The 2000x manual and schematic show the F-1190 MPX stereo board to have filter modules (FP38A). I think I've seen one like that. The rest that have crossed my bench have discrete parts and I think the board is F-1190-2. The layout and schematic are slightly different. Does anybody have a schematic and board image for the latter version? Obviously I muddle along with mark-ups and notes, but it would be nice to see the Sansui docs on the matter. I've checked the other similar models, but they also show the module type board.