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Panasonic TH-37PA20AA Service Manual page 492

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DG32
4
5
6
7
2
5
W
OUT1
Q1361
3
OUT2
5
Q1360
Q1355
IC3699
03
IC3517
IC3004
AC
DAC
SWITCHING
L
15
2
1
SCL
6
A
14
6
5
SDA
5
IC1313
CLOCK
CLK
2
IC8002
CLK
7
SWITCHING
41
108
HSYNC
X0
12
PC HD
X1
14
VSYNC
Y0
CLKIN
67
1
PC VD
Y1
5
58
IC8008
2CH MULTIPLEXER
7
I0
SEL
5
6
I1
COM
1
117
116
65
210
63
H SYNC
V SYNC
VIN1
A/D 10bit
10bit
VIN2
A/D 10bit
MATRIX
10bit
RGB
YUV
VIN3
A/D 10bit
10bit
3D/2D com
VPK
CHROMA DEM.
COLOUR DETECT.
D/A 10bit
110MHz x
3
248
240
237
204
BDV
RDV
50
TO
PA8
DG8
12
11
10
9
14
18 19
3
4
GC2M-Y
Q1327
GC2M-PB
Q1325
MAIN-PR
Q1326
EEROM
WP
WP
7
SCL
6
SDA
5
PANEL SCL3
PANEL SDA3
IC8009
SWITCHING
5
6
X
13
3
Y
3
IC8004
TV/VIDEO SYNC
HD
6
HIN
HD-
15
VD
8
VIN
VD-
13
CLP
Q1850
4
GIN
CLPO
17
GREEN
SOS INFO
REMOCON
H SYNC
161
V SYNC
162
GC2M-PB
72
MAIN-PR
83
GC2M-Y
95
R-IN
R
13
INPUT
BRIGHT DET.
G
G-IN
15
INPUT
BRIGHT DET.
B
B-IN
INPUT
17
BRIGHT DET.
CONTRAST
CONT.
23
17
DG31
2
7
6
LO TXD
X0
12
TU TXD
X1
14
LO RXD
Y0
1
TU RXD
Y1
5
LOADER
10
A
IC1001
IC1009
SWITCHING
5V<=>3.3V
SCL0
11
SCL0
9
SDA0
12
SDA0
8
SCL1
17
SCL1
3
SDA1
SDA1
18
2
SCL1L
15
SCL1L
5
SDA1L
16
SDA1L
4
SCL2
13
SCL2
7
SDA2
14
SDA2
6
IC1008
SCL
6
SDA
5
EEPROM
GC RESET
IC1010
OUT
4
RESET
Q1010
TVON
SUB ON
FANONOFF
FANMax/Min
H SYNC
V SYNC
SP MUTE
POFF DEF
SOS
Q1013
IC1006
SWITCHING
SRQ
AV2 QLINK
1
13
Q1019
2
3
AV4 QLINK
5
4
QLINK SEL
Q1012
MSP DEF
A MUTE
Q1225
MAIN DEF
A MUTE
AFC1
KEY
LED R
LED G
Q1254
Q1255
COR
OSD-YS
OSD-BLUE
OSD-GREEN
OSD-RED
1
2
3
4
5
R-OUT
Q1600
11
G-OUT
Q1601
9
B-OUT
Q1602
7
DRIVE
CUT OFF
CONT.
CONT.
22
21
20
IC1309
RGB AMP
X
3
14
TXD1
SCL
53
Y
15
RXD1
SDA
54
13
RST
19
6
IC1002
OUT
CONVERT MICON
IC1004
RESET
74
SCL0
IC1003
75
SDA0
5V
98
SCL1
STB 2.5V
SDA1
99
1
3
2.5V
2
100
SCL2
101
SDA2
IC1005
5V
STB 3.3V
83
RST-DEV
1
3
3.3V
73
RES IN
2
CVBS1B
120
CVBS1A
121
IC1012
92
TVON
10
SUB ON
MEMORY
FANONOFF
12
64Mbit SDRAM
94
FANMax/Min
OSD H
103
IC1013
102
OSD V
81
SP MUTE
16Mbit
80
POFF DEF
FLASH-ROM
SOS
127
IC1311
IC1007
3.3V
AVR 2.5V
TEXT MICOM
PLL
2.5V
1
5
8
SRQ
3
9
Q-Link Select
76
SERVICE
IC1319
97
MSP DEF
3.3V
AVR 2.5V
90
SOUND DEF
AD
93
A MUTE
1
5
2.5V
125
AFC1
3
KEY
124
76
LED R
77
LED G
IC1325
82
SOS INFO
5V
91
FREE RUN
AVR 3.3V
REMOCON IN
5
1
4
3.3V
COR
104
BLANK
105
5
114
B
113
G
R
112
IC3251
SWITCHING
R
RIN1
25
ROUT
RED
PC R
RIN2
17
27
G
GIN1
1
GOUT
GREEN
PC G
GIN2
14
3
B
BIN1
5
BOUT
BLUE
BIN2
PC B
11
7
IC8006
RGB LPF
HD
VP
I1
O1
1
2
VD
HP
13
I6
O5
10
CLP
CLP
9
I4
O4
8
P STATUS
REMOCON
SOS PANEL
TXD TU
TVON
Q1025
Q1026
RXD TU
REMOCON
SOS INFO
Q1004
GREEN
TH-42PA20B/E DG-Board Block Diagram
TO
DG3
D3
26
ROUT
28
GOUT
30
BOUT
VDOUT
22
24
HDOUT
21
MCLPOUT
5
POW STATUS
REMOCON
15
17
REALTIME/INTRA
9
TXD TU
7
RXD TU

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