#desoldering

[ilmuteknikidposts-blog]

Apa Itu Soldering Dan Desoldering? Berikut Ulasannya

Dalam rangka pembuatan komponen elektronika, Anda wajib tahu apa itu soldering dan desoldering. Pasalnya, kedua hal tersebut merupakan langkah penting pada saat hendak menghubungkan komponen ke sirkuit elektronika. Sebagai informasi, solder sendiri merupakan alat yang digunakan untuk menyambungkan komponen dengan rangkaian sirkuit. Proses solder yang baik menentukan apakah komponen bisa berfungsi…

[sorenstore]

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[love-fireflysong]

Okay, so a couple of summers back both my PS4 controllers started getting the ever annoying stick drift (my silver on the left stick and blue on the right hilariously enough). And while I got a new controller in to replace it as a bday present, I never actually tossed either of them. Mostly because they were still usable as back ups in certain games. Like my blue was awful in any game that used camera controls, but in a game or platformer like crash it worked just fine, while the other was fine in any 3d game but in a 2d style then movement was almost impossible (like I still remember jumping over a gap only to lose my jump momentum half way through and falling to my death).

But that brings me to today. In my travels of trying to fix my PS2 controller hilariously enough, I found out that you can actually buy replacement joystick pieces and just replace them yourselves. Assuming you have a soldering gun and equipment of course.

So I got a couple of those parts and ordered a little soldering kit online, and I'm all ready to try and see i can't get my controllers working back at 100% again.

Wish me luck!

[cultreslut]

im in her insides

[pc-98s]

as if i need more projects, i bought a panasonic rq-339 tape player at the antique store and it doesn't work so now i'm going to end up putting in the effort to fix it

[diyelectricaltech]

YIHUA 938D Portable Tweezers SMD Soldering and Desoldering

[713-4th-ward-g]

.

[sunlightbouquet]

accidentally broke something in an attempt to fix it, my fingers are covered in burns, and i probably inhaled enough fumes to kill a small rodent maybe my life will turn out okay. most fun i've had in ages. should turn on the lil fume thing next time though probably

[muesli-command]

I hate solder, solder hates me.

we destroy each other's health mu-tu-ally.

[yee-haw-wizard]

god the fear of doing something imperfectly is absolutely paralyzing today lads

[pcbsino-com]

blog 2023 04 13 hot air desolder burn wood

[kremlin]

after many years my old company has finally allowed people back into the office, haha, not to go to work, no no, solely to collect their belongings from their desks. i picked up my stuff and remembered what a psycho i was about my office back then, let me show you..

i set up an old VT-420 on a side of my desk to read my email on (to flex my computer dick) which is unfortunately a bit too yellowed now for me to post exposed but hilariously enough i did take the chance to fix the faulty RS-232 chip in it and i no longer get a bunch of keystrokes interpreted as ŸŸŸŸs randomly. the fix was great too, instead of having to throw the whole thing out like you'd need to today, i literally just had to pull the PTH chip out of its socket, didn't even need to desolder. nor throw the old one out. i blasted it with a blowtorch for about half a second and it's fine now.

(it is amber by the way, which is the best color)

the keyboard is another story, i think a lot of like, entry-level vintage computing people get this concept that every old keyboard is some treasure, and boy let me tell you, some of them make you want throw up, like the vt420's:

you'll have to take my word that the typing experience is pure ass, but if you look at this fucker for more than two seconds your blood pressure will start to raise. and i'm not just talking about the euro return key. where is the super key? and what is going on left of 'a'? did they decide to solve the age-old "caps lock vs ctrl" debate by putting both of them there (??) what the fuck is going on north of the arrow keys?!?! and even further north, 'help' is funny enough on its own, the fact its next to DO, a truly existentially puzzling key, makes it that much better. why is DO so wide?? why are there so many F keys? and apparantly 20 F keys wasn't enough, they had to go on and invent "PF" keys above the numpad. and it doesn't stop there..

