Samsung SGH-E720 Service Manual page 15

SGH-E720 Flow Chart of Troubleshooting
VCCD
LCD_AD(00)
LCD_AD(02)
LCD_AD(04)
11
LCD_AD(06)
13
LCD_AD(08)
15
LCD_AD(10)
17
LCD_AD(12)
19
LCD_AD(14)
21
LCD_WEN
23
MLCD_CS
25
FLASH_EN1
27
CAM_DA(0)
29
CAM_DA(1)
31
CAM_DA(2)
33
CAM_DA(3)
35
CAM_DA(4)
37
CAM_DA(5)
39
CAM_DA(6)
41
CAM_DA(7)
43
1.8V_VCAM
45
VBAT
47
49
MOT
51
DIM_EN
53
KEY_ROW(5)
55
BRIGHTNESS
57
KEY_COL(1)
59
C519
C517
F501
1
IN1 OUT1
LCD_AD_(06)
2 IN2
OUT2
LCD_AD_(04)
3
OUT3 7
IN3
LCD_AD_(02)
4
IN4 OUT4
LCD_AD_(00)
GND GND
10 5
F503
1 IN1
OUT1
LCD_AD_(14)
2
IN2 OUT2
LCD_AD_(12)
3 IN3
OUT3
LCD_AD_(10)
4 IN4
OUT4 6
LCD_AD_(08)
GND GND
10 5
F505
9 OUT1
CAM_D(4)
IN1
IN2 2
8 OUT2
CAM_D(5)
7 OUT3
IN3
CAM_D(6)
6
OUT4 IN4
CAM_D(7)
GND GND
5 10
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CN507
1 2
1 2
3 4
3 4
5 6
5 6
78
7 8
9 10
9 10
12
11 12
14
13 14
16
15 16
18
17 18
20
19 20
22
21 22
24
23 24
26
25 26
28
27 28
30
29 30
32
31 32
34
33 34
36
36
35
38
37 38
40
39 40
42
41 42
44
43 44
46
45 46
48
47 48
50
49 50
52
51 52
54
53 54
56
55 56
58
57 58
60
59 60
C522
C516
9
LCD_AD(06)
8
LCD_AD(04)
LCD_AD(02)
6
LCD_AD(00)
9
LCD_AD(14)
8
LCD_AD(12)
7
LCD_AD(10)
LCD_AD(08)
1
CAM_DA(4)
CAM_DA(5)
3
CAM_DA(6)
4
CAM_DA(7)
SAMSUNG Proprietary-Contents may change without notice
KEY_BL2
LCD_AD(01)
LCD_AD(03) KEY_BL1
LCD_AD(05)
LCD_AD(07)
LCD_AD(09)
LCD_AD(11)
LCD_AD(13)
LCD_AD(15)
L_ADS
SUB_L_CS
FLASH_RESET
SCL
SDA
M_CLK
P_CLK
VER_REF
HOR_REF
SPK1P
SPK1N
MP3_MIC
MP3_GND
OLED_BACK_EN
2.5V_VCAM
KEY_COL(0)
LCD_RD
CAM_RST
KEY_COL(2)
LCD_AD(01)
LCD_AD(03)
LCD_AD(05)
LCD_AD(07)
LCD_AD(09)
LCD_AD(11)
LCD_AD(13)
LCD_AD(15)
CAM_D(0)
CAM_D(1)
CAM_D(2)
CAM_D(3)
2-12
AOT-0603P-W03-X LED316
R356
LED317
R357 AOT-0603P-W03-X
304 LED301
AOT-0603P-W03-X
R305 LED302
AOT-0603P-W03-X
306 LED303
AOT-0603P-W03-X
R307
AOT-0603P-W03-X LED304
358
AOT-0603P-W03-X
LED318
R308
AOT-0603P-W03-X LED308
R309
AOT-0603P-W03-X LED309
310
AOT-0603P-W03-X LED310
311
AOT-0603P-W03-X LED311
R312
AOT-0603P-W03-X
LED312
R313
AOT-0603P-W03-X LED313
R314
LED314
AOT-0603P-W03-X
R316
LED315
AOT-0603P-W03-X
F500
1
9 OUT1
IN1
LCD_AD_(01)
IN2 2
8 OUT2
LCD_AD_(03)
IN3 3
7 OUT3
LCD_AD_(05)
IN4 4
6
OUT4
LCD_AD_(07)
GND GND
5 10
F502
IN1 1
9
OUT1
LCD_AD_(09)
2
8 OUT2
IN2
LCD_AD_(11)
IN3 3
7
OUT3
LCD_AD_(13)
4
6 OUT4
IN4 LCD_AD_(15)
GND GND
51 0
F504
1
9 OUT1
IN1
CAM_DA(0)
2
8 OUT2
IN2
CAM_DA(1)
3
7 OUT3
IN3
CAM_DA(2)
4
6
OUT4 IN4
CAM_DA(3)
GNDG ND
5 10
VBAT