IMPROVEMENTS...
Here I present to your attention clippings from Online, which
which can certainly help owners of old Scorps.
And in general, I propose to publish in this section everything related to
Involved with modifications and upgrades of your computers.
Perceive all “I” on behalf of the editor of the SCORPCLUB section!
"AY modification scheme for SCORPION ZS"
The circuit is connected to the board either through a system connector or
through the slot or directly to the processor 5 (7) signals, and 2 on
AY-3-8910/8912;YM2149F, etc. The scheme is as follows:
__
WR
______ │
IORQGE ───────────────────┐ │
│ 1┌───┐ │ 2┌───┐
5┌───┐ └───┤ │3 └───┤ │1
A15 ──┬───┤ │4 13┌───┐ 2│ ├─┐ 3│ О───── BDIR
│ 6│ O───────┤ │11┌┤LL1│ └─┬───┤LE1│
└───┤LE1│ 12│ ├──┘└───┘ │ └───┘
└───┘ ┌──┤LL1│ 9┌───┐ │12┌───┐
A1 ────────────────┘ └───┘ ┌──┤ │10└──┤ │13
│ 8│ О─┐ 11│ О────── BC1
A14 ────────────────────────┴──┤LE1│ └───┤LE1│
└───┘ └───┘
WARNING! DON'T FORGET TO SUPPLY: 5V FROM EACH CHIPAnd
GND!!! THE 5 VOLTS CONTACT IS LOCATED ON LEGS 14, AND THE GROUND IS ON 7, WITHOUT
IT DIFFERENCES WHAT CHIP IS WHAT IT IS.
COUNTING THE LEGS OF MICROCIRCUITS IS PRODUCED AS follows:
┌──────┐
1──┤▀ ├──14
2──┤ ├──13
3──┤ ├──12
4──┤ ├──11
5──┤ ├──10
6──┤ ├──9
7──┤ ├──8
└──────┘
Contacts BC1 and BDIR are the pins of the AY-3-8910/12 microcircuit.
BDIR is 27 leg 10 AU-shki or 18 leg 12 AY-shki, and BC1 is
29 contact 10 AY-shki or 20 from 12 AY-shki.
If the circuit conflicts with the computer, then rearrange
contact IORQGE on IORQ. This circuit has been delivered and tested for
several computers and works with all digital cameras, except
those who are still switching pages using #FD.
With the above diagram, the modem does not fail, i.e. everything works fine
little!
----------------------------------------------------------------
Recently, a sufficient number of programs have been developed,
whose authors address the port at half the address, using
switching pages with the OUT (#FD) command. Such refusal programs
are called to work for Scorpios, because... Scorpio needs
full port address.
This modification allows you to run such programs. She
blocks port #1FFD, thus "passes" OUT (#FD),A and
it is possible to use, for example, STS without modifying programs,
watch "SATISFACTION" or "INSULT". It should be rememberedonly
one thing - they will not work with the program button, for example "TASM",
who access the ROM via RST 8, because RST 8 is under control
the role of a shadow worker who needs page 8 to work, and,
Naturally, port #1FFD.
So, now in more detail: you can press the button at any time,
While in the boot or the program itself, you should not press the button
ku only while in the main menu of the computer, because there too "ho-
the shadow guy is yawning. So, using an example: You need to launch STS -
go to TR-DOS, press the button, launch the RUN "STS" program.
You are surprised to see that the program works!!! Or, more pro-
else - pressed "ENTER" in the main menu, fell into TR-DOS with a
narrow boot, pressed the button, launched the program.
The only boot I know that is not button friendly
- old Trubinov boot (probably uses RST).
Second: the fact that the button is pressed does not prevent you from using
shadow!!! When you press "magic" port #1FFD is unlocked and you
You’ll find yourself in your favorite shady spot without any problems. Second manager
The signal to unblock the port is, of course, “reset”.
Those. by “collection” or “magic” the computer gets its port back
and extra pages.
Thus, another plus is revealed - the button allows
"cheat" defenses against "Scorpio" based on scoring the 8th
pages at random of all sorts of rubbish. And although when coming up with improvements
this onethe effect was not taken into account, it is another argument
for revision.
Now - the diagram:
==================================================================================
Remove 1 leg of D49 from the track (without disturbing the road itself!).
Cut the conductor between 13 (D53) and 15 (D52).
┌───────────────────────┐ 1 (D49) track
│ <──o──┐ TM2 o───────────────
│ +5V│ │ 10┌─┬─┬─┐ │ 1 (D49) leg
│ ┌┴┐ o───oS│ │ │9 │ ──────────┐
│ │ │ │ 12├─┤ │Q├── │ LI1 │
│ │ │ └───┤D│ │ │ │ 1┌──┐ │
│ └┬┘ 11│ │ │ │ └──┤& │3 │
│ 1kOm└──o───/C│ │ │8 2│ ├──────┘
│ │ 13├─┤ │Qo────o──┤ │
│ │ ┌─oR│ │ │ │ └──┘ LL1
│ / │ │ └─┴─┴─┘ │ 2┌──┐
│ ┌─o o─┘ │ └───────┤1 │3
│ │mikrik │ 15 (D53) 1│ ├─┐
│ │ │ ──────────┤ │ │
│ ─┴─ │ └──┘ │
│ LI1 │ ┌───────┘
│ 10┌──┐ │ │ LI1
└─────┤& │8│ │ 4┌──┐
NMI 9│ ├─┘ └──┤& │6
──────┤ │ 13 (D53) 5│ ├─┐
└──┘ ──────────┤ │ │
15 (D52) └──┘ │
───────────────┘
Notes:
1. It is convenient to use half of the TM2 remaining from the "turbo-
aniya VG" (if you have it done). Leg numbers in this diagram
given taking this fact into account.2. LL1 and LI1 are installed on a free field on the board. Their
unused (yet) elements will still be useful to us in the next
improvements.
3. For greater convenience, it is recommended to display:
300 Ohm
┌────┐ +5V
┌──┤ ├─────>
__│__└────┘
/
_ /_ LED
|
10 kOhm/
9 (TM2)┌────┐ │/
──────┤ ├────┤ KTZ15
└────┘ │
emitter
│
│
─┴─
By soldering this thing, you will never get confused - with the
When locked, the LED lights up, but when it's off, it doesn't.
In conclusion, I would like to dispel the doubts of the indecisive - I have
this modification was installed more than two years ago, for all this
time, not a single minus has been identified - after all, until you
press the button, the modification has NO effect on the computer circuit
ra, without changing it AT ALL.
From the material of the ONLINE newspaper (issues 11 and 23).
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