD52
MEMD47
SDD
Q
M0
SDD
Q
M2
SDD
Q
M3
SDD
Q
M1
MEMA19
SDD
Q
M7
MEMA11
MEMA12
MEMA5
SDD
Q
M3
MEMA17
MEMA9
MEMA15
MEMA10
MEMA17
MEMA6
SDD
Q
M0
MEMA7
MEMA19
MEMA12
MEMA6
MEMA7
SDD
Q
M2
MEMA9
MEMA16
MEMA14
MEMA13
MEMA5
MEMA8
MEMA9
MEMA11
SDD
Q
M1
MEMA19
MEMA13
MEMA14
MEMA12
MEMA10
MEMA13
MEMA5
MEMA16
MEMA18
SDD
Q
M6
MEMA8
MEMA15
MEMA6
MEMA17
MEMA11
SDD
Q
M5
SDD
Q
M4
MEMA7
MEMA15
MEMA16
MEMA14
MEMA18
MEMA18
MEMA8
MEMA10
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
MEMA[19:0]
3
,6
,16
SDD
Q
M[7:0]
3
,15
SD
W
E
3
,15
SDRCS2
3
,15
SDCAS
3
,15
SDRAS
3
,15
SDCLK2
3
,16
SDCKE
3
,15
MEMD[63:0]
3
,6
,16
SDCLK1
3
,16
SDRCS0
3
,15
DIMM
_
SCK
2
,16
DIMM
_
SDA
2
,16
SDCLK0
3
,16
SDRCS1
3
,15
<
On
Board
:
256Mbit
x
2
><
SDRAM_SODIMM
Slot
[0
]>
MAI
N
P
W
B
(SDRAM)
5
5
4
4
3
3
21
21
D
D
C
C
B
B
A
A
5/16
AR-NB2A ELECTRICAL SECTION 7 - 6
IC8
TC74LCX244
F
T
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1
G
1
2
G
19
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
VCC
20
G
N
D
10
TP466
R210
33
C65
0.1
uF
C66
0.1
uF
C67
0.1
uF
BR62
33
1
2
3
45
6
7
8
BR63
10K
1
2
3
45
6
7
8
C69
0.1
uF
C70
0.1
uF
IC9
TC74LCX244
F
T
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1
G
1
2
G
19
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
VCC
20
G
N
D
10
IC10
TC74LCX373
F
T
D0
3
D1
4
D2
7
D3
8
D4
13
D5
14
D6
17
D7
18
OE
1
LE
11
Q
0
2
Q
1
5
Q
2
6
Q
3
9
Q
4
12
Q
5
15
Q
6
16
Q
7
19
VCC
20
G
N
D
10
C63
0.1
uF
TP555
BR43
33
1
2
3
4
5
6
7
8
TP470
BR65
10K
1
2
3
45
6
7
8
BR53
10K
1
2
3
45
6
7
8
BR55
10K
1
2
3
45
6
7
8
IC7
TC74LCX244
F
T
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1
G
1
2
G
19
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
VCC
20
G
N
D
10
BR50
33
1
2
3
45
6
7
8
BR52
33
1
2
3
45
6
7
8
BR57
10K
1
2
3
45
6
7
8
BR54
33
1
2
3
45
6
7
8
BR44
33
1
2
3
4
5
6
7
8
C
N
6
T4B-S
Q
TXD
1
RXD
2
5V
3
G
N
D
4
BR59
10K
1
2
3
45
6
7
8
R201
33
BR56
33
1
2
3
45
6
7
8
BR45
33
1
2
3
45
6
7
8
TP465
BR58
33
1
2
3
45
6
7
8
BR61
10K
1
2
3
45
6
7
8
TP447
BR47
33
1
2
3
45
6
7
8
R97
3
3
BR60
33
1
2
3
45
6
7
8
TP556
R99
3
3
TP557
TP401
BR46
33
1
2
3
45
6
7
8
TP558
BR51
10K
1
2
3
45
6
7
8
TP400
TP559
R98
3
3
TP471
TP560
IC12
TC74LCX245
F
T
A1
2
A2
3
A3
4
A4
5
DIR
1
OE
19
B1
18
B2
17
B3
16
B4
15
B5
14
B6
13
B7
12
B8
11
VCC
20
G
N
D
10
A8
9
A7
8
A6
7
A5
6
TP446
TP561
IC14
TC74LCX245
