Diagrama De Circuito De Amplificador - LG MCD204 Manual De Servicio

2. DIAGRAMA DE CIRCUITO DE AMPLIFICADOR

12
R665 R665
R10 R10
AMP_OTW_SENS R667 R667
AMP_OTW_SENS
11
R668 R668
AMP_SD
AMP_SD
R657 R657
FL+_PWM
FL+_PWM
AMP_PDN R664 R664
AMP_PDN
FL-_PWM R8529 R8529
FL-_PWM
10
Option (IC701)
1.MCD104=TAS5342LA
9
2.MCD204=TAS5342A
R659 R659
FR+_PWM
FR+_PWM
FR-_PWM R660 R660
8 FR-_PWM
R671 R671 1K 1K
C671 C671 R666 R666
0.1uF 0.1uF
R8 R8
Q608 Q608
R672 R672 1K 1K
1
8550 8550
7 R670 R670
AMP_PROTECT
Q607 Q607
R673 R673
KRC103S KRC103S
100K 100K
1
PWM_DAT
6
C673 C673 C672 C672
PWM_CLK
0.01uF 0.01uF 0.01uF 0.01uF
PWM_RST
L601 L601
+3.3V_PWM
220R/100MHz 220R/100MHz
L603 L603
5 C604 C604 + + 220R/100MHz 220R/100MHz
C603 C603
1000uF/10V 1000uF/10V
0.1uF 0.1uF
4
220R/100MHz 220R/100MHz
C605 C605 + +
C609 C609
10uF/50V 10uF/50V
0.1uF 0.1uF
3
DAC_BCK
DAC_BCK
DAC_LRCK
DAC_LRCK
DAC_DATA
DAC_DATA
2
1
A B C D
C678 C678
22R 22R
0.1uF 0.1uF
22R 22R
1 44
GVDDB GVDD_A
100R 100R
2 43
/OTW BST_A
C669 C669
3 42
NC NC
0.1uF 0.1uF
4 41
NC PVDD_A
100R 100R
5 40
/SD PVDD_A
100R 100R
6 39
PWM_A OUT_A
100R 100R
7 38
RESET_AB GND_A
100R 100R
8 37
PWM_B GND_B
R669 R669 27K 27K
9 36
OC_ADJ OUT_B
10 35
GND PVDD_B
11 34
AGND BST_B
C667 C667
12 33
VREG BST_C
0.1uF 0.1uF
13 32
M3 PVDD_C
14 31
M2 OUT_C
15 30
M1 GND_C
100R 100R
16 29
PWM_C GND_D
17 28
/RESET_CD OUT_D
100R 100R
18 27
PWM_D PVDD_D
19 26
NC PVDD_D
20 25
NC NC
1R 1R
21 24
VDD BST_D
22R 22R
22 23
GVDD_C GVDD_D
+ +
22R 22R
C679 C679
0.1uF 0.1uF
PWM_DAT
R632 R632 100R 100R
PWM_CLK R633 R633 100R 100R
PWM_RST R622 R622 1K 1K
C606 C606
C608 C608
10uF/50V 10uF/50V
0.1uF 0.1uF
1
IO_VSS1
2
PLL_DVSS
3
PLL_DVDD
C610 C610 0.1uF 0.1uF 4
PLL_XPD
5
PLL_LPF_SEL
6
PLL_AVDD
7
L602 L602
PLL_EXT_LPF
8
PLL_AVSS
9
IO_VSS9
C611 C611 0.1uF 0.1uF 10
IO_VDD10 IC601 IC601
11
MBCK
12
MLRCK
C612 C612 0.1uF 0.1uF
13
DVDD13
14
DVSS14 PS9831 PS9831
15
MSDIN0
C607 C607
16
MSDIN1
220uF/10V 220uF/10V 17
MSDIN2
18
MSDIN3
R610 R610 100R 100R 19
SBCK
R611 R611 100R 100R
20
SLRCK
21
IO_VSS21
C613 C613 0.1uF 0.1uF 22
IO_VDD22
R612 R612 100R 100R
23
SSDIN0
24
