cannibal - Just had a decoder go bad on my Snap...
Just had a decoder go bad on my Snap, is that common?
It's the 74HC138N. I started having a dead key with the key next to it registering both characters. So I would press C and nothing would happen, but if I pressed X then the characters "XC" would register on the tester. I swapped the IC with the one on the other half of the Snap and then the right side started showing issue. This was after a week of use. I have a new IC on order from Amazon but was wondering if this is common or if there's a known reason the IC may have gone bad
Solution:Jump to solution
Following up on this, the replacement IC showed up today and swapping it out fixed the issue. Both halves are operational. I ordered the ICs off of amazon, pack of 30 was less than $10 USD. Now I have way more decoder/demultiplexers than I know what to do with haha
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Unknown User•2mo ago
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Just seems so strange it suddenly happened. Entirely possible it was a manufacturer defect but who knows. If it keeps happening I'll have more data points to chase down!
Solution
Following up on this, the replacement IC showed up today and swapping it out fixed the issue. Both halves are operational. I ordered the ICs off of amazon, pack of 30 was less than $10 USD. Now I have way more decoder/demultiplexers than I know what to do with haha
Unknown User•2mo ago
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