This is the car charger for my iPhone. The yellow swirls light up when it is working. That happens only intermittently. I decided to see what could be done.

Step 1: Open the case

I cut around the top end of the charger with an abrasive cutting wheel on a Dremel tool. See the dotted yellow line I added to the photo.

  • Dremel tool
  • Wire cutter
  • Knife for stripping wire
  • Soldering iron
  • Hot glue gun
  • Wire
  • Solder
  • Hot glue
Well done, Bill. <br> <br>A friend told me that almost all electronic failures are due to poor or broke solderings. In fact, there is a procedure named &quot;reballing&quot; for notebooks, that consists in retouch all solders in the circuit.
Just a few years ago a friend had a particular Dell laptop computer that suddenly shutdown when it had been in use for a few minutes and the motherboard began to warm up. He looked on the Internet and someone had discussed the problem. A solder joint at one of the integrated chips broke at the circuit board. Simply touching that joint with the tip of a soldering iron fixed the problem. I think he may have made the joint stronger, too.
Even something as simple as putting an alligator clip between your solder joint and diodes or other electrical components can dissipate heat sufficiently to protect them during soldering. <br> <br>Even better, add some metal to a clip to act as your regular heat sink. Electronics stores sell little clips for this purpose too.
Thank you for looking at this and for commenting. The little diode is right up against the area that needed to be soldered with no room to spare. I do have a little spring clip heat sink I bought at Radio Shack, and it has always been helpful. Many years ago I built a kit for an automotive dwell-tachometer from Heathkit. For a heat sink I put a sturdy rubber band around the handles on a needle nose pliers. It was a little clumsy, but worked quite well.
nice job phil
Thanks, Jim. We will be in the car for about three hours today. We will give it a complete test then.
Nice pics.<br> What I learned here is,&nbsp; .........&nbsp; IF a bad one crosses my path ; <ul> <li> Go get a replacement immediately <li> Re-purpose the bad one to drive an EL wire display <li> Hang a striking EL display on my Burning Man RV </ul> <br> A
Thanks. That would work. Concerning the photos, I made a reflector to bounce light from my flash upward toward the ceiling with a piece of brushed aluminum, and I make the photos in a small room with white walls and ceiling so that the whole room acts like a light tent.

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Bio: I miss the days when magazines like Popular Mechanics had all sorts of DIY projects for making and repairing just about everything. I am enjoying ... More »
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