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Missed Call Alert is locked up

机译:未接来电提醒已锁定

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Both myself and a friend have constructed the Phone/Fax Missed Call project and both of us are having identical problems.When powered up,we get a constant call alert signal.The reset switch discharges the capacitor but has little change on the output from pin 10 on the flipflop,inputs from pins 5 & 8 are as per the article but there is a constant 6.48V on pins 9,6 & 10.There is also a 5V drop on the 100 OMEGA resistor at the input.
机译:我自己和一个朋友都构建了“电话/传真未接来电”项目,我们两个人都遇到了相同的问题。加电时,我们会收到一个持续的通话警报信号。复位开关使电容器放电,但引脚输出的变化很小触发器上为10,引脚5和8的输入与文章一致,但引脚9,6和10上的电压恒定为6.48V。100OMEGA电阻的输入端也有5V的压降。

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