GOT
ZXNet echo conference «hardware.zx»
Hello, alexeenko
ale> what is that little scarf on top with the microcircuit Ya Ma ha?
Judging by the photo of the board, this is Pentagon 128.
All the documentation for it was floating around in the forum.
Yamaha YM2149F is a music coprocessor, almost a complete analogue of AY3-8910.
Hello, All
Backstory... I didn't sleep well, I had nightmares, I had no real
-spectrum. In my office at work, I turned on AY music. Some applicant came
and said, oh! This is Spectrum. I still have it lying around at home. I bought it on the run
10 bottles of beer and got this:
Please tell me what model this is and is there a diagram for it? And what the
a small scarf on top with a microchip Ya Ma ha?
They also gave me a bunch of floppy disks and a monitor, although not a color one. Later I'll ask how he is
connect.
I posted photos and a zip file with a photo of the motherboard.
PS; Spectrumist; - the owner of this computer died from a drug overdose,
The computer was given to him by his brother. Previously, this spektrumist traded in Moscow at the Tsaritsyno market
floppy disks. I'm not posting his details...
File: mk1.jpg http://zx.pk.ru/attachment.php?attachmentid=4449
File: mk2.jpg http://zx.pk.ru/attachment.php?attachmentid=4450
File: mik3.zip http://zx.pk.ru/attachment.php?attachmentid=4451
Hello caro
car> Judging by the photo of the board, this is Pentagon 128.
car> All the documentation for it was floating around in the forum.
car> Yamaha YM2149F - music coprocessor, almost complete analogue
car> AY3-8910.
The documentation is on my website.
Hello, alexeenko
ale> Spectrumist - the owner of this computer, died of an overdose
ale> drugs, his brother gave the computer. Previously, this spektrumist traded in
ale> Moscow on the Tsaritsyno market with floppy disks. I am not posting his details....
Hmm... Oscar fits this description...
Hello KingOfEvil
Kasik’s is exactly the same, even the body is the same!
Pentagon128 with a sound slap!
Hello, CHRV
In the mid-90s, the Solon company sold some modifications in such cases
Pentagonov-128 (possibly GRM).
Hello, alexeenko
My computer (see config) is in the same case. Not Pentagon.
Hello John North
A good monument to the deceased...
Hello, alexeenko
ale> the computer also works, but not very well,
ale> the picture shows what it shows
When I launched Leningrad-1, I saw exactly the same picture. Case
It turned out that the board was defective: D2 was shorted to ground.
Hello, alexeenko
ale> And in the second photo under numbers 1 and 2 I marked two wires that
ale> are not visible anywhere. I wrapped them with tape so that the thread would not be shorted. All
ale> the remaining wires are soldered and lead where needed. There were two on the drive
ale> wires. One is plugged into the power connector from above, and the second from below.
ale> that is, two contacts of the power drive connector are free (this
ale> correct?) And is there a difference which of these wires is in the connector
ale> below, and which one is above ???
the drive is 5.25, therefore it should be powered from +5 and from +12. in general, usually at
4 wires supply power (two are common).
As it turns out, these two wires should go to power the board drive.
you have to look where they are coming from.
File: fdd_pitanie.JPG http://zx.pk.ru/attachment.php?attachmentid=4459
Hello, alexeenko
ale> glad that the monitor works!
I had the same one. It was purchased back in 1993 for 10 thousand rubles! How much do I
I suffered with him! But all the same, it’s nice to see a piece of youth.
Hello, alexeenko
ale> Here are the instructions for this computer. There is even a book for the monitor! In people
ale> what kind of thrifty...
ale>
ale> Date of sale 1993! :v2_scare;
By; you can see the receipt, this is GrandRomMax-128 (GMX)
Hello, DVS
DVS> My computer (see config) is in the same case. Not Pentagon.
Why are you all “corps”, yes “corps”. You can put a lot of things in the case. Here
an example for you:
http://www.silicium.org/est/urss/leningrad.htm
This case should be very familiar to you, DVS. But not with Leningrad-2 inside
:)
Hello, alexeenko
ale> Here are the instructions for this computer. There is even a book for the monitor! In people
ale> what kind of thrifty...
ale>
ale> Date of sale 1993! :v2_scare;
There; At the bottom are the instructions and the name reads: "Rommax". In short, this is apparently one
from a variety of GRM-128, which stands for Grand Rommax."
Hello, alexeenko
ale> Previously, this spektrumist sold floppy disks in Moscow at the Tsaritsyno market.
maybe Eldar Agayev?
Hello, goodboy
goo> maybe Eldar Agayev?
NO, I took all his information and communicated with his brother. I just don't want to write here
data. He is not known among spektrumists and has not released anything, judging by his
discs, he simply traded on the market recording toys. Previously in Tsaritsino there was
there are many who simply sold discs without communicating with spektrumists. It's later
after 1993, there were practically only Spectrum fans left, who were a little
made money on specs.
Hello, Maksagor
> There are instructions at the bottom and the name reads: "Rommax". In short, this
> apparently one of the varieties of GRM-128, which stands for
> Grand Rommax".
Will the Pentagon diagram fit with it? Or is there a special scheme??
Hello, alexeenko
ale> It was later, after 1993, that there were practically only Spectrum fans left
ale> who earned a little money on specs.
They earned a LOT on specs)
Hello, alexeenko
ale> Here are the instructions for this computer. There is even a book on the monitor
paper under your tongue, smoke a book...