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部分遥控改装板的交流关机功能并不能完全切断交流电源,这是一个值得注意的问题。事情的经过是这样的:一次,笔者在对一台采用画佳遥控板(FJ—2508傻瓜型)改装的金凤C54Sz型彩电维修后调整时,由于没拔下电源插头(未开机)而直接将闭路信号插头插入彩电的天线插孔(开壳情况下),一不小心,闭路插头碰了天线插孔的铁屏蔽盒。只听“砰”的一声,机内主板上的保险管烧毁,甚感奇怪。因为此时并未开机且机子本身已被改成具有交流关机功能(即切断交流电源)了,怎么能有电呢?遂拔下电源插头,更换保险管后再次将电源插头照原样插入插座并用验电笔测试天线插孔的铁屏蔽盒,果然试电笔氖
Part of the remote control conversion board AC shutdown does not completely cut off the AC power, which is a noteworthy issue. Things passed like this: Once, I used to draw a good remote control board (FJ-2508 fool type) modified Jinfeng C54Sz color TV repair after adjustment, because there is no unplug the power plug (not boot) and direct The closed-circuit signal plug into the color TV antenna jack (open case), accidentally, the closed-circuit plug hit the antenna jack iron shield box. Just listen to “bang” soon, fuse inside the fuselage on the motherboard burned, very strange. Because at this time did not boot and the machine itself has been changed to have AC power off function (that is, cut off the AC power), how can there be electricity? Then unplug the power plug, replace the fuse again after the power plug into the socket as such and use Test pencil test antenna jack iron shielding box, really test pencil neon