Reference Voltage(V)
Reference Resistance(K
Ω
)
Pin Function
Without
signal
With
signal
Forward(
Ω
) Backward(
Ω
)
output
36
Digital circuit power supply
5.0
5.0
470
800
37
SECAM B-Y signal input
2.6
2.6
800
2000
38
SECAM R-Y signal input
2.6
2.6
800
2000
39
Y signal input
1.5
1.5
800
3600
40 Line
AFC
filtering
6.4
6.4
800
2000
41
External video/Y signal input
1.6
1.6
800
2000
42
Digital circuit grounding
0
0
0
0
43 PIF composite video signal
input
2.8 2.8 800 2000
44
Black level detection
filtering
3.0 2.0 800 4000
45 External chrominance signal
input
2.8 2.8 800 2000
46
Y/C circuit power supply
5.0
5.0
500
1200
47 PIF and SIF composite
signal output
4.7 3.8 680 900
48 Intermediate
frequency
locked phase loop filtering
4.4 4.4 800 2000
49
VCO and SIF grounding
0
0
0
0
50 Intermediate
frequency
VCO
8.2
8.2
550
1000
51 Intermediate
frequency
VCO
8.2
8.2
650
1000
52
VCO and SIF power supply
9.0
9.0
450
600
53 SIF signal input and
horizontal curve correction
4.0 4.0 820 2000
54
SIF smooth filtering
5.6
5.6
800
1300
55
External audio input
3.2
3.2
800
2000
56
FM DC negative feedback
1.7
1.7
800
2000