SSDIN1
25
SSDIN2
R607 R607
C621 C621 C631 C631 C639 C639 C646 C646 C652 C652
100R 100R 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
E F G H
R674 R674 22R 22R
R9 R9 22R 22R
C685 C685 C666 C666
+ +
0.1uF 0.1uF 0.1uF 0.1uF
C674 C674
0.033pF 0.033pF
C686 C686
680pF 680pF
L705 L705
9.5uH/7A 9.5uH/7A
R676 R676
10R 10R
C680 C680
0.22uF 0.22uF
R677 R677
C681 C681 10R 10R
0.22uF 0.22uF
L706 L706
9.5uH/7A 9.5uH/7A
C687 C687
680pF 680pF
C675 C675 Option (INDUCTOR/COIL)
0.033pF 0.033pF
1.MCD104，L703、L704、L705、L706=9.5uH/5A
C676 C676
0.033pF 0.033pF 2.MCD204，L703、L704、L705、L706=9.5uH/7A
C688 C688
680pF 680pF
L704 L704
9.5uH/7A 9.5uH/7A
C682 C682
0.22uF 0.22uF R678 R678
10R 10R
C683 C683
0.22uF 0.22uF
R679 R679
10R 10R
L703 L703
9.5uH/7A 9.5uH/7A
C689 C689
680pF 680pF
C677 C677
0.033pF 0.033pF +5V_ADC_TUNER
+5V_ADC_TUNER (5)
R681 R681
R6 R6 22R 22R
3.3R 3.3R +3.3V
+3.3V
R675 R675 22R 22R
USB_5.6V
USB_5.6V
C1170 C1170
GND
0.01uF 0.01uF
GND
+5V
+5V
R649 R649
C647 C647 +5VM
+5VM
22pF 22pF
120R 120R
+12V
C651 C651 +12V
R642 R642 X601 X601
0.1uF 0.1uF
12.288MHz 12.288MHz
1M 1M -12V
-12V
C648 C648
22pF 22pF
REC_R_IN
REC_R_IN
REC_L_IN
REC_L_IN
DAC_DATA
R655 R655 C654 C654
DAC_DATA
0.1uF 0.1uF
1.2K 1.2K
DAC_LRCK
DAC_LRCK
DAC_BCK
DAC_BCK
FL+_PWM SPEANA
75
FL+_PWM SPEANA
PWM8_P
FL-_PWM
74
PWM8_M FL-_PWM
FAN_CTRL
73
IO_VSS73 FAN_CTRL
72 C658 0.1uF C658 0.1uF
IO_VDD72
71 FR+_PWM PWM_RST
PWM7_P FL+_PWM PWM_RST
FR-_PWM
70
FL-_PWM
PWM7_M
PWM_CLK
69
IO_VSS69 PWM_CLK
68
PWM6_P
PWM_DAT
67
PWM_DAT
PWM6_M
66 C655 0.1uF C655 0.1uF
DVDD66
C656 0.1uF C656 0.1uF
65
IO_VDD65
64
IO_VSS64
63
DVSS63 R697 R697
C6A3 C6A3
62
PWM5_P
61 2.2uF 2.2uF
PWM5_M 10K 10K
60
IO_VSS60 R696 R696
C6A4 C6A4
59
PWM4_P
2.2uF 2.2uF
58
10K 10K
PWM4_M
57
IO_VSS57
C657 0.1uF C657 0.1uF
56
IO_VDD56
55
PWM3_P
54
PWM3_M
53
IO_VSS53
52
PWM2_P R691 R691
51 C6A5 C6A5 C6A6 C6A6
PWM2_M
330pF 330pF 330pF 330pF
R656 R656 1M 1M
R699 R699
10K 10K
10K 10K
Q605 Q605
1
C3875S C3875S
R698 R698
10K 10K
R692 R692
+ + C653 C653 100R 100R
470uF/10V 470uF/10V
I J K L
3-25 3-26
FB1104 FB1104
+12V +12V
+12V
OUT_L+
