Circuit Descriptions
7.
7.4
Circuit Description
7.4.1
System power
The main board power is received at connector CN701 from
power board, to receive the power and signals from the PSU.
See
for the correct pining, The shown test points in
.
Table 7-1 Connector CN701 overview
Figure 7-4 System power
7.4.2
Digital/Analogue power
The DVDD3V3 and AVDD3V3 are from U702 (G1084), it can
provide 5 A output current. FB7006 are for power
measurement. FB7006 also is for filtering.
Figure 7-5 Digital/Analogue power
7.4.3
Tuner power
The tuner power is derived from +12V by U752 (AS7805), the
power should not drop below 4.75 V for the Panasonic tuner,
but it can be 4.9V at least.
Figure 7-6 Tuner power
7.4.4
Core Power
The 1.1 V power is derived from TPS54418 for MT5395 core
power.
Figure 7-7 Core Power
Item
Pin
Description
1
1
INVERTER_ON_OFF, Inverter board
control (Low: ON, High: OFF)
2
2
BRIGHT_ADJ, Inverter bright PWM
control (Max.: 0 V, Min.: 3.3 V)
3
3, 4
+12 V Supply
4
5, 6, 7
Ground
5
8, 9
+24 V Supply
6
10
STANDBY, Standby
control (High: Normal, Low: Stand by)
7
11, 12
STB_PWR5V, +5 V SSB Supply
8
13
NA
19090_208_110422.eps
110422
Y
B
D
N
A
T
S
J
D
A
_
T
H
G
I
R
B
F
F
O
_
N
O
_
R
E
T
R
E
V
N
I
V
5
R
W
P
_
B
T
S
V
2
1
+
V
4
2
+
T
U
P
N
I
R
E
W
O
P
C
D
2
0
4
0
/
D
M
S
1
0
7
N
C
N
N
O
C
1
0
7
N
C
N
N
O
C
1
2
3
4
5
6
7
8
9
0
1
1
1
2
1
3
1
TP
704
TP
704
2
0
7
R
%
5
W
6
1
/
1
R
0
0
1
2
0
7
R
%
5
W
6
1
/
1
R
0
0
1
TP
707
TP
707
1
0
7
R
W
8
/
1
%
5
-
+
M
H
O
K
0
1
1
0
7
R
W
8
/
1
%
5
-
+
M
H
O
K
0
1
TP
706
TP
706
TP
705
TP
705
TP
70
3
TP
70
3
1
0
7
C
V
0
1
U
2
2
/
C
N
1
0
7
C
V
0
1
U
2
2
/
C
N
TP
701
TP
701
TP
702
TP
702
19090_209_110422.eps
110422
W
S
_
V
5
+
3
3
V
A
3
3
V
D
0
3
7
C
V
0
1
F
u
0
1
/
C
N
0
3
7
C
V
0
1
F
u
0
1
/
C
N
f
U
3
U
T
3
3
-
4
8
0
1
G
2
0
7
U
f
U
3
U
T
3
3
-
4
8
0
1
G
2
0
7
U
N
I
V
3
T
U
O
V
2
GND
1
+
5
0
7
C
V
6
1
F
U
0
0
1
+
5
0
7
C
V
6
1
F
