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Olympia Disque with IKBS » History » Version 17

laforge, 09/29/2022 08:11 AM

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h1. Olympia Disque with IKBS
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The *Olympia Disque* is an electronic daisywheel typwriter with single-line alphanumeric display, battery-buffered RAM and a proprietary 2" floppy disk drive.
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It was possible to enable the Olympia Disque for Teletex, either with an internal add-on-board (IKBS) or with an external device.
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h2. Hardware
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h3. Mainboard
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The mainboard hosts
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* 1x NEC D8085AHC CPU (socketed)
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* 4x TI TMS2764JL-35 EPROMs (IS1..IS4)
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* 1x Fujitsu MBM27128-30 EEPROM (IS54 via daughterboard 73.410-4066.1)
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* 5x HM6116LP-3 RAM (onboard)
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* 4x HM6116P-3 RAM (socketed)
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* 1x NEC D8253C-2 programmable timer IC (socketed)
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* 2x NEC D8255AC-5 programmable peripheral IC
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** towards connector leading to daughterboard 73.200-4045.1/02L / 73.410-4044.2/00
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** towards connector X5
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* various logic ICs (SN74LS245N, SN74LS02N, SN74LS393N, SN74LS04N, SN74LS138, TC40H032P, TC40HC002P
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* Panasonic Lithium Battery BR-2/3A 3V
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h4. Connectors (labels added by myself)
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|_.Designation|_.Pinout|_.Connects to|
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|X1|1x4|Power supply|
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|X2|1x3|Power supply|
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|X3|1x13|Floppy Controller|
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|X4|1x2|Pushbutton on rear panel near DB-15 X.21 connector|
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|X5|1x16|Display (X22)|
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|X18|2x10|Kayboard (X20) + LED/Pusbutton board (X19)|
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h3. Left daughterboard (67.650-3242-2)
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This board seems to be in charge of driving the electromechanics (daisywheel, paper feed, carriage, ...)
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* 1x Mostek MK3870/42 MCU (socketed)
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* 1x TMS2516JL-45 16k EPROM 2048x8 (socketed) attachment:TMS3516-45JL.pdf
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* 2x 74LS259PC
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* 1x 74LS373PC
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* 1x ULN2003AN
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* 1x LM339N
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* 2x SN7404N
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* 1x T74LS00BI
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* 16x TIP112
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* 2x TIP125
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* 1x TIP127
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h4. Connectors (labels added by myself)
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|_.Designation|_.Pinout|_.Connects to|
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|X6|1x3||
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|X7|1x9|Carriage belt drive step motor|
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|X8|1x16|Paper feed step motor|
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|X12|2z19|daisy-wheel/carriage|
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h3. Right daughterboard (73.200-4045.1/02L / 73.410-4044.2/00)
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* 4x NEC D2732D 32k (4096 x 8) EPROM (socketed) attachment:D2732D.pdf
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* 1x SN74LS373N
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* 1x 8-way dip switch (all on in my unit)
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* 1x unknown DIL28 IC (label on top turns marking unreadable)
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h3. Display board (73.310-4029.1/05 / 73.410-4028.2/02)
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* 1x single-row 40 character alphanumeric VFD display tube
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* 1x Toshiba TMP8085AP CPU (socketed)
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* 1x NEC D2732D 32k (4096 x 8) EPROM (socketed) attachment:D2732D.pdf
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* 1x RCA CDM6116AE2 RAM
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* 1x unknown DIL40 IC (label on top turns marking unreadable)
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* 10x UCN4810A VFD display driver
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* 1x SN74LS373
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* 1x TC40H000P
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* 1x 74LS00
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h3. Keyboard (73.410-3001-2/00)
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* 1x DM74LS154N
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* 76x diode (for key matrix)
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* 77x key switch (click)
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* 1x 2x10 2.54mm header (bus cable connecting keyboard)
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h3. Button and LED panel (73.410-4012.2/02)
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* 1x MM5451N
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* 8x Diode
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* 28x LED 3mm green
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* 7x pushbutton
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* 1x 2x10 2.54mm header (bus cable connecting keyboard)
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h3. IKBS board (63.400-6101.1 / ANT 66.3820.600.00-A001 SA-Ausg.B)
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* 1x SAB 8085 A-C CPU (socketed)
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* 6x MBM2764-30 64k (8192 x 8) EPROM (IC1..IC6)
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* 10x Toshiba TC5516AP RAM (socketed, 2x DIP24, 8x DIP28)
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* 2x Intel D8251A UART
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* 1x Intel D8255A-5
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* 1x Intel D8273 HDLC/SDLC controler)
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* various logic ICs (74HC00, 74LS03, 74LS00, 7400, 74LS04, 74LS02, 74LS74AN, 74LS32N, 74LS138N, 74LS374N, ...)
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* 2x UA637ARC
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* 1x 9638RC
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* 1x Varta FL3/60DK 063 battery
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h4. Connectors
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|_.Designation|_.Pinout|_.Connects to|
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|SV1|1x4|Power supply|
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|SV2|1x14|SUB-D 15 (X.21 Interface)|
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|SV3|1x3|Wires soldered to right daughterboard: GND, IS10, IS9). Maybe Chipselect?|
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|SV4|1x4|3x Teletex LED panel (X23)|
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