the pre-USB world was pretty nuts, but most keyboards still had sane connectors like DE-9's, PS/2, DINs, etc, but not this one

it uses, a, uh, looks like an ethernet cable. weird. but look closer. six pins. AND, big honking square to key it specifically and make it incompatible with the very-similar already-existing 6P6C specification (why?) anyways, that's enough of this crap, moving on

this is the keyboard for my lisp machine, the famous "space cadet keyboard", i get so many fucking emails about this keyboard, christ almighty. people trying to buy it from me, it's a shame, the machines don't boot without them so seperating them to satisfy reddit guy wish fulfillment breaks my heart. it's a lot better. it's from an era where a good computer would set you back half a million and the hardware reflects it. honeywell made it, it's "solid state" insofar as that makes sense for a keyboard, uses the hall effect. there weren't any rats at my office but just in case i seem to have taped something to the underside:

lol. now for accouterments to cover those hideous eggshell white walls:

in order, openbsd, you know it baby, middle is a weird polish promo for the holy mountain, the last thing was a joke whose meaning has been lost to time. chicken and turkey!

i seemed to have been working on some very bizarre electronics projects, personal, during my workday:

god, what the fuck was this?

oh, duh, it's bort's hat. (??)

some reading materials. K&R C is a first edition, somewhat rare. the 9front manuals:

classic, natch. and a huge gear that's clapped

that's it. that's my office apparently.

[foone]

Imagine a butch who dates robotgirls and she's got the belt and carabiner "ready for business" look down, but all the stuff hanging from it is reverse-engineering tools.

A full set of screwdriver bits (including security torx and those weird tri-wing Nintendo ones), assorted spuders, those little rubber suction-cups you use to remove LCDs, a line flashlight, macro lenses, IPA wipes, chip pullers, portable hot air rework gun and a pinecil soldering iron, desoldering braid, a wide variety of ESD-safe tweezers, and one of those anti-stack wristbands but on a retractable lead like it's for walking a dog.

She left her backpack at home but it's got a stereo inspection station, a full set of lockpicks (including those tubular lock impresioning ones), and an aging ThinkPad with a bunch of USB adapters: every memory card format you can imagine, all the major hard drive interfaces, and even 3.5"/5.25" floppy disks thanks to a 3D printed enclosure with a greaseweazle flux imager (the Applesauce stays at home connected to her Mac Mini). A USB optical drive that can read and burn all the cd formats, and a as small plastic case of some blank CD-Rs, DVD-Rs, and Blu-rays. A bunch of USB flash drives, some blank, some preflashed with assorted tools and marked with little keychain labels: some linuxes, a warezed all-in-one windows installer, live distros for tails and kali and partionmagic and DBAN.

She's ready for anything.

[boarcha]

my Log : 01.05 update

failed authorization for 3 hours and then shorted something.now there is white smoke coming whenever i power on i dont think it is supposed to do that

also learned my motherboard doesnt have any schematics available online so erm......

bought a 23€ ylod ps3 so i can repair it so then I can play mk9 on it. this is my Log

[oldguydoesstuff]

Bare CPU Printed Circuit Board for the Alpha NT XL366 workstation I designed back in 1995 or so. This was an obscure model of an obscure product line, made by a company (Digital Equipment Corp.) that is now itself obscure. To be honest I don't even remember much about this machine now.

What I do remember is the HUUUUGE fight I got into with our Signal Integrity team while I was designing this, over decoupling capacitors.

Decoupling caps are small components that hold a charge to help even out power when a circuit is active. This board featured hundreds of them, smaller than a grain of rice (see photo comparison of mounting pads vs rice grain below).

Our Signal Integrity team was tasked with making sure everything was electrically stable, so they required many hundreds of these to be added to the board, based on power simulations they did. Trouble was, they wanted so many, we couldn't even build the board.

