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Flow Chart of Troubleshooting and Circuit Diagrams
3-28
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DM_2.9V
R813
C823
R817
R818
5
4
5
4
6
4
6
4
5 5
6
6
7
7
8
8
9 9
39
39
4
4
40
40
41
41
42
42
43 43
44 44
31
31
32
32
33 33
34 34
35
35
36
36
37 37
38 38
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
23
23
SCN800
1 1
10 10
11
11
12
12
13 13
14 14
15
15
KEY_3.3V
V_2.6P
VBAT
R820
R819
RESET_OUT
LCD_FLM
LED2
LED+
ELCD_RS
SCAN_0
SCAN_1
SCAN_2
KEY_0
KEY_1
KEY_2
KEY_3
ELCD_CS
ELCD_WE
LED1
LED3
ELCD_D(0)
ELCD_D(2)
ELCD_D(4)
ELCD_D(6)
ELCD_D(8)
ELCD_D(10)
ELCD_D(12)
ELCD_D(14)
ELCD_RE
ELCD_D(3)
ELCD_D(5)
ELCD_D(7)
ELCD_D(9)
ELCD_D(11)
ELCD_D(13)
ELCD_D(15)
ELCD_D(1)
ON_SW
DM_2.9V
00
9
C
9
9
G
51 52
G
46
47 47
48 48
49 49
5
5
50 50
6
6
7
7
8
8
39
4
4
40 40
41 41
42 42
43 43
44 44
45 45
46
31
32 32
33
33
34 34
35
35
36 36
37
37
38
38
39
24
25 25
26
26
27
27
28 28
29
29
3
3
30
30
31
17
18 18
19
19
2
2
20 20
21
21
22 22
23
23
24
1
10 10
11
11
12 12
13
13
14 14
15
15
16 16
17
CN900
1
U923
C662
MLCD_LED2
MLCD_LED3
MLCD_LED4
MLCD_LED5
MLCD_FLM
MLCD_D(0)
MLCD_SDO
MLCD_D(3)
MLCD_D(8)
MLCD_D(9)
MLCD_D(10)
MLCD_D(11)
MLCD_D(12)
MLCD_D(13)
MLCD_D(14)
MLCD_D(15)
MLCD_VOUT
MLCD_LED1
MLCD_D(1)
MLCD_D(7)
MLCD_D(6)
MLCD_D(5)
MLCD_D(4)
MLCD_D(2)
IM1
IM2
MLCD_RS
LCD_RE
MLCD_VSYNC
MLCD_HSYNC
MLCD_OE
MLCD_D1(4)
DMLCD_MCLK
MLCD_D1(3)
MLCD_D1(5)
MLCD_CS
LCD_RESET
MLCD_D1(2)
MLCD_D1(1)
MLCD_D1(0)
SCL_WE
