soldering

Hello all, I was soldering an SMD component and I accidentally used a higher temperature and airflow to solder it so I burnt the PCB and a bubble appeared around the area as seen in the image below. Is this bad? will this issue affect the functionality of the PCB? What can I do to fix this...

Hi. A friend gave me a JTS JS-1E large diaphragm condenser mic that has been partly disassembled and needs some soldering. Seems to be quite simple but Im not sure how it should be wired. As shown in the photos there is an M- and M+ that I think need to go to the diaphragm but I don’t know where...

Hi, i just finished my first soldering, i tried to solder header pins at lcd screen 2x16. And it looks so bad , i pluged it to arduino and screen did not turn on, i think i damaged some part of it but i dont think so and i m not good at arduino as well and i did not pluged it correctly so here's...

After soldering up the parts, the DMA process on my MCU's (ATSAML21J18B-AUT) is breaking. I use an IR oven (T962A), cover the MCU in a heat shield, and reflow using low temp solder (the process gets up to 180C). With an iron at 200C, I will touch up pins with bad solder joints. The MCU is rated...

Hello, I have a sleeping sound machine that uses a Fan to create white noise. It has a 3 position Switch, "off", "high speed", and "low speed". Essentially, these settings are either too loud or too quiet. I would like to remove the 3 setting Switch and replace it with a Potentiometer to...

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Short version i have 20 IC's i need to remove from there current pcbs and solder them onto a programming board and solder them back onto there pcb they came from, would you think the smd pads on the programming board would last or should i be concerned about damage to the programming board pads...

I am trying to make a second monitor out of my old laptop screen. I have the control board already and it works, but I want to make it more compact. The screen takes a 12V power supply to power it, but I want to make it powered by plugging it into the USB port on the computer. My idea was to get...

Recently I bought this lead free solder (Sn99.3%, Cu0.7%), D0.6mm. I have seen many suggest at least 350°C for soldering iron. But I tried at around 225°C (between 200°C - 250°C), the solder still melt well. (All shinny surface) (Some dull some shinny) Funny...

Hello, I had an old AC adapter (230V AC to 14V DC). There was a small part where the insulation of the cable was damaged. You could see the copper coming through. So, I cut the damaged part away, soldered the wires back together, and insulated them with heat shrinks. However, when I then tested...

Product: Pavilion 15-au146ng Hello guys, one pin of my rj45 port of my HP Pavilion 15-au146ng is broken off. Now i search for the port in the web to replace it by soldering. But i cannot find the correct type. Maybe someone of you knows where to search or even got a link for me to the product...

So I had my first soldering experience on my second computer mouse, idea was just to put in new microswitches. I began to do with my old thick soldering iron and now it looks like I applied too much heat and my solder pads GONE. I bought myself a new better soldering iron, but havent seen any...

Seems difficult to identify all the possible solder-balls that can result from SMT and Reflow processes. Also not always will all the solder-balls stuck to the bases of parts wash out. So then I guess only an additional visual inspection could identify them. But I'm wondering if the pixel-data...

My friend has a broken blue snowball microphone and its powers by a mini USB cable plugged into a computer, the mini USB connector somehow broke off the board and has been rattling around its casing, I opened it up and found where its supposed to be connected, is this saveable? could I just...

Well to start i am in no way an electrician or an engineer. Lol I'm just an old ironhead, im a ironworker and my hobby is electronics but I'm always working in the software side but as of lately I been dabling in the hardware side and got a soldering iron and everything needed with it I havnt...

Hi there, I have been working on an AM radio test generator. It is from the book ”building your own transistor radios”. I would provide a schematic of the circuit although I believe the copyright would prevent me from doing so. The two ICs used in the circuit are the 74HC14 hex Schmidt...

I'm working on a DIY project where I need to control some 9V solenoid valves with an arduino. I don't have the tools to make a PCB myself, so i choosed to work on perfboards. Now, I have to connect power supply (MeanWell ) to the step down regulator (Polou D36V50F9) that powers the solenoid...

I'm simply trying to learn and practice soldering and desoldering. I have an old board i am working on and can't for the life of me get ANY of the components off. I can't even get the solder to melt. Do they use something other than solder during manufacturing? Here is a picture. I have...

So guys the display ribbon cable on my JVC KD-AVX44 went bad, and I was wondering if I can find something similar, or if it's just a proprietary cable, that only JVC uses. It's a 24 pin ribbon cable with a regular termination on one side, but on the the other it's split into two 12 pin...

Quarantine project: Adapting a Sony BFV-20W viewfinder Scroll down to skip the background info As a cinematographer, I've always really felt most comfortable shooting with a viewfinder. However modern electronic viewfinders all exist in the "prohibitively expensive" class of filmmaking...