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目前从国外进口的电视机品种较多,各公司在电路设计上均具有自己的特色,但是小屏幕普及型电视机的设计都以成本低,性能稳定可靠为宗旨. 索尼公司TV-122CH12英寸黑白电视机,具有电路简单、调整方便、成本低、图象稳定等特点.该机采用了十六个晶体管,十七个二极管及二块集成电路,除伴音与场扫描电路采用集成电路外,其他都用分立元件.整机元器件的数量对可靠性来讲是一个重要因素,在严格筛选元器件的前提下,元器件数量少,既提高可靠性,又降低了成本.以下对该机电路进行分析讨论.
At present, there are many TV sets imported from abroad, and all the companies have their own characteristics in the circuit design, but the design of small-screen universal TV set aims at low cost and stable and reliable performance. Sony TV-122CH12 inch black and white TV with a simple circuit, easy adjustment, low cost, stable image, etc. The machine uses a sixteen transistors, seventeen diodes and two integrated circuits, in addition to audio and field scanning circuit with integrated circuits, the other All with discrete components. 整机 components in terms of the number of reliability is an important factor in the strict screening of components under the premise of a small number of components, both to improve reliability and reduce costs. The following on the circuit For analysis and discussion.