Appendix b – Elecraft K1 User Manual
Page 77
Pushbutton Switches
W. Burdick
E. Swartz
Elecraft
1 of 1
MSG
Rev.
Sht.
RIT
WPM -
Date
MENU
S5
By
S1
S6
S3
S2
BAND
Appendix B
WPM +
S4
4.000MHz
X1
1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0
1
2 3 4
5
6
7
8
9
J1
ATTEN
MCLR
OSC1
OSC2
RA4
RC0
RC1
RA0
RA1
RA2
RA3
RA5
RE0
RE1
RE2
VDD
VSS
RC2
RC3
RD0
RD1
RD2
RD3
RC4
RC5
RD4
RD5
RD6
RD7
VSS
VDD
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
RC6
RC7
1 0
1 5
2 0
2 1
2 5
3 0
3 5
4 0
1
5
U1
1
2
3
4
5
6
7
8
RP1
DISPLAY
EDIT
FILTER
C1
C2
R2
10K
AF Gain
AF2
AF1
R4
R5
R3
10K
O f f s e t
OFFSET
6A
6A
6A
KEYIN
RF/SMTR
VSS
SCL
VCC
SDA
WP
A 0
A 2
A 1
1
2
3
4
5
6
7
8
U3
K1 Front Panel Board
OUTA
OUTB
AD0
GND
VDD
AD1
SCL
SDA
5
6
7
8
1
2
3
4
U2
second label corresponds to switch HOLD.
MAX518
D/A Converter
EEPROM
24LC04
MCU
PIC16C77
1K
10K
10K
Q2
G
S
D
D2
R6
R13
R7
2N7000
YELLOW (ATTN)
12.7K
3.92K
4 7 0
DVM/ATTN
GREEN (RIT)
ORANGE (XIT)
XFIL/TONE
REC
RF/SMTR
DVM/ATTN
8 2
8 2
6A
3DP
2DP
COM
DP
DP
3E 3D 3C
2E 2D 2C
1E
1 0
1D
11
1C
12
1B
1 3
1 A
1 4
1F
1 5
1G
1 6
2B
1 7
2 A
1 8
2F
1 9
2G
2 0
3B
2 1
3 A
2 2
3F
2 3
3G
2 4
A
B
C
D
E
F
G
A
B
C
D
E
F
G
A
B
C
D
E
F
G
1
2
3
1
2
3
4
5
6
7
8
9
DS1
LCD
1 %
1 %
VFO POT
6B
R1
2
1
3
VFO POT
100K
6R/AUX
ccw
cw
cw
ccw
To RF-P1
SDA
SCL
C5
.01
ccw
cw
6T
/OFFSET
/OFFSET
KEYIN
PF1
Q1
COUNTER
R11
R12
100K
2.7K
6A
2N4124
OUT
GND
IN
U4
ZR78L06C
12V
12V
5
6
7
+
-
U5B
D1
C4
.047
3
2
1
+
-
8
4
U5A
R9
R10
R8
6A
100K
100K
LM358
C6
.01
2 2
R15
R14
1K
1K
First label corresponds to switch TAP,
RFC1
RFC2
6R/AUX
6T
POWER
Counter Amp.
Tuning
VFO
R16
6A
2.7K
6B
6B
82 µH
RFC1, 2 =
E
R19
100K
1 / 1 5 / 0 2