U
0
0
1
1
3
7
C
V
6
1
N
0
0
1
1
3
7
C
V
6
1
N
0
0
1
6
0
7
B
F
A
m
0
0
0
3
/
R
0
2
1
6
0
7
B
F
A
m
0
0
0
3
/
R
0
2
1
1
2
+
7
1
7
C
V
6
1
F
U
0
0
1
+
7
1
7
C
V
6
1
F
U
0
0
1
19090_210_110422.eps
110509
R
E
N
U
T
_
V
5
+
V
2
1
+
7
5
7
C
V
6
1
N
0
0
1
7
5
7
C
V
6
1
N
0
0
1
6
5
7
R
W
2
M
H
O
8
1
/
C
N
6
5
7
R
W
2
M
H
O
8
1
/
C
N
+
0
6
7
C
V
0
1
F
U
3
3
+
0
6
7
C
V
0
1
F
U
3
3
8
5
7
C
V
6
1
F
N
0
3
3
8
5
7
C
V
6
1
F
N
0
3
3
+
100UF 16V
+
6
5
7
C
0
5
7
B
F
A
m
0
0
0
2
/
R
0
2
2
0
5
7
B
F
A
m
0
0
0
2
/
R
0
2
2
1
2
4
9
0
7
R
W
0
1
/
1
5
0
R
0
W
0
1
/
1
5
0
R
0
9
5
7
C
V
6
1
U
0
1
9
5
7
C
V
6
1
U
0
1
1
E
-
R
T
D
5
0
8
7
S
A
2
5
7
U
1
E
-
R
T
D
5
0
8
7
S
A
2
5
7
U
GND
2
T
U
O
3
N
I
1
19090_211_110422.eps
110505
B
S
R
W
P
O
1
1
V
D
B
T
S
_
V
5
+
0
1
V
D
2
0
4
0
/
D
M
S
4
1
7
C
V
6
1
N
0
0
1
4
1
7
C
V
6
1
N
0
0
1
+
8
0
7
C
V
6
1
F
U
0
3
3
+
8
0
7
C
V
6
1
F
U
0
3
3
1
1
7
R
1
8
0K
1/10W 1
%
1
1
7
R
1
8
0K
1/10W 1
%
1
0
7
L
H
U
5
.
1
1
0
7
L
H
U
5
.
1
4
1
7
R
1K
5 1/10W 5
%
4
1
7
R
1K
5 1/10W 5
%
2
1
7
C
V
6
1
F
u
0
1
2
1
7
C
V
6
1
F
u
0
1
7
0
7
B
F
A
m
0
0
0
2
/
R
0
2
2
7
0
7
B
F
A
m
0
0
0
2
/
R
0
2
2
1
2
2
2
7
R
NC/10K
1/10W
2
2
7
R
NC/10K
1/10W
3
0
7
C
V
5
2
F
N
2
2
3
0
7
C
V
5
2
F
N
2
2
9
0
7
C
V
6
1
F
U
1
9
0
7
C
V
6
1
F
U
1
8
1
7
R
%
1
W
0
1
/
1
K
3
3
8
1
7
R
%
1
W
0
1
/
1
K
3
3
1
0
7
U
E
T
R
8
1
4
4
5
S
P
T
1
0
7
U
E
T
R
8
1
4
4
5
S
P
T
N
I
V
1
N
I
V
2
D
N
G
3
D
N
G
4
D
N
G
A
5
S
N
S
V
6
P
M
O
C
7
K
L
C
/
T
R
8
S
S
9
H
P
0
1
H
P
1
1
H
P
2
1
T
O
O
B
3
1
D
G
R
W
P
4
1
N
E
5
1
N
I
V
6
1
PwPd
17
0
1
7
C
V
6
1
N
0
0
1
0
1
7
C
V
6
1
N
0
0
1
2
1
7
R
%
1
W
0
1
/
1
5
K
1
2
1
7
R
%
1
W
0
1
/
1
5
K
1
3
1
7
C
V
0
5
F
n
0
1
3
1
7
C
V
0
5
F
n
0
1
3
0
7
B
F
A
m
0
0
0
2
/
R
0
2
2
1
2
3
1
7
R
%
1
W
0
1
/
1
K
2
1
3
1
7
R
%
1
W
0
1
/
1
K
2
1
9
0
7
R
%
5
W
6
1
/
1
7
K
4
9
0
7
R
%
5
W
6
1
/
1
7
K
4
9
1
7
R
NC/10K
1/10W
9
1
7
R
NC/10K
1/10W
1
1
7
C
V
6
1
N
0
0
1
1
1
7
C
V
6
1
N
0
0
1