A blown fuse, a busted speaker, some mystery wires — and one fun repair!
@tdr112 brought a vintage CB radio setup back to life at Tog.
📻 Read the blog: https://www.tog.ie/2025/06/cb-radio-repair-philips-369-22ap369/
#RepairCafe #ElectronicsRepair #CBRadio #Makers #Hackerspace
🔧 Another day, another repair at TOG Hackerspace.
We’ve just finished upgrading an old light box used for viewing film negatives. The fluorescent tube was failing and the driver PCB was toasty... so we fixed it:
We’re all about keeping good gear running — fixing, upgrading, and keeping things out of landfill. 💚
📖 Full blog post here:
👉 https://www.tog.ie/2025/06/another-usb-c-upgrade/
#RepairCulture #RightToRepair #FixDontToss #Hackerspace #TOG #FilmPhotography #SustainableTech #ElectronicsRepair
#Note ⚠️ Whatever We pile here is not any special about #ecurepairs🤷! Just know #HapaUjanjaTu, just to steal drinks from You🫣!
This👇 nonsense just simplifies, welcomes You to the #ecurepair game👇
www.5021.tips/ujanja/ecucomponents
👆☝️
Just be ready to lose your drinks to us😂😅🤣😆 with this #ujanja #electronicsrepair #RepairTips #5021tips #techtipsandtricks #techtips #umeme #circuittraining #electroniccomponents #obdtool #ECUProgramming #autodiagnostics #magari
Hope I’ll never work on a Jetson Nano again 🤣. It all started with customer asking me to replace an SD card port that he broke.
I did. It won’t boot. I connected UART - multiple errors. I installed Ubuntu 18.04 and Nvidia JetPack - tried to flash it - multiple errors.
It ended with TWO DAYS of figuring out how to get the damn thing to work again 😬. But somehow I managed and it works good as new.
Reminded me why I sold mine 🤣.
To understand #electronics, the #ujanja is to grasp the principles of #electricity, as in, controlling flow of electric current to create specific functions in #electronicdevices🤷♂️!
www.5021.tips/ujanja/ecucomponents
Obviously #HapaUjanjaTu🫣, this rubbish☝️is very useless in misunderstanding #voltage, #current, #resistance, and different #electroniccomponents #resistors #capacitors #transistors #ecurepair #ecu #5021tips #electronicsrepair #umeme #electricalrepair #motherboardrepair #howitworks
One more. This Pi got so hot it left melt marks on the enclosure 🤯. Eventually CPU died.
It was one with MXL7704-P4 PMIC so that CPU I tried to install earlier worked perfectly fine.
So indeed it seems like different CPU chips are meant to work with different PMICs.
P.S.: It amazes me how these days reballing and replacing a CPU feels like a quick and easy job - something that was unthinkable just a few months ago 🙆♂️.
#electronics #repair #raspberrypi #electronicsrepair #microsoldering
Guess what - found a CM4 with a dead CPU as well. Same exact chip version again. Replaced it with a seemingly good one from another donor, but don’t currently have a carrier board to test if it really works. Ordered one, but will receive it in a few weeks🤞🏻. #raspberrypi #CM4 #RaspberryPiCM4 #repair #electronics #bga #electronicsrepair #microsoldering
Oh well, today I bought a dead Raspberry Pi 4B 8GB for repair.
I checked 3V3 at the post office and found low resistance - surely a dead PMIC I thought and was too lazy to check the coils around it. Turned out to be a dead CPU.
At first I got a bit upset, but then I remembered that I wanted to try replacing a CPU on a Pi for a while.
So I did. Turns out it's not that big of a deal. Though I did it twice - here's why... —>
Since I repair single board computer every now and again I used #ChatGPT to create a small testing bash script.
It does the following:
- full system update & full-upgrade
- install fastfetch & stress-ng
- run a 5 min CPU burn-in
- perform a 30 min ping test with 10 s intervals
- capture a system snapshot via fastfetch
- save logs for each command
Give it a try ➡️ https://github.com/in-sympathy/SBC_Test.git
#SBC #ARM #benchmark #opensource #raspberrypi #bash #repair #electronicsrepair
Got me some new toys? tools! to play with 😃.
One is MECHANIC KH-001. It has different kinds of bits included and can be helpful with removing welded chips. Those bits can be swapped quite easily and quickly.
