Diagrama De Circuito De Sintonizador Y Mcu - LG MCD204 Manual De Servicio

3. DIAGRAMA DE CIRCUITO DE SINTONIZADOR Y MCU

TUNER BLOCK Option (TU401)
12
1.AM/FM 无RDS= KST-MW004MV1-S65W
2.单FM 无RDS= KST-MW000FV0-S65
3.单FM 带RDS= KST-MW104FV1-S65
11
R113 R113
1.5K 1.5K
1
L-OUT
2
10
R-OUT
R114 R114
3
1.5K 1.5K
VCC
4
30
SLCK
5
SDIO
32
6
SEN
9 7
RST
31
8
GPIO2
+ +
8
+5V_ADC_TUNER
L108 L108
VCC33
220R/100MHz 220R/100MHz
7
TP11 TP11 TP12 TP12
FL- 18
FL- 17
16
6 FL+
FL+ 15
VKK 14
GND 13
LED_VCC 12
5
11
VOLA
10
VOLB
GND 9
IR_IN 8
STB 7
4
6
CLK
5
DAT
D4 D4
SB+5V 4
1N4001 1N4001
GND 3
KEY1 2
3
KEY2 1
CN304 CN304
18pin-1.0mm 18pin-1.0mm
+5.6VA
RECMUTE
RECMUTE
2 PBMUTE
PBMUTE
4052B
4052B
4052A
4052A
MAIN_RESET
MAIN_RESET (5)
MICOM_CLK
MICOM_CLK
1
MICOM_DO
MICOM_DO
MICOM_DI
MICOM_DI
A B C D
TUNER-L
TP21 TP21
TUNER-R
TP20 TP20
TUNER_SCLK
TP19 TP19
TUNER_SDIO
TP18 TP18
TUNER_SEN
TP17 TP17
TUNER_RST
TP16 TP16
TUNER_GPIO2
TP15 TP15
R124 R124
4.7K 4.7K
TUNER-L
TUNER-R
R169 R169 100R 100R
RECBEAT
R101 R101
33R 33R TUNER_SCLK PBSW R170 R170 100R 100R
R102 R102 33R 33R TUNER_SDIO RECSW R171 R171 100R 100R
R103 R103 33R 33R TUNER_SEN 4052A R172 R172 100R 100R
R107 R107 1K 1K TUNER_RST 4052B R174 R174 100R 100R
R104 R104 33R 33R
TUNER_GPIO2
R147 R147 100R 100R
AMP_PDN
AMP_SD R146 R146 100R 100R
C109 C109
R106 R106
0.1uF 0.1uF
10K/NC 10K/NC
+5V_CPU
R120 R120 100R 100R
DEBUG2
R121 R121 100R 100R
DEBUG1
DEBUG0 R122 R122 100R 100R
TP13 TP13 TP14 TP14 TP22 TP22
STANDBY_LED
PWM_RST R160 R160 100R 100R
FL-
TUNER_SEN
R149 100R R149 100R
FL+ AMP_PROTECT
VKK PWM_DAT
PWM_CLK
LED_VCC EEPROM_DAT
VOLA EEPROM_CLK
VOLB
REMCON
VFD_STB
VFD_CLK
VFD_DO
R131 R131
MICOM_CS
R135 R135
REMCON
R138 R138
KEY1
R140 R140
KEY2 KEY2
TP1 TP1 TP2 TP2 TP3 TP3 TP4 TP4 TP5 TP5 TP6 TP6 TP7 TP7 TP8 TP8 TP9 TP9 TP10 TP10
(3)
TUNER-L AMP_OTW_SENS
TUNER-L (3)
(3)
TUNER-R SPEANA
(3) TUNER-R (3)
RECBEAT MICOM_CS
(3) RECBEAT (3)
PBSW PWM_CLK
PBSW (3)
RECSW PWM_DAT
(5) RECSW (3)
AMP_PDN AMP_PROTECT
(5) AMP_PDN (7)
AMP_SD PWM_RST
(5) AMP_SD (7)
E F G H
+5V_CPU
C107 C107
0.1uF 0.1uF
8 1 DEBUG2
VCC E0
7 2 DEBUG1
R117 R117 WC E1
100R 100R
6 3 DEBUG0
SCL E2
5 4
M_RST
SDA GND
R118 R118
C108 C108
100R 100R GND
0.022uF 0.022uF
R123 R123
CN103 CN103
4.7K 4.7K
5pin-2.0mm 5pin-2.0mm
