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Converter-driver

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Converter-driver

    TRP 5000

    INSTRUCTION MANUAL

    CONTENTS

     Page

    1. INTRODUCTION 1 - 1

    2. OPERATING INSTRUCTIONS 2 1

    2 1 2.1 Distress Operation on 2182 kHz

    2 1 2.2 Tuning to 2182 kHz

    2 2 2.3 Tuning to a Frequency Other than 2182 kHz 2 2 2.4 Operating Controls and their Functions 2 2 2.5 Filter Cleaning 2 5

    3. INSTALLATION 3 1

    3.1 Types of Installations 3 1 3.2 Removal of Units 3 1 3.3 Mounting the Cabinet 3 1 3.4 Connection to the Permanent Installation 3 1 3.5 Earth Connections 3 2 3.6 Antennas 3 3 3.7 Remote Speaker 3 5 3.8 Transmitter-on Indication 3 5 3.9 Replacement of Power Pack 3 5 3.10 Optional Terminal Strips 3 5 3.11 Programming of MEMOFIY /238\ , General 3 7 3.12 Ordering Programmed PROM’s 3 8 3.13 Instruction for use of PROGRAMMING IINIT /241\ 3 3.14 Adjustment of Antenna Tuning 14

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    17

    4. TECHNICAL DATA 4 1

    5. TECHNICAL DESCRIPTION 5 1

    5.1 Mechanical 5 1 5.2 Circuit Description General 5 1 5.3 Circuit Summary, Exciter E 5000 5 2 5.4 Circuit Description, Exciter E 5000 5 3 5.5 Circuit Summary, Transmitter Power Amplifier T 5000 5 5.6 Circuit Description, Transmitter Power Amplifier T 5000 10 5.7 Circuit Summary, 24 V DO Power Pack P 5000 5 5.8 Circuit Description, 24 V DC Power Pack P 5000 10 5.9 Circuit Summary, AC Power Pack P5001 5 5.10 Circuit Description, AC Power Pack P 5001 11

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    5

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    TRP 5000

    INSTRUCTION MANUAL

    CONTENTS

     Page 6. SIMPLE SERVICE 6 - 1

    6 - 1 6.1 Incorrect Operation

    6 1 6.2 Battery

    6 1 6.3 Checking the Antenna Tuning 6 1 6.4 Using the CHECK SWITCH 6 - 2 6.5 Replacement of Fuses

    7. REPAIR AND ALIGNMENT 7 - 1

    7.1 Introduction 7 - 1 7.2 Cross Slot Screws 7 - 1 7.3 Locating Sub-units and Components 7 - 1 7.4 Locating Faults 7 - 1 7.5 Test Points 7 - 1 7.6 AC Voltages 7 - 1 7.7 DC Voltages 7 2 7.8 Replacement of Valves 7 2 7.9 Adjustments 7 3 7.10 /232\ Realignment of 1.4 MHz EXCITER 7 4 7.11 /233\ Realignment of RF TRANSLATOFT 7 5

    7.12 /234\ Realignment of CONTROL CIRCUIT AND TONE 7 8

    GENERATORS 7.13 /235\ Realignment of HARMONIC GENERATOR 7 9 7.14 /236\ Realignment of VCO 7 10 7.15 /240\ Realignment of MASTER OSCILLATOR 7 10 7.16 /251\ Realignment of DRIVER 7 10 7.17 /254\ Realignment of VOLTAGE REGULATORS 7 10

    8. PARTS LISTS AND CIRCUIT DIAGRAMS 8 - 1

     8.1 Numbering 8 - 1 8.2 Switches 8 - 1 8.3 Terminals 8 - 1 8.4 Voltages 8 - 1 8.5 Test Points 8 - 2 8.6 Symbol Explanation 8 - 2 8.7 Abbreviations 8 - 5 8.8 Parts Lists 8 - 60 8.8 Block diagram, Exciter E 5000

    LIST OF ILLUSTRATIONS

     Page Front panel and operating controls 1-2 PROM-types which can be installed in the MEMORY /238\ 3-6 Drilling plan for mounting of TRP 5000 3-20 TRP 5000 cabinet, standard version 3-21 TRP 5000 cabinet, optional terminal strips installed 3-22 Terminal Strip A 3-23 Terminal Strip B 3-24 Terminal Strip C 3-25 Terminal Strip D 3-26 Installation of external antenna relay 3-27 Initial tab settings, Lower GT band 3-28 Initial tab settings, Upper CT band 3-29 Initial tab settings, 4-6 MHz bands 3-30 Initial tab settings, 8-16 MHz bands 3-31 Initial tab settings, 22-25 MHz bands 3-32 T 5000 Tuning Chart 3-33 Programming Work Sheet 3-34 Function table for 234IC5 7-11 Function table for 235IC4 7-12 Location of circuit boards, E 5000 8-56 Location of circuit boards, T 5000 8-57 Location of circuit boards, P 5000 8-58 Location of circuit boards, P 5001 8-59

