Samsung SGH-E360 - Page 39

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Flow Chart of Troubleshooting
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7-13
MELODY IC
+VDD_IO_HIGH
C305
C308 C306
C310
C312
R305
+VDD_IO_LOW
VREF
8
VSS
/
C
S
29
3
/IRQ
/
R
D
3
1
/RST
4
2
8
/
W
R
MTR
5
NC
PLLC
6
17
SPOUT1
SPOUT2
18
15
S
P
V
D
D
S
P
V
S
S
16
7
VDD
9
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
I
O
V
D
D
32
LED
2
19
23
D4
D5
22
21
D6
D7
20
E
Q
1
12 13
E
Q
2
E
Q
3
14
G
3
3
U300
30
A
0
1
CLKI
D
0
27 26
D
1
25
D2
D3
24
R307
TP302
C313
C307
TP301
C309
R306 C311
R308
VIB
AMP_N
AMP_P
EARP_HF
VBAT
HPL
HPR
HD(1)
HD(0)
WEn
CS5n_MELODY
HA(1)
OEn
HD(2)
26M_DIGIT
HD(3)
HD(4)
M_INT
HD(5)
RSTON
HD(6)
HD(7)
Typical 3.7V
3
NO2
N
O
3
7
1
1
NO4
1
4
V
+
IN1/IN2 IN3/IN4
1
0
1
NC1
5
N
C
2
NC3
9
1
3
N
C
4
NC
2
2
2
1
NC
1
5
N
O
1
C
O
M
1
1
6
4
COM2
C
O
M
3
8
COM4
1
2
6
G
N
D
G
N
D
1
7
2
U604
VBAT
SPK_N
AMP_N
MELODY_SEL
HFR_P
A
F
R
A
N
L
ANR
R_CONTROL
H
F
R
_
N
AFL
H
P
L
HPR
S
P
K
_
P
A
M
P
_
P
C722
C702
C711
C719 C720
+VDD_IO_HIGH
C704
C718
+VDD_IMAGE
C714C710
C703
C723
C705
C721 C715C712
C706
C717 C713
VBAT
C716
66
6
0
6
0
7788
99
52
52
535354 54
55 5556 56
5
7
5
7
5
8
5
8
5
9
5
9
45454646
4747
48
48
4949
5
5
5050
51 51
38 38
39 39
44
40
40
41414242
4343
44
44
30 30
31 3132
32
33 3334 34
35 3536
36
37 37
23 2324
24
252526 26
27 2728
28
29 29
33
16 16
17 1718
18
19 19
22
20 20
21 2122 22
SOC701
1
1
10
10
11 1112 12
13 1314
14
15 15
Y(0)
HSYNC
PCLK
M_CLK
KEY_COL(2)
Y(5)
Y(7)
Y(6)
Y(4)
Y(3)
Y(2)
Y(1)
KEY_ROW(2)_K
KEY_COL(4)
SPK_N
KEY_COL(3)
SPK_P
M_SDA
M_SCL
VSYNC