F
T
A1
2
A2
3
A3
4
A4
5
DIR
1
OE
19
B1
18
B2
17
B3
16
B4
15
B5
14
B6
13
B7
12
B8
11
VCC
20
G
N
D
10
A8
9
A7
8
A6
7
A5
6
IC13
TC74LCX245
F
T
A1
2
A2
3
A3
4
A4
5
DIR
1
OE
19
B1
18
B2
17
B3
16
B4
15
B5
14
B6
13
B7
12
B8
11
VCC
20
G
N
D
10
A8
9
A7
8
A6
7
A5
6
R100
33
IC29C
TC74LCX14
F
T
5
6
IC29D
TC74LCX14
F
T
9
8
IC29B
TC74LCX14
F
T
3
4
IC29A
TC74LCX14
F
T
1
2
R202
33
C64
0.1
uF
R246
10K
BR64
33
1
2
3
45
6
7
8
C68
0.1
uF
IC1
1
TC74LCX245
F
T
A1
2
A2
3
A3
4
A4
5
DIR
1
OE
19
B1
18
B2
17
B3
16
B4
15
B5
14
B6
13
B7
12
B8
11
VCC
20
G
N
D
10
A8
9
A7
8
A6
7
A5
6
MEMD14
MEMD23
MEMD6
MEMD17
MEMD1
1
MEMD9
MEMD16
MEMD25
MEMD0
MEMD26
MEMD30
MEMD3
MEMD5
MEMD1
MEMD12
MEMD18
MEMD8
MEMD20
MEMD22
MEMD24
MEMD10
MEMD7
MEMD13
MEMD15
MEMD29
MEMD4
MEMD28
MEMD19
MEMD31
MEMD2
MEMD21
MEMD27
MEMA0
MEMA1
MEMA2
MEMA3
MEMA4
MEMA5
MEMA6
MEMA7
MEMA8
MEMA9
MEMA10
MEMA1
1
MEMA12
MEMA13
MEMA14
MEMA15
MEMA16
MEMA17
MEMA18
MEMA19
LAB20
LAB20
LA7
LA9
LA14
LA4
LA3
LA8
LA0
LA10
LA12
LA16
LA13
LA19
LA2
LA18
LA6
LA17
LA5
LA20
LA1
LA15
LA1
1
LAA5
LAA9
LAA9
LAA7
LAA5
LAA19
LAA3
LAA16
LAA8
LAA14
LAA1
LAA17
LAA10
LAA14
LAA0
LAA8
LAA15
LAA12
LAA13
LAA1
LAA1
1
LAA4
LAA6
LAA3
LAA2
LAA13
LAA18
LAA1
1
LAA4
LAA19
LAA7
LAA12
LAA12
LAA17
LAA6
LAA18
LAA0
LAA2
LAA16
LAA10
LAA15
LAA[19:0]
LDD7
LDD2
LDD1
1
LDD22
LDD24
LDD21
LDD29
LDD5
LDD12
LDD31
LDD16
LDD26
LDD27
LDD[31:0]
LDD6
LDD18
LDD20
LDD1
LDD4
LDD17
LDD8
LDD23
LDD28
LDD10
LDD25
LDD14
LDD30
LDD9
LDD3
LDD13
LDD19
LDD15
LDD0
LDD31
LDD30
LDD28
LDD29
LDD27
LDD25
LDD26
LDD24
LDD22
LDD20
LDD23
LDD21
LDD19
LDD17
LDD18
LDD16
LDD15
LDD13
LDD14
LDD12
LDD1
1
LDD9
LDD10
LDD8
LDD7
LDD5
LDD6
LDD4
LDD3
LDD1
LDD2
LDD0
LD4
LD21
LD28
LD6
LD10
LD1
1
LD30
LD0
LD7
LD13
LD17
LD31
LD22
LD26
LD27
LD14
LD2
LD9
LD16
LD18
LD5
LD20
LD24
LD19
LD25
LD15
LD29
LD1
LD3
LD8
LD12
LD23
LD31
LD29
LD30
LD28
LD27
LD25
LD26
LD24
LD23
LD21
LD22
LD20
LD19
LD17
LD18
LD16
LD15
LD13
LD14
LD12
LD1
1
LD9
LD10
LD8
LD7
LD5
LD6
LD4
LD3
LD1
LD2
LD0
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCC
VCC
VCCIO
MEMA[19:0]
3
,5
,16
MEMD[31:0]
3
,5
,16
MEMDIR
3
,15
ALE
3
,15
ROMOE
3
,15
F
OE
7
,15
ROM
W
E
3
,15
FW
E7
,15
F
O
N
T
_
OE
7
,15
F
O
N
T
_W
E7
,15
RXD1
2
,16
TXD1
2
,16
LAB20
16
LA[20:0]
7
LD[31:0]
7
LDD[31:0]
16
LAA[19:0]
16
<
RS232C
CO
NN
ECT
O
R
>
<
TMPR4927TB
SIO
_
C
h
1
>
MAI
N
P
W
B
(ADDRESS_BUFFER/DA
