Skanti TRP 5000 User manual

TRP 5000
INSTRUCTION MANUAL
CONTENTS
Page
1. INTRODUCTION
1 - 1
2. OPERATING INSTRUCTIONS
2.1 Distress Operation on 2182 kHz
2.2 Tuning to 2182 kHz
2.3 Tuning to a Frequency Other than 2182 kHz
2.4 Operating Controls and their Functions
2.5 Filter Cleaning
2 –1
2 –1
2 –1
2 –2
2 –2
2 –2
2 –5
3. INSTALLATION
3.1 Types of Installations
3.2 Removal of Units
3.3 Mounting the Cabinet
3.4 Connection to the Permanent Installation
3.5 Earth Connections
3.6 Antennas
3.7 Remote Speaker
3.8 Transmitter-on Indication
3.9 Replacement of Power Pack
3.10 Optional Terminal Strips
3.11 Programming of MEMOFIY /238\ , General
3.12 Ordering Programmed PROM’s
3.13 Instruction for use of PROGRAMMING IINIT /241\
3.14 Adjustment of Antenna Tuning
3 –1
3 –1
3 –1
3 –1
3 –1
3 –2
3 –3
3 –5
3 –5
3 –5
3 –5
3 –7
3 –8
3 –14
3 –17
4. TECHNICAL DATA
4 –1
5. TECHNICAL DESCRIPTION
5.1 Mechanical
5.2 Circuit Description General
5.3 Circuit Summary, Exciter E 5000
5.4 Circuit Description, Exciter E 5000
5.5 Circuit Summary, Transmitter Power Amplifier T 5000
5.6 Circuit Description, Transmitter Power Amplifier T 5000
5.7 Circuit Summary, 24 V DO Power Pack P 5000
5.8 Circuit Description, 24 V DC Power Pack P 5000
5.9 Circuit Summary, AC Power Pack P5001
5.10 Circuit Description, AC Power Pack P 5001
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5 –1
5 –1
5 –2
5 –3
5 –10
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TRP 5000
INSTRUCTION MANUAL
CONTENTS
Page
6. SIMPLE SERVICE
6.1 Incorrect Operation
6.2 Battery
6.3 Checking the Antenna Tuning
6.4 Using the CHECK SWITCH
6.5 Replacement of Fuses
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6 - 1
6 –1
6 –1
6 –1
6 - 2
7. REPAIR AND ALIGNMENT
7.1 Introduction
7.2 Cross Slot Screws
7.3 Locating Sub-units and Components
7.4 Locating Faults
7.5 Test Points
7.6 AC Voltages
7.7 DC Voltages
7.8 Replacement of Valves
7.9 Adjustments
7.10 /232\ Realignment of 1.4 MHz EXCITER
7.11 /233\ Realignment of RF TRANSLATOFT
7.12 /234\ Realignment of CONTROL CIRCUIT AND TONE
GENERATORS
7.13 /235\ Realignment of HARMONIC GENERATOR
7.14 /236\ Realignment of VCO
7.15 /240\ Realignment of MASTER OSCILLATOR
7.16 /251\ Realignment of DRIVER
7.17 /254\ Realignment of VOLTAGE REGULATORS
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7 - 1
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7 –2
7 –2
7 –3
7 –4
7 –5
7 –8
7 –9
7 –10
7 –10
7 –10
7 –10
8. PARTS LISTS AND CIRCUIT DIAGRAMS
8.1 Numbering
8.2 Switches
8.3 Terminals
8.4 Voltages
8.5 Test Points
8.6 Symbol Explanation
8.7 Abbreviations
8.8 Parts Lists
8.8 Block diagram, Exciter E 5000
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8 - 1
8 - 1
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8 - 2
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8 - 5
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LIST OF ILLUSTRATIONS
Page
Front panel and operating controls
PROM-types which can be installed in the MEMORY /238\
Drilling plan for mounting of TRP 5000
TRP 5000 cabinet, standard version
TRP 5000 cabinet, optional terminal strips installed
Terminal Strip A
Terminal Strip B
Terminal Strip C
Terminal Strip D
Installation of external antenna relay
Initial tab settings, Lower GT band
Initial tab settings, Upper CT band
Initial tab settings, 4-6 MHz bands
Initial tab settings, 8-16 MHz bands
Initial tab settings, 22-25 MHz bands
T 5000 Tuning Chart
Programming Work Sheet
Function table for 234IC5
Function table for 235IC4
Location of circuit boards, E 5000
Location of circuit boards, T 5000
Location of circuit boards, P 5000
Location of circuit boards, P 5001
1-2
3-6
3-20
3-21
3-22
3-23
3-24
3-25
3-26
3-27
3-28
3-29
3-30
3-31
3-32
3-33
3-34
7-11
7-12
8-56
8-57
8-58
8-59

