68
6881086C22-B
TRN7391C Audio Interface Board Schematic Diagram (Sheet 1 of 2)
AT ELC RECEIVE OUTPUT
FLT_AUD_SHD
IGN
ANA_GND
IGN
2.6 VDC
CONTROL HEAD
MICROPHONE BIAS
ANA_GND
PTT*
AND_GND
A
B
C
A
DIG_GND
RAD_MIC
VU AUDIO BUFFER
400mVrms
DNP
ANA_GND
HUB1
B
C
90mVrms
90mVrms
4.8VDC
DIG_GND
BUS_SHLD
PTT*
11.6 VDC
300mVrms
MIC_LO
RAD_MIC
MIC_LO
MIC_LO
ADJUST TO 1.0 Vrms
ELC RECEIVE AUDIO
LEVEL ADJUST
11.6 VDC
2.0 VDC
TP145
TP86
TP80
TP81
470pF
C149
Q102
TP57
TP14
TP18
TP101
TP93
TP94
TP92
TP90
TP91
TP108
R186
10K
TP96
TP95
TP34
TP88
R188
10
TP36
TP82
TP83
TP56
2.2V
9
10
8
9.6V
R106
100K
J1 44
MC74HC00A
U103
J1 22
J1 28
TP11
TP122
TP121
5V
R119
100K
1uF
C124
R219
10K
9
10
8
4
11
10K
R220
1
U102
MC3303
U102
MC3303
2
3
1
4
11
J2
13
J1 15
J1
MC33074A
U105
2
3
1
4
11
TP87
TP13
TP51
39pF
C120
SWB+
10K
R140
TP58
10
4.8V
J1
R134
Q104
TP143
4.7K
2.2V
R137
75
39pF
C103
10K
R236
C113
22pF
.015uF
C108
Y0
2
Y1
1
Z
4
Z0
5
3
Z1
EN
6
GND
8
VCC
16
VEE
7
X
14
X0
12
13
X1
Y
15
U106
MC14053B
11
A
B
10
C 9
J14
J14
2.2V
A+
R217
120
R216
1.2K
J1 33
J1 30
J1 45
4.7K
R121
Q103
R132
47K
TP3
1
2
3
MC74HC00A
U103
4
5
6
MC74HC00A
U103
J2 12
J2 14
C136
J14
R109
1uF
TP60
100K
TP59
J1 36
Q106
47K
R129
9.6V
TP17
TP27
220pF
C104
.015uF
C107
R130
1K
9.6V
R149
10
R221
1K
TP25
C127
0.1uF
TP10
9
J2 13
J2
21
J2
J2 15
TP61
10K
R116
10K
R114
R145
47K
470pF
10K
C144
J1 31
5V
R144
SWB+
18
J2 20
J2
TP23
R218
100K
47K
R126
47K
R128
9.6V
470pF
C140
J2 16
470pF
C138
J2 22
0.33uF
C100
5V
J1 24
Q101
5V
560
R212
43K
R143
10K
R142
TP106
TP104
TP103
43
J1 18
200K
J1
200K
R122
R120
27
J1 34
J2 10
J1
1000pF
C110
C143
470pF
50
1.8K
R237
47K
J1
100K
R110
U107
2
3
1
4
11
R210
10K
MC3303
VR104
10V
R101
200K
R117
330pF
C111
R127
1K
J1 29
R215
100K
R214
18K
TP32
R123
560
TP35
R213 1K
R238
0
TP16
TP26
TP105
R115
160K
TP102
4.8V
9.6V
9.6V
R124
200K
J2
5
C117
.015uF
4.7K
R135
J15
SWB+
9.6V
5V
J15
J15
19
R118
84.5K
9.6V
J2
100K
R112
C147
0.1uF
C145
470pF
R125
200K
U101
MC3303
6
5
7
4
11
0.1uF
C139
MC3303
9
10
8
4
11
J1 41
6
5
7
4
11
U101
J1 11
U102
MC3303
TP29
TP21
TP31
46
J2 26
5V
J1
J2 17
.015uF
C118
4.8V
17
9.6V
5V
1.2K
R139
J1
75
R138
R111
200K
R187
47K
CR104
38
J1 20
J1
TP37
C146
470pF
R113
U101
MC3303
13
12
14
4
11
84.5K
U101
MC3303
2
3
1
4
11
470pF
C154
TP19
12
11
10
9
C121
39pF
3
4
5
6
7
8
16
15
14
13
J1 23
S101
SWITCH
1
2
4
J1 21
J2
.015uF
10
C116
5V
R211
J1 37
MC74HC00A
U103
12
13
11
14
4
11
10K
R131
28
4.8V
U102
MC3303
13
12
+
+
+
+
_
_
J1 19
J2
18K
R102
J1
4
J1 35
49
J1 47
VR101
J1
J1 48
6.8V
TP4
J1 40
C126
10uF
A+
1.8K
R141
TP78
4.8V
9.6V
TP38
R241
TP119
10K
TP113
TP151
TP150
C112
5V
1uF
0
9.6V
4.7uF
JU101
C101
TP1
1
J1
TP9
5.6V
VR107
C128
0.1uF
11
J11
1
J2
26
TP77
J1
100K
R108
C135
1uF
TP79
TP118
TP89
TP110
TP43
TP44
C158
0.1uF
J2
8
TP146
9.6V
1uF
C157
MOB_RX
DET_AUD
MOB_RX
SPKR_LO
SPKR_LO
BUSY
VSENSE1
VSENSE2
HUB*
VI1
VI3
V03
RESET
RESET
VO1
VO1
RSSI
RSSI
V02
V02
SPKR_HI
SPKR_HI
A+
A+
SWB+
SWB+
SWB+
SWB+
AUX_TX_AUD
AUX_TX_AUD
AUX_RX_AUD
AUX_RX_AUD
FILT_AUD
FILT_AUD
BUS-
BUS-
BUS+
CHAN_ACT*
BUS+1
BUSY1
EMER
5
6
7
8
10
9
11
12
16
15
14
13
17
18
19
20
21
25
24
23
22
26
27
28
29
30
4
3
2
1
MAEPF-27901-O
+
+
_
+
+
_
+
+
_
+
+
_
+
+
_
+
+
_
+
+
_
+
+
_
Summary of Contents for ASTRO Digital Spectra
Page 1: ...ASTRO Spectra Spectra Plus Consolette Instruction Manual ...
Page 10: ...viii 6881086C22 B Notes ...
Page 14: ...xii 6881086C22 B Consolette Installation Guidelines Notes ...
Page 22: ...xx 6881086C22 B ASTRO Spectra Consolette Options Notes ...
Page 26: ...Introduction Options 4 6881086C22 B Notes ...
Page 40: ...Installation Remote Control Installation 18 6881086C22 B Notes ...
Page 72: ...Cable Diagrams Optional Cables 50 6881086C22 B Notes ...
Page 74: ...Diagrams and Parts Lists List of Schematics Boards and Parts Lists 52 6881086C22 B Notes ...
Page 84: ...62 6881086C22 B Notes ...
Page 106: ...84 6881086C22 B Notes ...
Page 110: ...88 6881086C22 B Appendix A Cross Patch Configuration Notes ...