c/electronics-repairers

Just spent 6 hours on a laptop that only needed a 2 cent resistor

Had a Dell XPS 13 come in with no power, and I went down the rabbit hole checking the main power rail and the charging IC. I even reflowed the whole board twice. Turns out it was just a tiny 0201 resistor near the battery connector that had cracked and gone high-resistance. The part cost nothing, but finding it took me from noon until after 6pm. Has anyone else had a simple part cause a huge time sink like that?

Fixed a flickering monitor by baking the main board in my oven

Had a 27 inch Dell that would cut out after 20 minutes, and a new power board didn't fix it. I pulled the main logic board, wrapped it in foil except the chips, and baked it at 385 degrees for 8 minutes to reflow the solder. Has anyone else had a board survive this fix for more than a year?

Serious question, is a $200 thermal camera for phones actually worth it?

I bought one to find shorts on boards, but the resolution is so low it just shows big blobs of heat. It can't pinpoint a single bad component next to others. Has anyone found a real use for these cheap phone attachments, or did I just burn cash?

I thought those cheap thermal pads from the online marketplace were junk.

For a while, I refused to use anything but the expensive brand name pads for GPU repairs. A client brought in a card with a specific 0.5mm gap, and the good stuff was out of stock. I tried a generic blue pad from a kit, expecting terrible results. After running a stress test for an hour, the temps were actually two degrees lower than my usual fix. Has anyone else been surprised by a no-name part that just worked right?

Back in 2015 at the Asheville repair meetup, I saw a guy fix a cracked PS4 HDMI port with a hot air station for the first time.

Before that, I was still trying to do those with a regular iron and a lot of flux, which was a mess half the time. Watching him swap the whole port assembly in about two minutes with clean heat control was a game changer. I bought my own Quick 861DW the next month. Anyone else remember when that method became the standard for those jobs?

Finally gave up on the generic flux and switched to the good stuff

I was using a cheap no-name flux paste for years, mostly for basic console HDMI port jobs. Last week, I had a really stubborn, oxidized pad on a vintage amp board (a 1978 Pioneer, to be exact). The cheap stuff just wouldn't get the solder to flow, no matter how much I cleaned or heated. On a whim, I dug out a tiny, expensive sample of MG Chemicals 8341 I got at a hamfest. The difference was instant. The solder beaded perfectly on the first try, and the joint looked clean under the scope. I wasted maybe 30 minutes fighting with the old paste before the switch. What's your go-to flux for tough, old board work?

Finally gave in and bought a proper hot air station for SMD work

I was using a cheap heat gun for years, but the Yihua 862D I got last week has a digital readout and way better airflow control. It made replacing a BGA chip on a laptop motherboard feel almost easy. Anyone else have a favorite tool that felt like a huge upgrade?

Why does nobody talk about the weird hum in old CRT TVs?

I was fixing a 1995 Sony Trinitron for a guy in my building and he mentioned the hum always got louder before a storm. I checked the flyback transformer and sure enough, the core was slightly loose. A bit of epoxy fixed it. Has anyone else heard of weather affecting old electronics like that?

A whole week of nothing but water damaged phones from the same concert

Last week was just wild. I think every single person who went to that big outdoor festival in the rain must have brought their phone to my shop. I had a line out the door for three days straight, all with the same story. I must have opened up 30 identical models, all with that same pink corrosion on the charging port flex cable. The weird part was how many of them had rice grains still stuck in the headphone jack. I spent more time with my isopropyl bottle and my little brush than I did with my soldering iron. It got to the point where I could do the whole disassembly and clean in about 12 minutes flat. Has anyone else ever had a flood of the exact same, super specific damage from one event like that?

Can we talk about the week I had to replace 14 identical blown capacitors on a single production run of monitors

Every single unit from that batch had the same cheap 1000uF cap fail in the exact same way, which meant my whole Thursday was just the same 20-minute repair on repeat while the owner complained about the 'downtime'.

Vent: Spent 4 hours chasing a phantom short on a vintage radio

It was a simple crackle in a 1960s Zenith, but the real issue was a tiny, almost invisible solder bridge hiding under a coil form. Anyone have a good trick for spotting those without a microscope?

PSA: A cheap power supply almost cooked a client's vintage synth board

Honestly, I was fixing an old Juno-106 in my home shop last Tuesday, and the thing just would not power on. I figured the issue was a dead regulator, so I hooked up my bench supply to test. Ngl, I grabbed a generic 12V brick I had lying around instead of my usual unit. The second I plugged it in, I saw smoke and smelled that awful burnt plastic smell. The brick was putting out nearly 18 volts due to a bad cap, and it fried a custom IC on the voice board. I had to spend the next four hours sourcing a donor chip and explaining to the client why the repair bill just went up by $80. Has anyone else had a generic power supply fail in a way that caused more damage? I'm sticking with my Agilent from now on.

Remember when you could fix a TV by just tapping the side of the cabinet?

