Table of Contents
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R137
R119
J1
22k
20k
1
11
PC STR 2
STR
Q8
R138
R120
R135
R121
22k
10k
22k
20k
2
12
SER
Q7
R122
1
R136
R123
10k
22k
20k
3
13
4
CLK
Q6
U103
R124
23
R125
MC14094BD
10k
20k
14
31
+5V
Q5
R126
R127
10k
20k
R139
7
5
WO 101
Q4
10k
R128
6
WO 102
Q101
R139
10k
20k
3657
6
15
WO 104
R141
Q3
10k
R130
15 OE
16
WO 105
R131
R140
10k
20k
R142
10k
5
17
WO 106
Q2
10k
R132
R133
24
WO 108
10k
20k
4
25
WO 109
CR101
Q1
R134
32
WO 110
20k
33
WO 111
34
WO 112
+5V
R106
10k
2
4 Y7
13
35
WO 113
Y0
R150
U104
R147
10k
HEF405TBTD
10k
14
R146
Y1
22k
6
RF MUX 3 INH 19
E
15
R143
Y2
22k
11
18
A0
R144
22k
10
36
A1
12
R145
Y3
22k
9
A2
1
Y4
3
Z
5
Y5
+5V
R148
2
Y6
22k
V REF EX 14
LPPT 20
R156
22k
6
5
RF MUX1 INH 13
E
Y5
U105
R51
HEF405TBTD
100
3
1
A D LEVEL 27
Z
Y4
R155
22k
9
12
RF DATA C 9
A2
Y3
14
R154
Y1
22k
10
RF DATA B 26
A1
15
R153
Y2
22k
11
2
RF DATA A 8
A0
Y6
4
Y7
Y0
13
TX MOD 22
SYN CS EX 21
HS CS EX 3
3
Z
2
R165
U106
Y6
22k
HEF405TBT
9
A2
D
R164
22k
10
12
A1
Y3
14
R163
Y1
+5V
22k
11
A0
R149
15
Y2
R166
22k
22k
6
13
RF MUX2 INH 10
E
Y0
R160
R161
R162
4
Y7
22k
22k
22k
1
Y4
5
Y5
RSSI 30
RX WB AUDIO 7
RF DATA 28
RF CLK 11
SYN CS RX 29
HS CS RX 12
LOGIC CONTROL
25
TO FAN
J104
FAN CONNECTOR
FAN HIGH 2
FAN 1 BUFFER
R185
22k
3
FAN 1 LOW 1
+
R181
R182
R183
R184
+ C112
2
22
22
22
22
1
FAN HIGH 4
FAN 2 BUFFER
R192
U107B
22k
5
FAN 2 LOW 3
+
2904
7
R188
R189
R190
R191
+ C114
R186
6
R194
22
22
22
22
1
10k
15k
C115
.047
R193
10k
10-7
R104
270k
C110
.1
R103
R111
270k
330
C109
.001
U102A
R102
2
U102B
Q102
R101
R95
2904
2.7k
R105
1
6
2904
3600
1k
1k
2.7k
3
7
+
5
+
C105
R94
39pF
5.1k
R118
R107
20k
560
C111
.047
Q108
1300
R109
R108
1k
U109A
2.7k
3
224
+
1
R52
2
10k
R85
U112A
3
+
470
224
1
C134
2
.018
C136
CR108
C135
39pF
5.1V
.001
R83
R84
1k
1k
R93
U112C
10
470
+
224
8
C140
9
.018
U109B
R151
C151
CR110
C141
39pF
224
5
10k
5.1V
+
.001
7
R91
R53
R92
6
1k
U109D
1k
10k
224
12
+
14
R54
13
10k
R157
10k
R158
10k
R159
10k
U110E
R57
74HC906
10k
12
11
R59
U110F
10k
13
14
R50
4.99k
+26V
R167
1k
R197
10k
U110A
+5V
R63
74HC906
10k
2
3
R65
U110B
10k
4
5
R73
R66
R64
10k
43k
43k
WO 109
R174
8.2k
+26V
