Originally posted by: Karyudo
(For those following along, "LSI" is "large scale integration," which means putting a lot of discrete electronic components functions together in one package. This is typically what happens in mature electronics, and is one large reason why the prices of electronic equipment (say, DVD players) start to plummet once that equipment hits the mainstream. It's also a reason why sometimes late-model equipment isn't quite as robust or tweakable as earlier-generation stuff -- you just can't get in there and swap out individual components to try and improve or change things.)
Originally posted by: Warp99
if the 2950 or the 925 circuitry by LSI design does not provide for a 'real' composite output.
if the 2950 or the 925 circuitry by LSI design does not provide for a 'real' composite output.
(For those following along, "LSI" is "large scale integration," which means putting a lot of discrete electronic components functions together in one package. This is typically what happens in mature electronics, and is one large reason why the prices of electronic equipment (say, DVD players) start to plummet once that equipment hits the mainstream. It's also a reason why sometimes late-model equipment isn't quite as robust or tweakable as earlier-generation stuff -- you just can't get in there and swap out individual components to try and improve or change things.)
Thanks Karyudo for filling in, yes you're right a LSI design would be difficult or impossible to alter. Only if Pioneer for some reason included a composite DAC (digital to analog converter) in the TBC (time base corrector) LSI circuit, i.e. if the same TBC circuit also was used for the players that only has composite output, it could be possible to connect a simple filter and video amplifier and get access to the composite signal before it enters the combfilter board.
Also other tweaks would be limited to the few discrete components surrounding the LSI circuits, some improvement could be made but requires some trial and error and it's timeconsuming and sometime you realize that the design was pretty optimal to begin with. The power supplies can usually be improved though, either with higher quality components or by altering the design but mistakes here can be very costly and you might end up turning the unit into a 10 kg paperweight.