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March 1999
Part No. 001-2009-600
10-7
RF INTERFACE BOARD SCHEMATIC
FIGURE 10-12
PC STR 2
R138
22k
1
4
23
31
R136
22k
R135
22k
R137
22k
Q101
3657
R142
10k
R141
10k
R139
10k
R140
10k
+5V
CR101
U103
MC14094BD
1
2
3
15
OE
CLK
SER
STR
R119
20k
R120
10k
R121
20k
R122
10k
R123
20k
R124
10k
R125
20k
R126
10k
R127
20k
R128
10k
R139
20k
R130
10k
R131
20k
R132
10k
R133
20k
R134
20k
12
11
13
14
7
6
5
4
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
+5V
R106
10k
2
R150
10k
R146
22k
R147
10k
RF MUX 3 INH 19
J1
U104
HEF405TBTD
R143
22k
R144
22k
R145
22k
4
Y7
6
11
10
9
3
E
A0
A1
A2
Z
13
Y0
Y1
Y2
Y3
Y4
Y5
Y5
14
15
12
1
5
2
+
U109A
224
2
3
7
R52
10k
+
U109D
224
13
12
14
R54
10k
+
U109B
224
6
5
7
R53
10k
+
U102A
2904
3
2
1
R95
1k
R101
1k
C105
39pF
Q108
1300
R108
2.7k
R109
1k
+
U102B
2904
R102
2.7k
C111
.047
R118
20k
6
5
7
C109
.001
R103
270k
R105
2.7k
R94
5.1k
Q102
3600
R107
560
R110
5.1k
R116
470
R117
270
R115
470
R104
270k
C110
.1
Q104
3657
Q103
2603
R111
330
R100
100
R112
1k
R113
1.8k
Q105
3658
R114
1.8K
R61
43K
C116
.018
CR103
3.9V
R81
470
+
U112B
224
5
6
1
C132
.001
R80
1k
R79
1k
C133
39pF
CR107
5.1V
C131
.018
R78
270k
7
R55
2.7k
+
U111B
224
5
6
C150
.001
R56
470k
R45
100
C108
.018
C149
.1
R76
5k
R48
1k
(4.7k UHF)
R49
0
+15V
+5V
R46
100
C1
WO147
W147
RF DETECT FROM PRE-
DRIVER
C2
WO120
W120
CONTROL OUT
C1
1
WO115
W115
POWER SENSE
+15V
C3
WO144
W118
+15V
+15V
F101
2A
SOURCE
P103 +15V IN
W144
C1
3
WO121
W121
FORWARD POWER
C7
WO122
W122
RF OUT 2
1
R85
470
+
U112A
224
3
2
C135
.001
R84
1k
R83
1k
C136
39pF
CR108
5.1V
C134
.018
R82
270k
C8
WO123
W123
14
R89
470
+
U112D
224
12
13
C138
.001
R88
1k
R87
1k
C139
39pF
CR109
5.1V
C137
.018
R86
270k
C9
WO124
W124
RF OUT 3
8
R93
470
+
U112C
224
10
9
C141
.001
R92
1k
R91
1k
C151
39pF
CR110
5.1V
C140
.018
R90
270k
C10
WO125
W125
RF OUT 4
C12
WO126
W126
REFLECTED POWER
C5
WO127
W127
TEMPERATURE SENSOR
V REF EX 14
LPPT 20
WO 103
11 PTT
WO132
WO130
WO131
WO129
6
5
4
3
J102
R156
22k
R51
100
R155
22k
R154
22k
R153
22k
R157
10k
R158
10k
R159
10k
U110E
74HC906
U110F
Y6
14
E
65
13
1112
R57
10k
R59
10k
1
12
14
