Damn, how many DUO's have been dying? This is really sad. We should have a graveyard to remember the fallen consoles (and handhelds! I haven't forgotten that many TurboExpresses / GT's have had problems).
I've lost four to the plague.
1.) PCE-Duo b. 1991 - d. 2001
2.) PCE-Duo b. 1991 - d. 2002
3.) PCE-GT b. 1990 - d. 2005
4.) PCE-GT b. 1990 - d. 2005
Holy crap, 4 systems???
What was the problem with the GTs?
The first GT I bought from a HK seller, and it came DOA. Nothing I can do about that. I sold it on ebay. Beware of ebay seller from HK.
The second GT I bought from a forum member here. It was working fine out the box, and it looked in mint condition. I played it for hour and the display went dim, then dark.
I turned it off and on a few times thinking it was just a glitch. Whenever I turned it on the display was always dark. I tried to increase the brightness but it had no effect. Eventually the GT died two days later, it never turned on again.
I suspect the previous owner ( or owners) used the wrong AC adaptor or used rechargeable AAs. I really do think recharageable AA will degrade the longevity of the GT.
Currently my GT and TE (thanks D-Lite) are working like champs. I'm using a ext. rechargeable battery pack 7.2volts 2800 mah via power input. No problems so far.