Elecraft KAT100 - Manual (Page 40)

W. Burdick
E. Swartz
Elecraft
Rev. Sht. Date B y
1 of 1
5A
(based on LED Vf=1.9V)
PN2222A
. 0 4 7
R 1 1 6
2 2 0
R 1 1 5
4 7 0
5A
C102
Q102 Q101
Brightness
Control
4.0V DAY (18mA/LED)
2.7V NIGHT (6mA/LED)
6 B 5 9 5 6 B 5 9 5
/SRCLR /SRCLR SRCK
SOUT
SRCK
SOUT
. 0 4 7
RCK SIN GND VCC
/Q
2
/Q3 /Q5 /Q4 /Q1 /Q0 /Q6 /Q7
GND GND RCK SIN GND VCC
/Q
4
/Q3 /Q0 /Q7 /Q6 /Q2 /Q5 /Q1
GND GND
C101
12 13
/G
5 4 17 16 18
10 11 19
U 1 0 2
12 13
/G
16 6 5 15 18
10 11 19
U 1 0 1
9 8 3
6
2
7 15 14
9 8 3
14
2
7 4 17
LED
D 1 0 1 D 1 0 2 D 1 0 3 D 1 0 4 D 1 0 5 D 1 0 6 D 1 0 7 D 1 0 8 D 1 0 9 D 1 1 0 D 1 1 1 D 1 1 2 D 1 1 3 D 1 1 4
DATA CLOCK
Ant. 1 Ant. 2 1 . 0 1 . 2 1 . 3 1 . 5 1 . 7 2 . 0 2 . 5 3 . 0 4 . 0 5 . 0 LP HP
R 1 0 3
1 2 0
R 1 0 4
1 2 0
R 1 0 5
1 2 0
R 1 0 6
1 2 0
R 1 0 7
1 2 0
R 1 0 8
1 2 0
R 1 0 9
1 2 0
R 1 1 0
1 2 0
R 1 1 1
1 2 0
R 1 1 2
1 2 0
R 1 0 1
1 2 0
R 1 0 2
1 2 0
R 1 1 3
1 2 0
R 1 1 4
1 2 0
/NIGHT
1 0 1 1 1 2 1 2 3 4 5 6 7 8 9
J 1 0 1
RF Board
GREEN YELLOW RED GREEN YELLOW GREEN YELLOW
= On bottom of PC board.
D 1 0 1 - D 1 1 4
ANODE
CATHODE
LOAD
KAT100 Front Panel Board
Appendix A
B 1 / 4 / 0 3