akira LCT-20CHST, Руководство по обслуживанию

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Model No.: LCT-20CHST
Version: 1.0
Can turn down horizon and vertical scan part output H/V sync signal to Scaler
128K Flash Memory inside, support program on line
Automatic Y/C signal identify
TDA15021H pin function:
Pin Pin name Pin function
1 VSSP2 Grounding
2 VSSC4 Grounding
3 VDDC4 +1.8V
4 VDDA3 +3.3V
5 VREF_POS_LSL +3.3V
6 VREF_HPL 0V
7 VREF_HPR +3.3V
8 VREF_HPR 0V
9 VREF_POS_HPR
+3.3V
10 XTALIN Crystal oscillator input
11 XTALOUT Crystal oscillator output
12 VSSA1 Grounding
13 VGUARD/SWIO Protecting voltage input or I/O
14 DECDIG DECDIG signal input
15 VP1 +5V
16 PH2LF The second grade horizontal phase lock filter
17 PH1LF The first grade horizontal phase lock filter
18 GND1 Grounding
19 SECPLL SECAM PLL decouple
20 DECBG Inside reference voltage decouple
21 EWD/AVL VDD5A voltage input
22 VDRB Tv vertical sync signal output
23 VDRA Vertical sync output
24 VIFIN1 VIFinput 1
25 VIFIN2 VIFinput 2
26 VSC Outside connect vertical ramp capacity
27 IREF Recurrent input
28 GNDIF IF grounding
29 SIFIN1 SIF input 1
30 SIFIN2 SIF input 2
31 AGCOUT Tuner RF AGC control voltage output