Here is the Alta Vista translation for part of Jørgen's link. It seems a different standard is being used to count ROM, since my numbers were 48MB and 32MB. Note that two rows of buttons on the upper right hand side of the keyboard have been added to accommodate the plug-ins. So far it seems the earlier picture was pretty accurate except for the arrangement of the keys.

76 keys with more easily weighting

45 MB memory (instead of 30 MB with the PSR 9000) are available for the internal sounds (super piano sound!)

Yamaha Plug in boards (as with the MU128 sound module) can be integrated, operation been made by two new key rows on the right page of the device

Microphone link in XLR building method

Links for two goose neck lamps on the right of and left of the display

flatter building method because this professional model inserted boxes does not possess!

new colour of the housing in noble metal look

Pitchbend and modulation wheel are arranged diagonally transferred at the left side, for better handling.

u.v.m