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Contents
1. Introduction
General
...........................................
7
2. Technical data
General
...........................................
7
Transmitter
.......................................
7
Receiver
..........................................
7
Tone receiver and tone transmitter
...............
7
Regulator
.........................................
7
Cipher
............................................
7
3. Installation
General
...........................................
8
Divided installation
...............................
8
Installation of the control unit
....................
9
Installation of radio and cipher
...................
9
Installation of handset
with holder
........................................
9
Installation of loudspeaker ......................
10
DC
power connection
..........................
10
External alarm relay ............................ 10
Antenna installation
............................
10
4. Operating instructions
General
.........................................
11
Controls and indicators .........................
11
Button set
.......................................
12
Display
.........................................
12
Incoming calls
..................................
13
Outgoing calls .................................. 13
Other functions ................................. 14
Who has called ................................. 14
Status reporting ................................. 14
Accessories
.....................................
15
5. Circuit description of radio parts
Regulator
.......................................
15
Reciver
.........................................
15
RF
section and first IF section ..................
15
Second IF section ............................... 15
Squelch and
AF
sections ........................
15
Duplex transmitter
..............................
16
Generation on the carrier
.......................
16
Controlling the
VCO
........................... 16
Power amplification
.............................
16
Frequency generator
............................
16
Generation of the carrier ....................... 17
Generation
of
the voltage ...................... 17
Acquisition sequence ........................... 17
Control sweep when the
VCO
is
locked on ..... 19
Divisior and control voltage .................... 19
6. Description of the logic parts
General
.........................................
20
Block diagram description of the
micro computer
.................................
21
General program description
of
the
100 channel standard program
..................
21
7. Description of the cipher circuits
General
.........................................
23
Mechanical design ..............................
23
Transmission of plain text ...................... 24
Transmission of enciphered message ............ 24
8. Checking and adjusting
General
.........................................
25
Test equipment ........
..
.......................
25
Test set up ......................................
25
Checking the regulator .......................... 26
Checking and adjusting the frequency
generator ....................................... 26
Checking and adjusting the 1 band receiver ....
27
Checking and adjusting the duplex transmitter 27
9. Trouble shooting
Trouble shooting on unit level
in the car ........................................ 28
Central service ..................................
28
10. Spare
parts
Duplex transmitter .............................. 29
1 band receiver ................................. 30
Frequency generator ............................ 31
Regulator ....................................... 31
Logic board ..................................... 32
Control board ................................... 33
PROM
board ................................... 33
Display board ................................... 34
Bridgin board ................................... 34
Interconnection unit for cipher ................. 35
Connection unit ................................. 35
Interconnection unit ........................... . 35
Handset with holder ............................ 35
Interface board ................................. 35
Complete units ................ .................. 36
11. Block diagram, circuit diagrams and
component layout
Block diagram .................................. 39
Regulator board ................................ 41
Antenna filter board ..
..
........................ 43
Connector board for de and radio .............. 45
Connector board for loudspeaker and
handset
.........................................
47
Connector board for radio and logic boards .... 49
Connector board for cipher .....................
51
Bridging board for cipher ....................... 53
Cipher board 1
.................................
55
Cipher board 2 ................................. 57
Interface board for data communication ........ 59
PROM
board ................................... 61
Display board ................................... 63
Control board and code board .................. 65
Frequency generator board ..................... 67
Duplex transmitter board .. ..................... 69
1 band reciever board ........................... 71
Basic logic boards ............................... 73
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