LIST OF DIAGRAMS
Page
Block Diagram, Exciter E 5000
Block Diagram, Transmitter Power Amplifier, T 5000
Block Diagram, 24 V DC Power Pack, P 5000
Block Diagram, AC Power Pack, P 5001
Keying circuit, simplified diagram, 24 V DC
Keying circuit, simplified diagram, AC
/230\ E 5000 Wiring Diagram, /231\ Motherboard
/232\ 1.4 MHz Exciter
/233\ RF Translator
/234\ Control Circuit and Tone Generators
/235\ Harmonic Generator
/236\ VCO
/237\ Frequency Dividers
/238\ Memory
/239\ Display and Keyboard
/240\ Master Oscillator
/241 \Programming Unit
/250\ T 5000 Wiring diagram
/251\ Driver
1252\ Meter Circuit
1253\ Band indicator
/254\ Voltage Regulators
/260\ P 5000 24 V DC Power Pack Wiring Diagram
/261\ Converter-driver, LT-rectifiers and Stabilisers
/262\ HT-rectifiers and Base Keying Circuit
/262\ Driver and Grid Voltage Stabilisers
/264\ input Voltage Sensor
/265\ P 5001 AC Power Pack Wiring Diagram
/266\ LT-stabilisers
/267\ HT-rectifiers
/268\ Driver and Grid Voltage Stabilisers
TRP 5000 Cabinet Wiring
Terminal Strip A
8-60
8-61
8-62
8-63
8-64
8-65
8-67
8-69
8-71
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8-75
8-77
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1. Introduction
1.1 The TRP 5000 is a single side band radiotelephone transmitter receiver
combination for duplex, semi-duplex and simplex telephone traffic in
the 1.6-4 MHz coastal telephone band and in the maritime mobile short
wave bands between 4 and 27.5 MHz. In addition the TRP 5000 provides
facilities for radiotelegraph and telex transmission and reception
The TRP 5000 is composed of the T5000transmitter power amplifier, the P
5000 (24 V DC) or the P 5001 (AC) power pack, the E 5000 exciter and
the R 5000 receiver. This instruction manual describes the Transmitter
Power Amplifier, the Exciter and the Power Packs, while the Receiver is
covered in a separate manual.
The transmitter is fully synthesised and provides keyboard selection of
up to 256 pre-programmed frequencies, which can be freely distributed
in the maritime frequency bands.
Silicon transistors and integrated circuits are used throughout except
for the transmitter power amplifier stage. These features in
conjunction with the fact that no crystal ovens are used enable the
transmitter to be ready for operation within 30 seconds after being
switched on.
The cabinet is a sturdy 19-inch rack construction containing all
necessary inter- connections.
Because we are constant processing the experience gained during the
production and operation of our equipment, it is possible for minor
modifications to occur relative to the information given in this
instruction manual. Wherever practicable, however, any corrections will
be listed on a correction sheet at the back of the front cover of this
manual.

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2. Operating Instructions
2.1 Distress Operation on,2182 kHz
Set controls as fellows:
A SUPPLY to TRANSMIT
B C BANDs to 2182 kHz
D VOLUME clockwise
E SENSITIVITY fully clockwise
F MODE to TRANSMIT ALARM
G Press and release ALARM START
The alarm signal is now transmitted for approx. 45 seconds and may be
monitored in the handset earpiece. When the alarm signal ceases depress
handset key and, speaking clearly into microphone, transmit distress
message.
If it is required to repeat the alarm signal transmission, it Is only
necessary to press and release the ALARM START push button again.
An alarm signal transmission may be interrupted at any time by turning the
MODE switch to A3H.
NOTE: In the TRANSMIT ALARM mode on 2182 kHz the power output of the
transmitter is automatically set to FULL POWER SIMPLEX independent of
the setting of the POWER switch.
2.2 Tuning to 2182 kHz
1. Set SUPPLY switch to TRANSMIT.
30 seconds after switching on the transmitter is ready for operation.
2. Set BAND switch to 2182 kHz.
The band-indicator lamp will show constant light indicatingthat2182
kHz is selected. The FREQUENCY NO display will extinguish.
3. Press TUNE button and adjust TUNING control for maximum deflection on
ANTENNA CURRENT meter.
The tuning range on 2182 kHz is reduced so that power is transmitted
even when the TUNIN-G control is not adjusted.
The transmitter is now ready for operation.
NOTE: The type of service used on 2182 kHz is A3H, simplex. This mode is
automatically selected when the BAND switch is set to 2182 kHz, and the
MODE switch can therefore be set to any position except TESTALARM. The
equipment will also work in the simplex mode even if the POWER switch is
in a DUPLEX position.

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2.3 Tuning to a Frequency Other than 2182 kHz
1. Set SUPPLY switch to TRANSMIT.
30 seconds after switching on the transmitter is ready for operation,
2. Set BAND switch to any band except 2182 kHz
3. Turn DIMMER control fully clockwise
4. If FREQUENCY NO display does not show zero, clear display using C key
of keyboard.
5. Look up desired frequency in frequency chart and read Frequency -No
6. Key Frequency No. into keyboard. The selected Frequency No. will be
displayed.
7. Set BAND switch to position indicated by flashing band indicator lamp.
If no flashing occurs the BAND switch is already correctly set.
8. Press TUNE button and adjust TUNING control for maximum deflection on
ANTENNA CURRENT meter.
9 Select desired type of service with MODE and POWER switches.
Transmitter is now ready for operation
NOTE: Transmission is inhibited if the mode setting does not correspond
with the frequency selected. On radiotelephone frequencies the transmitter
can be keyed only in the modes A3A, A3J, A3H, and TRANSMIT ALARM. On
wireless telegram frequencies the transmitter can be keyed only in the
modes Al, A2H, and Fl.
2.4 Operating Controls and their Functions
2.4.1 The SUPPLY switch has four positions
OFF Receiver and transmitter are switched off.
REGEIVE ONLY Power Pack is started up and supplies power to Receiver
(and grid bias to transmitter output valves). Remote
speaker of receiver is connected to receiver output.
STAND BY Power Pack supplies power to Receiver, Exciter, band
indicator, and filaments of transmitter output valves.
Remote speaker of receiver is connected to receiver
output.
TRANSMIT Transmitter can be keyed. Remote speaker of receiver is
disconnected.
NOTE:A built-in delay circuit protects the output valves of the
transmitter from being keyed for the first 30 sec. after switching to
STAND BY or TRANSMIT.
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