Yamaha pss-480 service manual

Yamaha PSR/PSS/DGX - Yamaha Forums

Very interesting rompler chip, that uses oddball custom serial roms (YM2190), 2x 6voices. Interface may be similar to the YM2190: bitclock, sync, addr to rom (a0..a N), data from rom (d0..d7).

Yamaha Chips - Edward d-tech

Common DSP/FM source produces rather similar sound on any sythesizer having thesame chip, or at least have same particular aspects or oddities of the sound.

<em>Yamaha</em> Chips - Edward d-tech

Yamaha PortaSound PSS-470 Vintage Synth

This reference table also allows to quite precisely assess the character and quality of the sound for a particular keyboard, by knowing the sound of other similar ones.

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Each half can use only it's own dedicated ROMs, so the polyphony usualy is 6voices for percussion and 6voices for base. Small serial ROM in DIP-8, used in music data cartridges for TYU-30. If I will someday get my hands on a TYU-30 with cartridge(s), I will read them out and post data and format there.

Yamaha pss-480 service manual:

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