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Codan Radio Communications VT-3-150-SN User Manual

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ELECTRONICS LTD.
DANIELS
TM
 Audio Processor Board Instruction Manual
7-1
7
 
ILLUSTRATIONS, TABLES AND SCHEMATIC DIAGRAMS
7.1
 
Special Jumper Configuration Table
WB VHF/CTCSS
WB UHF/CTCSS
NB VHF/CTCSS NB UHF/CTCSS
TCXO Op Amp
R35
Not Installed
O Ohms
Not Installed
0 Ohms
R32
Not Installed
51K Ohms
Not Installed
51K Ohms
R81
Not Installed
51K Ohms
Not Installed
51K Ohms
R54
Not Installed
100 Ohms
Not Installed
100 Ohms
Auxiliary Op Amp
R57
Not Installed
Not Installed
Not Installed
Not Installed
WB VHF
WB UHF
NB VHF
NB UHF
Default
& CTCSS
& CTCSS
& CTCSS
& CTCSS
Jumper
Type Position
Description
1
XY
Y
Microphone Pre-Emphasis/Flat Audio
Y
Y
Y
Y
2
XY
Y
Balanced Audio Pre-Emphasis/Flat Audio
Y
Y
Y
Y
3
XY
Factory
Custom Temperature Compensation Network Contact Factory
Contact Factory
Contact Factory
Contact Factory
4
XY
Open
Subtone 2
5
XY
Open
Auxiliary Input routing
6
Single
In
Splatter Filter Output
Installed
Installed
Installed
Installed
7
Single
Open
Auxiliary Input routing
8
Single
Open
Direct Coupled final OP Amp O/P
9
XY
Open
Auxiliary Output for Pre-Emphasis
Not Installed
Not Installed
Not Installed
Not Installed
10
Single
Open
4V AC Ground
Not Installed
Not Installed
Not Installed
Not Installed
11
Single
Open
Balanced Input Compression Bypass
12
XY
Open
Tone/Digital Input audio routing
13
Single
Open
Direct Modulation Audio Routing
14
XY
Y
Two Port Polarity Select
Y default OK
Y default OK
Y default OK
Y default OK
15
XY
XY
4V Regulator adjust (Bypassed)
X and Y both
X and Y both
X and Y both
X and Y both
16
Single
In
Subaudible Enable
Installed
Installed
Installed
Installed
17
Single
Open
Balanced Input Adjust Range extend
18
Single
Open
Audio Gate disable
19
XY
Y
Voltage Select (+9.5V/8V) Audio gates
Y
Y
Y
Y
20
XY
Open
Direct Modulation Audio Routing
21
XY
X 
Audio Gate Switch
X 
X 
X 
X 
22
XY
Y
Splatter Filter Enable/Bypass
Y
Y
Y
Y
23
Single
Open
Narrow Band gain reduction
Not Installed
Not Installed
Installed
Installed
24
XY
Factory
Custom Temperature Compensation Network Contact Factory
Contact Factory
Contact Factory
Contact Factory
25
XY
Open
Wide/Narrow Band switched select
Not Installed
X
Not Installed
X
26
Single
Open
Auxiliary output routing
Not Installed
Not Installed
Not Installed
Not Installed
27
XY
Open
Direct Modulation Input Offset Output
28
Single
Open
Direct Modulation Input Routing
Not Installed
Not Installed
Not Installed
Not Installed
29
Single
Open
Coupling Capacitor selection
Not Installed
Not Installed
Not Installed
Not Installed
30
N/A
N/A
This skipped designator has been deleted
31
Single
Open
Splatter Filter output routing
Not Installed
Installed
Not Installed
Installed
32
Single
Open
Coupling Capacitor selection
Not Installed
Not Installed
Not Installed
Not Installed
33
Single
Open
Direct Input Coupling - Auxiliary amplifier
Not Installed
Not Installed
Not Installed
Not Installed
34
XY
Open
Audio Routing
35
XY
Open
Audio Routing
Not Installed
X
Not Installed
X
36
XY
X
AGC Preamp Power select
X
X
X
X
37
Single
Open
Direct Couple  (TCXO)
Not Installed
Not installed
38
Single
In
Low pass enable
Installed
Installed
Installed
Installed
39
XY
X
Low Frequency amplfier bias select
X
X
X
X
40
N/A
N/A
This skipped designator has been deleted
41
Single
Open
Narrow Band gain reduction
Not Installed
Not Installed
Installed
Installed
42
XY
Open
Direct Modulation input bias select
43
Single
Open
Direct Modulation Direct/Cap couple
44
Single
Open
Coupling Capacitor selection
45
Single
In
Coupling Capacitor selection (Default)
Installed
Installed
Installed
Installed