Questions tagged [damage]
The damage tag has no usage guidance.
192
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SMD soldering with hot air
I'm fairly new to SMD work but have worked for a very long time with more tradition soldering.
I've tried various ways to remove faulty SMDs (ICs usually) with my hot air gun but have a reoccurring ...
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How badly did I damage board with first time soldering to remove component? [closed]
First time soldering. Is this thing unusable or might it still work?
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102
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Strange Resistor Situation
I am looking at a schematic for an RF sensing switch, and I notice that there are two resistors that are marked in the schematic as 18 Ω resistors. They are 2512 SMT types and are installed in ...
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Very loud sound without smell: electric arc?
Short version:
Extremely loud sound a few seconds after power on (400 V AC, 3 phase) in high humidity, no smell: is it arcing? Is it possible that a component exploded without smell?
Long version:
...
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Damaged ATMEGA328P despite clamping diodes and current limiting resistor
I have a custom PCB designed to interface an Arduino Nano's ADC pin that had 12v from a bench power supply inadvertently connected to a header pin meant for 5v input. The ATMEGA328P now gets extremely ...
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Is there a risk of damaging built in RF components having several Iridium SBD 9603N modems active close to each others?
I use Iridium SBD 9603 N modems in some hardware (oceanographic buoys). I use high gain antenna, typically the setup is based on https://www.sparkfun.com/products/18712 and https://www.sparkfun.com/...
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guitar amp experienced over-voltage [closed]
Disclaimer: I am not an electrical engineer, I made a mistake which left a piece of equipment in what feels like it should be a salvageable state, but I don't know where to start correcting it.
So, I ...
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How to find out if the PIC microcontroller is good or dead?
I am working with a PIC microcontroller (part number dsPIC33FJ64MC802).
Previously I was able to program it fine. But today, I have powered the PCB which contains the PIC microcontroller, then ...
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Testing out a bridge rectifier if it works with only a multimeter
Indulge me here with this scenario, but suppose the electronics shop I'm sourcing parts have dubious, faulty semiconductors parts -- damaged, counterfeit, etc. What have you.
How do I test if a bridge ...
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How to fix a broken relay that's still clicking?
Last week, one of my cooking plates was not working any more.
I was able to track the problem down to the cooking plate relay (Finder relay type 45.61, 14Vdc, 16A, 250Vac).
This relay still makes ...
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I keep Blowing up my i2C (ISO1540) isolator when plugging and unplugging my battery
I am using a ISO1540 to read the SMBus of some BB2590 batteries. The relevant part of the circuit is shown in the images below
The issue that I am having is that sometimes when connecting or ...
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Would a Hall effect sensor be damaged by gross saturation?
There's this old question that is almost what I'm looking for, but not quite.
I want to make a current direction sensor - I don't care about magnitude - for a car starter battery. I care about the ...
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General guidelines to avoid damaging RF components
So, I am a young researcher in physics and use RF components like splitters, mixers, couplers, amplifiers, etc. These are not high voltage amplitudes at all - at most a few volts - often hundreds of ...
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Is this inductor ok?
I was cleaning a 10+ year old LCD TV with a damp rag and noticed an ozone-like smell. I assumed a chip was frying or something was arcing. I unplugged it, gave the power supply some time to discharge, ...
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Fluke 393 checked resistance on a live circuit wonder if I damaged my meter
I have a fluke-393 multimeter and I was testing voltage on a 480V circuit didn’t realize I was on resistance and when I put my probes on the circuit there was a small arc, quickly taking my probes off ...
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Possible degree of damage to PSU
The following PSU accidentally got 400 V instead of 230 V at J6. There is a fuse built into the power switch, which is connected to J6. The fuse blew on the original incident. Trying to replace the ...
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Small indentation in rechargeable battery
I bought a small lamp and opened it up. I used a knife to carefully separate the top from the bottom shell and I am pretty sure I didn't insert it that much to create the two points on the left, and ...
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I ripped the lead off this film capacitor by mistake - is it beyond repair?
As the title says, I accidentally ripped the lead off this film capacitor. It was the only one I had - am I out of luck, or can this be soldered back on? I've provided photos, including one under my ...
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Stopping electric arcs between layers in PCB - big PCB burn
Firstly, let me preface this with the fact that I am not interested in chastising the user, and I am not interested in looking at the original source of the arc (it was a tool accidentally breaching ...
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Can an LCD be damaged by a low battery voltage?
I've got a digital alarm clock where the battery got really low, to the point where the display was hardly viewable. I assume that the voltage must have really dropped. I put some new batteries in it, ...
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Is it possible to replace 50N06 chip? [closed]
Problem:
I've got an LED light bar that has started blinking on half of it. I disassembled it and found an apparently damaged area on the PCB inside.
Question:
What is this chip? Would I have any hope ...
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What was this completely destroyed piece?
Yesterday morning, I was preparing my tiller pilot (auto pilot for small boats) but it sounded like something was loose inside. When I opened it up, I found a damaged rubber sealing and the piece in ...
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Can chips be sensitive to mechanical stress after an electrical incident?
Is it possible to electrically damage a microcontroller (or any chip) in such a way that it becomes very sensitive to mechanical stress?
Some background:
We are developing a board with 7 identical ...
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Help identifying silver oval capacitor
[Edited to stay on topic]
My induction hob recently went 'pop'. I believe I have a blown capacitor. "C24" on the main board. It is showing subtle 'bubbling' at the end.
My issue is that I ...
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why did my powered usb hub kill my computer's usb port? [closed]
Curiosity kill the computer port. But why? I bought a 4 port USB 2.0 hub. I removed Vcc and Gnd from the Type A connector of the hub. Then I powered the hub and inserted a USB stick into one of the ...
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Higher PWM frequency than rated for device
I've an electronic speed controller (ESC) rated for a maximum PWM frequency of 48kHz. As I was working on a project I was generating PWM. This PWM signal was connected to the ESC. After I noticed that ...
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337
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BJT collector power limit in pulsed usage?
Assuming that my circuit respects the voltage, current, and thermal limits of a BJT, can the device be electrically damaged by exceeding an instantaneous collector power limit?
In other words, are BJT ...
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265
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Is a damaged charging cable safe to use? [closed]
I have a M1 Macbook Pro 2021, 14". The charger that comes with this device is the 67W adapter and a USB-C to MagSafe3 adapter. Unfortunately, today I didn't see the charger on the ground and hit ...
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LED Dimmer circuit accidentally damaged
I am currently working on a prototype system that uses these 3w LED drivers (I am using the one with the picture at the right). It uses the XL4001E1 CC DC-DC converter capable of outputting 700mA to ...
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AMD 5600x microprocessor substrate damage
I hope this question lies within the guidelines.
I have acquired this AMD 5600x microprocessor for a very low price. It was dropped on the corner (see picture) where we can see some delamination.
The ...
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