Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Some of the newer business jets have electronic window shades. It's a neat concept, but they stop working all the time and the cost to get one replaced is ridiculous. I'm trying to figure out how to repair.
Everything mechanical is pretty simple, but there's a circuit board that I'm worried is...
Hello. I will try to make a smart key of my volvo car key. I have a problem and that is where am going to solder on positive and negative on the circuit board? I will provide some pictures on how it looks. Thanks.
I have a serta motion essentials 3 bed remote that kind of got washed... It's been taken apart, cleaned with alcohol, and put back together with new batteries. I have 3 buttons illuminating with no bed response. I have even attempted re-pairing bed and remote. Nothing. Remote serial in photo...
Hi, my mouse clicks were faulting a lot, since I had a spare one, I decided to buy new switches/clickers and replace it.
First time desolding things and didn't know that for solder through hole you need to add solder to make it easier. So I asume I put to much heat forcing the tip inside the...
Hi all.
I have a Pioneer VSX-324 AV receiver whose only problem is the power button.
Schematic of the receiver: https://www.manualslib.com/manual/1027739/Pioneer-Htp-072.html?page=1#manual)
The problem I'm having is that when I use the remote to turn on the receiver, I just hear a click, but...
I am doing this small project and I want to by pass the power button on the the device. I have it plugged into a half hot receptacle and want to turn it on with the light switch that controls the half hot receptacle. I am not familiar with circuit boards at all and not sure where to start. Any...
Here is a power circuit board mystery to solve!
For 3 months now I have been trying to repair and error search Harman Kardon 220 sub power circuit board without any luck at all. Therefore I need some more electric minds and brains to solve this problem. I will attach the schematic below with...
I am a beginner in the whole circuit board world and need some help. Well alot really. I am trying to make some to help me in work as Ac tech. I have a drawing of what I am trying to make but not sure the best way. I have checked Amazon for different parts I need but think it will be more...
PROBLEM:
24 SMD COB LED has too much illumination drop off over 3 hours. Currently powered by four 3V button batteries.
PREFERRED SOLUTION:
Get this battery powered LED to perform more consistently over a few hours.
THE STORY:
I’m working on a little project at home for a custom...
Hello guys!
I found this board with 25W + 25W audio output and I found that this thing has a switch controller for music and volume. But I couldn't find how to solder them. Is there anyone who used this board? Could you please help me with a diagram?
Hi guys, I’m working on repairing some electrical issues on my old car.
The gauges are a bit wonky, some don’t work and on the special occasion that they do they bounce up and down.
I am currently going through the wiring of the car, but one issue I (may) have found is the check control box...
This is a circuit board for an LED head light flashlight. It has a hi, low, and stobe feature. I would like to disable the strobe feature. I am an amature, please help.
Hello,
First of all, I'm totally inexperienced, and just someone trying to salvage a device if it's doable.
I was trying to disconnect the HDD cable out of its port, but the whole thing came off with the connectors still soldered to it. I got some advice telling me it's an easy fix but I'm...
I collect old vhs, and recently got some cool gimmick ones that light up when you press a button. However, they are almost 30 years old and no longer work.
Taking a look at the pcb both were heavily corroded. I scraped off as much green corrosion as I could and replaced batteries but no luck...
Hello my fellow members,
I have several Reconyx trail cameras that are broken and I am hoping someone can help me with. They cost around $600,- per camera and I am not able to send them out for warranty. These cameras are used to capture photos of wildlife (jaguars, tapir, etc.) and are...
Hello everyone, I am new on the forum. I have a older kenwood kac-7251 2 channel amplifier. It still works great except one problem, it is causing a parasitic drain on my battery. Started about a month ago, I am a auto and diesel technician so I checked parasitic draw, pulled my amp fuse and...
Hey guys,
This is my first post and I am happy to have found this website. I am currently working on a project using a PCB and jumper wires to make a 48v Phantom Power supply to be used with multiple condenser microphones. To make a long story short, I found a "mostly" detailed post on another...
My **broken link removed** stopped working. It blinks white (and then black) when plugged in, regardless of which type of which input plug I use. I know the monitor is the problem because my other monitor, which is the same make & model, works perfectly fine with the same inputs (knock on wood)...
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