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C T P—5904型(18英寸)彩色电视接收机为日本三洋(SANYO)电视股份公司的标淮系列机芯。它与C T P-3904(14英寸)和C-T P—6904(20英寸)为同类型机芯产品。它采用二块集成电路,其中一块为μpc1403型,它完成视频放大,色度解码、同步分离、行振荡、HKM电路(行静噪电路)、AFC电路、行激励、行一场分离、场激励等功能,是一块L S I电路(即大规模集成电路)。它的优点是外围元件比较少、功能强、调整简单、一致性好,采用晶振式的行、场振荡和数字式分频电路。由晶体振荡产生32倍行频(即500kHz)振荡信号,经32分频和二级A F C锁相(即
The C T P-5904 (18-inch) color TV receiver is the standard-set movement of SANYO TV AG. It is the same type of movement as the C T P-3904 (14 inches) and C-T P-6904 (20 inches). It uses two integrated circuits, one of which is μpc1403 type, which completes the video amplification, chrominance decoding, synchronous separation, line oscillation, HKM circuit (line squelch circuit), AFC circuit, line excitation, line a field separation, field excitation And other functions, is a piece of LSI circuit (ie large scale integrated circuit). Its advantage is less peripheral components, powerful, easy to adjust, good consistency, the use of crystal-line, field oscillation and digital frequency divider circuit. Generated by the crystal oscillation 32 times the frequency (ie, 500kHz) oscillation signal, the 32-band and two-stage AF phase-locked (ie