In a re-make of the Microsoft X-Box adaptor recall, Sony are now recalling some adaptors supplied with the black Slimline PS2, as this Press Release states:

Certain AC Adaptors, identified as manufactured between August 2004 and December 2004, and supplied with the black slimline PlayStation 2 models SCPH70002, 70003 and 70004 may overheat and cause an injury hazard to consumers. It is likely that some of these units may have been on sale after this date. No other PlayStation 2 units are affected.
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