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Old 28 December 2021, 07:49   #163
Mathesar
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Join Date: Aug 2014
Location: Netherlands
Posts: 559
Quote:
Originally Posted by opivy224 View Post
Hello, I put this together and it worked once.. but then stupid me cleaned flux off with 90% IPA and may have reinstalled it before it had all dried under the CPU socket. This time I got a black screen and now it won't work at all. What components should I start troubleshooting? Replace CPU maybe?
Sorry to hear that! I don't think something is really broken. I would rather think that some conducting stuff got stuck underneath chips, between pins, etc. The circuitry around the the 74HC(T)4046 is the most sensitive to that. I would recommend a second, thorough cleaning. Let it dry and try again!
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