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Probelm testing 74 ICs on VP-290 Reply  
handsome
Bernardo
 Hello,

I"m having a problem testing a SN74HC74N IC. When I open the test page, the software says "When testing 14 pin devices connect a line between P27 and P28".

The problem is, if I do connect a line between P27 and P28 the test FAILS. If I dont connect the line the test passes. The IC is brand new and working, so I know it should pass the test, but it doesnt pass if I connect the line as instructed by the software.

What is wrong here??

[ The message is modified by Bernardo ]
[ The message is modified by Bernardo ]
Go back list [ Posted:2021-03-12 08:17:00 ] Edit Administer top
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