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Hi guys!

I changed 5 electrolytic capacitors ... nothing.

The damn thing fails in the same way.

You have any idea?

Thanks in advance, again!

I have already made some progress in the analysis of failure of the Dragon. A friend left me his Dragon 32 to exchange components and the result is this: After... - Change of external transformer - Change CPU - Switching Multiplexer - Changing rectification "daughterboard" (Being Dragon 32, the volt...

I have found that the voltage values are correct: Input: 9V Output: 5V (Before and after freezing this shows same results). checking the surface of the motherboard, I found these weird things: http://i63.tinypic.com/102nwub.jpg Shows an icy surface, crystallized. :shock: http://i65.tinypic.com/6td2m...

Hi again! Here I am with more data to share,



from top to bottom (regulators pins):

-11.90V
-18.20V
0V

+11.85V
0V
+18.21V

Do you see correct voltages?

Thanks in advance!

Joe Morgan

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Hi guys! Let me introduce myself. I am a retro-computing lover and its gadgets since the early 80. My computer inclinations are (in order of appearance ;) ) Atari VCS , ZX Spectrum, Dragon 64 (Eurohard's), IBM XT Clone, Megadrive, more PC's, Dreamcast and everything else! I play, collect something a...