Apr 252011
The Naomi has a 0.1F super capacitor on board labelled C29, in between the button cell battery and the 8 pin DIP labelled 315-6188. This capacitor is a usual suspect on a broken board as it is prone to leaking and damaging the traces to the serial EEPROM. If you own a Naomi board (not sure if it applies to the Naomi 2) you should check the condition of this cap and replace it.
The capacitors can be ordered from the links below:
CPC
Farnell
Mouser
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