Batteries are one of the most widely used sources of energy in portable electronic devices. Those batteries can leak when they’re left to devices for too long or disposed of improperly. Battery leakage is annoying and usually damages your equipment. Here Duraleak strike again… Why do batteries leak? Under normal conditions, the chemicals inside a →
I got few years ago this cheap USB powered mosquito trap. The idea in it is that Blue/UV light gets the mosquitos to go near the device, and then the device sucks them away. This product was cheap, but was not very effective. When I tried this device this summer, it did not seem to →
In jet printer is affordable, versatile and great at printing photos and graphics. But they have also set of problems. Troubleshooting common inkjet printer problems needs to be done too often. The most common problem with inkjet printers is not printing at all, poor print quality and the ink being very expensive. Usually print quality →
Very many battery packs are built using standard size cells inside the plastic package. When cells go bad, it is often possible to replace the cells with new one either as DIY project or have some repair company to do that. Usually my option one is to find replacement battery for devices, and if it →
“People want everything to be a lot more repairable than it is now.” While there’s still a long way to go, advocates say, European thinking on the topic appears years ahead of that in the United States. Specifically, Europe’s new regulations demand that manufacturers of washing machines, dishwashers, refrigerators, and displays (including televisions) make spare →
A microwave oven is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range (typically around 2.4 GHz). What is the circuit diagram of the device →
DMX stands for Digital Multiplex DMX512 (Digital Multiplex) is a standard for digital communication networks that are commonly used to control stage lighting and effects. DMX can now be used to control almost anything, reflecting its popularity in theatres and venues. I have some DMX-512 controlled lights and also built some DMX-512 hardware myself. I →
A lot of people are asking for the right to repair. Many people believe products should last longer, and therefore when broken, they should be repaired. This requires products to be designed for repair as well as support for repairers of all kinds. The goal of right-to-repair rules, advocates say, is to require companies to →
In electronics, desoldering is the removal of solder and components from a circuit board for troubleshooting, repair, replacement, and salvage. There are many techniques how to desolder. Check out videos How to Desolder Through-Hole Parts, Why Some Joints are Difficult and Desoldering Components – Tips and Tricks. Desoldering tools and materials include the following: Solder →
Test with multi-meter that it is not short circuited. Test with capacitance meter that capacitance value is correct. If this is an electrolytic capacitor I measure ESR. With some electrolytics I charge them to nominal voltage with power supply and measure charging leakage current or the rate it self duscharges. If it is a small →