Questions tagged [damage]
The damage tag has no summary.
198 questions
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how to extract a bearing that broke while extracting? [closed]
I tried to replace the inner bearing of a condenser fan (outdoor unit) of an A/C.
However while the outter bearing was easy to pull out (with the bearing extractor), the innder one was way harder and ...
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2
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Connector flashed in 3 phase AC system
I am working on distribution transformer monitoring device in which we measure 3 phase AC voltage system.
We are using SP17 5 pin circular connector and link attached.
We found the connector is ...
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1
answer
99
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Can a damaged LCD cable cause a power surge that breaks a PCH chip in a laptop?
My laptop's screen stopped working but otherwise was functioning fine when attached to a separate screen.
I took it to a laptop place thinking it'll be an easy fix.
They told me that the LCD cable had ...
0
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0
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Root cause for failed UART interface on SBC
I could use some help troubleshooting an SBC (KSTR-SAMA5D27) that will no longer communicate via some of its UART pins and what could be root cause, so I can prevent future failures.
As part of a ...
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3
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Minimum Bend Radius of a FR-4 PCB
How much tension from flexure can the standard FR-4 pcb endure?
I know this will be a factor of the number of layers and width of each layer, but I couldn't find anything online on how to calculate or ...
1
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0
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Repeated Capacitor Failure on Single-Phase Pump Connected to Pressure Controller (230V)
I’m facing a recurring issue with a single-phase capacitor-run pump installed at a client's site. The pump is connected to a pressure controller, and within one month, we’ve had three breakdowns, each ...
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4
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792
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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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0
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1
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196
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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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2
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1
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207
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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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1
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208
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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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1
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3
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322
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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 ...
2
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1
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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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0
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1
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93
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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 ...
- 101
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3
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479
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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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1
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1
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562
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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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