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一、用CD4011直接代换TC4011BP 一台日立1201型31cm(12英寸)黑白电视机在选频时屏幕上不显示调谐指示针(该指示针是一条直立黑线),故不能转换频道。经查是TC4011BP集成块损坏。由于此块是日本东芝公司生产的,市面上很难买到,经查阅有关资料,发现CD4011与TC4011BP的内部结构完全一样,故邮购一块CD4011来代换TC4011BP一举成功,使闲置半年多的电视又能正常收看了。
First, the CD4011 direct substitution TC4011BP A Hitachi 1201 type 31cm (12 inches) black and white TV in the frequency selection does not display on the screen tuning indicator (the indicator is an upright black line), it can not switch channels. The investigation is TC4011BP manifold damage. As this block is produced by Toshiba Corporation, it is difficult to buy on the market. After reviewing the relevant information, we found that the internal structure of CD4011 and TC4011BP is exactly the same. Therefore, the mail order of a piece of CD4011 to replace TC4011BP succeeded in making television more than six months Can watch normally.