T
A
_BUFFER)
5
5
4
4
3
3
21
21
D
D
C
C
B
B
A
A
6/16
AR-NB2A ELECTRICAL SECTION 7 - 7
R282
0
N
OASM
R220
10
k
C
N
4
DMM2-SD72A-1
131
A0
12
A1
13
A2
14
A3
15
A4
16
A5
17
A6
18
A7
28
A8
31
A9
32
1CE
40
N
C
41
2CE
42
N
C
43
OE
44
W
P
46
W
E
47
N
C
11
RP
19
D0
2
D1
3
D2
4
D3
5
D4
6
D5
7
D6
8
D7
9
D8
21
D9
22
D10
23
D1
1
24
D12
25
D13
26
D14
27
D15
35
D16
37
D17
38
D18
49
D19
50
D20
51
D21
52
D22
53
D23
54
D24
56
D25
57
D26
58
D27
60
D28
59
D29
62
D30
63
D31
64
RY
/B
Y
45
BYTE
48
VCC
W
55
VCC
10
N
C
30
VCC
61
GN
D
1
GN
D
20
GN
D
39
A10
29
A1
1
33
A12
34
A13
36
A14
65
A15
66
A16
67
A17
68
A18
69
A19
70
A20
71
N
C
72
C
N
5
DMM-100
G
-432
FN
K31
D0
28
D1
78
D2
29
D3
79
D4
30
D5
80
D6
31
D7
81
D8
32
D9
82
D10
33
D1
1
83
D12
34
D13
84
D14
35
D15
85
D16
36
D17
86
D18
37
D19
87
D20
38
D21
88
D22
39
D23
89
D24
40
D25
90
D26
41
D27
91
D28
42
D29
92
D30
43
D31
93
N
C
18
N
C
68
V
pp
19
V
pp
69
V
pp
20
V
pp
70
N
C
21
N
C
71
OE
_
22
W
E
_
23
RP
72
BYTE
_
73
N
C
26
W
P
_
24
R
Y
/BY
_
25
V
pp
4
V
pp
54
Vcc
5
Vcc
6
Vcc
45
Vcc
46
Vcc
55
Vcc
56
Vcc
95
Vcc
96
GN
D
1
GN
D
2
GN
D
49
GN
D
50
GN
D
51
GN
D
52
GN
D
99
GN
D
100
A0
7
A1
57
A2
8
A3
58
A4
9
A5
59
A6
10
A7
60
A8
11
A9
61
A10
12
A1
1
62
A12
13
A13
63
A14
14
A15
64
A16
15
A17
65
A18
16
A19
66
A20
17
N
C
97
N
C
53
GN
D
98
A21
67
CE0
_
74
CE1
_
75
CE2
_
76
CE3
_
77
N
C
3
N
C
27
N
C
47
GN
D
48
N
C
44
N
C
94
C220
0.1
uF
C79
10
uF
C71
0.1
uF
C235
0.47
uF
C74
0.1
uF
C73
0.1
uF
C
N
3
DMM2-SD72A-1
131
A0
12
A1
13
A2
14
A3
15
A4
16
A5
17
A6
18
A7
28
A8
31
A9
32
1CE
40
N
C
41
2CE
42
N
C
43
OE
44
W
P
46
W
E
47
N
C
11
RP
19
D0
2
D1
3
D2
4
D3
5
D4
6
D5
7
D6
8
D7
9
D8
21
D9
22
D10
23
D1
1
24
D12
25
D13
26
D14
27
D15
35
D16
37
D17
38
D18
49
D19
50
D20
51
D21
52
D22
53
D23
54
D24
56
D25
57
D26
58
D27
60
D28
59
D29
62
D30
63
D31
64
RY
/B
Y
45
BYTE
48
VCC
W
55
VCC
10
N
C
30
VCC
61
GN
D
1
GN
D
20
GN
D
39
A10
29
A1
1
33
A12
34
A13
36
A14
65
A15
66
A16
67
A17
68
A18
69
A19
70
A20
71
N
C
72
C78
0.1
uF
C76
0.1
uF
R280
0
N
OASM
C75
22
uF/16V
+
C77
0.1
uF
R106
10K
R105
10K
N
OASM
R109
10
k
TP705
R219
33
C222
0.1
uF
R107
0
TP690
R281
0
IC34
TC7SB66
F
U
N
OASM
2
1
5
4
3
R279
0
C72
0.1
uF
C221
0.47
uF
LA8
LA0
LA18
LA4
LA10
LA1
1
LA9
LA6
LA20
LA14
LA20
LA1
1
LA4
LA8
LA14
LA7
LA16
LA17
LA1
LA16
LA7
LA15
LA20
LA1
LA1
LA3
LA13
LA18
LA13
LA1
1
LA9
LA5
LA12
