Dsp/ Spbana/ Headphone Circuit Diagram - LG DM5620K Service Manual

4. DSP/ SPBANA/ HEADPHONE CIRCUIT DIAGRAM

12
PWM/DSP_CLK
PWM/DSP_DAT
11
PWM_RST
+3.3VD
FB128
FB252
10
C1B3
C1B4
C1D8
104 104
1000uF/10V
FB127
FB252
C1D9
10uF/50V
C1B5
103
C1B6
C1B7
104
9 104
C1E1
10uF/50V
C1B8
L129 104
FB252
C1B9
104
C1C1
8
104
R1D6 100R
ADC_BCK
R1D7
DALRCK 100R
7
C1C2
104
R1D8
100R
DADATA_0
R1D9
100R
DADATA_1
R1D10
100R
DADATA_2
R1D11 NC
R1E1
6 100R
DADATA_3
PWM_MUTE
5
4
HP_R_M
HP_R_P
R1H3 R1H4
10k 10k
3
R1H5 R1H6
10k 10k
2 HP_L_P
HP_L_M
1
HP_MUTE
A B C D
R1H1 C1F1
120R
22P
X101
12.288MHz
R1H2 C1F2
1M
22P
R1F3 100R
R1F4
100R
C1D6 C1E4 C1D4
C1D5
103 104 104 104
+5.6V
R1F6
NC
R1F7 0R R1F5 1k
C1E3
C1D7
103
220uF/16V
1
IO_VSS1
2
PLL_DVSS
3
PLL_DVDD IO_VSS73
4
PLL_XPD IO_VDD72
5
PLL_LPF_SEL
6
PLL_AVDD
7
PLL_EXT_LPF IO_VSS69
8
PLL_AVSS
9
IO_VSS9
10
IO_VDD10
11
MBCK IO_DVDD65
IC109
12
IC-PS9831
MLRCK IO_VSS64
13
DVDD13
14
DVSS14
15
MSDIN0
16
MSDIN1 IO_VSS60
17
MSDIN2
18
MSDIN3
19
SBCK IO_VSS57
20
SLRCK IO_VDD56
21
IO_VSS21
22
IO_VDD22
23
SSDIN0 IO_VSS53
24
SSDIN1
25
SSDIN2
C1C3 C1C4 C1C5 C1C7
R1E2
104 104 104 104
10k
C1C6
104
C1G9
100P
R1J0
6k8
R1H7
15k
C1G3 R1G2
4.7uF
6k8
C1F4
R1H8 100P
C1G4
R1G3
4.7uF
6k8
15k
C1G7 R1G6
47P
68k
C1F5
C1F3 C1F6 C1F7
330P 22P 22P
330P
HP_VCC-
C1G8
R1G7
47P
68k
C1F8 C1F9 C1F0 C1G0
R1H9 22P 22P
330P 330P
15k
C1G5
R1G4
4.7uF
6k8
C1G1
R1G1
100P
15k
C1G6 R1G5
4.7uF 6k8
E F G H
+5V_UCOM
R1E5 10k
R1E6
10k
C1D3
104
REC_R
R1E4 1k2
REC_L
R1M2
NC
75
PWM_FL+
PWM8_P
74
PWM_FL-
PWM8_M
73
72
C1D2 104 PWM1_SPEANA
71
PWM_FR+
PWM7_P
70
PWM_FR-
PWM7_M
PWM2_SPEANA
69
68
PWM_SW+
PWM6_P
67
PWM_SW-
PWM6_M
66
C1D1 104
DVDD66 R1L5
65
C1C9 104 10k
64
63
DVSS63
62
PWM5_P
61
PWM5_M
60
59
PWM4_P
58
PWM4_M
57
56 C1C8 104
55
PWM3_P
54
PWM3_M
53
52
PWM2_P PWM2_SPEANA
51 R1E3 10k
PWM2_M
R1K6
BQ_RST
C1E2
470uF/10V
PWM1_SPEANA
HP_L_P R1K7
BQ_STB
HP_L_M
HP_R_P
HP_R_M
C1E5
220uF/16V
R1J4
10R
C1E8
HP_VCC+
220uF/16V
Q113 R1K0
8550 10R
R1J6
Q111
R1J2
KTD1304S
10k 1k
D106
C1E7
IN4148
22uF/50V
IC110
4558
R1J9
4K7
KTD1304S R1J7
Q112
1k
R1J8
R1J3 Q114
10k 100R KTD1304S
C1E6
220uF/16V
R1J5
10R
R1J1
6k8
C1H0
100P
Headphone
I J K L
3-27 3-28
CY9 CY10 CY11 CY12 CY13 CY14 CY15 CY16 CY17 CY18 CY19 CY20 CY21 CY22
103 103 103 103 103 103 103 103 103 103 103 103 103 103
R4C2
22k
R4C3
22k
R1M3
NC
+12VA
R1M6
R1L9
22k
R1L7 C1J1
10k 220k
2.2uF
D101
ZD101
R1M0 C1J4 IN4148
5.1V/0.5W
R1L8 10k C1J2 220k C1J3 R1M4 2.2uF
2.2uF 2.2uF
1M
D102
R1M1 IN4148
100k
C1H9
R1L6 C1J0 Q115
330P 330P
10k 9014
R1M7
NC
R1M5
100R
+5VC
D103
IN4148
R1L3
10k
C1H7
IC111
104
8 CKIN VDDA 1
D104
100R R1L0 10k IN4148
7 RESET VSSA 2
C1H5
6 GND OUT 3
104
5 IN STROBE 4
R1K8
C1H6
100k
102
MSGEQ7N NC
R1L4
C1H8
22k
120P
R1L1
100R 10k
R1K9
100k
NC
HP_SENSE
+5.6V
D105
IN4148
FB501
R1K1 R1K2
HP_SW
10k 100R FB70
FB502 HP_R
10uH
FB504 HP_L
FB70
C1J9 C1K1
C1H3
100P
102 102
M N O P Q
R1M9 100R
SPBANA
R1M8
C1J5
220k
104
SPBANA
+12VA -12VA
R1K3 R1K4
2R2 2R2
C1H1
47uF/16V
C1E9
47uF/16V C1H2 C1H4
104 104
DSP/ SPBANA/ HP
2012. 03. 09
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