Reply 380 of 467, by appiah4
root42 wrote on 2020-07-08, 09:18:
If you leave the LM393s like that you will have a bunch of baby op amps very soon... same goes for the 74LS74 and a bunch of others...
Maybe I should leave them like this overnight? Might be profitable business!
I am sad to report that after replacing each and every one of these ICs, the distortion on digital noise remains. Which narrows my troubles down to the two things I still have not changed:
1. The DSP chip: What kind of a flashing tool do I need to reflash this?
2. C65/C68 for which I have 1000V rated capacitors instead of 50V: I know that normally higher voltage capacitors should work but 1KV vs 50V is a bit much.. I wish I had thought to order these along with the ICs, now I need to wait a couple of weeks before I can order and test replacements..
Or there is an issue with my soldering that I have not found yet. Or the board is damaged somehow.
Retronautics: A digital gallery of my retro computers, hardware and projects.