Diagramas De Circuitos; Diagrama Del Circuito De Main - LG NE-9513N Manual De Servicio

DIAGRAMAS DE CIRCUITOS

1. DIAGRAMA DEL CIRCUITO DE MAIN

C203
C202 104(T)
R204
5.6K
R205
10/50
10K
C204
Vref
104(T)
IC201A
2 4558
1 C205
3
R206 1/50
56K
C201 R203
47K
10/50
Vref
Vref
R202 20K
R201 20K
JK1
C2
R5
RCA
2.2K 2.2/50
DVD_R
L
AUX_L
C5 R2
AUX_R
AUX
470(T) 470K
DVD_L
C7
C8
470(T)
2.2/50
R
R7
2.2K R8
470K
C4
R3
2.2/50
2.2K
L
R4
C3
470K
470(T)
C1
C6
470(T)
2.2/50
R
R1
R6
2.2K
470K
FM
TUNER
TUN/MUTE
1
+9V
2
TUN-L
3
AGND
4
TUN-R
5
CE
6
DI
7
CLK
8
DO
9
DGND
C151
10
104
RDS-CLK
11
RDS-DATA
12
R504
1K
CN601
A B C D
R207
C207
1K
R209
10K
124(M)
6 2
C206 7
R210
5 3
IC201B IC202A
10K
4558
4558
1/50
R208
C208
220K
563(M)
C212
Vref +9V 104
Vref
+9V
1 28
Vs GND
C111 2 27
MIC CREF
47/16 3 26
IN1_L IN1_R
4 25
IN2_L IN2_R
5 24
IN3_L IN3_R
6 23
IN4_L IN4_R
7 22
MUX_L MUX_R
C136 8 21
IS_L IS_R
R233
272(T) 9 20
Treble_L Treble_R
5.6K
C149 104(T) 10 19
Bassi_L Bassi_R
C301 11 18
C148 104(T)
Basso_L Basso_R
2.2/50
12 17
OUT_L OUT_R
13 16
DGND ALC
C302 14 15
SCL SDA
2.2/50
IC101
TDA7468
IC501
+9V
L7805
1 3
IC502
C513 D501
L7809
330/16
R9
1SS133
1 3
C512
100R /2W
470/16
Vref
R401
1.5K
R403 C405
1.5K
220/16
R404
C500
ZD501 R405
1.5K
10/50
5.6V 47K
D302
Q410
FR104
KTA1023 D405
ZD403
SW121
5.6V R410
1N4007
2.2K
RESET
C412
C410
100/50
100/50 Q401
KTC3205
C411 ZD410
1/50 MTZ33C
C404 R402
470R
47/16
ZD401
MTZ3.6B
E F G H
Vcc
C209
R211
124(M)
10K
6
1 7
5
IC202B 8
R212
IN1+ OUT1+
C210 C211
10K 4558 6
IN2+
393(M)
10/16 9
IN3+ OUT2-
12
IN4+
Vref +9V
OUT3-
C213
13
104 CIV
OUT4+
10
MOD1
5
MOD2 SVR
C18
22/50
C502
22uF /50V
C135
Vref
272(T)
C147 104(T) R133
18K
R232
R123
C140 104(T)
5.6K R131
2 10K
22K
C113 C121 C123 C125 1
0.47uF /50V 3
IC102A
C129
4558
223(T) 223(T) 223(T)
104(T)
R125
R121
Vref
390K C127
56K
104P
R134
18K
R124 Vref 9V
22K
C130
R132
6 10K 104(T)
C122 C124
C126
7
223(T) 223(T) 223(T)
5
IC102B
4558
Vcc
R126
R122
390K
56K
STBY MUTE
Vref
Vcc C11
C9 473
6800U F/35V
2 4
BD1
C10 C12
104P F RS605 473
35V100m A
3.5V200m A
D401
1N4007
D402
1N4007
C403
D403
330/35
1N4007
D404
1N4007
I J K L
3-54 3-55
C511
470uF /35V
C510
104P
IC503
TDA8947
C504
1 470UF/25V
4
SUB
14
1
R511
2
17 2.2R
D502 R510
11 2.2R
R512
1N4148 R513 2.2R
C503 2.2R C506
220uF /25V 104P
C507
104P
C508
C509 104P
104P
Vcc
C133
R127
104(T)
R508
R129
3.3K
39K
56K
C131
R505
102(T)
10K R507
39K
Q503
C1815
R128
C134 ZD502
3.3K
104(T)
9.1V
R503
R130 39K Q502
56K C132 C1815
102(T)
Q504 R506
C1815
820R
R501
10K
F501
! PWR_SW
T1.25A250V
!
PT501
17V4A
220V ~
472/400V
PLUG
AUX N
SUBWOOFER
M N O P
JK2
L
G
C505
470UF/25V
G
R
R502
Standby
220R
R509
39K C501
3.3uF /50V
Q501
C1815
Q R S T