R178 R178
4.7k 4.7k
C117 C117
R180 R180
100uF/16V 100uF/16V
4.7k 4.7k
33
O_AMP_PDN
34
I_AMP_SD
35
VSS3
36
VDD3
37
DBGP2
38
DBGP1
39
DBGP0 IC102 IC102
40
O_STANDBY_LED
41
O_PWM_RST LC87F5M64A LC87F5M64A O_PWR_CTRL
42
PC2
43
O_TUNER_CE
44
I_AMP_PROTECH
45
P_PWM_DAT
46
O_PWM_CLK
47
P_EEPRON_DAT
48
O_EEPROM_CLK
100R 100R
C113 C113
100R 100R 0.1uF 0.1uF
10K 10K
10K 10K
R142 R142
330K 330K
R151 R151
AMP_OTW_SENS (7) R145 R145
4.7M 4.7M 1M 1M
SPEANA (7)
MICOM_CS (5)
R15 R15
+5.6VA
X101 X101 X102 X102
PWM_CLK (7) 22K 22K
32.768KHz 32.768KHz 9.8304MHz 9.8304MHz
PWM_DAT (7)
C110 C110 C111 C111 R18 R18
1
20pF 20pF 20pF 20pF
C112 C112 C114 C114
2.2K 2.2K
AMP_PROTECT(7)
22pF 22pF 22pF 22pF
PWM_RST (7)
I J K L
3-27 3-28
de[16..0]
FL+
FL-
DEBUG2
5
VKK
DEBUG1
4
C140 C140
0.022uF 0.022uF
DEBUG0
3
+5.6VA
+5.6VA
2 M_RST
P_SENSE
1
P_CTL
VFD_PWR
+5V_CPU
D102 D102
+5.6VA
1N4148 1N4148
+ +
C116 C116
0.1uF 0.1uF TP23 TP23 TP24 TP24
R192 R192
16 RECMUTE
O_RECMUTE
PBMUTE
15
O_PBMUTE
AMP_OTW_SENS
14
I_OTW
+ +
13
220uF/10V 220uF/10V
P02 C123 C123
0.1uF 0.1uF
VOLB
12
I_VOLB
11 VOLA
I_VOLA
10
VSS2 M1 M1
C119 C119 M3.2-6.1 M3.2-6.1
9
VDD2
0.1uF 0.1uF
R119 R119 100R 100R P_CTL
8
R143 R143 100R 100R
VFD_PWR
7
O_VFD_PWR
C11 C11 C12 C12
6
P17 0.01uF 0.01uF 0.01uF 0.01uF
5
O_CD_RST
4
O_VFD_CLK
M_RST
3
O_VFD_STB
2
O_VFD_DO
1
I_CD_CLK
R188 R188
4.7K/NC 4.7K/NC
R176 R176
L106 L106
4.7K 4.7K
220R/100MHz 220R/100MHz
L107 L107
1
OUT
220R/100MHz 220R/100MHz
2 L1 L1
DGND
3
220R/100MHz 220R/100MHz
IN
L2 L2
IC103 IC103
KIA7042AT KIA7042AT
220R/100MHz 220R/100MHz
R186 R186
12K/NC 12K/NC
R177 R177
C137 C137 0.022uF 0.022uF
560R 560R
C138 C138 0.022uF 0.022uF
R16 R16 R17 R17
+5.6VA
1K 1K
10K 10K
Q4 Q4
Q3 Q3
1 1
2N3904 2N3904
8550 8550
Q5 Q5
Option
2N3904 2N3904
M N O P Q
1
FL+/250mA
2
FL-/250mA
3
VKK
4
DGND_CPU
5
5.6V/400mA
6
PWR_SENSE
7 PWR_CTRL
8
VFD_PWR
CN104 CN104
8pin/2.0mm 8pin/2.0mm
TP25 TP25 TP26 TP26
R195 R195
4.7K 4.7K
IC104 IC104
KIA7027AT KIA7027AT
1K 1K
C122 C122
C124 C124
0.01uF 0.01uF
M2 M2 M3 M3
M3.2-6.1 M3.2-6.1 M3.2-6.1 M3.2-6.1
C13 C13
0.01uF 0.01uF
C129 C129 0.1uF 0.1uF
C135 C135 0.01uF 0.01uF
C127 C127 0.01uF 0.01uF
C7 C7 0.01uF 0.01uF
C126 C126 0.022uF 0.022uF
C6 C6 0.022uF 0.022uF
MCU+TUNER
MCD104&MCD204
R S T