R175
U107A
8.2k
2904
1
R169
R179
R187
R176
200k
10k
15k
8.2k
Q107
CR111
2603
U108A
R172
Q106
C113
2904
3
R177
1k
+
3600
1
.047
8.2k
R180
R173
2
10k
3.3k
R178
8.2k
+5V
CR104
5.1V
R170
1k
R171
1.1k
March 1999
Part No. 001-2009-600
F102
SOURCE
L101
2A
+26V
+ C117
+15V
1000
R112
Q104
1k
3657
R100
F101
SOURCE
100
2A
+15V
Q103
R113
1.8k
2603
WO120
R110
R116
R115
Q105
5.1k
470
470
3658
R114
C150
+5V
R117
C116
1.8K
.001
270
.018
R56
R49
R61
CR103
470k
0
43K
3.9V
R45
R76
R55
U111B
100
5
2.7k
+
5k
224
7
R48
C108
C149
6
.018
.1
1k
R46
(4.7k UHF)
100
WO147
WO121
R81
U112B
WO122
5
470
224
+
7
C131
R78
6
.018
WO115
C133
CR107
270k
C132
+15V
39pF
5.1V
.001
R79
R82
R80
1k
270k
1k
WO123
R89
U112D
WO124
12
470
+
224
14
C137
R86
13
.018
R152
C139
CR109
270k
C138
39pF
10k
5.1V
.001
R87
R90
R88
1k
270k
1k
WO125
WO126
WO127 W127
WO 103
SOURCE
+15V
+5V
WO129
U101
WO130
8
1
V IN
78L05
V OUT
C120
C101
+ C102
+ C107
GNDA GNDBGNDC GND
+ C103
C104
C119
WO131
.1
.01
.1
.1
2.2
2.2
2
3
6
7
4.7
WO132
WO133
WO134
WO135
WO134
+15V
R199
10k
R198
10k
NOTES:
1. ALL RESISOTRS ARE IN OHMS AND CAPACITORS IN MIDROFARADS
UNLESS OTHERWISE SPECIFIED.
+15V
R74
2. REMOVE R106 FOR STANDARD POWER UNITS (85-110W)
WO136
REMOVE R150 FOR HIGH POWER UNITS ( > 150W).
1k
WO137
3. IC NUMBER NOT SHOWN:
R168
PIN NUMBERS
10k
WO138
IC
+15V
+5V
GND
U102
8
4
C126
WO139
U103
16
8
.01
U104, U105, U106
16
7,8
WO140
U107, U108, U111
8
4
U109, U112
4
11
WO141
U110
1
8
WO142
C4
+26V
P102 +26V IN
WO143
P101 +26V IN
WO145
P104 GROUND
C6
P105 GROUND
WO144
W144
P103 +15V IN
C3
W118
+15V
C2
W120
CONTROL OUT
C1
W147
RF DETECT FROM PRE-
DRIVER
C1
W121
3
FORWARD POWER
C7
W122
RF OUT 1
C1
W115
1
POWER SENSE
C8
W123
RF OUT 2
C9
W124
RF OUT 3
C10
W125
RF OUT 4
C12
W126
REFLECTED POWER
C5
TEMPERATURE SENSOR
J102
11 PTT
3
4
5
6
7
17 HS LK EX
2
EXCITER
16 SYN LK EX
9 V REF EX
8
1 +15V
13 TX MOD
12 SYN CS EX
18 HS CS EX
19 RF CLK
20 RF DATA
10
14
15
J103
19 HS LK RX
14 SYN LK RX
13 RX INJ
RECEIVER
7 RSSI
9 RX WBAND
20 RF DATA
18 RF CLK
12 SYN CS RX
16 HS CS RX
11
15
17
1 +15V
2
3
4
5
6
8
10
RF INTERFACE BOARD SCHEMATIC
FIGURE 10-12
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