7.
Circuit Diagrams and PWB Layouts
Mono Carrier: Audio - BTSC Stereo Decoder
CTRL AMP
L-R
VOLUME
LEFT
CTRL
FIL
REF
AND
TONE
RIGHT
CTRL
TONE
LEFT
CTRL
NC
NC
VOLTAGE
DET AND
DEMATRIX
+
NC
MODE
SELECT
TRANSC
INPUT
SELECT
STEREO DECODER
AUTOMATIC
RIGHT
CTRL
LOGIC
VOLUME
I2C
VOLUME AND
LEVEL CONTROL
L+R
SUPPLY
RES
4V1
4V1
0V0
4V1
1861 B5
1883 E4
2861 B4
2862 C2
2863 C3
2864 B5
2865 B5
2866 D7
2867 D7
2868 D7
2869 D8
2870 B8
2871 B7
2872 B7
2873 B7
2874 D5
2875 D5
2876 B6
2877 D5
2878 D5
2879 D4
2880 D3
2881 D7
A6
3V3
4V1
4V1
4V1
4V1
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
A
4V1
4V1
6V7
A4
6V6
A6
4V1
4V1
RES
0V0
4V1
RES
RES
B
C
D
E
F
G
A
B
C
D
E
F
G
4V1
4V1
4V1
4V1
2882 D6
2883 E4
2884 B4
2885 B4
2886 E2
2891 B2
3861 D6
3862 C4
3863 D3
3864 D3
3865 F4
3866 E4
3867 B5
4852 D8
4861 E8
4863 B8
4865 E8
5861 E4
5862 F9
7861 C4
4V1
1V1
4V1
0V
AUDIO - BTSC STEREO DECODER (ECONOMIC)
0V0
RES
4V1
A7
4V1
4V1
4V1
0V0
4V
3V3
4V1
0V0
A7
A1
RES
4V1
4V1
8V1
8V2
4V1
0V0
4V1
0V0
0V0
A4
A4
470u
2883
2885
220n
100u
2875
1K2
3863
1883
1
4n7
2879
A2
A5
4u7
2876
2878
2863
1u
2874
100u
2882
4852
4861
47n
2870
100n
2886
2871
150p
VIR
24
VREF
27
100R
3865
44
OUTL
16
OUTR
18
RFR
7
SCL
40
SD
A
38
13
TC1L
TC1R
21
TC2L
14
20
TC2R
TW
30
11
VA
L
23
VA
R
VCAP
28
VCC
41
VIL
10
CPH
42
CSS
6
31
CW
DGND
37
35
FDI
FDO
33
LIL
8
LIR
26
LOL
9
25
LOR
MAD
39
1
12
17
22
34
TDA9853H
7861
A
GND
36
15
BCL
BCR
19
BPU
32
CA
V
29
CER
43
CMO
5
COMP
4
CP1
3
CP2
2
2867
3n3
10u
5861
4865
2891
100n
150p
2868
2u2
2884
3K3
3867
2873
2u2
47n
2869
10u
2877
4863
2881
CSB
1861
514K5
5862
10u
15K
3862
100R
3864
3n3
2872
2u2
2866
2864
2u2
A4
2u2
2862
A3
100K
3861
22n
2880
2u2
2865
3866
100R
SDA
SCL
+8V
Main_OutL
R1_IN
L1_IN
AM_FM_MONO
Main_OutR
220n
2861
3139 123 5802.1
E_14560_007.eps
150304
A4
0.5V / div DC
1ms / div.
A5
0.5V / div DC
1ms / div.
Содержание L03.2L AA
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