PC-01 Lviv http://pc01.lviv.ua/forum/ |
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ПК-02 Мукачево http://pc01.lviv.ua/forum/viewtopic.php?f=21&t=361 |
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Author: | Zelya [ 07 Nov 2019, 13:08 ] |
Post subject: | ПК-02 Мукачево |
Нашлись упоминания о реально существовавшем экземпляре. Пока, как-то так: Quote: [...] спрошу у отца. Теоретически, мог остаться и сам ПК. По факту - во время ремонта все могли выбросить.
Ждем и надеемся!
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Author: | Zelya [ 08 May 2020, 13:19 ] |
Post subject: | Re: ПК-02 Мукачево |
Quote: Увы, я мало что помню, кроме очень плохо работающей клавиатуры. Спрошу еще у отца.
Документации не сохранилось, я смотрел, равно как и самого ПК. Quote: Не впечатлил он меня после УМПКР, хотя "выступающие" клавиши - это было очень круто. Но нажимались они очень посредственно и подклинивали.
Quote: там еще бейсик был вроде "вшит", т.е. не надо было его каждый раз загружать. Вот это было весомое преимущество аппарата. ))
Quote: но его корпус был намного компактнее, чем у ПК-01! Правильной прямоугольной формы, как классическая клавиатура. И черного цвета со светлыми клавишами.
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Author: | Zelya [ 20 Jul 2023, 17:19 ] |
Post subject: | Re: ПК-02 Мукачево |
OMG!!! https://www.youtube.com/watch?v=gNTYLk-yja8 https://www.youtube.com/watch?v=vhNpYsXgur4 |
Author: | MARAT_BEST [ 23 Jul 2023, 06:17 ] |
Post subject: | Re: ПК-02 Мукачево |
Quote:
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Author: | cluelessengineer [ 07 Aug 2023, 11:42 ] |
Post subject: | Re: ПК-02 Мукачево |
Quote:
Hey! That's me Got her out again tonight and will try some more troubleshooting ... if you have any ideas (схема??) then I would greatly appreciate it. Thanks Brett. |
Author: | cluelessengineer [ 07 Aug 2023, 11:50 ] |
Post subject: | Re: ПК-02 Мукачево |
Quote:
OMG!!!
BTW, was it a good "OMG" or a bad "OMG" ... ?Good OMG == OMG, someone in Australia is interested in the PC-02 ... or Bad OMG == OMG, this Australian is butchering the poor PC-02 Brett. |
Author: | cluelessengineer [ 08 Aug 2023, 01:31 ] |
Post subject: | Re: ПК-02 Мукачево |
I wonder if the one I have has had some parts stripped. There's a distinct lack of decoupling caps (although I know they were judicious in their use in Soviet era), and I see a lot of "bare legs" where a component was but has been snipped off. Attachment:
And near the video output there appears to be missing transistors ... sets of three bare legs.
Attachment:
/Brett
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Author: | Zelya [ 08 Aug 2023, 14:10 ] |
Post subject: | Re: ПК-02 Мукачево |
Quote:
BTW, was it a good "OMG" or a bad "OMG" ... ?
It's double good OMG.Good OMG == OMG, someone in Australia is interested in the PC-02 ... or Bad OMG == OMG, this Australian is butchering the poor PC-02 1: someone in Australia is interested in the PC-02 2: PC-02 was some kind of "mystery" PC. There was some information about it, but no real hardware. So, I'm so sorry, but I couldn't help you with documentation and/or schemes. The only one important note to avoid mess. There are two different meaning for "PC-02" 1. Original PC-02 Mukachevo was developed at the end of USSR period. And only small testing batch was released at factory in Mukachevo. 2. PC-02 Lviv is the amateur upgrade for PC-01 Lviv. Processor replacement to Z80, extended memory (128/256/512), AY sound chip. |
Author: | cluelessengineer [ 09 Aug 2023, 15:06 ] |
Post subject: | Re: ПК-02 Мукачево |
Quote:
It's double good OMG.
Ahhhh! All good. I've had discussions on Telegram group too ... UCHC "Ukrainian Computing History Community" ... they had boot screen on a working one and it showed ... PC-02 "KIEV" ... and running BASIC 2.1.
1: someone in Australia is interested in the PC-02 2: PC-02 was some kind of "mystery" PC. There was some information about it, but no real hardware. So, I'm so sorry, but I couldn't help you with documentation and/or schemes. Attachment:
Attachment:
They also had pictures of my missing components. It looks like mostly it is the decoupling caps (assuming 100nF) that are missing - so I have started replacing those. There are also some missing components near the video output ... but luckily they should only be for the cassette interface, so I can ignore for now (УД6Б and АОТ110). Once I've put the decoupling caps back, I will try to boot again and see if I have more success! I'll let you know! /Brett |
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