Olympia Disque with IKBS » History » Revision 2
Revision 1 (laforge, 09/28/2022 05:43 PM) → Revision 2/26 (laforge, 09/28/2022 05:49 PM)
h1. 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. h2. Hardware h3. 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 h3. Left daughterboard (67.650-3242-2) * 1x Mostek MK3870/42 MCU (socketed) * 1x TMS2516JL-45 16k EPROM 2048x8 (socketed) attachment:TMS3516-45JL.pdf * 2x 74LS259PC * 1x 74LS373PC * 1x ULN2003AN * 1x LM339N * 2x SN7404N * 1x T74LS00BI * 16x TIP112 * 2x TIP125 * 1x TIP127 h3. Right daughterboard (73.200-4045.1/02L / 73.410-4044.2/00) * 4x NEC D2732D 32k (4096 x 8) EPROM (socketed) attachment:D2732D.pdf * 1x SN74LS373N * 1x 8-way dip switch (all on in my unit) * 1x unknown DIL28 IC (label on top turns marking unreadable) h3. 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
