Iron - Manufacturer: KAY

(C) SHINE

      Get rid of junk!
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   Observational sinkleristy
have long pointed out that the price of computer repair 
virtually decreases regularly indexed, as opposed to price 
themselves computers. You can even explore the reasons for 
causing, sermyazhnaya but the truth is

that the cost of repairs has
tendency to increase with increasing
their number, and the demand for repair services significantly
less dependent on price than
you would expect from
side. Not far off,
when your computer will be easier to paint and throw it away 
and buy new than repair. In all civilized countries used in 
blocks diagnosis and primitive substitution nodes. The failed 
unit is replaced in Company - the manufacturer or disposed of 
in the garbage disposal. Only idiot in the West can come in

idea of resoldering chips. By the way, the firm - the 
manufacturer does not repair well received parts! If she does 
determine the cause of exit system, it is only then that

to adjust the technology or
design for reliability. D E W E B L E to produce a new site 
than to arrange repair. Perhaps the reason we bytuyuschey

Practice repair paradoxical Russian soul and specific creative 
urge, but economic laws operate with

inexorability hydraulic
press and so on have to unlearn this needlework.

   But to return from heaven to
land. Virtually all computers manufactured by self-made or 
pirates neremontnoprigodny. Also, can repair only

asserted failure to issue guarantees only that
troubleshooting. This
same type of fraud rather than
business; computer is transferred from
inoperable as a semi-workers, which may well
it before, and was. Lead the computer in working condition
only by tampering, and
it is very expensive. Now, examples
design features
very frequent, and
leading repairer of preinfarction state. Soldered
drives, and pasted the details
board, connecting strands of such length that get close to
board with an oscilloscope, to say nothing
with a soldering iron, it is impossible. Web of wires 
MGTF-0.035, which come off at the slightest touch. The same 
wire, lying on a high-voltage transistor network, and vice 
versa, network wire without solder

tubing and underlying fee.
Network source, set
under the drive. Metal
housing search grounding point
which turns into a research and development.
Undocumented invention of unknown function.
This list Zaletov far from complete. In practice, this
leads to the fact that virtually
Each refurbished computer cheap execution repaired again within 
the warranty period. And no brainer, that the free warranty 
repair double the starting price. 

   Now for the completion, extensions and improvements.
Computers, collected in 90 - 93
years, it is now unlikely to satisfy their respective owners. 
These things phenomenon is called obsolescence. The first 
impulse - is throw with a soldering iron at the ready

on your computer, but not in a hurry to do it. Perhaps
described hereafter you sober.

   If you can connect the drive and boy (unknown
just how reliable, durable and easy to use
get the car), then
printer connection is required something - what engineering 
knowledge (for example, is different than Signal and ground 
instrumentation, Why do I need a source of negative bias in the 
RS-232 and where can I get it, how to move from Standard IRPR 
to IRPR-M), and only turbirovanie beyond the power even

engineers. And it's not a qualification.

   Machines, which were issued before 1994
year are asynchronous circuit
formation of system clock. At 3.5 MHZ it passes (though not 
always) to 7 same MHZ those sheds with outbuildings

are leaving so that
happens, they do not "collect" and
using a half-dozen corrective capacitors. Each machine requires 
a unique turbiruemaya and literally jewelry

settings; of glyuchnosti and reliability better keep quiet. Of 
course, neither of which commercially viable universal 
technology turbirovanie we can not go.


   Now consider the option
when an attempt
enter into the machine all of these innovations and so - what
others, very tempting
things. The result obtained by APB - the shed is falling apart.
If this process is delayed
in time, the authors often
baffled them as their own
debugging, let into half
earlier. Repairmen are powerless, because a creative
tuned prolific sinklerist - apparatchik can download dozens of 
job experts. 

   "Shine" offers an alternative technology - replacement 
boards. Thank God, drive, enclosure and

Keyboard factory, ie,
standard and quality of execution.

   Conditions are as follows. Turbo charge KAY-256/3SL/TURBO
(About it you can read the article
in this issue) at the time of publication is 200.000 rubles, 
the work associated with removing the old contents of the case 
and installing the new electronics, coupled with three-month 
warranty - 150.000 rubles. Of this amount may be

deducted the cost of liquidity previous content - the healthy
BIS - is 45.000 rubles (AY8910,
27512, KR1818VG93, Z80). Installing a new power supply if
necessary - More
price of 35.000. Owner will be
only when necessary to resolder limit switches peripheral
devices - TV, TAPE, JOYSTICK.

