#Z80 #01 07 мая 1998

Железо

Exchange of experience - The scheme of Kempston-mouse.

          Sharing experiences: Kempston mouse



   (C) JTN / FDM


   As you probably guessed, we are here
will focus on mice. And according to this, who these things 
device available and working properly, or you

it does not need this section can not
read.

   Frankly, I do not like a lot of writing and
will address in this article only for those moments
that are poorly covered in other publications, and
also bring an improved scheme for this
devaysa.

   Briefly the scheme:

   a) apki (AP6) are replaced by KP11, benefits
clear: fewer legs, lower cost, more convenient to burn on
on the counters (IE11);

   b) attempts to replace the Schmitt trigger (TL2) on
561LN2 or transistors or to no good
lead;

   c) If you have an ordinary PC-shnaya mouse (as in
I), then I can advise the following (by the way,
modifying your mouse, I tried as much as possible
less cutting of roads inside ...): I stood 2
optocoupler to 3 feet each, the average - the total
output (+5 V or +12 V, see below), the other two (feet)
cut off - it signals: X1, X2, Y1, Y2 (in Scheme
only X1), 2 LEDs connected in series
- In general and through a resistor to food:
resistor must be removed and put another
(Depending on voltage), a resistor with one end
soldered to the diode and the other on the total of companies
(Click on the board not soldered! To exclude
food mikruhi).

   d) the supply voltage of optocoupler: to start
I advise to apply 5 volts (the middle leg), and
then, picking up resistor at the input to achieve DD8
stable periodic output signal. If
resistor has to do too
small (between input and DD8 +5), then
meaning lodge +12 (as I did);

   e) because I do not hunt was cut legs
mikrikov (SA1-3) and the total of their output was hanging on 
the 12c, the I came up short on two shemku rezyukah,

and buttons can be used as normal
closed, this part I will not comment on
hope to figure it out;

   Now used parts and the scheme itself:

   DD1-4 K561IE11;

   DD5-6 K1533KP11;

   DD7 K1533LL1;

   DD8 K1533TL2;

   DD9 K1533LP8;

   Note: The 1533 series replaced the 555,
the use of 155 is not advisable;
DD4 DD6
2
XA June 15 A0
C CT D1 5 MD
XB October 1911 A1 4 D3
UD D2 11 D0
April 14 A2 7 D0
D1 D4 14 D1
Feb. 12 9 A3 D1
3 D2 D2 D8
13 B0 12 D2
6 D3 D4
3 B1
D8 1910
1 B2
SE 13
5 B3
CI 1 July
9 C S
R 15
0E
DD5
DD3 2
A0
15 MD on May 6
C CT D1 A1 4 D7
11 October 1911 D0
UD D2 A2 7 D4
April 14, 1914 D1
D1 D4 A3 9 D5
12 2 3 D2
D2 D8 B0 12 D6
June 13 D3
D4 B1
March 10
D8 B2
January 1913
SE B3
May 1
CI S
September 1915
R 0E

A10

DD1 DD7.2

YA June 15 5 1 6
C CT D1
YB 10 April 11
UD D2
April 1914
D1 D4 DD8.1
February 12
D2 D8 A8 13 S 12
13
D4
3
D8 DD7.1
1
SE IORD 1 1 3
5
CI 7 A5 2
9 C
R

DD7.3
DD2
9 1 8
June 15
C CT D1 10
October 1911
UD D2
April 1914
D1 D4
February 12
D2 D8
13
D4 DD9.1 DD9.2
3
D8 February 1 Z 3 5 1 Z 6 D0
1
SE 1 April
5 0E 0E
CI D1
9 K1
R DD9.3
K2 9
1 Z 8 D2
K3
10
DD8.X 0E
10K
X1 1, S 2 XA +12 V / K1
/
SA1

1K 2K


DD8.6

A7 11 S 10

DD7.4 DD9.4
RD 12
January 12, 1911 1 Z 11 IORD

IORQ 13 13
0E



   P.S. diagram drawn in the editor at write3
Profi under CPCP-M