vinodquilon
Member
Look at two attachments...
In the circuit 4017 doesn't like its home place.
When I changed its place from circuit IC socket to a breadboard and fed its input &
supply directly from corresponding IC socket in PCB (by tapping upper socket pins through
simple wire strips) ,I got output at pin 1.
But when I return IC back to PCB socket from breadboard, I didn't get output at pin1!!!
I am sure there would be no problems with IC and socket. Also all inputs to 4017 was correctly
there.
Does there exist any interferences from neighboring components as 4017 is a CMOS IC ?
In the circuit 4017 doesn't like its home place.
When I changed its place from circuit IC socket to a breadboard and fed its input &
supply directly from corresponding IC socket in PCB (by tapping upper socket pins through
simple wire strips) ,I got output at pin 1.
But when I return IC back to PCB socket from breadboard, I didn't get output at pin1!!!
I am sure there would be no problems with IC and socket. Also all inputs to 4017 was correctly
there.
Does there exist any interferences from neighboring components as 4017 is a CMOS IC ?