Corrosion
(C) Volyk Alex ChbZXNet 835/01.06
Hi all users, coders, lamer!
That's decided cherkanut couple, or more,
lines in the first network a newspaper.
I am writing here for what reason - for the umpteenth time
I'm asked the question: "What is there stick into the rat? "I
answered:" Vpihnite scheme, which is drawn below! "I hope that
those who need it would get this newspaper and redraw it
(Scheme) to all those who are not very must! ;-()
And here is the scheme:
+5 V
^ K1533TL2
| ______
| | |
| And this is one | |
| / Of the transistor _____| |_____
_|/<- Tori opto-/ | | exit
| New pair! | / | |
| V | / |______|
+-----------| KT315
| |
| |
--- V
| | |
| | 5,1 K |
| | |
| | |
--- |
| |
+--------------+
|
- + -
Optocoupler in the structure has two phototransistor. The
average output - a common, it must be connected to +5. Two
extreme connected to a common connection point
resistor and the transistor base. Naturally, not both. For each
phototransistor needs its own such a scheme - in eventually you
will have four resistors, four transistors and one IC. C
outputs signals chip take directions.
LEDs (which are worth the contrary
optocouplers) should be included in series with a resistor of
150-300 ohms and all this is connected to GND
Power and +5 volts.
When you install your direction (s) movement direction (or
something more) opposite movement of the mouse, then
swap yields Xa and Xb, or Ya
and Yb, or both, and others.
On replacement of parts. Instead of the resistor with
such resistance has nothing to put another, because its face
value was picked up by myself an educated bet using an
oscilloscope. The transistor structure of any compact n-p-n.
For example KT315, KT3102. Well, if someone - somewhere in the
mouse in bulk space, then he may try to shove back
KT819BM or KT903 or KT908 or not
I remember what else. IC Series 1533 is replaced by 555. You
can try 155 or 561. True I did this replacement does not
produced. But 561ya stood in the scheme, whether printed in the
"spectrophone", or in the "format".
And a little more about the interface board. Inputs for the
buttons to pull up resistors to +5. Resistance from 1K to 30K.
Entrances to the general directions to pull the bus supply.
Resistors are the same.
Now information is for those who do not
Handbook on the chip.
Inputs - 1,3,5,9,11,13.
Outputs - 2,4,6,8,10,12
+5 B - 14
general - 7
I think that the information is exhaustive, and
anyone can modify any mouse up to
Kempston mouse.
