Teardown of an old Soviet made PC.

[abyrvalg]

This is the power supply pinout picture http://zxbyte.ru/pic/byte5_10.jpg "B" letters means "V".
!!! WARNING !!! This is PSU's side plug, not the socket on board, mirror it !!!
You can use just a piece of coax with stripped ends to connect it to the TV, good contact is not required, most of those HF modulators were so powerful that sometimes I was able to tune my TV to neighbour's ZX behind the wall This particular modulator uses SECAM colour coding, some "western" TVs may show it B&W.

Having discretes vs ULA was cool - like having an "open source" ULA I still have a schematic sheet of my first ZX somewhere at parents house.

[ResR]

I remember soviet Estonia made "Juku" was similar in internal construction, it was pain in the arse to get it working. Also those resistors are metal film type MLT 0,125W, not wire wound. I have seen a lot of things that was made in 1989 to 1991 in soviet union utilizing western parts. But it has been a long time since I have seen a specimen, so teardown needs to wait for the opportunity. Two thumbs up to OP for good teardown.

(Forum changed the cyrillic letters into ? marks )

[abyrvalg]

Btw, MME Z80A wasn't a layer by layer copy, but a compatible design (like Cyrix i486). It was even possible to detect it with a software trick based on slightly different implementation of LDIR instruction (Zilog repeats the opcode fetch cycle on every iteration, MME does fetch only once).

[calin]

Yes you can poke fun @ them but these machines have created many good engineers at got lots of kids (including me) into the world of electronics and IT.

So clone .. no clone .. soviet bla bla .. It was actually a good thing

Mostly we are having fun looking at that old stuff. And yes, we are also poking a tiny bit of fun at it.

Don't you find it ironic and funny that the self-proclaimed superior socialistic/communistic system needed to clone, copy and steal the technology of the despised western imperialistic pigs and class enemies? Instead of coming up with something on their own? Something which by their own ideological argumentation could only be vastly superior to anything from the West. I could now link that pst propaganda and behavior to current Russian political events, where they do all kinds of funny things to proof their superiority and cover up their questionable behavior. But we aren't supposed to discuss politics here, so I leave it at that.

I don't mind anyone poking fun ... like I said I truly did not care or even know at that time were it was made or who claimed what. Was it superior or inferior .. ?!! who knew. All I knew it was I could get my hands on something cool .. western .. eastern made .. whatever; i had a "computer" and all is that what matter at that time . What I wanted to point out is the fact that regardless from where these things came they inspired an entire generation of kids.

As for the Russian spirit .. I suppose you did not ever lived close to "mother Russia" to know what that means. I-ll just live that there .. any guys from eastern Europe know exactly what I mean. If you did then you know (sorry if I missplaced you ) and what is Russia doing now wold start making some sense. Also what US and EU is doing about it.. makes sense also  it is called "deja vu"

[FrankenPC]

Comrades!  I present to you the Kommodore ?

[iDevice]

Here's the connector.

I expect two of the center pins to be GND.

What's funny, is that it looks like an oversized Sinclair QL power supply connector...
Maybe another "inspiration".