    LIST OF DIAGRAMS

     Page Block Diagram, Exciter E 5000 8-60 Block Diagram, Transmitter Power Amplifier, T 5000 8-61 Block Diagram, 24 V DC Power Pack, P 5000 8-62 Block Diagram, AC Power Pack, P 5001 8-63 Keying circuit, simplified diagram, 24 V DC 8-64 Keying circuit, simplified diagram, AC 8-65 /230\ E 5000 Wiring Diagram, /231\ Motherboard 8-67 /232\ 1.4 MHz Exciter 8-69 /233\ RF Translator 8-71 /234\ Control Circuit and Tone Generators 8-73 /235\ Harmonic Generator 8-75 /236\ VCO 8-77 /237\ Frequency Dividers 8-79 /238\ Memory 8-81 /239\ Display and Keyboard 8-83 /240\ Master Oscillator 8-85 /241 \Programming Unit 8-87 /250\ T 5000 Wiring diagram 8-89 /251\ Driver 8-91 1252\ Meter Circuit 8-93 1253\ Band indicator 8-95 /254\ Voltage Regulators 8-97 /260\ P 5000 24 V DC Power Pack Wiring Diagram 8-99 /261\ Converter-driver, LT-rectifiers and Stabilisers 8-101 /262\ HT-rectifiers and Base Keying Circuit 8-103 /262\ Driver and Grid Voltage Stabilisers 8-105 /264\ input Voltage Sensor 8-107 /265\ P 5001 AC Power Pack Wiring Diagram 8-109 /266\ LT-stabilisers 8-111 /267\ HT-rectifiers 8-113 /268\ Driver and Grid Voltage Stabilisers 8-115 TRP 5000 Cabinet Wiring 8-116 Terminal Strip A 8-117

    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.

    1 - 1

1 - 2

    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.

    2 - 1

    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.

    2 - 2

    2.4.2. The POWER switch has six positions

    LOW POWER Transmitter is keyed from handset key, morse key, or SIMPLEX telex equipment dependent on mode of operation. Receiver

    is muted while transmitting.

    Transmitter can be driven to approx. 1/20 Of full output

    power.

    MEDIUM POWER As above, but transmitter can be driven to approx. 1/4 SIMPLEX of full output power.

FULL POWER As above, but transmitter can be driven to full power.

    SIMPLEX

    FULL POWER Transmitter is keyed constantly in the Fl, A3A, A3J, A3H DUPLEX and TRANSMIT ALARM modes (provided the selected

    frequency is in accordance with the mode setting).

    Receiver is on but built-in speaker is disconnected.

    In the A2H and Al modes the operation is simplex

    independent of the setting of the POWER switch.

    Transmitter can be driven to full output power.

MEDIUM POWER As above, but transmitter can be driven to approx. 1/4

    DUPLEX of full output power.

    LOW POWER As above, but transmitter can be driven to approx. 1/20 DUPLEX of full output power.

NOTE: With the BAND switch set to 2182 kHz, simplex is automatically selected,

    independent of the POWER switch setting, and if at the same time the MODE switch

    is set to TRANSMITALARM, the transmitter is automatically set to full power.

The MODE switch has eight positions

    A2H Transmission of modulated radiotelegraphy. Only the

    morse key input is open. The transmitter can only be

    keyed if a telegraphy frequency is selected.

    Al Transmission of un-modulated radiotelegraphy. Only the

    morse key input is open. The transmitter can only be

    keyed if a telegraphy frequency is selected.

    F1 Transmission of telex. Only the telex inputs are open.

    Trans- mission is only possible if a telegraphy

    frequency is selected.

    TEST ALARM The built-in two tone alarm generator is connected to

    the receiver AF amplifier. Transmitter cannot be

    keyed.

    A3A Transmission of single-side band signal with reduced

    carrier. Transmission is only possible if a radio

    telephony frequency is selected. The transmitter can

    be keyed from the hand set key or by setting the POWER

    switch to DUPLEX.

    A3J As above, but carrier suppressed

    A3H As above, but full carrier.

    TRANSMIT ALARM The two-tone alarm generator is connected to the

    receiver AF amplifier and the alarm generator is ready

    for transmission of an alarm signal. The mode is A3H

    as above.

    2 - 3

    2.4.4 The ALARM START push-button is used to start the alarm generator after

    the MODE switch has been turned to the TRANSMIT ALARM position. The push-

    button is depressed and released and the alarm signal will be transmitted

    for approx. 45 seconds.

    The push-button is also used for starting the alarm generator in the TEST

    ALARM position.

    2.4.5 The KEYBOARD is used for frequency selection. It controls the frequency

    memory. The programmed frequencies are listed in the frequency chart.

    Each frequency is supplied with a number and this number is keyed into

    the keyboard. The frequency number selected is displayed on the FREQUENCY

    NO display.

    The display is cleared by using the C-key, which resets the display to

    zero.

    The display extinguishes when the BAND switch is set to 2182 kHz, but

    keyboard entry is still possible and the display will show the selected

    Frequency No. when the BAND switch is turned away from 2182 kHz.

    If an un-programmed Frequency No is selected, the display will start to

    flash, indicating that transmission is not possible.

    2.4.6 The DIMMER controls the intensity of the FREQUENCY NO display.

    2.4.7 The TUNING control is used for tuning the antenna circuit to maximum

    antenna current indicated on the ANTENNA CURRENT meter.

    2.4.8 The BAND switch has 16 positions:

    2182 kHz The FREQUENCY NO display is extinguished and the band-

    indicator lamp shows constant light indicating that 2182 kHz is

    selected. The range of the TUNING control is reduced. The A3H,

    simplex mode is automatically selected.

    Bands A to H cover the coastal telephone band 1.6 to 4 MHz.

    The 4 MHz, 6 MHz, 8 MHz, 12 MHz, 16 MHz, 22 MHz, and 25 MHz positions

    cover the maritime short-wave bands.

    A band indicator lamp at each position shows by flashing light where to

    set the BAND switch in accordance with the Frequency No selected. The

    light will extinguish when the BAND switch is set at the correct position.

    2.4.9 The TUNE push-button is used when tuning the antenna circuit. The

    transmitter is keyed and a tune signal is generated. During tuning, the

    receiver is muted.

    2 4

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