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5 V
D 4 0 1
1 N 4 1 4 8
D 4 0 3
D D C _ VD D
1 N 4 1 4 8
R 4 0 9
1 M
X4 0 1
1 2 MH z
C 4 0 4
2 2 p
D G N D
R 4 2 2
1 k
IR _ IN
ZD 4 0 1
5 .6 V
C N 1 0 7
1
2
3
4
5 V
5
6
7
8
9
1 0
1 1
1 2
C 4 1 3
6 x 2 PIN /2 .0 mm
1 n
C 4 1 5
ZD 4 0 5
C 4 1 6
ZD 4 0 6
1 n
5 .6 V
1 n
5 .6 V
D G N D
D G N D
KEYPAD
D G N D
CONNECTOR
BL _ EN
BL _ BR IG H T
D 4 0 2
MC U _ VD D
1 N 4 1 4 8
C 4 0 1
1 u
+
C 4 0 3
D G N D
C 4 0 2
0 .1 u
1 0 0 u /1 6 V
H SO
R 4 0 8
D G N D
R 4 1 0
1 0 0
IIC SC L
R 4 1 1
1 0 0
IIC SD A
AD 1
AD 0
C 4 0 5
SEL 1
2 2 p
SEL 2
R 4 1 4
R 4 1 5
2 k
2 k
R 4 1 6
R 4 1 7
4 .7 k
4 .7 k
C 4 0 6
1 0 0 p
MC U _ VD D
5 V
5 V
R 4 2 3
4 .7 k
VO L U ME
R 4 2 4
C 4 0 8
6 .8 k
1 0 0 p
D G N D
MC U _ VD D
R 4 2 8
R 4 2 9
7 .5 k
7 .5 k
AD 0
R 4 3 1
1 k
R 4 3 2
1 k
AD 1
C 4 1 1
C 4 1 2
1 n
1 n
ZD 4 0 2
5 .6 V
D G N D
PW R
R 4 3 7
1 k
R 4 3 8
1 0 0
PW R _ L ED A
R 4 3 9
1 0 0
PW R _ L ED G
R 4 4 0
1 0 0
IR _ IN
C 4 1 4
1 n
ZD 4 0 3
ZD 4 0 4
5 .6 V
5 .6 V
D G N D
5 V
R 4 0 1
R 4 0 2
1 k
4 .7 k
R 4 0 6
1 K
U 4 0 2
1
PC 2 /SO G I
VSYN C I
2
PC 1 *
H SYN C I
1 0 0
3
PC 0 *
PC 3 /PW M0
4
R STB
PC 4 /PW M1
5
VC C
PC 5 //PATTO
6
PD 6
PE1
7
G N D
PE0
8
O SC O
PC 6
9
O SC I
PC 7
R XD
1 0
P3 0 /R XD
PD 0
TXD
1 1
P3 1 /TXD
PD 1 /H SYN C O
1 2
P3 4 /T0
PD 2 /VSYN C O
1 3
P3 5 /T1
PD 3 /H AL FO
1 4
PB3 /AD C 3 /IN TE1
PD 4 /H AL FI
1 5
PB2 /AD C 2 /IN TE0
PD 5 /C L MPO
1 6
PB1 /AD C 1
PA0 /PW M2
1 7
PB0 /AD C 0
PB4 /ISC L 0 *
1 8
PA7 /PW M9 *
PB5 /ISD A0 *
1 9
PA6 /PW M8 *
PB6 /D SC L 1 *
2 0
PA5 /PW M7 *
PB7 /D SD A1 *
2 1
PA4 /PW M6 *
PA1 /PW M3
2 2
PA3 /PW M5
PA2 /PW M4
C 4 0 7
1 0 0 p
N T6 8 F6 3 2 A
D G N D
R 4 2 5
R 4 2 6
5 V
1 5 k
4 .7 k
C 4 0 9
1 u
D G N D
MC U _ VD D
C 4 1 0
0 .2 2 u
U 4 0 5
AT2 4 C 1 6
D G N D
1
8
A0
VC C
2
7
A1
W P
3
6
R 4 3 5
A2
SC L K
4
5
R 4 3 6
G N D SD A
D G N D
56
5 V
R 4 0 3
R 4 0 4
4 7 k
4 7 k
Q 4 0 1
R 4 0 5
MMBT3 9 0 4
1 0 0 k
1
R 4 0 7
1 0 0 k
Q 4 0 2
MMBT3 9 0 4
1
R 4 4 1
1 0 k N C
R 4 4 2
1 0 k N C
4 4
MC U _ VS
4 3
D G N D
MC U _ H S
4 2
4 1
R STN
4 0
3 9
3 8
1 2 M_ O SC
3 7
VD _ PW R _ EN
3 6
W P
3 5
3 4
PW R 2 _ EN
3 3
TU N ER _ C TR L
3 2
TU N ER _ D ET
3 1
PW R
3 0
VG A_ D ET
2 9
VD _ R ST
2 8
R 4 1 2
2 7
1 0 0
2 6
D D C _ SC L
2 5
D D C _ SD A
2 4
PW R _ L ED A
2 3
PW R _ L ED G
R 4 1 3
1 0 0
R 4 1 8
2 k
R 4 2 0
R 4 2 1
2 k
2 k
MC U _ VD D
M_ TXD
M_ R XD
5 V
C N 1 0 5
1
R 4 3 3
1 0 0
2
3
R 4 3 4
1 0 0
4
4 PIN /2 .0 mm
W P
D G N D
TO RS232
1 0 0
SC L
1 0 0
SD A
C N 1 0 6
SC L
1
SD A
2
3
3 PIN /2 .0 mm
D G N D
TO DEBUG
Title
MFM
Siz e
D o c u me n t N u mb e r
A3
MCU
D a te :
Mo n d a y , Se p te mb e r 1 2 , 2 0 0 5
AOC A20S431
MU TE
STAN D BY
SC L
SD A
R 4 1 9
2 k
MC U _ VD D
R 4 2 7
N C
D D C _ SD A
N C
R 4 3 0
D D C _ SC L
TXD
R XD
R e v
0 .2
Sh e e t
4
o f
8
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