Hot Electronics Posts

How To: Fix a compact disc player drawer problem

When CD and DVD players stop working, it's usually because of the drawer not opening and/or shutting. For this CD player, the problem turned out to be a broken belt between the motor and the wheel that has the gear that opens the drawer. Look at these two video tutorials to see how easy it can be to fix, by replacing one belt with a rubber band.

How To: Hack an LCD screen & overhead into a digital projector

Digital projectors can be prohibitively expensive, particularly for those who stand to benefit the most from their use—that is, young people who prefer watch television and movies on their home computers. No longer. This hacker's how-to demonstrates how to make a simple digital video projector out of an old LCD flatscreen monitor and a slide, or overhead, projector. For detailed, step-by-step instructions on fabricating your own LCD/overhead digital projector on the cheap, take a look!

How To: Fix the Hold button on an Apple iPod Classic

Accidents will happen. This brief how-to will guide you through the process of disassembling, cleaning and reassembling an iPod Classic quickly and efficiently without damaging any of the components, the first necessary step of any successful repair. You'll then see how to go about fixing a faulty Hold button. This tutorial will also be of use to those who wish to learn more about the guts of their iPods without actually disassembling their units.

How To: Use zoom and telephoto lenses on a Canon DSLR camera

Need a primer on how to use zoom lenses with your Canon DSLR camera (a 7D, 5D, or Rebel T2i, for example)? This brief video tutorial from the folks at Butterscotch will teach you everything you need to know. For more information, including detailed, step-by-step instructions, and to get started using zoom and telephoto lenses on your own Canon digital camera, take a look.

How To: Modify the iPod Video interface to look like Classic

Make your old iPod Video look like the new iPod Classic. This is a tutorial on how to change your iPod Video (5G/5.5G) to a iPod Classic interface. Your iPod must have the 1.2.1 firmware or lower. But don't worry you can downgrade your 1.2.3 by writing The Ultimate Background Hack 1.2.2 You get the background hack and it downgrades your iPod to 1.2.2. You can use any other custom firmware. Watch this video iPod tutorial and learn how to modify an iPod Video to use the iPod Classic interface.

How To: Calculate compound interest using a TI-84 and solver

This is a video tutorial in the Electronics category where you are going to learn how to calculate compound interest using a TI-84 and solver. Press the apps button on the calculator and press enter to load the TVM Solver which is the 1st choice. Here the meaning of various notations are N is time, I% is the percentage, PV is present value, PMT is payment, FV is future value and C/Y is compounding period. The problem is find the compound amount and the interest earned on $12,903.45 compounded...

How To: Solder speaker lead wires

In this video tutorial, viewers learn how to solder speaker lead wires. Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal into the joint. Viewers are shown how to solder speaker lead wires to the terminals. This video also shows how to solder two wires together and how to solder a wire to a slip on terminal. This video will benefit those viewers who want to learn how to solder and be able to repair other electronic devices.

How To: Set up a hidden camera system

This video shows you how to set up a mini wireless spy cam. Where you put it is up to you. Who you spy on is up to you. If you're wanting to keep an extra set of eyes on someone, watch and learn. So whether you're looking to put a camera in your bathroom or garage, go for it.

How To: Restart a frozen iPod Classic or iPod Video with the Menu & Center buttons

If you still have one of the older iPods, like the iPod Classic or the iPod Video, then you might have some problems with them freezing up occasionally. If that does happen, this video will show you the quick steps to restarting your Apple iPod by pressing and holding the menu and center buttons. If you this doesn't work, you can try restoring the software via iTunes. If that doesn't fix the frozen iPod, then you'll need to contact Apple or a repair technician.

How To: Make a burning laser pointer that produces heat

In this video tutorial, viewers learn how to make a burning laser pointer. Users will just need a regular 5Mw green laser pointer. Begin by unscrewing the top of the laser pointer and take out the batteries. Carefully with a pair of pliers, break the glue seal and remove the laser. Using a micro screwdriver, make sure that the screw on the laser is tight. Now using a soldering iron heat the 03 component shown in the video for a few seconds. Then assemble the laser back together. This video wi...