220R/100MHz 220R/100MHz
cap Option (C731)
PVDD
PVDD
OUT_L-
1.MCD104=1000uF/35V
C1195 C1195 OUT_R+
+ +
2.MCD204=1000uF/50V
0.1uF 0.1uF
OUT_R-
L_OUT+
L702 L702
1uF 1uF
C701 C701 C702 C702
OUT_L+
C696 C696 4 1
0.1uF 0.1uF 0.1uF 0.1uF
4Ω/50W
1uF 1uF
C694 C694 4Ω/100W
R683 R683
R682 R682
C705 C705 C706 C706
6.2R 6.2R OUT_L-
6.2R 6.2R 1uF 1uF 2 3
0.1uF 0.1uF 0.1uF 0.1uF
C679 C679
22uH×2 22uH×2
L_OUT- Option (Speaker)
1.MCD104=4Ω/2×50W
2.MCD204=4Ω/2×100W
R_OUT+
L701 L701
C698 C698
C703 C703 C704 C704
OUT_R+
1uF 1uF 4 1
0.1uF 0.1uF 0.1uF 0.1uF
4Ω/50W
C695 C695
4Ω/100W
1uF 1uF
R684 R684 R685 R685
C707 C707 C708 C708
6.2R 6.2R OUT_R-
6.2R 6.2R 2 3
C699 C699
0.1uF 0.1uF 0.1uF 0.1uF
1uF 1uF
22uH×2 22uH×2
R_OUT-
R944 R944 10R/NC 10R/NC FAN+
+12V
R945 R945 10R/NC 10R/NC
R946 R946 10R/NC 10R/NC
C940 C940 C941 C941
0.1uF 0.1uF 0.1uF 0.1uF R947 R947 10R/NC 10R/NC + +
(5)
R948 R948 10R/NC 10R/NC
Q802 Q802
(5)
S8550 S8550
3 2 R949 R949 390R 390R
Q801 Q801
R950 R950 390R 390R
(5)
KRC103S KRC103S
R951 R951 390R 390R
R952 R952 390R 390R
(5)
R954 R954 390R 390R
1
FAN_CTRL
(6)
PVDD
(5) R940 R940
PVDD
10K 10K
(5)
PVDD
(5)
GND
(5)
AMP_PROTECT GND
AMP_PROTECT (6)
(5)
AMP_PDN +3.3V_PWM
AMP_PDN (6)
(5)
AMP_SD +3.3V
AMP_SD (6)
(5)
AMP_OTW_SENS USB_5.6V
AMP_OTW_SENS (6)
(6) L110 L110
+5V
220R/100MHz 220R/100MHz
(5) L105 L105
+5VM
220R/100MHz 220R/100MHz
(6)
+5V_ADC_TUNER
(6)
(6)
+12V
R690 R690
-12V
+12V
22K 22K R700 R700
REC_R_IN
REC_R_IN
22K 22K
R701 R701
REC_L_IN
REC_L_IN
22K 22K
C6A1 C6A1
SPEANA
SPEANA
2.2uF 2.2uF
D3 D3
1N4148 1N4148 Option (PVDD)
+ +
R694 R694 R695 R695 C16 C16 R11 R11
1.MCD104=22V/5A
220K 220K 220K 220K 0.22uF/50V 0.22uF/50V 100K 100K
2.MCD204=31V/7.5A
C6A2 C6A2
2.2uF 2.2uF
R693 R693
100K 100K
M N O P Q
JK702 JK702
1 OUT_L+
2 OUT_L-
3
OUT_R+
4
OUT_R-
WP4-3 WP4-3
1
2
R_speaker R_speaker
1
2
L_speaker L_speaker
2 FAN+
FAN
1 FAN-
PN401 PN401
2P/2.5MM 2P/2.5MM
15 PVDD
14
PVDD PVDD
13 PVDD
12 PGND
11
PGND
10
+3.3V_PWM
9 +3.3VD(1.5A)
8
USB_5.6V
7
+5V(1.5A)
6
DGND
5
+5VM
4
MGND
3
+12VA(0.4A)
2 -12V/0.2A
1
AGND
CN105 CN105
12P/2.5mm 12P/2.5mm
Amplifer
MCD104&MCD204
R S T