Panasonic TC-20LA2, Service Manual

Page: 34 / 47

9.3. Signal Block Diagram
AV_IN2
AV_IN1
R
V
L
V
L
R
Y
C
C
Y
RED
WHITE
Y
PR
PB
R G
JK3001
C
Y
C-G
Y-G
SW
G
C
Y
C-G
Y-G
SW
G
V
V-G
L
L-G
R-SW
R
R-G
V-SW
V-SW
V
V-G
L
L-G
R-SW
R
R-G
JK3004
JK3002A
Y-SW
Y
Y-G
PB
PB-G
PR
PR-G
RM001
VOUT
VCC
D1302
JK2101
1
2
3
4
5
6
7
Q4035
SPEAKER
R+
R-
Y
6
S2-1
8
42
C
V
4
R
L
2
5
AV
IN1
R
11
C
14
AV
S2-1
IN2
Y
V
12
10
L 9
44
19
L
R
26
COMPONENT
27
30
28
29
PB
SW
PR
25
Y
22 TV1R
21
24 TV1V
TV1L
RESET
6
13
STOP MODE
16
72
SCL1
REMOTE
5
GC RESET
19
SDA1
54
SCL0
43
49
18
17
KEY
SDA0
MAIN SW
A VOL
55
CC IN
66 A MUTE
56
38
LED G
LED R
70
SDA2
SCL2
71
SCL3
SDA3 80
78
27
OSD B
26
PANEL ON
OSD G
47
OSD R
24
52 INV ON
59 SRQ
BS ON 58
LCD MUTE 3
Q4016,Q4021,Q4024
Q4015,Q4020,Q4025
Q4014,Q4019,Q4027
OUT1+ 2
OUT1-
4
OUT2-
OUT2+
10
12
6
IN1
IN2 8
9
VOL
TC+
TA2
14
45
38
46
TB1
TB6
16
51
22
18
TA1
56
TD3
39
TCLK-
TD-
41
7
40
42
TA5
TB+
8
TD1
TCLK+
10
TC3
TA6
TA-
37
TB0
48
TD2
IC4018
TC2
47
55
23
3 TA5
TB2
TB4
TA4
20
LVDS
TD+
6
TC-
TA3
TD4
11
24
12
2
TC1
4
TC0
TA0
54
TA+
TB-
TD5
TB3
15
52
50
TB5
19
5
RXCLK+
2
11
8
14
9
15
17 RX0+
RXCLK-
RX0-
12
RX1+
18
6
RX3-
RX2-
RX1-
PANEL 5V
A11
RX2+
RX3+
PR OUT 64
56 PB OUT
V OUT 54
61
SDA1
SCL1 59
53 DC OUT
L
5
1
R
3
2
7
6
IC1003
5 4
RESET
Q2010
Q2009
OUT
AUDIO
L 49
51
R
IC3001
AV SW
11
SDA
17
VIDEO OUT
10
12
AUDIO OUT
AFT
13
SCL
Q001
TU001
TUNER
6
9
2
8
4
A1
9
2
8
4
TA1
6
2 2
A2 TA2
SCL1
SDA1
TV R
TV L
AFT OUT
TV V
SDA 19
21
18
ROUT
SCL
14
LOUT
22
IC2201
MPX IN
MTS
TA-BOARD
IC1011
SWITCHING
AUDIO AMP
IC2001
IC1001
MCU
LCD PANEL
VIN1 42
VIN2 49
56 VIN3
YUV00 20
8 YUV09
YUVVP0 7
6 YUVHP0
MD00 5
3 MDO02
143
136
MDO10
MDO03
132 MDIN00
125 MDIN07
MDIN15 115
122 MDIN08
MDO15
MDO07
YUVHP0
16
22
33 MDIN10
6
YUV09
44
17
MDO08
37
15
MDIN00
MDO00
55
48
YUV00
YUVVP0
163 R07
170 R00
152
159
G00
G07
141
B07
B00 148
LCDR0 LCDR7
LCDG0 LCDG7
LCDB0 LCDB7
NRST 33
VS
HS
28
27
SCL
SDA
2
1
265
NRST
135
133
25
26 SDA
SCL
106 OSDG05
OSDR04 96
111 OSDB04
132 LCDMUTE
64Mbit SDRAM
IC4017
GLP
IC4014
GC3FM
IC4012
SDA2
SCL2
SDA2
SCL2
Q1302
Q1303
Q1300
Q1301
5
REMOTE
R-BOARD
RECEIVER
R1
1
3
2
LED_G
5
A5
3
2
1
LED_R
STB 3.3V
REMOCON
L-
L+
SPEAKER
3
V2
2
4
1
2
V1
4
1
3
6
5
R ch-
V-BOARD
SDA1-5
SCL0
SDA0
SCL1-5
SCL3
SCL2
SDA3
SDA2
Q2002
Q2004
Q1003
Q1002
R
L
SDA1-5
SCL1-5
SCL1-5
SDA1-5
7
9
6
8
11
10
STB 3.3V
L ch-
L+
L hp+
R hp+
R+
8
A9
9
6
POWER ON
POW ON PULSE
KEYSCAN
16 ON/OFF
A8
5
A12
7
4
6
2
1
SDA0
SCL0
SDA2/SDA1
SCL2/SCL1
IRQ
STB +B
STB 5V
SCL3
SDA3
Q2003
Q2005
Q1004
Q1001
OSD B
OSD G
OSD R
OSD B
OSD G
OSD R
Q4036
1
PANEL 5V
LED_G
LED_R
LED G
LED R
Q2007
Q2006
Q1013
6
SDA
SCL
5
SCL0
SDA0
IC1002
EEPROM
STB 5V
57 AGC ADJ
1
2
3
6
5
7
+
-
+
-
IC4003
OP AMP
171
172 APWM
PWRPWM
Q4033
Q4034
18
17
AI DIM
DUIM DIM
COMPONENT
TV
PR
PB
V/Y
TO
POWER UNIT
FACTORY
FOR
Q3001,Q3006,Q3008
C/Pb
Pr
V/Y
HEADPHONE
L
R
SY OUT 52
Q1005,Q1007
SW
STB 3.3V
R LED
G LED
USE
HS
VS
SUB 5V
COMPONENT
A-BOARD
TC-20LA2/2D
Signal Block Diagram
TC-20LA2/2D
Signal Block Diagram
19