Its me again....I got another set of the Retro Duo today(Black model)...I did some comparison side by side between the 2 models(White/Black),and found just a few differences.It seems to be more than one revision made to the Retro Duo mother board.The only change that I noticed between them was just a chip...For some reason the controllers included with the white model are better responding than the ones found with the Black one,specially with fighting games such as Street Fighter II where you have to make all sorts of moves...The white system cartridge ports seem to hold in place the games better.The cartrige ports found in the Black model are a bit more loose when inserting a game...the s-video signals provided by the white model are just a notch cleaner than the black one,but the sound is much better within the black system.They both have the same Samsung RGB encoder!...If you are curious to see what the Retro Duo motherboard looks like,take a look!...
http://usera.imagecave.com/capcom2000/HPIM5847.JPG
There is a clock missing in both of the boards but I'm thinking that it may be for the PAL systems.
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