LA5
LA9
LA17
LA2
LA8
LA2
LA4
LA12
LA0
LA15
LA6
LA2
LA10
LA18
LA13
LA6
LA19
LA17
LA16
LA7
LA15
LA3
LA10
LA0
LA19
LA5
LA14
LA19
LA3
LA12
VCC
W
A
LD19
LD17
LD20
LD21
LD23
LD18
LD16
LD22
LD31
LD26
LD24
LD25
LD30
LD28
LD27
LD29
LD14
LD8
LD1
1
LD13
LD9
LD10
LD15
LD12
LD2
LD0
LD5
LD3
LD1
LD7
LD6
LD4
LD21
LD17
LD19
LD23
LD22
LD18
LD20
LD16
LD24
LD26
LD27
LD31
LD29
LD30
LD25
LD28
LD14
LD15
LD13
LD8
LD9
LD10
LD12
LD1
1
LD1
LD7
LD6
LD3
LD5
LD4
LD0
LD2
LD21
LD17
LD19
LD23
LD22
LD18
LD20
LD16
LD24
LD26
LD27
LD31
LD29
LD30
LD25
LD28
LD14
LD15
LD13
LD8
LD9
LD10
LD12
LD1
1
LD1
LD7
LD6
LD3
LD5
LD4
LD0
LD2
FW
P
LA20
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
F
OE
6
,15
FW
E
6
,15
LD[31:0]
6
F
O
N
T
_
OE
6
,15
PO
N
RST
2
,9
,10
,11
,13
,15
ROMCS2
3
,15
LA[20:0]
6
ROMCS3
3
,15
F
O
N
T
_W
E
6
,15
ROMCS1
3
,15
ROMCS0
3
,15
ROMCS4
3
,15
ROMCS5
3
ROMCS6
3
VCC
W
CTL
2
,16
<
FLASH_DIMM
S
lot
[0
]>
<
FLASH_DIMM
S
lot
[1
]>
<
FLASH_DIMM
S
lot
[2
]>
<F
LASH
_W
PC
o
n
tr
o
l>
RS55:
ASM
RS56:
N
OA
S
M
MAI
N
P
W
B
(FLASH)
5
5
4
4
3
3
21
21
D
D
C
C
B
B
A
A
7/16
AR-NB2A ELECTRICAL SECTION 7 - 8
IC35A
S
N
74AHCT125P
W
R
23
1
E
N
1
R226
10K
TP424
R227
10K
C223
0.1
uF
TP666
TP419
C224
0.1
uF
R221
10K
R228
10K
C244
10
pF
R229
10K
IC35B
S
N
74AHCT125P
W
R
56
4
E
N
1
C88
0.1
uF
TP421
R122
3.3K
TP663
TP563
R283
0
IC32C
S
N
74L
V
C125AP
W
98
10
E
N
1
BT1
HL32-V1
IC18
N
J
U6356EM
I/O-
1
D
ATA
7
CLK
6
CE
5
XT
2
XT
-
3
VDD
8
VSS
4
C86
0.1
uF
D1
RB751V
-40
T
E-17
TP423
R305
10K
Q
2
2SC41
16
C
B
E
Q
1
2SA1586
C
B
E
TP550
Y1
DT
-38
32.768KHz
IC32D
S
N
74L
V
C125AP
W
12
1
1
13
E
N
1
R123
10K
C87
10
uF
IC32B
S
N
74L
V
C125AP
W
56
4
E
N
1
R124
10K
IC32A
S
N
74L
VC125AP
W
2
3
1
E
N
1
R306
10K
TP664
R125
2.2K
R307
10K
R121
10
R308
10K
IC25
F
TC74LCX14
F
T
13
12
C243
10
pF
C85
0
.1
uF
TP420
IC17
CA
T24
F
C256XI
SDA
5
A2
3
SCL
6
A0
1
VCC
8
GN
D
4
A1
2
W
P
7
TP665
TP551
TP562
IC35C
S
N
74AHCT125P
W
R
98
10
E
N
1
IC35D
S
N
74AHCT125P
W
R
12
1
1
13
E
N
1
TP422
VCCIO
VCC
VCCIO
VCCIO
VCC
VCC
EEP
_
SDA
2
,16
EEP
_
SCK
2
,16
R
TCDA
T
A
2
,16
R
TCR/
W
2
,16
R
TCCS
2
,16
R
TCCLK
2
,16
R
TCBUSOE
_
13
<
Serial
EEPROM
>
<
RTC
>
BATTER
Y
ON
<->
OFF
N
OA
S
M
MAI
N
P
W
B
(Serial_EEPROM/RTC)
5
5
4
4
3
3
21
21
D
D
C
C
B
B
A
A
8/16
Click on the first or last page to see other AR-NB2A (serv.man2) service manuals if exist.