circuit board

Hello everyone, For quite some time now, the four windows of my 2006 VW Polo have not been working. After a long troubleshooting process, I came to the conclusion that it must be due to a defective circuit board in the window regulator control unit, which is located in the driver’s door. On...

Hi! I am a student in an electrical class for my Doctorate. However, I do not have previous electrical experience (this is a one off class they said I needed). I am having trouble putting the circuit onto a breadboard. I just cannot picture at all how the schematic is supposed to translate to...

Hello, I am trying to follow the recommended circuit diagram of the photodiode I am using, as specified by its manual. Does the circuit below match the one in the diagram?

Hello please help Im a DIY notive i have some basic knowledge but struggling to identify whats causing resistor to keep burning on my eltax A-8 subwoofer amp circuit board. Reason it blew was I played music to high and burning started coming from subwoofer. I've replaced the speaker but now its...

Dear Members, I hope you are all doing well. I am a PhD student and completely new to circuit design. I need a compact-sized circuit and prefer not to use an impedance analyzer due to its bulkiness. I am looking to build a circuit capable of automatically measuring the impedance of a sensor in...

Greetings. I'm an electronics hobbyist and I'm currently stuck on Simulating a PCB before Fabrication. I designed a PCB using the EasyEDA.com platform, but I would like to simulate its response before sending it for fabrication. How can I test the PCB, and which platforms/software(s) can I use...

Hi there party people :) I have bought 3 ceiling fans with a light built-in. The problem is the light has both cool white and warm white LEDs. When switching on, it first goes to warm, then cool, then combined, then back to warm. I want to deactivate the cool white lights so if power is sent to...

Hello to those far more knowledgeable on the subject of electronics than I. I guess I'll tell you what I'm aiming for and go from there. Ideally, I've been wanting to create a led tachometer that at least resembles the one from a honda s2000, I'll include an image for reference, but to make it...

Hello, I hope you're all doing well. I'm putting together a sound system for my room. It has two power amps: one for two normal speakers and the other one for a subwoofer. I have put a pre-amp with the power amp that's gonna filter the sound going to the subwoofer. The whole system is powered...

Hi there The photos attached are of a board that is used for creating an effect with vehicle back lights (for instance flashing rear brake lights and rear indicators independently every half second to create an effect.) My project is recreate this for two new units, but as a complete and utter...

Hello, I am building an amplifier for an electric guitar, and I am encountering an annoying issue when playing the higher frets of all 6 strings of the guitar (Stratocaster) with more force: when playing a string after fret ~19 with greater intensity, the sound distorts, as if it were an...

can you please identify this IC because there is nothing written on it or you can suggest me a substitute with the same pinouts. This circuit board is used in 8 program flashing led lights adapters.

hi everyone, I am trying to repair my drone controller. One of the component is broken and fell. I think its a crystal oscillator. Its 6mm x 1.5mm. I dont know how much mhz it is. Is there a way to know how much it is at home. I wil attach some images of it and where it belong. Even if you guess...

I have been trying to use the USB2244 on a board but i can't seem to get it working and I am not sure what the problem is. I have went over and over the datasheet but can't seem to figure out what i'm missing . I have attached my schematics, I have verified i have 3.3V, and also that the 1.8...

Hey guys, I am trying to diagnose what the issue is with my Kurzweil CUP2 digital Piano The piano displays no sign of life besides a red on led. LCD screen does not display anything Buttons do not seem to do anything(there is a little red light above each button that indicates the "mode" it is...

Hey guys, I am relatively new to micro electronics, and am in desperate need of help! I want to bypass the muting circuit in a electronic piano. This involves either activating the relay, or pulling it to ground (BA3-5 Relay, and the highlighted LS1 in the picture below). Please could someone...

Greetings humanoids! There’s no doubt that robots are here; we are seeing them more often in the home, in the sky, or working on the farm! And we know firsthand that many engineers fell in love with hardware or coding by attempting to build their first robot. We’re excited to launch our...

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Hello, About a year ago I bought a Muff Guitar pedal project from Bitsbox. It was working well untill it broke last week. I took it apart and noticed the ground wire coming from the output has been pulled out of the board (the output became lose and must have spun enough to pull this off). Now...

Hi everyone, I’m very new here and I’m currently working on a very small project that seemd as if it would be simple at first but is proving to be harder than expected with little to no tech knowledge as of yet. It’s a project for my cat & new kittens. They have a laser cat toy that turns on...