Clime #03 25 июля 1998

Железо

Stainless Steel - Revised Scheme of any mouse to Kempston mouse.

               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.