User Guide

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SGH-E720 Flow Chart of Troubleshooting
2-12
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KEY_BL1
KEY_BL2
VBAT
AOT-0603P-W03-X LED304
AOT-0603P-W03-X LED308
LED309
CAM_DA(5)
LCD_AD_(08)
AOT-0603P-W03-X
C519
AOT-0603P-W03-X LED310
LED311
LCD_AD_(10)
SPK1N
SPK1P
KEY_COL(0)
MP3_GND
LCD_AD(05)
LCD_AD(03)
KEY_COL(2)KEY_COL(1)
CAM_RST
LCD_RD
AOT-0603P-W03-X
LED312
AOT-0603P-W03-X
LED313AOT-0603P-W03-X
R307
9
8
OUT2
OUT3
7
6
OUT4
R308
OUT4
6
R309
310
311
R312
R313
AOT-0603P-W03-X
LED314
C522
R314
AOT-0603P-W03-X
LED315
R316
F501
AOT-0603P-W03-X
LED303
LED302
AOT-0603P-W03-X
AOT-0603P-W03-X
LED301
306
R305
LCD_AD_(03)
LCD_AD_(01)
LCD_AD_(05)
LCD_AD_(07)
LCD_AD_(09)
CAM_DA(4)
CAM_DA(6)
CAM_DA(7)
CAM_DA(3)
CAM_DA(2)
CAM_DA(1)
CAM_DA(0)
LCD_AD(04)
LCD_AD(02)
LCD_AD(00) LCD_AD(07)
LCD_AD(05)
LCD_AD(03)
LCD_AD(01)
LCD_AD(14)
LCD_AD(12)
LCD_AD(10)
LCD_AD(08) LCD_AD(15)
LCD_AD(13)
LCD_AD(11)
LCD_AD(09)
LCD_AD_(00)
LCD_AD_(02)
LCD_AD_(06)
LCD_AD_(04)
LCD_AD(06)
304
GND
F505
5
LCD_AD_(13)
LCD_AD_(11)LCD_AD_(12)
CAM_D(0)
CAM_D(1)
CAM_D(2)
CAM_D(3)
CAM_D(4)
CAM_D(5)
CAM_D(6)
CAM_D(7)
LCD_AD_(15)
LCD_AD_(14)
LED317
AOT-0603P-W03-X
58
58
59
59
6
6
60
60
7
78
8
9
9
F503
510
GNDGND
AOT-0603P-W03-X LED316
C517
R356
R357
LED318
AOT-0603P-W03-X
3
IN3
4
IN4
9
OUT1
8
OUT2
7
OUT3
OUT4
6
358
GND
105
GND
F500
IN4
OUT1
9
8
OUT2
OUT3
7
6
OUT4
F502
GND
51 0
GND
IN1
1
2
IN2
IN3
3
4
F504
5
GNDG ND
10
1
IN1
2
IN2
GND
510
GND
IN1
1
2
IN2
IN3
3
IN4
4
OUT1
C516
1
IN1
IN2
2
3
IN3
4
IN4
9
OUT1
8
OUT2
7
OUT3
OUT4
6
50
51
51 52
52
53
53 54
54
55
55 56
56
57
57
43 44
44
45
45 46
46
47
47 48
48
49
49
5
5
50
36
36
37
37 38
38
39
39
4
4
40
40
41
41 42
42
43
29
3
3
30
30
31
31 32
32
33
33 34
34
35
35
21
22
22
23
23 24
24
25
25 26
26
27
27 28
28
29
14
15
15 16
16
17
17 18
18
19
19
2
2
20
20
21
CN507
1
1
10
10
11
11 12
12
13
13 14
1
IN1
IN2
2
IN3
3
IN4
4
9
OUT1
OUT2
8
7
OUT3
OUT4
6
GND
10
1
IN1
IN2
2
3
IN3
4
IN4
9
OUT1
8
OUT2
7
OUT3
FLASH_EN1
MLCD_CS
LCD_WEN
LCD_AD(14)
LCD_AD(12)
LCD_AD(10)
LCD_AD(08)
VCCD
MP3_MIC1.8V_VCAM
VBAT
2.5V_VCAM
OLED_BACK_EN
LCD_AD(06)
LCD_AD(04)
BRIGHTNESS
KEY_ROW(5)
LCD_AD(02)
DIM_EN
MOT
CAM_DA(7)
CAM_DA(6)
CAM_DA(5)
CAM_DA(4)
CAM_DA(3)
LCD_AD(00)
CAM_DA(2)
CAM_DA(1)
CAM_DA(0)
LCD_AD(01)
HOR_REF
VER_REF
P_CLK
M_CLK
SDA
SCL
FLASH_RESET
SUB_L_CS
L_ADS
LCD_AD(15)
LCD_AD(13)
LCD_AD(11)
LCD_AD(09)
LCD_AD(07)