Main - D/Ac Circuit Diagram - LG MDD105 Service Manual

5. MAIN - D/AC CIRCUIT DIAGRAM

R103
10K
12
R1C1
+5.6V
100R
HP_SENSE
HP_MUTE
D600
1N4148 D601
11
1N4148
R877
R876
0R
C600 10R
220uF
Q802
16V Q803
C8550
C8050
R875
4K7
10
C818
22uF
50V
R873 R874
1K 1K
9
Q804
Q805
KRC231
KRC231
R857
R861
8R2
8R2
R858 R862
10K 10K
8
R859 R860
2R2 2R2
C681 C682
+12VA
47uF 47uF
25V 25V
C848 220uF
C846
16V
16V
220uF
C842
C844
IC802
7
104P
MC4580 104P
R856
6K8 8 1
VCC OUT
C849 7 2
OUT IN-
47P(100P)
6 1N- IN+ 3
5 1N+ VSS 4
6
R868 R867
68K 68K
C851 C850
47P 47P
R865 R864
R854 R855
6K8
6K8 6K8
5
C852
C860 C859
4.7uF
4.7uF 4.7uF
C861 C863
22P 22P
C875 C862 C864 C854
100P 22P 22P 100P
4
C858 C856
330P 330P
C857 C855
330P 330P
3
R852 R853
R870 R869
15K 15K
15K
R850 R871
10K 10K
R851 R872
10K 10K
2
BUS-DAC
1
A B C D
SIP1
4P/2.0MM
HP_SENSE
1
2 HP_R
GND
3
4 HP_L
PWM/DSP_CLK
PWM/DSP_DAT
+3.3VD
FB607
FB2500
C646 C647
104P C611 1000uF
104P
10V
R160
PWM_RST
0R
R161
+5.6V
NC
$$$28504
10uF
C643
C639
104P
16V
C613 C644 104P
103
C645
C636
10uF
104P
16V
C641 104P
FB609
-12VA
FB2K7
C642 104P
R863
6K8
C847
47P(100P)
R653 100R
ADC_BCK
R654 100R
DALRCK
C640 104P
DADATA_0
R655 100R
R678
NC
6K8
R656 100R
DADATA_1
C853
R657 100R
4.7uF
DADATA_2
R660 100R
DADATA_3
PWM_MUTE
R659 100R
BQ_RST
R658 100R
BQ_STB
REC_R
REC_L
R687
15K NC
R686
NC
D602
R685
1SS355
100R
SPBANA
R639 C690
220K 0.1uF
50V
E F G H
R667 C678
120R 22P
R666
1M C673
22P
R671
100R
R670
100R
R665
1K
1 IO_VSS1
2 PLL_DVSS
3
PLL_DVDD
4
IO_VDD4
5 IO_VSS5
6 PLL_AVDD
7
IO_VSS7
8
PLL_AVSS
9 IO_VSS9
10 IO_VDD10
11 MBCK
12
MLPCK
13
DVDD13
IC604
14 DVSS14
PS9831
15 MSDIN0
16
MSDIN1
17
MSDIN2
18 MSDIN3
19 SBCK
20 SLPCK
21
IO_VSS21
22
IO_VDD22
23 SSDIN0
24 SSDIN1
25
SSDIN2
C631
104P
BUS-DAC
C603 2U2 R646
C604 2U2 R647
+12VA
R640
R644
22K R645
220K
C601 C602 220K
2U2 R642 2U2
1M
R643
R638 100K C605 C606
NC 330P 330P
Q601
C9014
R641
100R
I J K L M
3-33 3-34
+5V_UCOM
R669
10K
R672
10K
C625
220uF
16V
R673
1K2
C664
GND
104P
PWM_FL+
PWM8_P 75
PWM_FL-
PWM8_M 74
73
IO_VSS73
72
IO_VDD72
C670 104P
PWM_FR+
PWM7_P 71
PWM_FR-
PWM7_M 70
69
IO_VSS69
PWM_SW+
68
PWM6_P
PWM_SW-
PWM6_M 67
DVDD66 66
C655 104P
IO_VDD65 65
C619 104P
64
IO_VSS64
63
DVSS63
PWM5_P 62 TP630
PWM5_M 61 TP629
60
IO_VSS60
59 TP628
PWM4_P
PWM4_M 58 TP627
IO_VSS57 57
IO_VDD56 56
C657 104P
55 TP626
PWM3_P
54 TP625
PWM3_M
IO_VSS53 53
PWM2_P 52
51
PWM2_M
R680
10K
C665
470uF
10V
10K
10K
C608
D605
R561 33P
1SS355
220K
+5VM
1 VDDA CKIN 8
R688
D604
2 VSSA RESET 7
R648 R649
1SS355 C609 104P
10K 10K
3 OUT GND 6
4 STROBE IN 5
R664
R662 1K
22K IC601
R668
XX(MSGEQ7N(FO))
100K
C610
102P
N O P Q
TP612
R689
100K
1K
LG-MDT355/MDD265/MDD65/MDD105
MAIN BOARD D/AC
(2010. 06.14)
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