R.V.R. Elettronica TEX50LCD/S Manuale utente

Marca: R.V.R. Elettronica

Modello: TEX50LCD/S

Tipo: Manuale utente

TEX50LCD/STEX50LCD/S

USER MANUAL

VOLUME1

Manufactured by R.V.R ELETTRONICA S.r.l. Italy

Notification of intended purpose and limitations of product use

This product is a FM transmitter intended for FM audio broadcasting. It utili-

ses operating frequencies not harmonised in the intended countries of use.

The user must obtain a license before using the product in intended country

of use. Ensure respective country licensing requirements are complied with.

Limitations of use can apply in respect of operating freuency, transmitter

power and/or channel spacing.

Declaration of Conformity

Hereby, R.V.R. Elettronica, declares that this FM transmitter is in complian-

ce with the essential requirements and other relevant provisions of Directive

2014/53/EU.

TEX50LCD/S - User Manual

Version 2.2

R.V.R. Elettronica S.r.l.

Via del Fonditore 2/2c - 40138 - Bologna (Italia)

Telephone: +39 051 6010506

Fax: +39 051 6011104

Email: info@rvr.it

Web: www.rvr.it

Printed and bound in Italy. No part of this manual may be reproduced,

memorized or transmitted in any form or by any means, electronic

or mechanic, including photocopying, recording or by any informa-

tion storage and retrieval system, without written permission of the

File Name: TEX50LCD_ENG_2.2.indb

Version: 2.2

Date: 24/03/2023

Revision History

Date Version Reason Editor

02/09/2018 2.0 Second Version J. H. Berti

06/07/2020 2.1 Technical Specication Update J. H. Berti

24/03/2023 2.2 Options Upgrade J. H. Berti

TEX50LCD/S

ELETTRONICA

User Manual

Rev. 2.2 - 24/03/23

Technical Specications

TEX50LCD/S

Parameters U.M. Value Notes

Frequency range MHz 87.5 ÷ 108

Rated output power W50 Continuously variable by software from 0 to maximum

Modulation type F3E Direct carrier frequency

Operational Mode Mono, Stereo, Multiplex

Working temperature °C -5 to + 50

Working Humidity %95 (Without condensing)

Working Altitude mt 3000 With adequate air evacuation system in site

Frequency programmability From software, with 10 kHz steps

Frequency stability Working Temp. from -5°C to 50°C ppm ±1

Modulation capability kHz 150 Stereo, 180 Mono/MPX Meets or exceeds all FCC and CCIR rules

Pre-emphasis mode μS 0, 50 (CCIR), 75 (FCC) selectable by rear panel dip switches

Spurious & harmonic suppression dBc <75 (80 typical) Meets or exceeds all FCC and CCIR rules

Asynchronous AM S/N ratio Referred to 100% AM,

with no de-emphasis

dB ≥ 65 (typical 70)

Synchronous AM S/N ratio

Referred to 100% AM,

FM deviation 75 kHz by 400Hz sine,

without de-emphasis

dB ≥ 50 (typical 60)

RMS @ ± 75 kHz peak,

HPF 20Hz - LPF 23 kHz,

50 μS de-emphasis

dB > 80 (typical 85)

Qpk @ ± 75 kHz peak,

CCIR weighted,

50 μS de-emphasis

dB >73

Qpk @ ± 40 kHz peak,

CCIR weighted,

50 μS de-emphasis

dB >68

Frequency Response 30Hz ÷ 15kHz dB better than ± 0.5 dB (typical ± 0.2)

Total Harmonic Distortion THD+N 30Hz ÷ 15kHz %< 0.1 (Typical 0.07%)

Intermodulation distortion

Measured with a 1 KHz,

1.3 KHz tones,

1:1ratio, @ 75 kHz FM

%< 0.05

Transient intermodulation distortion

3.18 kHz square wave,

15 kHz sine wave

@75 kHz FM

%< 0.1 (typical 0.05)

Composite S/N FM Ratio

RMS @ ± 75 kHz peak,

HPF 20Hz - no LPF,

50 μS de-emphasis

dB > 80 (typical 85)

30Hz ÷ 53kHz dB ± 0.2

53kHz ÷ 100kHz dB ± 0.5

THD+N 30Hz ÷ 53kHz %< 0.1

THD+N 53kHz ÷ 100kHz %< 0.15

Intermodulation distortion

Measured with a 1 KHz,

1.3 KHz tones,

1:1ratio, @ 75 kHz FM

%< 0.05

Transient intermodulation distortion

3.18 kHz square wave,

15 kHz sine wave

@75 kHz FM

%< 0.1 (typical 0.05)

