不 带载输出正常,带载后输出4A左右电流,但是一会就发现出电感的呲呲声,然后电流突然就变小了,到3A。观察后发现有个似乎是变压器的器件外封装裂开了,就是6个腿封装,高出印制板的,跟电感差不多高度那个小的方方的器件,请问有78020内部电路图或者器件图么?想问问那个器件是什么器件,打算直接换此器件。
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