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Microcomputer BK 0010-01

Good day,% habrauser%.
In my second habratopic, I would like to tell you about the Soviet microcomputer BK 0010-01 and my unsuccessful attempt to start it.
Details under the cut (carefully, many images - 4.4 Mb)

Some information about the gland. According to the official documentation for the BC (Household Computer) 0010-01, it has the following characteristics:
Speed ​​- Not less than 0.3 million short operations per second
Random Access Memory (RAM) Capacity - 32 KB
Capacity of the internal TID ROM - 32 KB
The speed of information exchange with a cassette recorder - 1200 Baud
The capacity of the external permanent storage device (ROM) in the sideways MSTD - 16 kB
The number of keyboard keys - 74 pcs.
Storage capacity on a compact cassette of type MK-60 - no more than 0.5 MB

In September 1989, it cost 750 rubles, but I got it for 90 :) Of course, not in such a beautiful condition as it looks in the title, but in such


On the back cover you can see a metal plate with brief information about the device:

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On the back there are 6 slots.

From left to right in order:
BP - socket for connecting the power supply
UE - plug for connecting external devices, program-controlled PC
DTV - outlet for connecting the RGB-video input TV color image
TV - socket for connecting a black and white image to the video input of the TV
MPI - plug connection block MSTD
MG - tape connection socket

Unscrewing a couple of bolts, our eyes open a hefty board with two cables to the keyboard


Speaking of insides. In the computer, you can detect a lot of precious metals. Extract from the documentation:
Gold - 0.7141 grams
Silver - 3,2997 grams
Platinum - 0,0060 grams
Palladium - 0.0350 grams
Ruthenium - 0.0105 grams

After looking through the documentation and carefully examining the “guts” of the BC, there was a natural desire to start the whole thing like that. In order to display the image, you can use two options: DTV and TV sockets. TV was chosen, since the pinout of this cable looked the most simple and understandable for its implementation.

The power cable also did not look very difficult, judging by the power supply unit on the BC, you need to supply 5 volts and 1.5 amperes.

Since there was no suitable rectifier at hand, I decided to take the adapter from the laptop. At the exit he had 12V and 3A. From improvised means was made an excellent way out of the situation:

One thing, of course, was not clear: Where is the earth? The issue was quickly resolved by inspecting the port for power from the inside:
Obeying the intuition that the most “fatty” path is traditionally the earth, we boldly solder the land to the second port. I want to note that everything was done in order to just run, therefore it was done not too carefully ...

Speaking of accuracy, the L7805 was very hot from such a current, and since there was no suitable radiator (10x10 cm) on hand, I had to install active cooling :)

After all the checks, the launch still took place

But to my great disappointment, there was not a single image at any frequency. Perhaps the BC itself is not in order, but I really want to believe that this is not so and the whole thing is in my crooked hands.
After the advice of good comrades in the comments, I connected the BC to the VIDEO connector. It worked, though it works for 1-2 seconds, and then it is cut down ... I am afraid that L7805 is to blame

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From the power supply unit BK earned fame. Even a little play with her :) Here is a photo



Link:
Link to the documentation for BC 0010 (0010-01)
Wikipedia BC , you can find a lot of useful information and links to interesting resources dedicated to BC
Memories of BK 0010 - Very useful resource, a large number of articles about BK, scans from magazines and much more

Source: https://habr.com/ru/post/116749/


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