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TH-42PW4 / TH-42PWD4
13.18. J-Board Block Diagrams
J
J1
FROM H1
B
A
10
DVI IN
24
J2
FROM H2
B
A
Y
1
AV
Pb
3
5
Pr
G / Y
19
RGB/
17
B / Pb
COMP.
R / Pr
15
HD
6
AV
8
VD
S2 DET.
6
AUDIO L
2
AV
AUDIO R
4
1
AUDIO L
RGB/
COMP.
AUDIO R
13
HD
7
RGB/
COMP.
VD
9
19
SCL3
20
SDA3
J3
FROM H3
A
B
R
19
L
2
PC
R
20
G
18
B
16
HD
12
VD
14
RXD-XC
9
TXD-XC
8
TO IC1002
DCE-XC
7
IIC VOLTAGE CONVERT
DTE-XC
5V - 3.3V
6
Q3085
SDA
5
Q3082 / Q3081
SCL
4
Q3083 / Q3080
DVI
IC3001
INPUT SELECT
TO D8
Y
59
1
Pb
AV
61
Pr
6
10
G / Y
Q3007/Q3008
5
G / Y
5
12
Q3001/Q3002
RGB/COMP.
B / Pb
Q3011/Q3012
4
13
B / Pb
7
Q3005/Q3006
R / Pr
Q3009/Q3010
9
46
14
R / Pr
Q3003/Q3004
G
15
44
B
27
SCL3
PC
17
26
SDA3
R
1
26
S2 DET.
For IC3003 AUDIO SELECT
A/DAC2 B/DAC3
AV
H
L
RGB/COMP.
L
H
PC
H
H
For IC3002 SYNC. SELECT
A/DAC0 B/DAC1
AV
H
L
RGB/COMP.
L
H
PC
H
H
SDA2
SCL2
IC3003
AUDIO SELECT
AV
5
IC2401
AUDIO AMP
14
L
RGB/COMP.
2
3
32
15
1
1
PC
R
29
4
Q2406
11
27
A
B
10
9
15
16
DAC2 DAC3
SCL3 SDA3
Q8021
SYNC. ON G
IC3002
IC8001
SYNC. SELECT
SYNC. SEPALATOR
AV
14
4
5
15
SYNC.
RGB/
HD
COMP.
SEPALATOR
15
1
6
13
2
3
8
17
PC
VD
11
4
A
B
10
9
IC1002
DAC0 DAC1
POWER
STB 5
Q3086
38
STATUS
IC1001
SUB MPU
2
Q3086
31
For
REMOTE
6
TUNER
OUT
1
32
CABLE
47
DET
52
RXD-XC
from
TXD-XC
51
IC3004
RS-232C
31
DCE-XC
DAC 3
4
45
DTE-XC
IIC
5
14
DAC 2
SCL3
|
DAC
DAC 1
6
15
SDA3
IC1004
7
DAC0
1
2
SCL1
TIMER
CLOCK
SDA1
3
4
86
IC2302
L
J10
TO SPEAKER
Q2301
1
4
1
12
IC2301
20
R
J11
TO SPEAKER
Q2302
1
4
1
12
12
MUTE
Q2303
Q2304
NHS
33
IC8003
3
17
IC8002
NHD
10
11
2
18
37
HD-
13
12
NVS
38
VD
5
2
1
15
NVD
CLP
9
8
4
16
29
INVERTOR
NHCLP
1
7
34
IIC 5V
25
SCL1
26
SDA1
SCL1
53
22 SCL2
SDA1
54
IC1003
SDA2
21
STB 5
19
6
7
17 SCL3
RESET
18
SDA3
53
30
IIC CONT.
IIC CONT.
IIC INT.
54
14
IIC INT.
LED R
28
3
LED R
29
2
LED G
LED G
REMOTE IN
40
6
REMOTE IN
ALL OFF
33
5
ALL OFF
17
8
STB 5V
+
7
-
C1006
6
5
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