SPEAKER AMP
EUSY0335701
62K
R502
C507
220n
C504
47n
C505
47n
62K
R501
FB501
C502
1u
C1
BYPASS
B2
GND
IN+
C2
IN-
C3
VDD
A3
B3
VO+
A1
VO-
_SHUTDOWN
B1
U504
TPA6205A1ZQVR
10K
R505
10u
C500
R507
10K
+VPWR
TP504
SPK+
SPK_AMP_EN
LINE_ON
LINE_OP
SPK-
12ohm
R205
R204
12ohm
47p
C202
C201
47p
MICBIAS
T15
AC18
LINE_ON
LINE_OP
AC17
HKAIN5
AB23
HPH_L
W17
AA17
HPH_R
EAR1ON
AE18
EAR1OP
AF18
MICBIAS
HPH_L
HPH_R
LINE_OP
LINE_ON
VBAT_TEMP
RCV-
RCV+
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 83 -
G1
G2
G3
G4
54
55
56
57
58
59
6
60
61
62
63
64
7
8
9
39
4
40
41
42
43
44
45
46
47
48
49
5
50
51
52
53
24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
CN102
1
MLED3
MLED4
MLED5
MLED6
WLED_PWR
I2C_SDA
I2C_SCL
VGA_CAM_RESET_N
SPK_RCV-
MOTOR+
MOTOR-
MLED1
MLED2
CAM_DATA(2)
CAM_DATA(1)
CAM_DATA(0)
CAM_VSYNC
CAM_HSYNC
CAM_DATA(5)
CAM_DATA(6)
CAM_DATA(7)
CAM_PCLK
CAM_MCLK
VGA_CAM_PWDN
CAM_DATA(3)
CAM_DATA(4)
RECEIVER SPEAKER SELECT
DNI
R500
FB500
VREG_MOT_3.0V
NLAS5223BMNR2G
U501
COM1
3
COM2
9
GND
6
4
IN1
8
IN2
NC1
5
7
NC2
2
NO1
10
NO2
VCC
1
+VPWR
C506
0.01u
RCV+
SPK_RCV_SEL
RCV-
SPK+
SPK-
SPK_RCV-
R306
51
8
9
G1
G2
G3
G4
51
52
53
54
55
56
57
58
59
6
60
61
62
63
64
7
37
38
39
4
40
41
42
43
44
45
46
47
48
49
5
50
22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
1
10
11
12
13
14
15
16
17
18
19
2
20
21
CN300
C300
20p
MLED3
MLED1
MLED4
SPK_RCV-
CAM_MCLK
VGA_CAM_PWDN
CAM_PCLK
CAM_DATA(0)
CAM_DATA(1)
CAM_DATA(2)
CAM_DATA(3)
CAM_DATA(4)
CAM_DATA(5)
CAM_DATA(6)
CAM_DATA(7)
VGA_CAM_RESET_N
CAM_HSYNC
CAM_VSYNC
MOTOR-
MOTOR+
I2C_SCL
I2C_SDA
MLED6
MLED5
MLED2
WLED_PWR
SPEAKER_RE/-
SPEAKER PAD
OUT100
OUT101
SPK_RCV-
Summary of Contents for KF700
Page 1: ...Service Manual Model KF700 Service Manual KF700 Date May 2008 Issue 1 1 Internal Use Only ...
Page 193: ...Note ...
Page 194: ...Note ...