Икар (Icarus): Part 1

The Icarus is a “household computer“ (бытовой компьютер) built in post-Soviet (1992-1993) Ukraine ... as far as I can tell. I have serial number 202 from 1992. Researching the ТУ number (ТУ-92-05502-014-90) and the symbol seems to indicate it belonging to Харьковский Завод “Электроприбор“ ... Kharkov Plant “Appliance“ ... ? It is a ZX Spectrum clone with 64KB of RAM (eight 64Kbit КР565РУ5Г)- it uses a genuine Zilog Z80 CPU and all the remaining parts appear to be Soviet-era including the 8255 clone (КР580ВВ55А). The keyboard is a touch-sensitive membrane type and includes all (?) of the usual Spectrum keywords (not usually included on these types of machines). It has some interesting ports: a 5-pin DIN male (instead of female) socket for 5VDC power input and a DB32 (?) type expansion port. The expansion port has three rows of 11/10/11 pins ... I’ve not been able to find this plug so far ... The video output appears to be the following: Pin 1 = red Pin 2 = green Pin 3 = blue Pin 4 = synch Pin 5 = ground It also has two DE9 joystick ports, a tape recorder and audio out (I think?) ports. They also managed to squeeze in a SECAM TV modulator port. I managed to power the machine by creating a USB power cable, however there appears to be a RAM issue so some troubleshooting will be required.