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一台沙巴51cm(20英寸)彩色电视机,视频集成块BU4606B损坏,因无同型号集成块更换,故用HA11489代换。 HA11489与BU4606B同是视频放大集成块,HA11489为(42)引脚,BU4606B为(40)引脚。虽两者的引脚数不一样,但其内部功能基本相同。且该机的印制线路板完全是按HA11489集成块的连接方式设计的。即印制线路板上也有(42)个插脚孔位,原机在使用BU4606B集成块时,只使用了其中的②～(41)脚。所以,
A Sabah 51cm (20 inch) color TV, video block BU4606B damage, because there is no replacement with the same type of manifold, it replaced with HA11489. The HA11489 and BU4606B are video amplification integrated blocks, the HA11489 is (42) and the BU4606B is (40). Although the two pins are not the same, but its internal functions are basically the same. And the machine’s printed circuit board is completely based on HA11489 integrated block connection design. That printed circuit board also has (42) pin holes, the original machine using the BU4606B manifold, which used only ② ~ (41) feet. and so,