Ntsc-j models

[blktgr74]

I bought 3 ntsc-j dreamcasts the other day and im wondering if there is any difference between the 3000 and 3010 models? Which one is the best to rebuild/use? I have a 220v psu coming to put in it and I plan to use it for my import games.
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[BionicKoalaBoy]

I don't know about the tech differences, but the 3000 is the older of the 2, though I suppose that make sense doesn't it?

HKT-3000 - NTSC-J Dreamcast Initial Launch Version
HKT-3010 - NTSC-J Dreamcast
HKT-3020 - NTSC-U Dreamcast
HKT-3021 - NTSC-U Dreamcast Demo-Kiosk
HKT-3030 - PAL-E Dreamcast

[blktgr74]

As it turns out its just a 3000 case with 3010 internals. These dreamcasts are out of arcade machines and there is a funny looking chip called a mode chip 3 patched onto the main board. Does anyone know anything about these chips?

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