【摘 要】
：
我厂生产的YD2—2信函过戳机,计数部分采用集成元件,计数器型号为5S4。显示部分采用八端荧光数字管,译码器也是集成元件,其型号为5Y8。为保证机器质量,在将集成元件焊接在印
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我厂生产的YD2—2信函过戳机,计数部分采用集成元件,计数器型号为5S4。显示部分采用八端荧光数字管,译码器也是集成元件,其型号为5Y8。为保证机器质量,在将集成元件焊接在印刷电路板之前,必须将集成元件逐个进行检验。对组件,如计数器、译码器、荧光数字管等焊接在印刷电路板之后,也需进行
I plant YD2-2 letter stamper, counting part of the integrated components, the counter model 5S4. Display part of the eight-terminal fluorescent digital tube, the decoder is also an integrated component, its model is 5Y8. To ensure the quality of the machine, the integrated components must be inspected one by one prior to soldering the integrated components to the printed circuit board. The components, such as counters, decoders, fluorescent digital tubes, etc. are soldered on the printed circuit board, but also to be carried out
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