15
Y4
Y3
Y1
Y2
3
9
10
11
Z
A2
A1
A0
U105
HEF405TBTD
13
Y0
U106
HEF405TBT
D
R165
22k
Z
3
R164
22k
R163
22k
R166
22k
R197
10k
+5V
R50
4.99k
R167
1k
+26V
U110A
74HC906
U110B
32
54
R73
10k
R66
43k
R64
43k
R63
10k
R65
10k
17 HS LK EX
16 SYN LK EX
10
14
15
WO133
7
13 TX MOD
12 SYN CS EX
18 HS CS EX
WO135
9 V REF EX
WO134
8
1 +15V
2
+15V
WO134
19 RF CLK
20 RF DATA
R198
10k
R199
10k
J103
13 RX INJ
19 HS LK RX
14 SYN LK RX
7 RSSI
9 RX WBAND
20 RF DATA
18 RF CLK
12 SYN CS RX
16 HS CS RX
1 +15V
+15V
2
WO136
3
WO137
4
WO138
5
WO139
6
WO140
8
WO141
10
WO142
17
15
11
R162
22k
R161
22k
R160
22k
9
10
11
6
Y0
Y2
Y1
Y3
Y6
A2
A1
A0
E
13
15
14
12
2
RF MUX1 INH 13
A D LEVEL 27
RF DATA C 9
RF DATA B 26
RF DATA A 8
TX MOD 22
SYN CS EX 21
HS CS EX 3
R149
22k
+5V
RF MUX2 INH 10
RSSI 30
RX WB AUDIO 7
RF DATA 28
RF CLK 11
SYN CS RX 29
25
FAN HIGH 2
FAN 1 LOW 1
FAN HIGH 4
FAN 2 LOW 3
18
36
5 WO 101
6 WO 102
15 WO 104
16 WO 105
17 WO 106
24 WO 108
25 WO 109
32 WO 110
33 WO 111
34 WO 112
35 WO 113
J104
FAN CONNECTOR
R181
22
R182
22
R183
22
R184
22
R185
22k
+
C112
1
+
U107A
2904
R187
15k
C113
.047
3
2
1
R186
10k
5
FAN 1 BUFFER
Y6
Y7
2
4
R188
22
R189
22
R190
22
R191
22
R192
22k
+
C114
1
+
U107B
2904
R194
15k
C115
.047
5
6
7
R193
10k
FAN 2 BUFFER
1
4
Y7
Y4
Y5
Q107
2603
+26V
R179
10k
R180
10k
CR104
5.1V
R174
8.2k
R175
8.2k
R176
8.2k
R177
8.2k
R178
8.2k
Q106
3600
R173
3.3k
R172
1k
+
U108A
2904
R169
200k
1
3
2
R168
10k
+5V
R170
1k
R171
1.1k
R74
1k
C126
.01
RF OUT 1
P105 GROUND
P104 GROUND
C6
C4
WO145
P101 +26V IN
P102 +26V IN
+26V
WO143
L101
+
C117
1000
F102
2A
+26V
SOURCE
NOTES:
1. ALL RESISOTRS ARE IN OHMS AND CAPACITORS IN MIDROFARADS
UNLESS OTHERWISE SPECIFIED.
2. REMOVE R106 FOR STANDARD POWER UNITS (85-110W)
REMOVE R150 FOR HIGH POWER UNITS ( > 150W).
3. IC NUMBER NOT SHOWN:
U102
U103
U104, U105, U106
U107, U108, U111
U109, U112
U110
8
IC +5V GND
PIN NUMBERS
+15V
4
16
16
8
1
4
8
7,8
4
11
8
EXCITER
RECEIVER
R151
10k
R152
10k
CR111
LOGIC CONTROL
TO FAN
HS CS RX 12
WO 109
R148
22k
+5V
C101
.01
+
C107
2.2
+
C102
2.2
C120
.1
8
V OUTV IN
1
2
367
GNDA
GNDBGNDCGND
U101
78L05
+
C103
4.7
C104
.1
C119
.1
+5V
SOURCE
+15V