9
Construction
C6 :
10µF
C7 :
100µF
13. Electrolytic Capacitors.
Watch the polarity !
SK1 : 2p
SK2 : 2p
16. Pin headers
T1 : BC5
57
B
T2 : BC5
4
7B
10. Transistors
C...
Power indication, make your
choice as you prefer:
LD17 : 3mm green clear
OR
3mm red
11. LED. Watch the polarity!
LD1
CATHODE
X1 : 4MHz
12. Quartz crystal
X...
RY1 : VR15M121C
14. Relay
RY...
15. IC's. Watch the position
of the notch!
IC1 : VK8046
Programmed PIC16C55A-04 ! or eq.
IC2 : ULN2803
PIN 1
1
SK1
SK2
27mm
Summary of Contents for K8046
Page 2: ......
Page 35: ...35 Mounting the keyboard WALL MOUNTED Fig 23 ...
Page 37: ...37 PANEL MOUNTED Mounting the keyboard Fig 25 ...
Page 45: ...45 19 PCB layout PCB ...
Page 46: ...46 PCB ...