Questions tagged [soldering]
Soldering is the metallurgic process used to fix electronic components to a PCB, usually with a tin alloy. Soldering can be done by hand or automatic. PTH boards were usually wave soldered, SMT uses reflow technology.
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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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Brand new FPGA burnt?
So, when I plugged in my FPGA for the first time, it started to smell a bit like chemicals, and this showed up. Is it burnt, or is it just some type of residue that popped up once I connected it?
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How "replaceable" is this Wifi chip after it has been SMD-soldered to the laptop's motherboard?
The laptop: HP Spectre x360 15tf-100
The problem: Wi-Fi module is dead. This laptop uses AX201D2W. It has the following package:
Replacement modules are easily available i.e. from Aliexpress.
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Perfboard short circuit debugging
I've got a perfboard circuit I put together that's drawing 1.7A when just the 5V and GND pins are connected. As you might have guessed, this is not ideal given the existing components.
The A4988 motor ...
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What would cause desoldering braid to simply not work?
I'm trying to replace the triac in a floor lamp dimmer, and completely failing to remove solder from the pads with desoldering braid. I've desoldered plenty of times before, though admittedly not ...
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Desoldering components
One time, I accidentally reversed the polarity of a diode (luckily I noticed it before I powered it on), so I tried to desolder it. I tried solder pumps and solder wicks but nothing happened. I think ...
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Tips on removing solder stuck in very small hole
I'm a beginner in soldering. I was trying to change the LED of my mouse, and I successfully removed it, but now I can't put in a new LED because there's solder stuck in a very small hole. I only have ...
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How to replace microjack on stereo earplugs with microphone [closed]
I broke a microjack connector. It is attached to a set of stereo earplugs with built in microphone. I know how to solder, but I am not sure how to find the correct replacement plug and how to identify ...
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Fixing the voltage leak on a soldering station - What should be done? [closed]
I found a soldering station Aixun T3A on youtube that got a very positive review.
The review said:
High temperature accuracy
Fast temperature heating speed
Low temperature overshoot
High power
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Are these bodges equivalent to the traces they fix despite bypassing vias also connected to the traces?
Given these broken traces underneath two ICs:
For the broken traces that run pad-via-pad, is it OK to bodge on top of the pins of the ICs like this, even though this "bypasses" the vias?
I'...
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Why did my 50µm gold wire vanish when I tried to tin it?
I was trying to tin 50µm gold wire to solder it to something bigger, but touching the gold wire to a bit of molten solder on the tip of an iron caused a couple of mm of wire to disappear. The solder ...
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Black spots on soldered joints
When I solder, I often end up with black spots like the ones you see in the picture. I circled one.
Is it burned flux? Will that affect the connections? How to avoid them?
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Is there flux that doesn't brown under heat?
Adding flux (MG8341) to rework a component is resulting in ugly brown stains as shown in the picture below; this is a flexible circuit board with white cover-lay. The flux started to turn brown add ...
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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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Is it an issue if connections are too close to each other?
I like the idea of making very compact circuits. However, it worries me that the connections will be too close of each other, increasing the likelihood of shorts or melting nearby solder by accident.
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