General View

Front Sticker

Rear connectors: Power (with CRT plug), serial,
printer, VGA, keyboard.

Bottom sticker

Set-up window

Boot screen

Inside

Power supply

Mainboard

Notice SRAM chip and sandwich of multiplexers

Old Czechoslovakian circuit in power regulator.

CPU and ROM, notice 24C02 settings EEPROM
near EPROM chip

Probably character generator chip and logic

CPU is 80C31 microcontroller