I wanted to see the limits of the current method so I set out hunting a board template for that.
Electronics and programming interspersed at various levels of difficulty. Cooking analogies might be involved.
Thursday, August 8, 2013
Wednesday, August 7, 2013
SMD breakouts and etching tutorial
Friday, August 2, 2013
Follow-up on 2x DVR repair
I was scoping around to see what caused the 2.5V supply modules to go bust.
Just as a reminder, they are pretty generic modules, with a 5V preregulator that steps down the 12V input. The 5V is then dropped through linear regulators to three supply rails of 1.8V, 2.5V and 3.3V. In this application only the 2.5V output is being used.
Just as a reminder, they are pretty generic modules, with a 5V preregulator that steps down the 12V input. The 5V is then dropped through linear regulators to three supply rails of 1.8V, 2.5V and 3.3V. In this application only the 2.5V output is being used.
Thursday, August 1, 2013
Ancient DVR teardown - Dallmeier DLS 6
I just bought a cheap broken DVR from eBay and thought to share pictures from inside the unit since there aren't any on the Internet.
It was a state of the art unit at the beginning of 2000, probably costing several thousands of dollars. Some documents and review from that time praise the wavelet-type encoding quality and savings, custom-made ATX power supply and build quality. I beg to differ on a few fronts.
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