LG HB620 Service Manual

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4. TROUBLE SHOOTING
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Rev D
Camera filter Rev.B
Rev.D
FB502
100ohm
R501
0.1u
C502
FB501
G4
+VPWR
TCC_2.7V_EHI_LCD
61
62
63
64
65
66
67
68
69
7
70
8
9
G1 G2
G3
47
48
49
5
50
51
52
53
54
55
56
57
58
59
6
60
32
33
34
35 36
37
38
39
4
40
41
42
43
44
45
46
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
1
10
11
12
13
14
15
16
17
CN502
L501 56nH
L502
NA
C501
33p
47
R502
FILTER_LCD_RESET_N
KEY_ROW[3]
CAM_DATA[5]F
CAM_DATA[6]F
CAM_DATA[7]F
CAM_VSYNC
CAM_HSYNC
CAM_SYSCLK
VREG_CAM_DVDD_2.8V
MM_MAIN_LCD_CS_N
VC_IO_OFF
SPK_RCV+
MC_IO_OFF
CAM_PCLK
I2C_SDA
I2C_SCL
SPK_RCV-
V_CAM_RESET_N
CAM_DATA[0]F
CAM_DATA[1]F
CAM_DATA[2]F
CAM_DATA[3]F
CAM_DATA[4]F
FILTER_MM_LCD_DATA[2]
LCD_BL_CTRL
CAM_DUAL_LDO_EN
LCD_MAKER_ID
LCD_IF_MODE_0
FILTER_MM_LCD_DATA[0]
FILTER_MM_LCD_DATA[1]
FILTER_MM_LCD_DATA[3]
FILTER_MM_LCD_DATA[4]
FILTER_MM_LCD_DATA[5]
FILTER_MM_LCD_DATA[6]
FILTER_MM_LCD_DATA[7]
MM_LCD_RD_N
FILTER_MM_LCD_ADS_N
MM_LCD_VSYNC
FILTER_MM_LCD_DATA[10]
FILTER_MM_LCD_DATA[8]
FILTER_MM_LCD_DATA[9]
FILTER_MM_LCD_DATA[11]
FILTER_MM_LCD_DATA[12]
FILTER_MM_LCD_DATA[13]
FILTER_MM_LCD_DATA[14]
FILTER_MM_LCD_DATA[15]
FILTER_MM_LCD_WE_N
FILTER_MM_SUB_LCD_CS_N
M_CAM_RESET_N
KEY_COL[1]
KEY_COL[2]
KEY_COL[3]
MOTOR_PWR-
5
G2
10
INOUT_A1
1
2
INOUT_A2
INOUT_A3
3
4
INOUT_A4
9
INOUT_B1
INOUT_B2
8
7
INOUT_B3
INOUT_B4
6
FL504
EVRC14S03Q030100R
G1 G1
5
G2
10
INOUT_A1
1
2
INOUT_A2
INOUT_A3
3
4
INOUT_A4
INOUT_B1
9
INOUT_B2
8
7
INOUT_B3
INOUT_B4
6
10
G2
1
INOUT_A1
INOUT_A2
2
3
INOUT_A3
INOUT_A4
4
INOUT_B1
9
8
INOUT_B2
INOUT_B3
7
6
INOUT_B4
FL502
EVRC14S03Q030100R
EVRC14S03Q030100R
FL503
5
G1
6
INOUT_B4
EVRC14S03Q030100R
FL501
5
G1
10
G2
1
INOUT_A1
INOUT_A2
2
3
INOUT_A3
INOUT_A4
4
INOUT_B1
9
INOUT_B2
8
INOUT_B3
7
7
6
INOUT_B4
EVRC14S03Q030100R
FL505
5
G1
10
G2
INOUT_A1
1
INOUT_A2
2
3
INOUT_A3
INOUT_A4
4
INOUT_B1
9
8
INOUT_B2
INOUT_B3
LCD_RESET_N FILTER_LCD_RESET_N
FILTER_MM_LCD_DATA[8]
FILTER_MM_LCD_DATA[9]
FILTER_MM_LCD_DATA[10]
FILTER_MM_LCD_DATA[11]
FILTER_MM_LCD_DATA[12]
FILTER_MM_LCD_DATA[13]
FILTER_MM_LCD_DATA[14]
FILTER_MM_LCD_DATA[15]
MM_LCD_ADS_N
MM_SUB_LCD_CS_N
MM_LCD_WE_N
FILTER_MM_LCD_ADS_N
FILTER_MM_SUB_LCD_CS_N
FILTER_MM_LCD_WE_N
MM_LCD_DATA[0]
MM_LCD_DATA[1]
MM_LCD_DATA[2]
MM_LCD_DATA[3]
MM_LCD_DATA[4]
MM_LCD_DATA[5]
MM_LCD_DATA[6]
MM_LCD_DATA[7]
MM_LCD_DATA[8]
MM_LCD_DATA[9]
MM_LCD_DATA[10]
MM_LCD_DATA[11]
MM_LCD_DATA[12]
MM_LCD_DATA[13]
MM_LCD_DATA[14]
MM_LCD_DATA[15]
FILTER_MM_LCD_DATA[0]
FILTER_MM_LCD_DATA[1]
FILTER_MM_LCD_DATA[2]
FILTER_MM_LCD_DATA[3]
FILTER_MM_LCD_DATA[4]
FILTER_MM_LCD_DATA[5]
FILTER_MM_LCD_DATA[6]
FILTER_MM_LCD_DATA[7]
[Fig. 4.7] Schematic of LCD part
TCC_2.7V_EHI_LCD
4
40
5
6
7
8
9
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
10
11
12
13
14
15
16
17
18
19
2
20 21
22
23
24
CN103
AXK8L40125G
ENBY0020201
G1
G2
1
C409 0.1u
INSTPAR
PLW0501H-LF
D402
LCD_IF_MODE_0
FILTER_MM_SUB_LCD_CS_N
FILTER_MM_LCD_DATA[14]
FILTER_MM_LCD_DATA[12]
FILTER_MM_LCD_DATA[10]
FILTER_MM_LCD_DATA[8]
FILTER_MM_LCD_DATA[6]
FILTER_MM_LCD_DATA[4]
FILTER_MM_LCD_DATA[2]
FILTER_MM_LCD_DATA[0]
FILTER_MM_LCD_WE_N
MM_MAIN_LCD_CS_N
LCD_MAKER_ID
WLED_PWR
MAIN_LED4
MAIN_LED1
FILTER_LCD_RESET_N
MM_LCD_RD_N
FILTER_MM_LCD_ADS_N
MM_LCD_VSYNC
MAIN_LED2
MAIN_LED3
MAIN_LED5
FILTER_MM_LCD_DATA[11]
FILTER_MM_LCD_DATA[9]
FILTER_MM_LCD_DATA[7]
FILTER_MM_LCD_DATA[5]
FILTER_MM_LCD_DATA[3]
FILTER_MM_LCD_DATA[1]
FILTER_MM_LCD_DATA[15]
FILTER_MM_LCD_DATA[13]
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LG HB620 Specifications

General

Brand	LG
Model	HB620
Category	Cell Phone
Language	English