> I have basically no manufacturing experience, I should say. The board
> had a soldering problem - poor preheating. Small stuff was soldered OK,
> but (a lot of) physically large parts were underheated, and soldering
> was poor. Ditto for the earth line, and thick tracks. So far so good.
> When I reheated these joints, they started bubbling, and continued
> bubbling. They would spit solder away on occasion. I had to be careful
> not to overheat compontents, But this would continue for 30 secs on a
> pin, and I gave up before it did. Certainly more than flux.
> What's going on?? Implications??
Seems poor soldering/poor quality solder. There is no best solution than suck the
old
solder and apply new solder. This is a very common problem in Brazil with computer
monitors made by TCE here.
http://www.pinball-taito.com.br/amiga/howtofix.htm will show you some examples of
"good" TCE soldering job ;o)
Greetings from Brazil!
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