Specifications

Circuit Diagrams and PWB Layouts
EN 37LC4.1A AA 7.
Audio Amplifier (2x5W) (20 & 23 inch)
FROM1,2-1200
INVERTER PANEL
MUTE NC
IN2
IN1
VCC
PW GND
ST_BY
OUT2-
OUT2+
OUT1-
OUT1+
SGND
AUDIO AMPLIFIER (2x5W) (FOR 20 & 23 INCH)
*EMC
(10V)
*EMC
TO 1107 OF SIDE AV
FROM 1706 OF TV+SCALER BD
SCREW MOUNTING HOLE
EMC
EMC
4V5
3V3
2V8
2V8
4V5
3V2
4V5
4V5
1V4
1V4
5V7
5V7
5V7
5V7
5V7
5V7
11V2
12345678
12345678
A
B
C
D
E
A
B
C
D
E
1703 A1
1704 C8
1706 D1
1710 E1
2703 D5
2712 B4
2713 B6
2714 B7
2715 B8
2718 C4
2719 B7
2741 B5
2742 C5
2746 E5
2747 E1
2748 E1
3701 E3
3702 D4
3706 D5
3714 B4
3715 B4
3726 C4
3727 C4
3744 D5
3746 C5
3747 D3
3748 D4
3749 E2
3750 D5
3751 E5
4710 B1
5709 D7
5710 D1
7703-1 D4
7703-2 E3
7709 C6
F702 B2
F703 C2
F704 D2
F705 E2
F706 E2
I701 B1
I702 B1
I703 D3
I704 D5
I705 D4
I706 D5
I707 C8
I708 C8
I709 B4
I710 C8
I711 C8
I712 B5
I713 D5
I714 C8
I718 C4
I719 C5
I728 D6
TDA 7297D
L
10K
3706
5709
P_GND
5710
2715
470u 16V
2748
470p
P_GND
470p
2747
TYPE
1710
I714
4710
I710
I711
I708
I706
I707
I704
I703
I705
I701
I702
P_GND
4
5
F705
1706
1
2
3
P_GND
F704
F706
AUD_SUP
F703
1703
1
2
1
2
3
4
5
P_GND
1704
3K3
3701
AUD_SUP
AUD_SUP
3702
3K3
I719
AUD_SUP
I718
470p
2742
1u0
2718
3727
1K8
P_GND
8K2
3726
2713
100n
2719
P_GND
AUD_SUP
16V
P_GND
100n
AUD_SUP
2714
470u
10K
10K
3749
3747
7703-2
BC847BS
3751
I728
6K8 1u0
10V
2746
6K8
3750
3748
10K
BC847BS
7703-1
10K
I712
I713
3746
I709
F702
10K
3744
2741
13
12
21
P_GND
470p
5
4
3
2
19
1
18
17
16
15
14
Φ
AMPLIFIER
POWER
20 11 10
9
8
7
6
7709
2712
1u0
1K8
3715
8K2
3714
2703
16V
10u
R
STANDBY
MUTE
E_14520_017.eps
240904
3139 123 5883.1
50mV / div AC
2ms / div
F702
50mV / div AC
2ms / div
F703
200mV / div AC
2ms / div
I707
200mV / div AC
2ms / div
I711