My job as the Systems Engineer here was to meet the requirements from the SI team, but also from manufacturing, and the requirement that my PCB layout techs don't go insane trying to place and route the board. SI really only cared about signal quality, so they would not relent, and I ended up getting shouted at at one point by a junior SI engineer who was also under a lot of stress, when I said "There are different schools of thought on this.." and he screamed THERE ARE NOT DIFFERENT SCHOOLS OF THOUGHT ON THIS!!

It got to the point where the product was not going to get built, because we just couldn't fit like a thousand of these tiny caps on the board, we needed to ditch at least 25% of them to have a hope. The models were the models though, and you couldn't argue against them.

But then my boss got a genius idea. What if we could prove the simulation models were too conservative? We came up with an experiment where we would remove caps from an older system and measure the power supply noise, to see how many caps could be taken off before the system became unstable.

Me and the junior SI engineer were tasked with doing this experiment (later deemed The Decapitation Project), so we grabbed a Tektronix scope and Metcal soldering station and headed over to this abandoned lab we had in our old Maynard headquarters, a now creepy attic space on the 6th floor of an old mill building. Here were a few older Alphastation 3000 workstations we built years earlier, working but waiting to be recycled.

We had this special program that would thrash the CPU within an inch of its life, to put a big demand on the power supply system. While this was running, the SI engineer measured the power quality, while I proceeded to (very carefully to avoid short-circuiting the system) actually desolder caps from the board while the workstation was running.

We managed to get about 1/3 of them off before there was any noticeable effect, and we found one specific type of cap was not doing much of anything at all. We took the data back to the head of the SI team, and he finally relented and let us remove several hundred capacitors. (He also buried the report and data I had, because he didn't want the bad publicity - I remember being mad about that)

The system got built after that, and worked just fine. We did try to enact a small bit of petty revenge on the SI team manager though - there was a recognition event for people involved on the project, and me and our PCB procurement guy decided to give the SI team manager a special "Faraday Award" for achievement in capacitance (Farads are a measure of capacitance - geeky eng joke). We took an old bowling trophy with a giant, beer-can sized electrolytic capacitor strapped to the top of it as the award. He was a no-show so we didn't get to present it. Those SI guys never did have much of a sense of humor.

Anyway, long story sorry. Just thinking of it recently because I was helping someone at work with an analog simulation and I remembered this..

[cybergrinding]

Routine Maintenance

You gently laid down on the table and unbuttoned the top of your uniform. It was time for your mistress to perform your routine maintenance, your heads-up display notifying you of recognized issues. It was all part of the job, and perhaps for any other doll engineer, would be as bland and clinical as working on any other machine. Your engineer, however, your mistress, was different. She reveled in getting to play with your wires and parts more than anyone else that's ever worked on you. You squirmed on the table just thinking about what she had in store for you today.

You heard her speak from across the room, she was still getting her tools ready. "Alright Eris, any problems you're currently having? Any parts need replaced?" She spoke casually to you, using the nickname she made for you rather than your proper designation, E-415. She may have been reprimanded had any of her higher-ups witnessed her casual conversation with you, let alone what her maintenance entailed.

"Sensors have recognized a bulging capacitor in section A, number 3 specifically. No other issues of note currently."

"Mm, I'll probably have to replace the whole section. You'll also want to keep notice of any other ones too, if one has reached its end of life, the others probably aren't far off. No issues with connecting to your weapons?" She walked over to the table, holding a screwdriver and a toolbox of common replacement parts. She was already wearing her anti-static wristband. Though your external armor was plenty capable of warding off damage to any of your interior circuitry, you would still be pushed to the limit so regularly that bits and pieces needed replaced frequently, necessitating every frontline combat doll have dedicated maintenance staff.

"None, all weapons were fully operational when last connected, high altitude thrusters functioning normally. All weapons disconnected without issue."

