Baltic

Yesterday my spec died :-(. While working, the screen suddenly went dark and then different stripes started jumping across it. The processor is working, the ROM seems to be too.
I installed the test ROM, the test is running (strips are visible on the border), but on the screen
the picture does not change. I'm waiting for advice on how to bring my computer back to life. I would be glad
to any help.

I wish you good luck.

My on-board systems found that on Monday November 15, 1999 10:22,
Igor Zhadinets wrote All:

IZ> Yesterday my spec died :-(. During work, the screen suddenly went dark and
IZ> then they started using it jump different stripes. The processor is working, the ROM
IZ> seems to be the same.
IZ> I installed the test ROM, the test is running (strips are visible on the border), but the picture on the
IZ> screen does not change. I'm waiting for advice on how to return my computer to
IZ> life. I would be glad for any help. Thanks in advance to everyone.
It is entirely possible that your RAM or the IR23 register, which
pumps data to the screen, or the IR16 counters from the video controller have died.

By the way, are you working on Specky, grounding your computer or TV?

Sincerely, Musa Khaybullin.

IZ>> and then different stripes started jumping across it. The processor
IZ>> works, the ROM seems to do the same. I installed the test ROM, the test runs (streaks are visible on the border), but the picture on the screen does not change. Waiting
IZ>> for advice on how to bring my computer back to life.

MK> It’s entirely possible that your RAM or the IR23 register, which
MK> pumps data to the screen, or the IR16 counters from the video controller are dead.

Thanks for the advice, the problem really was in the RAM, or rather in the loss
of the CAS signal on one of rulers. Already fixed it.

MK> By the way, do you work for Specky, grounding your computer or TV?

In general, the switching power supply (and therefore the computer) is grounded, but what?

I wish you good luck. Igor.

MK>> which pumps data to the screen, or IR16 counters from the
MK>> video controller.

IZ> Thanks for the advice, the problem really was in the RAM, or rather in the
IZ> loss of the CAS signal on one of the lines. Already fixed it.
Well, great!!! Another addition to our ranks ;)

26 Nov 99 14:44, Musa Khaybullin wrote to Igor Zhadinets:

MK> When the computer is not grounded, sometimes static from the kinescope can
MK> burn the memory and VG93 ;(

How is this possible??? Don’t write nonsense.

I also know a case where it burned out printer... it doesn't mean anything.

Kirill Frolov [ZX]

KF> How is this??? Don't write nonsense.

It's very simple - click and that's it... From the kinescope, static voltage (directly from the bulb) can flow to the magnetization loop, and through it into the monitor circuit and into the computer. And there, anything can happen - the computer can work normally, or it can constantly glitch, and the microcircuits also burn out. Here:(.
Of course, all this is due to malfunctions in the equipment or a factory
flaw (for some reason, most Elektronik-VTC32 suffer from static
incidents :).

Sincerely, Dmitry.

No one writes nonsense here! I myself have encountered this more than once,
it was cured only by grounding.

With respect, Musa Khaybullin.

There is no need to be so categorical, Kirill. if this has not happened to you,
this does not mean that this cannot happen in principle. look at me. Do I look like the person who suffered from the above problem? and yet
it is so. You can try it yourself - with one hand grab the computer case (if it is
metal and not grounded), and with the other hand touch the monitor screen.
the result of such actions is a dead VG, and in the case of a more fatal outcome -
dead memory.

KF> I also know a case where the printer burned out... this is nothing
KF> That's it.

With best wishes, [ZX] ar...@mail.ru
Artur. wall...@mail.ru