Olympia Disque with IKBS¶

The Olympia Disque is an electronic daisywheel typwriter with single-line alphanumeric display, battery-buffered RAM and a proprietary 2" floppy disk drive.

It was possible to enable the Olympia Disque for Teletex, either with an internal add-on-board (IKBS) or with an external device.

Hardware¶

Mainboard¶

The mainboard hosts

• 1x NEC D8085AHC CPU (socketed)
• 4x TI TMS2764JL-35 EPROMs (IS1..IS4)
• 1x Fujitsu MBM27128-30 EEPROM (IS54 via daughterboard 73.410-4066.1)
• 5x HM6116LP-3 RAM (onboard)
• 4x HM6116P-3 RAM (socketed)
• 1x NEC D8253C-2 programmable timer IC (socketed)
• 2x NEC D8255AC-5 programmable peripheral IC
  • towards connector leading to daughterboard 73.200-4045.1/02L / 73.410-4044.2/00
  • towards connector X5
• various logic ICs (SN74LS245N, SN74LS02N, SN74LS393N, SN74LS04N, SN74LS138, TC40H032P, TC40HC002P
• Panasonic Lithium Battery BR-2/3A 3V

Left daughterboard (67.650-3242-2)¶

• 1x Mostek MK3870/42 MCU (socketed)
• 1x TMS2516JL-45 16k EPROM 2048x8 (socketed) TMS3516-45JL.pdf
• 2x 74LS259PC
• 1x 74LS373PC
• 1x ULN2003AN
• 1x LM339N
• 2x SN7404N
• 1x T74LS00BI
• 16x TIP112
• 2x TIP125
• 1x TIP127

Right daughterboard (73.200-4045.1/02L / 73.410-4044.2/00)¶

• 4x NEC D2732D 32k (4096 x 8) EPROM (socketed) D2732D.pdf
• 1x SN74LS373N
• 1x 8-way dip switch (all on in my unit)
• 1x unknown DIL28 IC (label on top turns marking unreadable)

IKBS board (63.400-6101.1 / ANT 66.3820.600.00-A001 SA-Ausg.B)¶

• 1x SAB 8085 A-C CPU (socketed)
• 6x MBM2764-30 64k (8192 x 8) EPROM (IC1..IC6)
• 10x Toshiba TC5516AP RAM (socketed, 2x DIP24, 8x DIP28)
• 2x Intel D8251A UART
• 1x Intel D8255A-5
• 1x Intel D8273 HDLC/SDLC controler)
• various logic ICs (74HC00, 74LS03, 74LS00, 7400, 74LS04, 74LS02, 74LS74AN, 74LS32N, 74LS138N, 74LS374N, ...)
• 2x UA637ARC
• 1x 9638RC
• 1x Varta FL3/60DK 063 battery