My GOD! That's one sick PC Engine Duo right there. It almost seems as though the quality of NEC's hardware got worse every time something's released. Think about it:
-TurboGrafx/PC Engine: barely any problems
-PC Engine CD-ROM/TurboGrafx CD: jammed gears/jammed laser/disintegrated gear
-TurboExpress/PC Engine GT: leaky capacitors
-TurboDuo/PC Engine Duo: leaky capacitors/sensitive to reversed polarity/stupid laser that runs off its track
Wow. That's one awful record for reliability.
Except that these problems didn't really show up until a couple generations after the PCE's
extremely long commercial lifespan. Combined with the cutting edge features of each-
TG-16/PCE: tiny HuCards, tiny PCE as first 16-bit console was smaller than current 8-bit consoles.
Turbo/PCE CD-ROM: first console CD-ROM, actually released as Sega was only releasing the original MegaDrive.
TE/PCE GT: first portable console and was still
super high quality. It took
forever for handhelds to match its screen quality.
Turbo/PCE Duo: As Sega was finally getting around to putting out a CD-ROM, the PCE received this sleek compact combo with built-in system card.
I'm surprised that they're as reliable as they are. They're especially great considering how many consoles had common problems while still current, such as the NES, PSX, PS2, 360, etc.
I mean when a PCE console develops a problem today, it's the equivalent of Marty McFly finding his old cutting edge CD player while in the future and it doesn't function
perfectly.