Stereo separation 30Hz ÷ 53kHz dB > 50 dB (typical 60)

RMS @ ± 75 kHz peak,

HPF 20Hz - LPF 23 kHz,

50 μS de-emphasis,

L & R demodulated

dB > 75 (78 typical)

Qpk @ ± 75 kHz peak,

CCIR weighted,

50 μS de-emphasis,

L & R demodulated

dB > 65 dB

Qpk @ ± 40 kHz peak,

CCIR weighted,

50 μS de-emphasis,

L & R demodulated

dB > 58 dB

Frequency Response 30Hz ÷ 15kHz dB ± 0.5

Total Harmonic Distortion THD+N 30Hz ÷ 15kHz %< 0.05

Intermodulation distortion

Measured with a 1 KHz,

1.3 KHz tones,

1:1ratio, @ 75 kHz FM

%≤ 0.03

Transient intermodulation distortion

3.18 kHz square wave,

15 kHz sine wave

@75 kHz FM

%< 0.1 (typical 0.05)

Stereo separation dB > 50 (typical 55)

Main / Sub Ratio 30Hz ÷ 15kHz dB > 40 (typical 45)

Frequency response 40kHz ÷ 100kHz dB ± 0.5

RMS, ref @ ± 75 kHz peak,

no HPF/LPF,

0μS de-emphasis,

with 67 kHz tone on SCA input

@ 7,5kHz FM deviation

dB > 75 (typical 78)

RMS, ref @ ± 75 kHz peak,

no HPF/LPF,

0μS de-emphasis,

with 92 kHz tone on SCA input

@ 7,5kHz FM deviation

dB > 78 (typical 80 )

AC Supply Voltage VAC 80 ÷ 260 (*) Internal switch (**) monophase (***) Threephases Y

AC Apparent Power Consumption VA 200

Active Power Consumption W100

Power Factor 0,5

Overall Efficiency %50

Connector VDE IEC Standard

DC Supply Voltage VDC 28

DC Current ADC 8,2 (**) (*)max 25W (**) max 140W

Front panel width mm 483 (19") 19" EIA rack

Front panel height mm 88 (3 1/2") 2HE convertire in pollici

Overall depth mm 394

Chassis depth mm 372 escluso il pannello, esclusi i connettori, convertire in pollici

Weight kg about 6,5

Cooling Forced, with internal fan

Acoustic Noise dBA < 58

STEREO OPERATION

Stereo S/N FM Ratio

SCA OPERATION

Crosstalk to main or to stereo channel

POWER REQUIREMENTS

AC Power Input

DC Power Input

MECHANICAL DIMENSIONS

Phisical Dimensions

VARIOUS

Total Harmonic Distortion

GENERALS

MONO OPERATION

S/N FM Ratio

MPX OPERATION

Frequency Response

ii User Manual

Rev. 2.2 - 24/03/23

TEX50LCD/S

ELETTRONICA

Connector XLR F

Type Balanced

Impedance Ohm 10 k or 600 Selectable by rear panel dip switches

Input Level /Adjust dBu -13 to +13 continuosly variable

Connector XLR F

Type Balanced

Impedance Ohm 10 k or 600 Selectable by rear panel dip switches

Input Level dBu -13 to +13 continuosly variable

Connector BNC

Type unbalanced

Impedance Ohm 10 k or 50 Selectable by rear panel dip switches

Input Level / Adjust dBu *-13 to +13 for 75 KHz FM, externally adjustable

Connector 2 x BNC

Type unbalanced

Impedance Ohm 10 k

Input Level / Adjust dBu *-8 to +13 for 7,5 KHz FM, externally adjustable

Connector XLR F

Type Balanced

Impedance Ohm 110

Input Level / Adjust dBfs 0 to -10 for 7,5 KHz FM, externally adjustable

Connector TOS-LINk

Type Optical

Connector N type

Impedance Ohm 50

Connector BNC

Impedance Ohm 50

Output Level dB approx. -30 Referred to the RF output

Connector BNC For RDS and isofrequency synchronizing purpose

Impedance Ohm >5 k

Output Level Vpp 1

Interlock Connector BNC Input and output for remote power inhibition (short is RF off)

Service Connector DB9 F Factory reserved for firmware program

Remote Interface Connector DB15F IIC + 5 analog / digital inputs, 5 analog / digital outputs

FUSES

On Mains 1 External fuse F 6,3 T - 5x20 mm

On services

On PA Supply

On Driver Supply

Input device 4 pushbutton

Display Alphanumerical LCD - 2 x 16

10 FWD fold For P.A. A.G.C. purpose, min 0,5 Vcc

2REF fold For P.A. A.G.C. purpose, min 0,5 Vcc

14 RF ON

15 RF OFF

Close to GND 1Interlock for remote power inhibition (short is RF off)

