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此限时器的主要故障为人体接触控制器铁壳时,就会使高压继电器工作而曝光,致限时器失去控制作用而影响摄影工作。很多单位将此限时器更换为手按机械限时器了。现我把故障原因及修理方法介绍于下,请各单位技师、技术员同志作研究参考。(一)故障原因:1.因限时器上调时分线器的板架质量不好,易吸收潮气,致绝缘性变劣。故当人体接触控制台铁壳时(当自耦变压器电源进线之火线端接于OV端,人体对火线言即成了一不同的电位),从OV端通过R_(11)经限时器调时分线器板架,经人体而漏
The main fault of this timer is that when the human body touches the steel shell of the controller, the high-voltage relay will work and be exposed, causing the limit timer to lose control and affect the photography work. Many units change this timer to a hand-held mechanical timer. Now I put the cause of the malfunction and repair methods introduced in the next, please all units of technicians, technicians for research reference. (A) the cause of the malfunction: 1. When the timer is up, the quality of the plate rack of the splitter is poor, and it is easy to absorb the moisture, resulting in deteriorating the insulation. Therefore, when the human body touches the console iron shell (when the power line of the autotransformer power is terminated at the OV end, the human body becomes a different potential with respect to the firewire), from the OV end through the R_ (11) When the time line board rack, the body leaks