Camera Battery Charger Repaired Part 2
I went to take some pictures with my camera and the battery was dead. So I put in a fresh battery and put the dead battery on my charger, and the charger was dead – again! Those that remember my last article fixing this charger will remember that it had bad solder joints on one or both through-hole inductors. You will also remember that I purchased a new battery charger with extra batteries on Ebay. Below is the first article:
As you can see in the picture, the LED is not lit, indicating that the charger is not working. So let’s see what is wrong this time.
I took it apart pretty easily this time by carefully hitting a screwdriver with my hand to break the 4 drops of superglue on each corner of the case that I applied after the first repair. I looked over the PCB and components on the board and did not see anything wrong. Rather than start taking off components and checking them, I decided to assume that I had more bad solder joints.
So I sucked the old lead-free solder with my Hakko 808 de-soldering pump on the mains connector, fuse, R29 resistor, and the other e-caps that still had original non-lead solder on them. Then I soldered them back with good leaded solder.
Success, it is working again!! I was right about there being another bad solder joint! The other battery in the first picture is being charged in the new charger that I bought, so I used this extra battery to test this charger with.
This article was prepared for you by Robert Calk Jr. from Texas USA and he is a Hobbyist that loves learning & repairing electronics. He welcomes any comments and suggestions you care to contribute.
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