6FWD max 5 Vcc

13 REF max 5 Vcc

5VPA max 5 Vcc

12 IPA max 5 Vcc

Open Collector 7Power Good open collector

Remote connector inputs

Analogical level

Pulse to GND

Remote connector outputs Analogical level

TELEMETRY / TELECONTROL

Right

MPX

SCA/RDS

AES/EBU

(optional)

TOS/Link

(optional)

OUTPUTS

RF Output

RF Monitor

Pilot output

AUXILIARY CONNECTIONS

HUMAN INTERFACES

Left / Mono

AUDIO INPUTS

TEX50LCD/S

ELETTRONICA

iii

User Manual

Rev. 2.2 - 24/03/23

Table of Contents

1. Preliminary Instructions 1

2. Warranty 1

3. First Aid 2

3.1 Treatment of electrical shocks 2

3.2 Treatment of electrical Burns 2

4. General Description 3

4.1 Unpacking 3

4.2 Features 4

4.3 Frontal Panel Description 5

4.4 Rear Panel Description 6

4.5 Connectors Description 7

5. Installation and use 8

5.1 Installation 9

5.2 Operation 19

5.3 Management Firmware 21

5.4 Optional Function 27

6. Identication and Access to the Modules 29

6.1 Identication of the Modules 29

7. Working Principles 30

7.1 Panel board 30

7.2 Main board 30

7.3 Telemetry board 31

7.4 Power Supply 31

7.5 Power Amplier 31

7.6 Control Board 32

8. Maintenance and repair procedures 33

8.1 Introduction 33

8.2 Security Considerations 33

8.3 Ordinary maintenance 33

8.4 Module substitutions 34

9. Option 39

9.1 /AUDIGIN-TEX option 39

9.2 /RDS-TEX2HE & /RDS-TEX-E-2HE option 40

9.3 /TLC-TEX2HE option 41

9.4 /TLM-TEX-E-2HE option 42

9.5 /TLW-TEX-E-2HE option 43

9.6 /TLW-TEX2HE Option 44

9.7 /RTC-TEX option 45

9.8 /FW2 option (only software) 45

9.9 UP/DOWN Power option (only software) 45

iv User Manual

Rev. 2.2 - 24/03/23

TEX50LCD/S

ELETTRONICA

This page was intentionally left blank

TEX50LCD/S

ELETTRONICA

1 / 46

User Manual

Rev. 2.2 - 24/03/23

1. Preliminary Instructions

• General Warnings

This equipment should only be operated, installed and

maintained by “trained” or “qualied” personnel who are familiar

with risks involved in working on electric and electronic circuits.

“Trained” means personnel who have technical knowledge of

equipment operation and who are responsible for their own

safety and that of other unqualied personnel placed under

their supervision when working on the equipment.

“Qualified” means personnel who are trained in and

experienced with equipment operation and who are

responsible for their own safety and that of other unqualied

personnel placed under their supervision when working on

the equipment.

WARNING: Residual voltage may be present inside

the equipment even when the ON/OFF switch is set to

O. Before servicing the equipment, disconnect the

power cord or switch o the main power panel and

make sure the safety earth connection is connected.

Some service situations may require inspecting the

equipment with live circuits. Only trained and qualied

personnel may work on the equipment live and shall be

assisted by a trained person who shall keep ready to

disconnect power supply at need.

R.V.R. Elettronica shall not be liable for injury to persons or

damage to property resulting from improper use or operation

by trained/untrained and qualied/unqualied persons.

WARNING: The equipment is not water resistant.

Any water entering the enclosure might impair proper

operation. To prevent the risk of electrical shock or

re, do not expose this equipment to rain, dripping or

moisture.

Please observe local codes and re prevention rules when

installing and operating this equipment.

WARNING: This equipment contains exposed

live parts involving an electrical shock hazard. Always

disconnect power supply before removing any covers

or other parts of the equipment.

Ventilation slits and holes are provided to ensure reliable

operation and prevent overheating; do not obstruct or

cover these slits. Do not obstruct the ventilation slits under

any circumstances. The product must not be incorporated

in a rack unless adequate ventilation is provided or the

manufacturer’s instructions are followed closely.

WARNING: This equipment can radiate

radiofrequency energy and, if not installed in compliance

with manual instructions and applicable regulations,

may cause interference with radio communications.

WARNING: This equipment is tted with earth

connections both in the power cord and for the chassis.

