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Siel

Siel DK80

Siel DK-700

Siel Opera 6

Practically identical to DK-600 or Kiwi, although the numeric keys have a different layout.
Siel

Siel Orchestra

Solton

Solton Arranger Plus

Solton

Solton K160

Solton MS-5

Solton Programmer 24

Solton Programmer 24S

Solton Project 100

Solton TS4

Solton

Solton TS4K

Waldorf Blofeld Keyboard

Yamaha

Yamaha AN1x

Yamaha

Yamaha DX-7 II FD

Yamaha SK10

Yamaha

Yamaha TX-802

Common problems:
-power supply electrolitic capacitors

Yamaha CX5M music computer

Elka OMB3

Elka Drumstar 64

Elka Drumstar 80

Kvintet - квинтет - Quintet

Dynacord P20

Access Matrix Programmer

Controller for Oberheim Matrix 1000 and Matrix 6/6R.
Technics

Technics SX-K200

Released in late 1982, this was one of the last conventional (analogue and BBDs) string machines ever made but also the first keyboard to include PCM samples as part of its sound generation.