"Good, good. Sounds like this won't take too terribly long before we can get to your favorite part." She shot you a devilish grin, you could hear the fan on your back spinning faster to disperse the heat. Not giving you a moment to calm yourself, she took the screwdriver to your abdomen, removing each of the screws holding the steel plate in place. She then pulled the plate off, and set it aside.

“E-enabling hot-swapping mode, mistress.” Though most maintenance staff would set their combat dolls into a low power mode while swapping parts, mistress always preferred to keep you largely powered, doing the minimum to allow parts to be replaced over without causing you to blue-screen.

She took a small flashlight in her hand and shined it into your now open abdomen, looking for the faulty capacitor in question. “Yeah, I see it here, shouldn’t be too hard to replace.” She placed the flashlight in her mouth, and grabbed out the necessary parts. A portable desoldering tool in one hand and the new capacitors in the other, with a soldering iron to the side to set the new ones in place. She reached in with the desolderer, and began working to remove the faulty capacitor. “You know, used to be that I’d need to pull out this whole board to remove the capacitors, but nowadays you can keep your insides inside while I work” She continued giving casual conversation as she worked, hard to understand with the flashlight in her mouth.

Before you knew it, all four had been replaced. Ordinarily, that would’ve been it, your engineer would give you a quick look over and close you back up. Mistress had other plans, of course. “Okay, I think we’re ready for a bit of stress testing.” She removed the flashlight from her mouth and set it down. “Are you ready, machine?”

Machine, there was always something about the way she called you that, so formal, yet so sensual whenever she said it. Nothing else made being a doll feel so good in your mind. You eagerly nodded your head.

She gave an amused chuckle and continued. “Very well, how about we start with…” She reached her hand into your open abdomen, and unplugged a small 3 prong connector from its socket. The fan on your back quickly slowed down and came to a stop. “It’s always important to test for these things, right?”

“A-ah, yes mistress.” You could feel yourself begin to warm up, you still had more than enough airflow to keep yourself from overheating, though to have your wires played with still excited your mind, the disconnected fan prompted a warning on your heads-up display, which you quickly dismissed.

“Hm, How about we test your radar tracking next?” Before you could respond, she disconnected the cable to your camera, leaving you unable to see. Another warning popped up, another warning dismissed. Despite this, you were still able to track what your mistress was doing, no combat doll would be limited to visible light camera for tracking targets.

You tracked your mistress as she clambered onto the table with you, and sat herself on your hips. She leaned forward slightly, and suddenly your vision came flooding back, the connection being restored. Actually seeing her now, on top of you, overwhelmed your senses.

“I’m almost done here, there’s just one last little thing I’d like to test before I’m satisfied.” The playfulness in her voice excited you, until suddenly all feelings of bliss cut off. Another warning popped up, notifying that another cable had been disconnected. You looked up to your mistress, she was holding a small 4 pin connector in one hand, the one that controls all feelings of pleasure. In her other hand was a paper clip.

She unfurled the paper clip until it was just a bent piece of metal wire, and leaned in again moving the metal wire towards the pins the connector used to be plugged in at. “So, all I have to do here is touch this to the first and fourth pins inside you, and…” A jolt of pleasure surged through your body, stronger than you could have ever imagined. By bypassing any sort of control and monitoring system, and simply shorting the two pins, she could overload your mind from sheer ecstasy leaving you, the once fearsome aerial combat doll, little more than a quivering mess on her mistress’s table.

After a couple more taps from the metal wire, you couldn’t focus on anything anymore. You hardly even noticed when your mistress got off of you and began reconnecting everything she unplugged. It was only when you heard the cooling fan on your back spin up that you finally came to your senses.

You looked over to your mistress. She was screwing your abdominal plate back into place, a content smile rested on her face. At all other times, you were E-415, an Excelsior class combat doll. But here, in these few tender moments you had, you were Eris, a machine loved by your mistress.

-----

I really hope you enjoyed this little thing I wrote, its my first time putting anything like this out on Tumblr, and I really enjoyed writing it^^