Service manual
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
VCCVCC
TP1
VCC
Size
Scale
CAGE Code
DWG NO
Rev
Sheet
of
D
PYRAMID COMMUNICATIONS
Thursday, February 07, 2008
11
C
15182 Triton Lane #102
Huntington Beach CA 92649
(714) 901-5462 Fax: 901-5472
VHF Rev D TX ONLY
Size
Scale
CAGE Code
DWG NO
Rev
Sheet
of
D
PYRAMID COMMUNICATIONS
Thursday, February 07, 2008
11
C
15182 Triton Lane #102
Huntington Beach CA 92649
(714) 901-5462 Fax: 901-5472
VHF Rev D TX ONLY
Size
Scale
CAGE Code
DWG NO
Rev
Sheet
of
D
PYRAMID COMMUNICATIONS
Thursday, February 07, 2008
11
C
15182 Triton Lane #102
Huntington Beach CA 92649
(714) 901-5462 Fax: 901-5472
VHF Rev D TX ONLY
RF
CONN
Mod Bal
10K
Mod
T/R Shift
Out
Cont Volt
Gnd
15p HV 15p HV33p HV33p HV
5VDC
cw
100nH
100nH
,4,4
Gnd
TX9V
100nH
8nH
1
2
18.5nH
4
3
5
22nH
Tx9V
9VDC
6
7
VCO
100p
C11-C12
R56
2K2
R56
2K2
C97
100p HV
C97
100p HV
R48
22K
R48
22K
L29L29
C102C102
L13
43.5nH
L13
43.5nH
C50C50
C69
3N3
C69
3N3
C93
33p HV
C93
33p HV
U2
MC12202D
U2
MC12202D
OSCIN
1
OSC
2
VP
3
VCC
4
DO
5
GND
6
LD
7
FIN
8
CLK
9
DATA
10
LE
11
FC
12
BISW
13
FOUT
14
0P
15
0R
16
C3
100p
C3
100p
C89
1uF
C89
1uF
Q7
2N4401
Q7
2N4401
JP2JP2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
L32L32
U7
MAV11
U7
MAV11
1
2
3
C101C101
C5
.01
C5
.01
L16
43.5nH
L16
43.5nH
C49C49
C70
3N3
C70
3N3
C16
100p
C16
100p
C103
0
C103
0
R42
47
R42
47
C108
100p
C108
100p
C79
1uF
C79
1uF
R57
7.5
R57
7.5
R55
680
R55
680
U3
LM321
U3
LM321
1
3
4
D5
MMBD914
D5
MMBD914
C94
56pHV
C94
56pHV
C72
1uF
C72
1uF
C48C48
C77
1uF
C77
1uF
U8
MAV11
U8
MAV11
1
2
3
R21
22K
R21
22K
C7
1N0
C7
1N0
C58
1N0
C58
1N0
C47C47
FB3FB3
C105C105
L12
22nH 1008
L12
22nH 1008
R46
1K8
R46
1K8
R59
150
R59
150
R45
68K
R45
68K
R41
100K
R41
100K
C74
1uF
C74
1uF
R58
180
R58
180
C91
100p
C91
100p
R50
220K
R50
220K
L26L26
R14
220
R14
220
L20
43.5nH
L20
43.5nH
FB4FB4
C59
.01
C59
.01
TCXO1
12.8 MHz
TCXO1
12.8 MHz
VCC
1
MOD
2
OUT
3
GND
4
R33
2K7
R33
2K7
Q10
IRLMS6702
Q10
IRLMS6702
C71
.022
C71
.022
C98
1N0
C98
1N0
Q4
85633R25
Q4
85633R25
C67
.1
C67
.1
C112
100p
C112
100p
L30L30
C96
1N0
C96
1N0
R36
47
R36
47
C55
10p
C55
10p
R51
470K
R51
470K
L21
43.5nH
L21
43.5nH
R34
330
R34
330
C8
.01
C8
.01
C90
1N0
C90
1N0
R13
100K
R13
100K
C78
1N0
C78
1N0
D3
0
D3
0
L31
43.5nH
L31
43.5nH
R43
39K
R43
39K
C13
1N0
C13
1N0
R60
47
R60
47
RV1RV1
C68
1uF
C68
1uF
R47
22K
R47
22K
C95
56pHV
C95
56pHV
C24
100p
C24
100p
L25L25
Q2
2N4403
Q2
2N4403
R49
22K
R49
22K
L22
43.5nH
L22
43.5nH
C104C104C100
100p
C100
100p
C6
.01
C6
.01
Q8
MRF4427
Q8
MRF4427
L23L23
R44
39K
R44
39K
C92
1N0
C92
1N0
C14
10p
C14
10p
Q13
MRF1511
Q13
MRF1511
R35
39
R35
39
C4
1N0
C4
1N0
C10
1uF
C10
1uF