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Lwpservice manual download site
3. The black and white (B/W) television signal process Q5511 shot with the output of the black and white video signal sent by the Q5534, Q5535 and LC low-pass filter components, and then added to the IC5502 7 feet. Lwpservice manual download site
4. PAL/Y/C separation strip Y2 NTSC3.58 system input end feet PAL/NTSC3.58 color video signal by Q5521, Q5522 and Q5516 three-level buffer to enlarge digital comb filter IC5501ts35-2. GIF (124 bytes) feet (see figure 2, figure 3), the internal A/D converter converts analog signals into digital signals, and sent to the line of memory, bandpass filter, and comb filter logic circuit composed of read-only memory circuits. For PAL video signals, chroma signal phase shift 90 ° line by line, good memory, nH take line cycle time standard signal of one point, nH, will result in the first two lines of H (n - 2) and after two rows (n + 2) H three signal line (PAL delay processor need to delay two lines), for NTSC3.58 signal, chroma signal phase shift 180 ° line by line, good memory, nH take line cycle time standard signal of one point, to get a nH, the previous line (n - 1) H and a line of (n + 1) H after three signal lines (NTSC3.58 system delay processor must delay one). These digital signal into the digital comb filter, the logic circuit, image correlation for calculation, the three kinds of signal gain digital brightness signal and chrominance signal separation. Delay in the processing and storage circuit by IC5501 attending, ts09-4. GIF (120 bytes), ts18. GIF (115 bytes) feet enter SYS2, SYS1, SYS4 signal control; When the three input pins are high electricity at ordinary times, delay circuit delay 2 h; When the three input pins are low electricity at ordinary times, delay circuit delay 1 h. At the same time, IC5501 attending, ts09-4. GIF (120 bytes), ts18. GIF (115 bytes) feet input color standard cutting control signal to control band-pass filter, the transformation between the 4.43 MHz and 3.58 MHz, corresponding system to adapt to the needs of the signal processing. SYS1, SYS2, SYS4 signal in turn by the microprocessor IC1213ts36-1. GIF (124 bytes), ts36-2. GIF (124 bytes), ts36-3. GIF (116 bytes) feet of the output. The three signals and corresponding relation between formats can be found in the table 1.
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