   The proposed overhaul makes sense to do only
machines in standard housings
(From the system unit "Corvette")
with a serviceable disk drive and keyboard. If the cabinet is 
self-made, then additionally charged

50.000 rubles, keyboard block -
50.000. If the drive is faulty
- More 50.000 rubles. It is easy
note that at confluence of all
these adverse circumstances, perhaps it makes sense
thinking about buying a new
computer.

   Obtain more precise information and to order the proposed
service, please call:
(812) -159-55-69.

   P.S. Workshop "Shine" on
currently carries out repair:

   - Disk Drives - 45.000 rubles;

   - Computer "ZX-Spectrum"
disk configuration - 120.000
rubles;

   Also shop selectively
buying the parts old
computers of the above type.

   Earnest request: first,
will call and discuss all the conditions before you go to the 
computer! 



                        (C) NEMO

     Features computer

       KAY-256/3SL/TURBO


   First of all, it is a constructive solution board. The board 
has three system type connector "SLOT", one of which is engaged 
in full-time unit - floppy disk controller. Later

planned to combine the controller with floppy controller, hard 
disks under system IS-DOS. The two remaining

slots may be involved
under the existing controller and mouse
Controller IBM-XT keyboard.

   All connection fees to the outside world except for supplying
Power +5 v DC (+12 v is generated on the motherboard built-in
conversion) is carried out
through standard connectors,
established at the forefront
board. This allows to dispense with the case.

   Decoding Port Address
quite sufficient to ensure that they are conflict-free
work and the level of
software compatibility (about
97%). As shown, the vast majority of programs do not work 
created by computers, such as "Pentagon" and

incompatibility is related primarily
all with their original features. Apparently, these programs do 
not go, and on the company's apparatus. Port # FF absent

since its installation is unlikely
can be considered justifiable because of
small number of programs
critical to its existence. Access
programs to additional 128k
implemented a standard memory
for St. Petersburg's way, and if they do not turn into a shadow
ROM area, then work without
problems. The car is missing
shadow monitor and is not planned
its setting, but as an opportunity to software
Access free 16k ROM.

   The basis of computer circuitry laid synchronous digital
machine, which allows to localize "mainly those who" owing to
increasing capacitive loads
time slot signal parameters in the rigid framework of tolerance,
quite sufficient for
computer TURBO - mode.

   TURBO - mode provides
coefficient turbirovanie 65-75%
for RAM. Unlike other
ways of its implementation,
KAY-256/3SL/TURBO processor operates linearly in time and
address space of RAM. In other
words, the time of the fragment program does not depend on
its location in memory, and phase
GPU at the beginning
execution fragment. This time
can be calculated up to machine cycles, given the known changes 
in the duration of machine cycles. This opens new opportunities 
for programmers who develop

operating in real-time programs, such as
high-speed DACs, ADCs, speech synthesizers direct coding. 
Management TURBO - mode can be performed by hardware (the 
button with detent), so and software, or a signal to

bus.

   The printer interface type
CENTRONICS connected via
standard connector layout and style that matches the
printer interface for IBM. Output
characters through
Music coprocessor port
AY-3-8910, which allowed to do without the appointment of 
additional non-standard addresses port. The printer software is 
supported by built-in ROM directives LPRINT, LLIST and COPY

(For EPSON - standard). There
driver for magnetic media
for text and image editors.

   Now it's time to bring
full list of electrical and
physical characteristics of the board:

Layout: Wide, under body

            type system

            block.

Architecture: an open, tire

Software
compatibility: 97%

Operating
system:
 -Inline: BASIC 48/128,

              TR-DOS 5.04T.
 -Loaded: CP / M, IS-DOS.

RAM: 256 KByte.

Volume ROM: 48 KByte.

CPU Speed: 3.5/7.0.

Printer Interface: CENTRONICS.

Music
coprocessor: AY-3-8910.

Overall
dimensions: 186x155 mm.

Number of Circuits
floppy disk controller: 68 shells

Power consumption: 5v/1.3A.


   Unfortunately, the volume of articles is not
allows for more detail is stopped on all available
features, however, interested parties are invited to apply by 
phone: (812) -159-55-69, or by mail:

198261, St.Petersburg, POBox 213.


   P.S. The cost of board
floppy disk controller, floppy disk and
scheme - a passport nA October
1995. - 200.000 rubles.

   P.P.S. Also read interesting things about this computer
You can log in NN 11,12 radio amateurs - 94 "and N1 in 1995. In
N3 published floppy controller.

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