Best error message ever

Found on a monitor of unknown function at a Love’s truck stop

OH SNAP THE WORDPRESS MOBILE APP GLITCHED ITSELF TO DEATH WHILE TRYING TO POST AN ERROR MESSAGE ABOUT AN ERROR MESSAGE AND DID IT TWICE 😀

Tested but not tested?

I guess the Chinese quality control method of “the customer is our quality control” has been inherited by iBuyPower.

Still, they manage to be one of the very few off the shelf systems we can still buy locally that uses standard components.

Dark absorbent

I got a box of LED light bulbs at the local DumpshitMart and the first one I pulled from the box was a dud but flickered several times as I screwed it in. Strange. I suspected a bad solder joint, and noticed the bulb part felt like plastic and not glass.

I started prying on it a little and it popped off revealing the emitter board.

Interesting construction. Spring contacts are used for the capacitors, and presumably for the power input. I noticed right away that one of the power input pins wasn’t visible in its terminal.

I wonder what these regulator ICs are? No visible inductors are present (and I can’t see any signs that they used a multi layer board with a pancake inductor) so it’s not a buck converter. Might just be a linear constant current driver or something.

16 LEDs in series assuming Vf = 3.2v each would be an operating voltage of 51.2v. This would imply that either those led packages contain more than one diode in series, OR most of the voltage is being dropped by the current drivers!

The two caps behind. Strangely, once you’ve unglued the bulb, these would be the easiest caps to replace that I’ve ever seen. They’d just slide right out.

I didn’t get a picture behind but all the bulb needed was for the lead wire to be pressed back into the terminal. I didn’t have the same white silicone goop the thing was assembled with so I just used silicone gasket sealant to stick it back together and returned it to service.

I took this before gluing the bulb back on. Operating the bulb like this in an open fixture, as nice as it looked, would likely lead me to accidentally stick my fingers into it. I’m very prone to accidentally sticking my fingers and hands into the ceiling fan. I’m working on my Horrible Klutz merit badge, you see.

Interestingly this bulb has the metal heatsink cone for a base that I was used to seeing on earlier LED bulbs, it’s just covered in plastic. This kinda implies that their bulb just doesn’t dissipate much as heat and possibly that the metal core circuit board is not acceptably (or not at all) electrically isolated from the AC line voltage to allow it to safely remain exposed.

The old LED bulbs with the huge heatsink fins are noticeably few and far between, after all. They’re getting pretty dang good. Now can we have some build quality??

I love boring transmitters!

By this I mean the ones where you install it, then outside of routine maintenance, it just works and never asks for more. Boring….NVlt getting the 5.0 software update.Always move the Pusheen to the center before updating, otherwise you have to do it again. I don’t know why and I’m not questioning it. Yours doesn’t have a Pusheen on it? Uh, that’s a highly technical problem.Boring backplaneElsewhere, this Crown started losing its boringness. It started occasionally dropping output. I’ll be replacing it with a fully boring transmitter soon. I bet it’s not much more of an issue than a dried cap in the power supply.Note to self: print a Pusheen to leave on top of the new one.

Late night fun with glitches

Last night I was driving home down I-5 and the notoriously, uh, imperfect, Bluetooth connection to the stereo in my old Subaru Forester glitched out in a fabulous way leading to Kraftwerk’s Autobahn album getting played at 50% speed.

 

Ok, that was so cool I’ve gotta share. I slowed these tracks in Audacity for the same effect. Then I tried to upload them via WordPress but found it’s stuck with an 8 meg upload size limit and I don’t feel like troubleshooting that right now so I threw ’em on der aktiv-schaum. Then I googled the wordpress upload limit and…. BROKE GOOGLE.

COMPUTER MALTHUNCTION MALFUNNYTHINKIN….

Mitternacht wound up sounding like something that belongs as haunted house ambience:
http://aktiv-schaum.kg4cyx.net/Mitternacht-slowed.mp3

The title track, Autobahn, just… took on whole new dimensions of weird.

http://aktiv-schaum.kg4cyx.net/Autobahn-slowed.mp3

I was also treated to a weird stuttering flanging thing happening when I tried to play an Aphex Twin track through it, which eventually stopped as my phone simply gave up on sending Bluetooth audio. Oh well.

The hell was THAT?

At 06:15:06Z the MySQL server on this host shut down. When it came back up, it didn’t recognize the password for my database user.

 

Going back in there and resetting the password restored everything.

 

There are… pretty much no clues as to what happened in there. I’m not seeing any signs of intrusion or anything (for once!)… I’m thinking…. gremlins.

 

Carry on then.

Y A W W W W N N N N

I love Behringer. I love them so much.

why you may ask? because they make audio FULL OF SURPRISES

Plugged in power to a Eurocom SPL3220 that had been sitting on my shelf a few months and it went snap! tweet! and went dark. These DECON capacitors are lovingly referred to as “rat poison caps” after the D-Con brand pest control products, and they are pure garbage. These are just used for dc blocking on the audio inputs and outputs though.

 

So is this some kind of weird joke or… just dumpshit? CoolAudio is a company under Behringer’s parent “Music Group” company and their website proudly advertises a bunch of chips they market as being functionally identical to a number of other audio ICs by Cirrus Logic, THAT Corporation, etc… but probably just super low quality dumpshit they had fabbed up to compete only on the basis of price.

I’m guessing the pop and screech came from one of the “CapXon” brand Taiwanshitlytics on this SMPS board but it’s only Monday and I’m already tired of this shit ok

 

 

 

 

Shitpost Multiball

The Simpsons Pinball Party has not exactly proven itself to be a very reliable game; I’ve never played one where everything is fully functional. Malfunctions sadly seem to crop up with the garage door and mini playfield, and failure of these make most of the game inaccessible! No multiball…. On this one the upper left flipper didn’t work, so there was no way to shoot anything up there.

Just for the record, the way you have to get to multiball is to get the ball up there (open the garage door then shoot the ball in there) and the VUK (vertical up kicker) inside will send the ball to the left flipper on the mini playfield. From there, pass it directly to the right flipper or use the orbit at the back to send it to the right flipper, then shoot the lock ramp which will put it in the couch.

Yes, this is as challenging as it sounds!

So is maintaining an old RVR / Armstrong tube transmitter. Cut to avoid page spam…

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