How To: Unlock a locked iPod

In this video tutorial, viewers learn how to unlock a locked iPod. Begin by connecting the iPod to your computer. It should fix itself automatically. If it doesn't press the Start button and select Control Panel. Click on Appearance and Personalization. Under Folder Options, select Show hidden files and folders. Check the box that says "Show hidden files and folders". Click Apply and then OK. Go to My Computer and open the iPod device. Select the Controls folder and click on Device. Delete th...

How To: Operate the Nikon D90 digital camera

Watch this instructional video brought to you by Nikon's Digitutor to learn how to operate the Nikon D90. This Nikon D90 video tutorial demonstrates how to attach the camera strap, use basic features and use the different shooting modes (auto mode, flash photography, scene modes, P, S, A, and M modes, and adjusting settings). Use this Nikon D90 tutorial to familiarize yourself with your new digital camera. Operate the Nikon D90 digital camera.

How To: Strip your Casio fx-82MS calculator

Take a look at this instructional video and learn how to take apart a Casio fx-82MS calculator. First, you'll need to get a screwdriver the take off the calculator's backplate. Make sure not to misplace those screws afterwards. You should be able to see the motherchip after taking off the plate, this is the next item you'll want to remove. These screws are extremely small so it might be best to use a knife to unscrew them. Lift the motherchip and take out the rubber key pad off. To put it bac...

How To: Clean your scratched compact discs with peroxide

This video shows you how to clean a compact disk using peroxide and toothpaste as the cleaning agents.First of all, put the disk in a mixture of water and a bit of peroxide and let it stay there for about 5 minutes. Then, you must take out the disk and apply a thin layer of toothpaste on the whole disk's surface. Let it sit like that for another 3-5 minutes. After that, clean the disk with water. Use it only when it is dry. If this method does not work, then you should either take the disk to...

How To: Fix a frozen iPod Classic or Nano

This video describes the procedure of how to unfreeze, or reboot, an iPod Nano or classic. When an iPod of the Nano or classic design is frozen (not in temperature), and has a stuck screen, the procedure of how to unfreeze the iPod Nano or classic requires the user to press down the middle button of the iPod interface, and the menu button of the iPod. Keep the buttons depressed for the duration of approximately eight seconds until the frozen screen goes away, and is replaced with the Apple lo...

How To: Replace an iPod battery without any tools

This how-to video demonstrates an easy, no anxiety, no pain way to replace an iPod battery that will have your iPod running for the other 2 years. These video instructions are good for: Ipod Video 30,60,40,80GB or Ipod Classic 80,160GB; as they all have the same structure. Watch this video iPod tutorial and learn how to change the battery on an iPod without using any tools.

How To: Make a laser out of a lighter

Kipkay has a new cool project for you. In this video, you'll learn how to make a laser out of a lighter. All you need to do is a cheap butane lighter. Any one will do, including one bought from a convenience store. Just watch this how-to video, and you'll be playing with your laser pointer in no time at all!

How To: Use a universal remote control

In this home entertainment video series, learn how to use a universal remote control. A universal remote is just what it sounds like: it’s a device that allows you to control several different home electronics appliances at once—like the stereo, DVD player, VCD, TV, satellite dish, etc. The complexity of the remote can vary, but in this day and age, it’s probably a good idea to have one. Our expert will walk you through some of the basic functions and buttons, including how to program the uni...

How To: Mount a Canon 5D Mark II on a Glidecam 4000 HD

Dave Williams from Lens Rentals demonstrates how to properly affix a Canon 5D Mark ii to a Glidecam's 4000 HD rig. Laying out all the included parts, he explains how to assemble and balance the rig with the camera attached. It's important to note that you'll need to rebalance the camera with each modification: lens, follow focus, filter, etc.