I was fixing an old CRT for a guy last year, a big Sony from the late 90s. The picture kept rolling and he was about to junk it. I remembered my old boss saying sometimes the vertical hold pot just needed a clean, but the whole board had to come out to get to it. I was feeling lazy, so I tried something dumb first. I took a can of contact cleaner, stuck the little straw through a vent hole in the back, and gave the area around the vertical IC a good spray while the set was on. I kid you not, the picture snapped right into place and held. It was a total fluke that saved me an hour of disassembly. You can't do that with a flat screen. Makes you miss the days when a fix could be that simple and cheap. Anyone else ever get away with a weird shortcut like that on an old set?

Had to decide between a $30 replacement screen or a $5 tube of UV glue for a Pixel 6 back glass.

Went with the glue, spent forty minutes under a desk lamp trying to cure it, and now the phone looks like it has a permanent, slightly cloudy sunburn.

Honestly, I used to think fixing a cracked screen was just a quick swap job.

This older guy brought his tablet into my shop in Tacoma last week, and after I quoted him the repair, he just sighed and said, 'The screen's the easy part, kid, but did you check the digitizer ribbon cable for stress fractures from the impact?' Ngl, I hadn't, and sure enough there was a tiny tear I would've missed. How often do you guys do a full connector check before ordering parts?

A customer's old radio made me see my work differently

A guy brought in a 1970s tube radio last week, saying he just wanted to hear it play one more time. He told me, 'It's not about the sound, it's about the memory of my dad building it.' I've fixed hundreds of things, but that hit different. It shifted my view from just fixing broken parts to saving stories. Anyone else get a repair job that felt more important than usual?

Found a weird fix for a dead laptop screen that actually worked

A customer brought in an old Dell laptop with a completely black screen, but the backlight was on. The usual steps like reseating the cable and checking the inverter didn't do anything. Out of pure frustration, I decided to try something I saw mentioned once in a forum years ago. I took a small piece of electrical tape and covered the first two pins on the LVDS cable connector on the motherboard side. This blocks the 'panel detect' signal. Plugged it back in, and the screen just lit up with a perfect picture. It's been running fine for a week now. I guess the internal circuit on the screen's controller board that handles that signal had failed. It feels like a hack, but it got the job done without needing a whole new panel. Has anyone else had success with this kind of workaround, or is it just asking for trouble down the line?

PSA: I picked a cheap hot air station over a Hakko and it's been fine for 2 years

Everyone says you need the expensive gear, but my $80 Yihua has reflowed dozens of phone boards without a hiccup. The temp is stable and the nozzles are fine. Am I just lucky or are the big brands overrated for basic shop work?

My buddy swore by using a heat gun for every single stuck connector, and I finally had to admit he was wrong

For years, this guy I know from a repair meetup in Austin would say 'just hit it with the heat gun, it'll pop right off' for any stubborn ribbon cable or power jack. I tried it his way on a Nintendo Switch last week, trying to get the battery connector loose. Ended up warping the plastic housing and had to order a whole new back plate. Cost me $22 and an extra hour. What's your go-to method for those really stuck plastic clips that won't budge with a spudger?

Just had a $500 repair almost go sideways over a single stripped screw in a MacBook Air

I was in my shop in Austin, and the head stripped on the last P5 screw holding the logic board, but a dab of super glue on the driver tip saved the whole job. Anyone have a better trick for those tiny, soft screws besides just buying a whole new driver set?

Everyone told me to replace that 2015 MacBook Pro logic board, but I spent 2 hours reflowing the GPU and it's still running fine 8 months later.

I know everyone says reflowing is just a temporary fix, but for a client who couldn't afford a $700 board swap, it was the right call and it's held up through a Chicago winter and summer so far, so when do you decide a 'band-aid' fix is actually good enough?

Pro tip: Count your old phone screens before you toss the bin

I was cleaning the shop yesterday and decided to sort my scrap pile. I started pulling out broken iPhone screens from a big plastic tub, just to see how many were in there. I hit 100 screens before I was even halfway through the bin, which is wild because I never thought I'd fix that many. It's a weird mix of pride and 'wow, people are rough on their stuff'. Anyone else ever do a count like that and get a shock?

My bench power supply decided to fry a board today

I was testing a laptop motherboard in my garage, had the supply set to 19 volts like always. Heard a pop and saw a tiny puff of smoke from a chip near the power jack. Turns out the voltage dial on my old unit had drifted high, it was actually putting out almost 22 volts. Had to spend the next hour finding and replacing that fried regulator. Anyone have a good method for checking power supply calibration more often?

Had to decide between a cheap hot air station and a good one for a MacBook logic board

A client in Denver needed a GPU reflow on a 2015 MacBook Pro, and I was stuck choosing between a $80 generic station and a $350 Quick 861DW. I went with the cheaper one, and it couldn't hold a steady temperature, which ruined the board. What's the least expensive hot air station you'd actually trust for board-level repair?

Changed my mind about those cheap soldering irons after a Tuesday from hell