You should show how to do a "contact tension testing". If you measure the milliohms from the pcb pad#1 to pcb pad#2 to measure how much the IC socket his adding resistance. Often sockets will add graphic "static" to the visual graphics which look like particles of static small dots. I have heard you have to use Silver solder because the IC sockets work better than using 60% TIN and 40% Lead.
That would be a good test for sure! Yes bad connections can cause all kinds of graphic issues. You have to be careful when troubleshooting to make sure you are dealing with a bad connection or bad part. I never had a problem with 60/40 solder. I've heard the same about silver and actually bought a roll with 2% silver and I didn't notice any difference. I could of been the brand or maybe not enough silver to make a difference. I want to try again someday with the silver.
@arcadelaboratory you tin the IC chips legs with 100% silver solder so the IC chips legs don't get oxidation in the IC sockets causing intermittent graphic problems like artifacts and anomalies in the graphics.
I don't try to tin IC legs. Most of them wouldn't solder well unless they were like new still. I just clean them really good no matter what platting comes off. Maybe one of those solder pots would be good for that though because all you have to do is dip them. I'll try it if I ever get a soldering pot.
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You should show how to do a "contact tension testing". If you measure the milliohms from the pcb pad#1 to pcb pad#2 to measure how much the IC socket his adding resistance. Often sockets will add graphic "static" to the visual graphics which look like particles of static small dots. I have heard you have to use Silver solder because the IC sockets work better than using 60% TIN and 40% Lead.
That would be a good test for sure! Yes bad connections can cause all kinds of graphic issues. You have to be careful when troubleshooting to make sure you are dealing with a bad connection or bad part. I never had a problem with 60/40 solder. I've heard the same about silver and actually bought a roll with 2% silver and I didn't notice any difference. I could of been the brand or maybe not enough silver to make a difference. I want to try again someday with the silver.
@arcadelaboratory you tin the IC chips legs with 100% silver solder so the IC chips legs don't get oxidation in the IC sockets causing intermittent graphic problems like artifacts and anomalies in the graphics.
I don't try to tin IC legs. Most of them wouldn't solder well unless they were like new still. I just clean them really good no matter what platting comes off. Maybe one of those solder pots would be good for that though because all you have to do is dip them. I'll try it if I ever get a soldering pot.