Elecraft K2 Owner's Manual - Manual (Page 146)

RF Output Detector
Band-Pass Filters
I n t e r f a c e
Low-Pass Filters
X v e r t e r
K2 RF Board
W. Burdick
BPF Relays
PRE-DRIVER
VCO Relays
E. Swartz
Pre/Attn.
Elecraft
PIC16C72
(Sh. 2)
(Sh. 4)
(Sh. 4)
HI IP
80/160m
30m/80m
10m/17m
12m/15m
RX Ant.
1N4007
1N4007
Switch
20/30m
15/17m
10/12m
1N4007
3 of 4
50pF 50pF
5-30pF 5-30pF
5-30pF 5-30pF
AUXBUS
4.0MHz
Relays
Relays
Bypass
Bypass
1N5711
Rev. Sht.
100µH
100µH
47µH
78L06
Date
K11B
K10B
K11A
K10A
RFC1
RFC2
1K
RFC3 1K
MCLR
OSC1
OSC2
K12B K12A
C218
C220
C222
C210
C212
C214
C108
1.5K
C107
C225
C226
C227
C197
C199 C201
.001
C110
C109
C114
C113 C198 C200
C219 C221
C211 C213
C203
C202
C195 C223 C216
C207
C190 C191 C192
226 Ω
C204
C139
C140
.001
.001
.001
100K
.001
LPF
33µH
XVTR
K9B K9A
.01
BPF
C77
1200 1800 1200
390
680
330
100
220 220
150
220
100
82
150
68
C30 C36
C33
K1A
K5A K5B
K1B
K8B K8A
C16
C19
C25
C22
K4A K4B
C20
C24
C35 C31
C42 C48
C45
K7A K7B
C47 C43
T-R
R38
LPF
L11
L12 L13
.01
C34
C44 C46
C32
C21 C23
C11
C12 C15
L10
R67
.01
L16 L17
L25 L26
L18 L19
L23 L24
L21 L22
.01
.01
.01
R68
27 150
12 39
10 33
820
100 4.7pF
100
820
1800
560 560
1800
330
47 3.3 pF
47
330
470
56
2.2
56
470
330
33
1
33
330
L20
47
120
K2A K2B
80m
RA4
RC0
RC1
RA0
RA1
RA2
RA3
RA5
VSS
RC2
RC3 RC4
RC5
RC6
RC7
VSS
VDD
RB0
RB1
RB3
RB4
RB5
RB6
RB7
RB2
IN
K12
K8
C27 C9 C26
K9
K13
K14
K15
K16
K17
C80 C81
R39
R64
C38 C49 C37
C79
C57
C82
100
C13
1200
C14
0.1
R69
C39
C4 C8
C6
C7
L4
L8 L9
D9
D1
C5
D2
D4
C17
By
L1 L2
L3
Q2
8R
K3
K6
10
14 15
20
25
28
U1
Z5
U2
OUT
K2 1
K3
K1
K4
K5
K7
K6
K10 1
K11
1
1
10 11 12 13 14 15 16
J14
L5
1%
1%
W6
J13
P6
W1
2
4
3
2
4
3
9
7
8
9
7
8
9
7
8
9
7
8
9
7
8
9
7
8
9
7
8
2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
9
7
8
2
4
3
9
7
8
2
4
3
9
7
8
2
4
3
9
7
8
2
4
3
9
7
8
1
5
10
10
10
10
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8
1
2
4.7µH 4.7µH
1 6 0 m /
R X A n t.
Aux. RF
12V
6V
160RY
RXRY
RXRY RY COM
RY COM
2.7K
R66
V RFDET
D3
ZVN4424A
100K
R37
8R
8T
8R
AUXBUS
6V
6V
4.7µH 4.7µH
4.7µH 4.7µH
1µH 1µH
1µH 1µH
/CLASS AB
15µH
RFC7
C104
68
1N4007
D5
8R
2.7K
R34
160RY
10K
R65
6V
Appendix B
I/O Controller
D
S
G
J4
Ant.
However, these pins may be connected to other relay pins
or to other components on either side of the PC board.
C17, C27, C195, C204, C207, C216, C223
.001
C208
1 2 3
J15
40/60m
60m
X
8T
G
8T
C224
.047
RF
G
20/30m
10/12m
15/17m
40/60m
C228 C229
56 220
C28
12
C29
12
or 16F872
ALL RELAY BYPASS CAPACITORS ARE .001µF
20m/
160m
1/27/04 F
(NOTE 1)
NOTE2: Pins 5 and 6 of relays are not connected internally.
NOTE1: When the K60XV (transverter and 60 m) option is installed,
C6 must be removed and J15 installed in its place, on
the top side of the PC board.