Electronics Sales

Archive for the ‘Kitchen Electronics’ Category

An overview from Abt Electronics of the major things to consider when purchasing a refrigerator.

Dealtoworld.com Unboxing Electronic Kitchen Scale www.dealtoworld.com

Sometimes things just fix themselves. Whether or not it’s enough to stick and stay fixed varies…some devices need more convincing than others. I think the biggest problem here was the long time this player sat around without being used. It looks to have been a very high quality unit and would easily exceed the performance of some modern high end CD players. Anyway, never underestimate what a good car ride and some cleaning can fix…!

Ever find a device just full of leaky batteries? Forgotten about batteries in a device and come back only to find them leaking? This video shows how to solve the problem. Usually the damage can be fixed with some careful effort. In cases where you can’t remove the battery holder or see the terminals, you may be able to remove a circuit board and expose the battery terminals that way. Very often, the battery terminals are coiled or sprung pieces of metal that are soldered to an underlying board or will pull out of the plastic holder

One works, the other doesn’t. Both have bad capacitors. Curiously, the Aopen motherboard uses Nippon Chemi-Con capacitors at every location where one is needed…everywhere except those three locations, where no-name caps are used. The Samsung LCD panel was dead to the world and only hissed when plugged in. Switchmode power supplies tend to make noises at times, particularly when they’re having trouble staying in regulation. At that point, the switching frequency may drop into the range of our hearing. Turns out it was more bad caps. Some repair shops told the previous owner that it wasn’t worth fixing. I told them it was, and that I surely could. They told me to haul it away anyway.

A beeah-music unplugged concert evening in a flat in Berlin! This is part 3 of 8: Sebastian Arnold performing in the kitchen! Sebastian Arnold: synthesizers, loops, melodica. www.myspace.com www.beeah-music Check out www.beeah-music.net for more information about the artists and all parts of the series.

This receiver had a nasty fall and no power after that. The price was very right, so I decided to look into it and see what was going on. Sony could have used more support and bracing in the construction of this receiver, but to be fair, no stereo receiver designer expects their product to fall off of a shelf. I do tend to prefer the Sherwood receiver compared to this one. The Sony seems a little more powerful, but I’d give the Sherwood better marks for construction quality. And even though it took a lot of asking, Sherwood sent me a service manual for free. Sony customer service was rude about it the first time and theirs will cost .

Sometimes an electronic device has been so badly maintained that you wonder if you ought to just send flowers… The linear tracking would stick periodically after I first got it unstuck. Helping it along would get it going again for a while. I fixed it by SPARINGLY applying grease to the sliding track. There is also a drive belt that may need to be checked. This is a common problem (from searching the web) and here is the fix. Here’s a find from a used audio equipment sale benefiting public television and radio. This was in sad shape. The tag attached to it stated that although the turntable ran, the stylus and tone arm never moved. It cleaned up well and the tonearm assembly only required grease. This unit appears to date from the late 80s. An Ortofon TM14 stylus and cartridge are installed and seem to be in good working order.

Here’s a video explaining how remote keyless entry works, how the remotes usually break, how I fixed this one and how I tested it even though I did not have the car around at first.

In fixing the DC/speaker protection relay in the Technics SA-929 receiver, I sorta-kinda broke it by getting too crazy with the relay while popping the cover. It didn’t require the amount of violence that most relays do (ten points for Matsushita!) but enough turned out to be too much for those solder joints. While in there, I also noticed a burnt out bulb and some curious wiring between the speaker connectors and power line. Now it looks and plays like new. The Sansui tuner (another find from the secondhand audio equipment sale) worked fine if you didn’t mind the vacuum fluorescent display flickering on and off. I fiddled with this first and fixed that problem by reconnecting all the tinned wires I could find. (Each of the tinned wires plugs into a plastic connector, something that also showed up in the Pioneer tape deck.) After that, the display was solid but a light bulb responsible for illuminating some buttons kept acting up. As it turned out, there was cracked solder on one of the bulb legs. Someone was in there before me, as several of the VFD pins had also been retouched.