The damage tag has no wiki summary.
2
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2answers
95 views
How can I tell if my battery is damaged physically?
I have boughten a rechargeable battery and a charger a few months ago and when I received it, I briefly hooked it up to a multimeter and shoved it in the back of a drawer to use on another project ...
1
vote
3answers
82 views
Damaging op-amps
What will it happen if I try to shift the 3V input signal with 1.5V or 3V. The op-amp is powered from +3V3.
Can I damage the op-amp if powered from GND to 3V3, but the input signal is between ...
1
vote
1answer
88 views
What kind of failure would I see in moisture sensitive parts?
I am reflowing a design using an electric skillet. When the uC and LEDs arrived they were in moisture sensitive packaging. They were in sealed bags with moisture indicator cards. After I opened them I ...
2
votes
1answer
134 views
What frequency and voltage should the electrical outlet have in order to be the least harmful to humans and still be useful to modern appliances?
Studying electronics a few years back I came across a graph like this one:
Showing that 50-60Hz current that is by far the most popular power coming from the electrical outlets in homes everywhere ...
0
votes
1answer
76 views
How should a radio receiver be used to detect damage to concealed wiring?
Several structures hereabouts date back to the mid 1920s. Electrical wires were insulated by cloth winding, and embedded in wooden channels (sp?). With the passage of time the cloth rotted away in ...
0
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2answers
127 views
Battery powering an unknown DC motor
I know nothing about motors. I have DC motor (sealed in a casing) that uses 6v/12v 1a (mains switching power supply) with 2.1x5.5mm DC connector. It has variable speed controller, reversible ...
0
votes
2answers
131 views
damaged capacitor and/or power amp
I have a Mackie MR8 MK2 powered studio monitor that recently started making a horrendously loud humming and clicking noise (I mean LOUD, as in cover your ears). Being just out of warranty, I decided ...
5
votes
4answers
326 views
Can electronics be damaged by undervolting it?
I was wondering if there are some particularly important mechanism by which one can break electronics, when undervolting it. Its pretty obvious that lots of electronics will not work properly if ...
2
votes
1answer
740 views
22J 6KV and 33J 6KV are two kinds of ceramic cap that seems to be burned out. What do I replace it with?
These capacitors are located in power supply module DPS-279BPA section where it is marked with high voltage area. It is a Phillips LCD television...
2
votes
2answers
235 views
Why some computer peripherals should not be disconnected without turning off things?
As far as I know, some cables should not be disconnected from computer while it and/or the device is running and persistent hardware damage can occur if they are unplugged errorneously.
Currently the ...
1
vote
2answers
417 views
pcb damaged, broken copper any ideas?
I was trying to solder a new capacitor on my pcb and I had problems. At the end I think I burned the copper under the pcb mask and I am wondering if i totally destroyed my pcb. Here is a picture:
...
0
votes
1answer
112 views
Can shutting of power bar damage cables or modem?
I switch off the power bar which has my modem and computer plugged into it a few times per day. Two days ago, a technician changed the wiring since my Internet completely stopped working for the ...
3
votes
4answers
232 views
Breadboard Quality questions
I'm an electrical student in my second year and I'm using a breadboard for multiple lab classes. I'm thinking that my breadboard is starting to fail inside and I'm having a hard time troubleshooting ...
8
votes
5answers
1k views
Does magnetism affect SD cards?
Would a strong magnet have any effect whatsoever on a thumb drive (I'm assuming not) or on an SD card? It seems unlikely, but I'm hoping someone can give me a definitive answer, since I'd rather not ...
4
votes
3answers
529 views
What's the damage incurred by the chip on this photo?
The "generic error" page features this damaged chip with some kind of cavity:
I guess it's some typical damage, but I have no idea of what it might be.
What's the damage incurred by this chip and ...
0
votes
6answers
567 views
Can a solid capacitor be damaged by a heat gun?
I used a heat gun to solder a 32 pin SOIC IC (DIR9001) and after I was done I saw that a cap nearby (solid cap) got EXTREMELY hot and started to discolor (yellowish hue).
Is it possible that the cap ...
2
votes
3answers
244 views
Multimeter misuse by shortening a 220 voltage through it
I intended to measure an AC voltage, but I forgot the multimeter on the resistance position (200 Ohm scale). I've shortened the 220V through the multimeter.
The fuse is not damaged, neither the ...
0
votes
2answers
376 views
What can cause this damage to the GPU?
I bought a computer for a person in which, when delivered, the video card (Gigabyte Nvidia GTX 570) never gave output. The only way the display got basic VESA output was when I moved the card into in ...
5
votes
3answers
3k views
Water and Electronics?
I've read a lot about people cleaning keyboards in the dishwasher. But how does the water damage electronics? Does it cause shorts on the ICs on the internal circuitry or physically get in the ...
4
votes
3answers
2k views
Is the damage on this circuit board too much to be fixed? (pics inside!)
So a few weeks ago, my boyfriend's 32" flat-screen TV popped like a firecracker while I was watching it (and scared the hell out of me!), followed by a burning smell. This is the third device of his ...
4
votes
2answers
256 views
My rechargeable Ni-MH AA batteries went through the wash in my pocket! Are they safe to use?
I havent used them yet, but I'm getting the impression they will be fine to recharge and use after they dry out. Is this true?
1
vote
1answer
441 views
Is it safe to keep on using AC adapter with a damaged output capacitor?
I was experimenting with my universal laptop adapter (Meind 100W) and when I switched it to 34V mode (while official max is 24V) the capacitor (25V) popped (the top opened and some white fibers spread ...
4
votes
3answers
3k views
Can I break batteries by putting them in the wrong way?
If I put in batteries the wrong way (+ and - sides reversed), is there a risk that I will break them? Or the device? Or start a fire?
In particular, I am talking about rechargeable Ni-MH eneloops ...
2
votes
4answers
1k views
Repair a burned trace on a PCB
I've got a PCB (from a multimeter) that apparently has 2 traces on the PCB burned away.
How they did it, I don't exactly know, but the traces are really gone completely.
The problem is however, that ...
6
votes
6answers
446 views
Is it current (and power dissipation) which damages things, not voltage?
With higher voltages (more than about 5V), microcontrollers may be damaged. Is this because the voltage actually physically damages them, or because it allows excessive current to flow? - and thus ...
