4 ms·
It's good that you mention it, but it shouldn't deter anyone really interested. The power quickly dissipates (over the course of minutes), but you should short
by bartvk 6y ago
It's good that you mention it, but it shouldn't deter anyone really interested. The power quickly dissipates (over the course of minutes), but you should short it with a resistor before working on it, of course.
- hyperman1 6y agoDon't bet your life on minutes. As a 10 year old kid, I had an old (tube) TV that had been standing on a table for months. I wanted to unsolder some component out of it, and thought it should be safe by now. But as an extra safety measure, I decided to short the big capacitors with my metal screwdriver. Most were as dead as can be. One however, decided to surprise me with a big arc/flash that scared me stiff.
- jmrm 6y agoI had the same experience as a child but with an old camera flash. While cutting a big capacitor I accidentally shorted both of the terminals. Since them I have a lot of respect to electricity.
- myself248 6y agoRight, because a CRT TV is basically an enormous Leyden jar. You could've also imploded it and sent glass flying, too. None of that applies to LCDs, which are phenomenally safe to work on.
- lmilcin 6y agoThat may be true MOST of the time. The real issue is that SMPS are very complex and you are more likely to just cause more boom. Even probing the SMPS requires a lot of knowledge and you can easily stop vital signal that is critical for controlling the circuit and then stuff is flying around at high speeds.
- bartvk 6y agoNot all of them. The Apple stuff, I agree with you.