Haier TDVCF2016, Service Manual

Page: 31 / 46

Color Television Model
：
20S62(TDVCF2016)
(8) switching of CVBS signal and sound signal IC: MM1492
Pin definition Voltage(V) remark
1
V1-V
4.86
Front AV VIDEO input
2 V1-L
0.039 Front AV AUDIO L input
3 V1-Y
4.9
Not used
4
V1-R
4.3
Front AV AUDIO R input
5 V1-C
4.85 Not used
6 S1 0.023
Not used
7 V2-V 4.9
DVD CVBS signal input
8
V2-L
4.33
DVD AUDIO L input
9
V2-Y
4.89
Not used
10
V2-R
4.33
DVD AUDIO R input
11 V2-C 4.85
Not used
12 S2 0
Not used
13
V3-V
5.33
VCR CVBS signal input
14
V3-L
4.32
VCR AUDIO L input
15
V3-R
4.32
VCR AUDIO R input
16
STV-V
4.86
Rear AV VIDEO input
17 STV-L 0
Rear AV AUDIO L input
18 STV-R 4.33
Rear AV AUDIO R input
19 Yin2 4.9
Not used
20
ADR
0
GND
21
Cin2
4.84
Not used
22
GND
0
GND
23
Vout2
5.21
CVBS output to VCR
24 Rout2 4.2
AUDIO R output to VCR
25 Cout2 3.4
Not used
26
Lout2
4.17
AUDIO L output to VCR
27
Yout2
3.4
Not used
28
GND
0
29
SDA
3.34
The first bus
30
SCL
3.62
The first bus
31
MUTE
0
Not used
32 Cin1 4.84
Not used
33 GND 0
34
Yin1
4.89
Not used
35
Rout1
4.17
AUDIO R output to TDA7449
36
Lout1
4.16
AUDIO L output to TDA7449
37
Vout1
5.2
CVBS output to LA76834
38
BIAS
4.39
39 Yout1 3.4
Not used
40 Vcc 8.92
SW +9V
41
Cout1
3.41
Not used
42 MTV-R 4.33
TV AUDIO signal input
43
MTV-V
5.34
TV CVBS signal input
44
MTV-L
4.34
TV AUDIO signal input
3254