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For electronic devices use a low wattage soldering pencil type

May 18, 2014

Things to Look For if your Appliance Stops Working

cheap Canada Goose This Entry will cover some basic techniques for troubleshooting common problems with small electric and electronic items items, hopefully without electrocuting yourself in the process. cheap Canada Goose

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canada goose clearance sale Speaking of electrocuting oneself, before we go any further we should have a little talk about safety. Unlike in the days of vacuum tubes1, most electronic equipment today operates canada goose outlet store toronto on low voltages, however, they actually use mains electric that is converted to a ‘safe’ voltage internally or externally by one a wall adapter. Just because the electronics themselves run on 5V does not make the whole device safe. canada goose clearance sale

buy canada goose jacket cheap Always make sure equipment is powered off when you are working on it! There is still be the possibility of large current flows which could cause fire or burns, or more likely, you will cause damage to the equipment itself when you drop a screw inside or cause a short circuit as you poke the innards with a metal tool. This means not just turning off the power switch but unplugging all power cords and other cords and removing batteries. If the device is solar powered, only work on it at night2. buy canada goose jacket cheap

Still talking high voltage, modern electronic circuitry such as that in computers, radios, and calculators, can be sensitive to the high voltages that are generated by static electricity. The static canada goose outlet online uk charge you build up can easily damage the components inside this equipment if you should touch them. A common canada goose stockists uk example would be installing or removing a circuit canada goose outlet in vancouver board in a computer. There are conductive wrist straps and mats that you can buy to protect equipment from static voltages, but if you want to avoid the expense, you canada goose premium outlet will generally be safe canada goose factory outlet if you touch the metallic case of the equipment (eg computer) before touching any of canada goose outlet uk sale the internal components.

Some equipment contains more dangerous stuff: lasers, microwave ovens, radio transmitters, etc. Most smoke detectors contain a small piece of radioactive material. You should just stay clear of these and leave them to an expert.

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cheap canada goose uk canada goose factory outlet toronto location Small power devices using less the 5W are mostly safe (unless high voltage is involved). cheap canada goose uk

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uk canada goose outlet canada goose outlet factory While almost everything has the standard ‘no user serviceable parts inside’ label, there are some items canada goose outlet england that really aren’t designed to canada goose outlet usa be canada goose outlet online store repaired. canada goose outlet legit Some may be permanently sealed shut, or may contain many tiny parts that are virtually impossible to get back together. Some may require special tools like a star shaped screwdriver to open. If in doubt, don’t open it up. uk canada goose outlet

Some appliances have specific discharge resistors fitted to make things safe in a few minutes, some seem to rely on natural leakage, (and some ovens even have a nice label inside saying something like ‘Unplug and leave to discharge for X minutes before coming near this area’). Just about anything that is mains powered and electronic is likely to contain big capacitors in the power supply that could give you a belt if you don’t discharge them first, even when unplugged. Not enough to kill you directly, but enough to canada goose outlet edmonton make you drop whatever you’re holding, jump back and hit your head on something etc. The same applies to mains filters and simple mains/battery devices like shavers.

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canada goose uk shop This Entry is mainly about small electronic devices such as radios, small appliances, toys, telephones, etc. Larger items like washing machines and refrigerators have electronics but obviously have a mechanical aspect to them as well. Use common sense in deciding if you are capable of tackling these items. For a small inexpensive item you have little to lose by trying to fix it, but think twice before working on something valuable or difficult to replace. You probably wouldn’t take apart a gold pocket watch or car engine just for fun, so think twice about opening up that new DVD player or camcorder just to see what makes it tick. canada goose uk shop

canada goose Surprisingly often the problem may be something so obvious that it’s overlooked. Is it plugged in? Are you sure it is getting power? (plug something else into the same outlet to make sure). If connected with a power bar, is the power bar plugged in, turned on, and known to be working? Can you swap the power cord with one that is known to be good? canada goose jacket outlet uk canada goose

canada goose store One of the first things to check (if the thing is completely dead) is the fuse in the plug, followed by any canada goose factory outlet vancouver fuses accessible from the outside of the device. Always replace a fuse with one of exactly the same type and rating. canada goose store

canada goose coats More complex devices with many switches, like clock radios, may appear to be non functional because the switch settings were changed. canada goose coats

Canada Goose Parka With battery operated items check or replace the batteries. canada goose outlet vip Don’t assume that the replacement batteries are good test them. Make sure the batteries are inserted correctly. Are the batteries loose? Sometimes batteries fail to make contact, and this can be corrected by slightly bending the clips that contact the battery. Make sure the batteries are of the correct type, this can be the case for items like watches and calculators where there canada goose outlet uk are many similar types. Rotate the batteries in place to clean the contact areas (try this before bending the clips they may break on trying to bend them). Also check canada goose outlet black friday the contacts for corrosion as sometimes a white oxide canada goose outlet is present on the surface. Canada Goose Parka

canada goose canada goose sale uk clearance Digital multimeters can be bought inexpensively at most hardware or building supply stores. These will let you measure voltages as well as checking continuity of wires and fuses. Use caution when measuring voltages. Less expensive is a neon test lamp that can quickly determine if power outlets are working, although it is also very much less reliable; parasitive conductance may lead you to think a line is live while it is not. It also only works for potentials above 63V. To fix broken wires, you will need a soldering iron. For electronic devices use a low wattage soldering pencil type, not canada goose parka uk a soldering gun as canada goose outlet eu this will overheat and damage sensitive components. Do not use the acid core solder intended for plumbing, the acid will slowly eat away at the wires. canada goose clearance

canadian goose jacket You are not realistically going to be able to unsolder that Pentium chip from your computer and put another one in. The surface mount technology used in most computer circuitry is manufactured using robotics. You can however do some maintenance that may avoid problems before they occur. Computers tend to accumulate a lot of dust inside which can make the fans less efficient at cooling. Opening up your computer and cleaning it out is recommended every few months, depending on how dusty the conditions are. canadian goose jacket

canada goose coats on sale A vacuum cleaner is not recommended it is too powerful and can generate static electricity. The experts use cans of compressed air to blow the dust out, unfortunately these cans of air are quite expensive. Being dry and usually not strongly adhering, a little bit of directed exhalation often removes most dust clogging up CPU fans, etc (though breathing in again before getting your face out of the dust cloud can be unpleasant), or try a small brush. In a pinch you can just pull the largest of the dust balls out by hand. Make sure the fans are clear of dust and running smoothly. A shot of spray lubricant can do wonders for ageing fans. canada goose coats on sale

Canada Goose Outlet The fan mounted on the CPU chip often fails after a couple of years. If you hear strange grinding sounds from inside the computer, the bearings in the fan have likely worn out and are about to fail. You should replace the fan as soon as possible, otherwise the expensive CPU chip will likely fail due to overheating. Canada Goose Outlet

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Canada Goose Online A common problem with older or lower cost audio equipment such as stereos, portable radios, and CD players is that the controls for volume, tone, or other settings become noisy. Often this can be fixed using contact cleaner, or try simply running them quickly from one end to the other a few times can clean the track and/or wiper, and remove most or all of the crackle. Loud speakers often fail because of the wires coming loose from the contacts inside. This can happen when speakers are moved around a lot. Canada Goose Online

Canada Goose Jackets One fixable problem common across a range of manufacturers and models is headphone sockets on personal music players becoming unreliable due to failing connections between the circuit board and PCB mounted socket. Just sweating the solder with an iron often fixes things, and a little more solder almost always does (for this sort of repair, a set of jeweller’s screwdrivers is invaluable). Canada Goose Jackets

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