06 December 2010

Along the Kromme Rijn

Had a nice stroll along the Kromme Rijn this morning and was surprised to see this duck:
A quick check on the internet learns that it's a Mandarin duck (Dutch: Mandarijneend), which is fairly rare .. but more importantly rather pretty.
A few metres further, I spotted two Cormorants sunning (Dutch: Aalscholver), unfortunately, I didn't manage to get a photo with their wings extended:
And on another note, just spotted the "Gemeente" gritting our street (a first !). Having said that it is an ice rink at the moment and getting the kids to school this morning was quite an adventure (Sophy had two small falls ..).

05 December 2010

Power to the DS !

Back again, with more tales of repair.

Timothy's Nintendo DS Lite had stopped working .. no reaction to the power button with both screens remaining dark (and no sounds). Rather than treating it as a disposable electronics item, I gambled that I could successfully take it apart and fix it: I believe in one simple truth:
In my experience, 95% of all electronical / electrical failures are due to a mechanical problem. Mechanical problems can be found and possibly repaired.

Fortunately their are quite a few sites showing how to take the Nintendo DS Lite apart, the only annoyance being that you need a special 'tri-wing' screwdriver to do it.
In the end, I managed to remove two of the three tri-wing screws using a regular flat screwdriver, unfortunately one resisted and had to be removed 'less elegantly' (damaging the casing). So this is what Timothy's DS looks like inside:
I'd found a site telling of a standard fault of blown fuses, but checking those found no error. Then I decided (with multi-meter ready) to check the circuitry. After a short while, I noticed that the power switch was broken: a small tab which connects to the power slider within the casing had broken off (i.e. another example of a mechanical failure):
(The strange thing is, that when testing the DS (still intact), the lack of return spring on the power slide was not noticed .. although it was late when I was working on it ..??).

Anyhoo. I read somewhere of someone fixing the switch by jamming / smelting a bit of paperclip into the switch, and of someone wiring up an external switch, but I decided to just replace the switch (at a cost of only EUR 3,39 (excl. shipping)).  Just to make sure that the problem was the switch, I switched the DS on, using a wire bridging the points. In my experience, switching on, relies only on connecting point 1 with the ground:
I had read (on a Flickr photo report) of the problem of removing the old switch without damaging the circuit board, but even with my fairly large soldering iron I managed to remove the switch, albeit in pieces (I had a quick experiment with a mechanical removal with the Dremel but this was way too destructive).
Having said that I did manage to remove all solder from the right point 2 and point 3, but that didn't stop the new switch from operating properly: installed below:
Putting it all back together was a bit of a fiddle, but I managed .. and now Timothy is the happy owner of a working DS (thanks Dada):