Haier 21F99, Руководство по обслуживанию

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Reference Voltage(V)
Reference Resistance(K
Ω
)
Pin Function
Without With
Forward(
Ω
) Backward(
Ω
)
signal signal
7 IF signal input pin 2.0 2.0 680 2000
8 RF AGC output 6.6 4.0 680 2000
9 IF AGC filtering 5.2 4.1 760 2000
10 Color demodulation APC filtering 2.4 2.4 750 3000
11 4.43MHz crystal oscillator 3.5 3.5 820 3000
12 Y/C circuit grounding 0 0 0 0
13 Analog RGB and AKB mode
alternating
0 0 720 650
14 Analog R signal input 2.7 2.7 800 3000
15 Analog G signal input 2.7 2.7 800 3000
16 Analog B signal input 2.7 2.7 800 3000
17 RGB(image and message
circuit) power supply
9.0 9.0 450 600
18 R signal output 3.0 3.0 760 1500
19 G signal output 3.0 3.0 760 1500
20 B signal output 3.0 3.0 720 1400
21 ABCL control pin 5.6 5.6 820 2000
22 Field sawtooth wave forming 4.1 4.1 750 2000
23 Field feedback signal 5.0 5.0 820 2000
24 Field driving signal output 0.9 0.9 720 900
25 Field AGC 1.8 1.8 800 2000
26 Bus clock signal 5.0 5.0 720 15000
27 Bus data signal 5.0 5.0 720 15000
28 Deflection circuit power supply 9.0 9.0 450 600
29 PAL/NTSC identification signal
output
SECAM identification signal input
1.5 1.5 800 2000
30 Line feedback pulse input 0.6 0.6 780 2000
31 Composite synchronizing pulse
signal output
4.5 4.5 780 2000
32 Line driving signal 2.7 2.7 640 680
33 Deflection circuit grounding pin 0 0 0 0
34 Sandcastle pulse input 1.5 1.5 820 2000
35 Video switching signal output 3.1 3.1 750 1200
36 Digital circuit power supply 5.0 5.0 470 800
37 SECAM B-Y signal input 2.4 2.4 800 2000
38 SECAM R-Y signal input 2.4 2.4 800 2000
39 Y signal input 3.1 3.1 800 3600
40 Line AFC filtering 6.6 6.6 800 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 3.3 3.3 800 2000
44 Black level detection filtering 2.3 2.3 800 4000
45 External chrominance signal input 2.9 2.9 800 2000
46 Y/C circuit power supply 5.0 5.0 500 1200