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Flow Chart of Troubleshooting
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7-13
C306
R301
+VDD_IO_LOW
C303
C308
C307
C315
C304
+VDD_IO_HIGH
C311
C305
9
VREF
8
VSS
/C
S
29
3
/IRQ
/R
D
3
1
/RST
4
2
8
/W
R
5
NC
PLLC
6
17
SPOUT1
SPOUT2
18
15
S
P
V
D
D
16
S
P
V
S
S
7
VDD
G
3
3
3
4
G
G
3
5
3
6
G
H
P
O
U
T
-L
/M
O
N
O
10
11
H
P
O
U
T
-R
IO
V
D
D
32
LED
2
19
MTR
24
23
D4
D5
22
21
D6
D7
20
E
Q
1
12
13
E
Q
2
E
Q
3
14
U302
30
A
0
1
CLKI
D
0
27
26
D
1
25
D2
D3
HD(1)
HD(0)
26M_DIGIT
HA(1)
VIB
M_LED
HD(7)
HD(6)
HD(5)
HD(4)
HD(3)
HD(2)
WEn
RSTON
OEn
M_INT
CS5n_MELODY
ANL
ANR
C
7
2
0
C
7
1
8
C
7
2
4
+VDD_IO_HIGH
C
7
2
8
C
7
0
8
C
7
2
2
C
7
0
9
VBAT
C
7
2
1
C
7
2
9
C
7
0
5
C
7
0
6
C
7
0
7
C713
C
7
1
0
C
7
1
1
C
7
1
9
C
7
2
6
C
7
2
7
C
7
2
5
C712
8
8
9
9
39
39
4
4
40
40
41
41
42
42
5
56
6
7
7
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
23
23
24
24
25
25
26
26
27
27
28
28
29
29
3
3
30
30
16
16
17 17
18
18
19 19
2
2
20
20
21
21
22
22
1
1
10
10
11 11
12
12
13 13
14
14
15 15
CN700
C
7
0
4
C
7
2
3
LCD_BL_ON
L_WR
LD(3)
LD(4)
LD(5)
LD(6)
LD(7)
LD(8)
LD(9)
LD(10)
LD(11)
LD(12)
LD(13)
LD(14)
LD(15)
HFR_P
VIB
LD(0)
LD(1)
LED_RED
LED_GREEN
LED_BLUE
AMP_EN
MELODY_SEL
LD(2)
RS
LCD_MAIN_CS
HFR_N
LCD_SUB_CS
KEY_COL(0)
OLED_EN
KEY_ROW(4)
