Diagrama De Circuito De Audio - LG MCD204 Manual De Servicio

7. DIAGRAMA DE CIRCUITO DE AUDIO

JK401 JK401
AV2-8.4-13D AV2-8.4-13D
12
Res Option(R902,R903)
1.MCD104=R902，R903=51K
11
2.MCD204=R902，R903=47K
R902 R902
10
51K
51K
R903 R903
51K 51K
C22 C22 C21 C21
C912 C912 C913 C913 R900 R900
100pF 100pF 100pF 100pF
100pF 100pF 100pF 100pF 18K 18K
9
8
7
6
11
Rec_R
10
Rec_L
9
PB_R
8
PB_L
5
AGND 7
6
Rec_SW
5
PB_SW
4
Rec_BEATCUT
4
3
GND
+9V 2
C204 C204
MOTOR- 1 2200pF 2200pF
PN104 PN104 FB220 FB220
11P-2.0MM 11P-2.0MM
220R/100MHz 220R/100MHz
3
2
1
A B C D
C841 C841
TUNER_L
2.2uF 2.2uF
-12V R3 R3
+12V
47K 47K
R2 R2
PB_L_OUT
1K 1K
R1F1 R1F1
20K
20K
R1F2 R1F2
R905 R905
20K 20K
1K 1K
+ + C910 C910
R901 R901 R904 R904 R906 R906
10uF/50V 10uF/50V
18K 18K 18K 18K 1K 1K
+ + C845 C845
R908 R908 R909 R909
10uF/50V 10uF/50V
18K 18K 1K 1K
R907 R907
1K 1K
C842 C842
TUNER_R
2.2uF 2.2uF
R4 R4
PB_R_OUT
1K 1K
R5 R5
47K 47K
REC_R_IN
REC_L_IN
PB_R_OUT
PB_L_OUT
RECSW
PBSW
RECBEAT
C205 C205
2200pF 2200pF
R209 R209 R208 R208
Q206 Q206 Q205 Q205
1 1
D1304S D1304S D1304S D1304S
3.3K 3.3K 3.3K 3.3K
R210 R210 R206 R206
Q207 Q207
Q204 Q204
1 1
D1304S D1304S
D1304S D1304S
3.3K 3.3K 3.3K 3.3K
R211 R211
PBMUTE
4.7K 4.7K
C207 C207 + +
33uF/16V 33uF/16V
E F G H
+12V -12V
C10 C10 R921 R921
1000pF 1000pF
100K 100K
R917 R917 R919 R919
82R 82R
82R 82R
R913 R913 C851 C851 R920 R920
1uF 1uF
0R 0R 470R 470R
C8490 C8490
47uF/16V 47uF/16V
IC901 IC901
IC902 IC902
BU4052 BU4052
MC4580 MC4580
+ + C848 C848
47uF/16V 47uF/16V
R911 R911 C8500 C8500 R918 R918
1uF 1uF
0R 0R 470R 470R
C9 C9
1000pF 1000pF
R928 R928 R927 R927
100K 100K
5.6K 5.6K
Q201 Q201
KTC3205 KTC3205
R201 R201
3 2
22R 22R
R202 R202
R204 R204
560R 560R
22R 22R
C201 C201 + +
100uF/16V 100uF/16V
ZD201 ZD201
C202 C202 9.1V/0.5w 9.1V/0.5w
2200pF 2200pF
R205 R205
100R 100R
R207 R207
RECMUTE
4.7K 4.7K
C206 C206 + +
1uF/50V 1uF/50V
I J K L M
3-35 3-36
+5VM
R922 R922
5.6K 5.6K
FB818 FB818
220R/100MHz 220R/100MHz
R923 R923
7.5K 7.5K
1
R-IN CKS_0
C899 C899
R924 R924
2
L-IN CKS_2
560R 560R
4.7uF/50V 4.7uF/50V
3
CKS1
4
VCOM RESET
5
AGND SCLK
+ +
6
5V[VA] MCLK
7
3.3[VD] LRCK
8
DGND SDTO
IC903 IC903
+ +
C898 C898
R925 R925
AK5358A AK5358A
560R 560R
4.7uF/50V 4.7uF/50V
R926 R926
7.5K 7.5K
ADC/DAB/BT/CP_RESET
ADC/DAB/BT/CP_RESET (5)
4052B
4052B (6)
4052A
4052A (6)
TUNER_L
TUNER_L (6)
TUNER_R
TUNER_R (6)
RECMUTE
RECMUTE (6)
PBMUTE
PBMUTE (6)
DAC_BCK
DAC_BCK (5)
DAC_MCLK
DAC_MCLK (5)
+12V
REC_R_IN ADC_DATA
REC_R_IN (5)
C203 C203
REC_L_IN DAC_MCLK
100pF 100pF
REC_L_IN (5)
PB_R_OUT DAC_LRCK
PB_L_OUT (5)
PB_L_OUT VCC33
PB_L_OUT (5)
RECSW +5VM
RECSW (6)
PBSW +12V
(6)
PBSW
RECBEAT -12V
RECBEAT (6)
N O P Q
VCC33
FB805 FB805
220R/100MHz 220R/100MHz
+ +
16
15
R929 R929
14
DIF
100R 100R
13
12
DAC_BCK
11
DAC_MCLK
10
DAC_LRCK
R930 R930
9
ADC_DATA
1K 1K
R931 R931 C906 C906
1K 1K 0.01uF 0.01uF
ADC_DATA (6)
DAC_MCLK
(6)
DAC_LRCK
(6)
VCC33 (4)
+5VM (5)
+12V (5)
-12V (5)
AUDIO_BU4052
MCD104&MCD204
R S T