Aneng 8008 fail :))
Good day folks. This should definitely be in the Off-topic category because it's just so stupid 
Today I was messing around with a PIR sensor for a large outdoor LED floodlight which doesn't work. As always, I was using my Aneng 8008, since this shop gave me bupkis to work with...damn cheapskates....AAAANYWAY....and I first wanted to make sure there's line voltage actually coming into the damn thing. There's a capacitive dropper PSU commonly found in small low power electronics like these. Put my probes on the lives wires, numbers jumped around a couple of times but that was it - no power at all. Ok, simple job, probably a bad mains cable I thought. Unplugged the thing, set the good ol' Aneng to ohms and probed between each prong of the AC plug and its respective wire on the board....0 ohms...WTH ?!
Plug it back in and probed again thinking perhaps the socket is a little loose and didn't make contact. Again: no matter how much I jimmy-jammed those probes on those wires, I got nowhere close to a correct reading. Wiggled the plug a couple of times, stil nothing !
Unplugged it again and this time poked my probes right into the 230v socket holes...gave them a good jiggle, numbers jumped around but same story...did my meter just die on me ?! Grabbed a battery I had on my desk, probed it: nope - 9v right there...what gives ? Imagine this thing puzzling me for 5-10 minutes to the point where I hopped on Ali ready to order a new meter...until I noticed the little blue select/light button to the left of the dial and gave it a push. The display switched to AC RMS and that's when it occurred to me......Danny you're a genuine dumbass !
The strange thing is that I could SWEAR I measured AC before and the meter switched to AC automatically, so I was expecting it to do it again here, but apparently my memory is a bit fuzzy...too much solder smoke >_> I never had to use that button very often, given that I mostly work with DC sh!t, but this one time I needed it, I forgot it was there...getting old
Today I was messing around with a PIR sensor for a large outdoor LED floodlight which doesn't work. As always, I was using my Aneng 8008, since this shop gave me bupkis to work with...damn cheapskates....AAAANYWAY....and I first wanted to make sure there's line voltage actually coming into the damn thing. There's a capacitive dropper PSU commonly found in small low power electronics like these. Put my probes on the lives wires, numbers jumped around a couple of times but that was it - no power at all. Ok, simple job, probably a bad mains cable I thought. Unplugged the thing, set the good ol' Aneng to ohms and probed between each prong of the AC plug and its respective wire on the board....0 ohms...WTH ?!
Plug it back in and probed again thinking perhaps the socket is a little loose and didn't make contact. Again: no matter how much I jimmy-jammed those probes on those wires, I got nowhere close to a correct reading. Wiggled the plug a couple of times, stil nothing !
Unplugged it again and this time poked my probes right into the 230v socket holes...gave them a good jiggle, numbers jumped around but same story...did my meter just die on me ?! Grabbed a battery I had on my desk, probed it: nope - 9v right there...what gives ? Imagine this thing puzzling me for 5-10 minutes to the point where I hopped on Ali ready to order a new meter...until I noticed the little blue select/light button to the left of the dial and gave it a push. The display switched to AC RMS and that's when it occurred to me......Danny you're a genuine dumbass !
The strange thing is that I could SWEAR I measured AC before and the meter switched to AC automatically, so I was expecting it to do it again here, but apparently my memory is a bit fuzzy...too much solder smoke >_> I never had to use that button very often, given that I mostly work with DC sh!t, but this one time I needed it, I forgot it was there...getting old
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