Comments on: Jyetech AVR digital oscilloscope DIY KIT — trying to fix it – part 2 http://blog.spitzenpfeil.org/wordpress/2009/08/09/jyetech-avr-digital-oscilloscope-diy-kit-trying-to-fix-it-part-2/ "Another visitor! Stay a while. Staaaaay, FOREVER!" Thu, 09 Feb 2012 21:40:19 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: robert http://blog.spitzenpfeil.org/wordpress/2009/08/09/jyetech-avr-digital-oscilloscope-diy-kit-trying-to-fix-it-part-2/#comment-425 robert Mon, 14 Dec 2009 18:03:24 +0000 http://blog.spitzenpfeil.org/wordpress/?p=2036#comment-425 For desoldering I used a low melt Bismuth alloy sold under the brand name 'ChipQuik'. A small test set is very affordable and the alloy lasts quite a while, as you only need very little. The supplied flux runs out much faster. It stays liquid for several seconds because its thermal conductivity is very low. It keeps the heat. I've written a short <a href="http://blog.spitzenpfeil.org/wordpress/2009/08/04/note-to-self-26-0v-2-60v-a-short-chipquik-review/" target="_blank" rel="nofollow">review</a> about it. Regarding the scope. It seems that the latest firmware runs pretty well on it. It may be an old revision board (also the front panel cut-out was too small for the LCD) and maybe tight timings in the code made it run unreliably. I don't care anymore ;-) For desoldering I used a low melt Bismuth alloy sold under the brand name ‘ChipQuik’. A small test set is very affordable and the alloy lasts quite a while, as you only need very little. The supplied flux runs out much faster. It stays liquid for several seconds because its thermal conductivity is very low. It keeps the heat. I’ve written a short review about it.

Regarding the scope. It seems that the latest firmware runs pretty well on it. It may be an old revision board (also the front panel cut-out was too small for the LCD) and maybe tight timings in the code made it run unreliably. I don’t care anymore ;-)

]]> By: Alan Parekh http://blog.spitzenpfeil.org/wordpress/2009/08/09/jyetech-avr-digital-oscilloscope-diy-kit-trying-to-fix-it-part-2/#comment-424 Alan Parekh Mon, 14 Dec 2009 16:43:09 +0000 http://blog.spitzenpfeil.org/wordpress/?p=2036#comment-424 Great video. I felt your frustration just watching the video, I felt like throwing something (I am surprised you didn't)... What type of solder are you using? It seems to have a very long working time. I would have expected the chip to be affixed when it moved on you. Great video. I felt your frustration just watching the video, I felt like throwing something (I am surprised you didn’t)…

What type of solder are you using? It seems to have a very long working time. I would have expected the chip to be affixed when it moved on you.

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