alireza
Junior Member level 2

Dear Friends,
I have used AT73C501(ATMEL chipset solution for metering) for a power metering system.unfortunately I have faced a problem in mass production that I hope somebody here can help me to solve it.
as a matter of fact,everything was ok with the prototype and system worked without any problem.but in mass production of 50 systems,most of them doesn't work properly.
AT73C501 needs a Crystal of 3.2768MHz to operate and I noticed that the source of problem is with the Crystal. it doesn't oscilate normally but when I put probe of a osciloscope on it ,it starts oscilation and system works correctly...
Is there anybody here to direct me how to remove this problem?
I appreciate your help in advance.
I have used AT73C501(ATMEL chipset solution for metering) for a power metering system.unfortunately I have faced a problem in mass production that I hope somebody here can help me to solve it.
as a matter of fact,everything was ok with the prototype and system worked without any problem.but in mass production of 50 systems,most of them doesn't work properly.
AT73C501 needs a Crystal of 3.2768MHz to operate and I noticed that the source of problem is with the Crystal. it doesn't oscilate normally but when I put probe of a osciloscope on it ,it starts oscilation and system works correctly...
Is there anybody here to direct me how to remove this problem?
I appreciate your help in advance.