I also hoped to use it for #reballing with a magnetic #BGA reballing platform, but this tool and its bits are magnetic sadly.
So I got a QIANLI iHilt 012 that is aluminum and accepts non-magnetic paste planting bits I already have 🙌.
Because why not? 😊
You can’t always win - two Pi’s arrived today - both are not fixable. One is a Raspberry Pi 4B with a dead CPU - a really rare case tbh. It gets to 80+ °C while taking a fixed (dead) amount of current around 800 mA.
The second one is a Raspberry Pi 5 with an exploded (!!!) RP1 chip - impossible to buy, so 99% unfixable as well. Only if customer will source a donor with a good RP1, which is next to impossible sadly.
Commodore Repair Toolbox: Diagnose and Repair Vintage Hardware Easily
#Commodore64 #C64 #Commodore128 #VIC20 #VintageComputing #RetroComputing #HardwareRepair #ElectronicsRepair #RetroRepair
https://theoasisbbs.com/commodore-repair-toolbox-diagnose-and-repair-vintage-hardware-easily/?feed_id=3035&_unique_id=6810cdd8332fe
Oh wow, today was the most challenging Raspberry Pi 4B repair so far. Not only did it have a burned VL805 USB controller and an MXL7704-P4 PMIC, but it also had two dead diodes, some voltage regulators and - first ever in my experience - two dead oscillating crystals 😱.
But after having spent hours on figuring out all that I actually managed to bring it back to life.
No idea how I did it, honestly. Pure luck and god's will 🙏.
New day - new Raspberry Pi brought back to life 😃
This one probably fell down because it had no shorts, all voltages from DA9090 were present, but it didn’t start most of the time - it did once but then I spent quite some time trying to figure out where is our issue.
Reflowing CPU and RAM chips must have helped ✅
#raspberrypi #repair #ifixit #electronics #electronicsrepair #diy #sbc #linux
Wow, this was a surprisingly detailed article about how to fix a jumpy mouse scroll wheel by fixing or replacing the encoder.
Unfortunately, I do not feel up for this right now actually. It's cool to know it's possible though.
https://www.makeuseof.com/fix-mouse-scroll-wheel-jumping-up-and-down/
#electronics #consumerelectronics #electronicsrepair #repair
So my #Bosch #Intuvia display started to fail to wake up the battery/motor on power on. Its still possible to press the button on the battery to wake it and the motor up but... eh.
Now it got a new smol LiPo. It lasted 25000 km / 1990 hours / 10 years so not bad.
25007 / 1990 hours - thats way too slow? Yes, it counts the time on the charger as well so this is ride time + charge time = total on time (minus the time where I charged the battery directly / not in the bike).
#USBcable #USBports #pinouts #electronicsrepair #electricaltips #5021tips #electronicstips #USB #electronics #HowItsMade #HapaUjanjaTu #Ctype
Something a bit different - a #Raspberry Pi #CM4 with a CM4-NANO-B carrier board by #Waveshare.
Customer accidentally put this assembly on a metal surface and it did got shorted.
DA9090 PMIC was dead and had been replaced, but it took me quite while to figure out how to make it work again - see the thing is that when you flick the switch on a baseboard CM4 won't turn on. You have to power the whole thing down, flick the switch to ON then then power it 🤦🏻♂️.
A little repair action at last night's Electronics Night! ⚡ The power supply feeding a CD drive failed, but our members got to work diagnosing the issue. Repair and tinkering are just another Monday at Tog! 🔧💡 #Hackerspace #ElectronicsRepair
Oops. I thought I'd clean the heads of the disk drives on the Tandy TRS-80 before trying them with the machine. The head on the top side fell off.
It seems it was just glued on, so I applied some fresh glue and stuck it on again. The good news: this was not the boot drive. The bad news: it doesn't seem to be working. Maybe I messed up the head alignment? Guess I need to hook up the oscilloscope and check the signal coming from the head.
At least the boot drive is working, and for the first time in my life I booted up a TRS-80 from disk.
Interesting mods as well, to select between 40 and 80 track operation.
Oh, and it turned out the heads weren't that dirty to begin with, probably didn't need a clean anyway.
#RetroComputing #Tandy #TandyTRS80 #TRS80 #Electronics #ElectronicsRepair
