Read Sharp AR-NB2 (serv.man10) Service Manual online
AR-NB2
CIRCUIT DIAGRAM
7 – 8
<Serial EEPROM>
<RTC>
BATTERY
ON <->
OFF
2
3
1
5
6
4
9
8
10
I/O-
1
DATA
7
CLK
6
CE
5
XT
2
XT-
3
VDD
8
VSS
4
C
B
E
C
B
E
12
11
13
5
6
4
2
3
1
13
12
SDA
5
A2
3
SCL
6
A0
1
VCC
8
GND
4
A1
2
WP
7
9
8
10
12
11
13
IC35A
MM74HC125MTC
EN
1
R226
1K
TP424
R227
1K
C223
0.1uF
TP419
TP666
R221
10K
C224
0.1uF
R228
1K
C244
10pF
R229
1K
C88
0.1uF
IC35B
MM74HC125MTC
EN
1
R122
3.3K
TP421
TP663
TP563
R283
0
IC32C
74LCX125MTC
EN
1
BT1
HL32-V1
IC18
NJU6356EM
C86
0.1uF
D1
RB751V-40 TE-17
TP423
Q2
2SC4116
Q1
2SA1586
Y1
DT-38
32.768KHz
TP550
IC32D
74LCX125MTC
EN
1
R123
10K
IC32B
74LCX125MTC
EN
1
C87
10uF
R124
10K
IC32A
74LCX125MTC
EN
1
R125
2.2K
TP664
R121
10
IC25F
TC74LCX14FT
C243
10pF
C85
0.1uF
TP420
IC17
CAT24C256KI-TE13
TP665
TP551
TP562
IC35C
MM74HC125MTC
EN
1
IC35D
MM74HC125MTC
EN
1
TP422
VCCIO
VCC
VCCIO
VCCIO
VCC
VCC
VCC
VCC
VCC
EEP_SDA
2,16
EEP_SCK
2,16
RTCDATA
2,16
RTCR/W
2,16
RTCCS
2,16
RTCCLK
2,16
A
B
C
D
8765
4
3
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
8765
4
3
1
1
2
2
3
4
5
6
7
8
D
C
B
A
8/16
Serial_EEPROM/RTC
Click on the first or last page to see other AR-NB2 (serv.man10) service manuals if exist.