Make sure both are properly connected.

Operation of this equipment in a residential area may cause

radio interference, in which case the user may be required

to take adequate measures.

The specications and data contained herein are provided

for information only and are subject to changes without

prior notice. R.V.R. Elettronica disclaims all warranties,

express or implied.While R.V.R. Elettronica. attempts to

provide accurate information, it cannot accept responsibility

or liability for any errors or inaccuracies in this manual,

including the products and the software described herein.

R.V.R. Elettronica reserves the right to make changes to

equipment design and/or specications and to this manual

at any time without prior notice.

• Notice concerning product intended purpose and use

limitations.

This product is a radio transmitter suitable for frequency-

modulation audio radio broadcasting. Its operating

frequencies are not harmonised in designated user countries.

Before operating this equipment, user must

obtain a licence to use radio spectrum from the

competent authority in the designated user country.

Operating frequency, transmitter power and other

characteristics of the transmission system are subject to

restrictions as specied in the licence.

2. Warranty

La R.V.R. Elettronica warrants this product to be free from

defects in workmanship and its proper operation subject to

the limitations set forth in the supplied Terms and Conditions.

Please read the Terms and Conditions carefully, as purchase

of the product or acceptance of the order acknowledgement

imply acceptance of the Terms and Conditions.

For the latest updated terms and conditions, please visit our web

site at WWW.RVR.IT. The web site may be modied, removed

or updated for any reason whatsoever without prior notice.

The warranty will become null and void in the event the

product enclosure is opened, the product is physically

damaged, is repaired by unauthorised persons or is used for

purposes other than its intended use, as well as in the event

of improper use, unauthorised changes or neglect.

In the event a defect is found, follow this procedure:

1 Contact the seller or distributor who sold the equipment;

provide a description of the problem or malfunction for

the event a quick x is available.

Sellers and Distributors can provide the necessary

information to troubleshoot the most frequently encountered

problems. Normally, Sellers and Distributors can oer a

faster repair service than the Manufacturer would. Please

note that Sellers can pinpoint problems due to wrong

installation.

2 If your Seller cannot help you, contact R.V.R.

Elettronica. and describe the problem; if our sta deems

it appropriate, you will receive an authorisation to return

the equipment along with suitable instructions;

3 When you have received the authorisation, you may

return the unit. Pack the unit carefully before shipment;

use the original packaging whenever possible and seal

the package perfectly. The customer bears all risks of

loss (i.e., R.V.R. shall not be liable for loss or damage)

until the package reaches the R.V.R. factory. For this

reason, we recommend insuring the goods for their full

value. Returns must be sent on a C.I.F. basis (PREPAID)

to the address stated on the authorisation as specied

by the R.V.R. Service Manager.

IMPORTANT

The symbol of lightning inside a triangle placed on the product, evidences the operations for

which is necessary gave it full attention to avoid risk of electric shocks.

The symbol of exclamation mark inside a triangle placed on the product, informs the user

about the presence of instructions inside the manual that accompanies the equipment, im-

portant for the ecacy and the maintenance (repairs).

2 / 46 User Manual

Rev. 2.2 - 24/03/23

TEX50LCD/S

ELETTRONICA

Units returned without a return authorisation may

be rejected and sent back to the sender.

4 Be sure to include a detailed report mentioning all

problems you have found and copy of your original

invoice (to show when the warranty period began) with

the shipment.

Please send spare and warranty replacement parts orders to

the address provided below. Make sure to specify equipment

model and serial number, as well as part description and

quantity.

R.V.R. Elettronica

Via del Fonditore, 2/2c

40138 BOLOGNA ITALY

Tel. +39 051 6010506

3. First Aid

All personnel engaged in equipment installation, operation

and maintenance must be familiar with rst aid procedures

and routines.

3.1 Electric shock treatment

3.1.1 If the victim is unconscious

Follow the rst aid procedures outlined below.

• Lay the victim down on his/her back on a rm

surface.

• the neck and tilt the head backwards to free

the airway system (Figure 1).

Figure 1

• If needed, open the victim’s mouth and check

for breathing.

• If there is no breathing, start articial respiration

without delay (Figure 2) as follows: tilt the head

backwards, pinch the nostrils, seal your mouth

around the victim’s mouth and give four fast

rescue breaths.

Figure 2

• Check for heartbeat (Figure 3); if there is

no heartbeat, begin chest compressions

immediately (Figure 4) placing your hands in

the centre of the victim’s chest (Figure 5).

Figure 3 Figure 4 Figure 5

• One rescuer: give 2 quick rescue breaths after

each 15 compressions.

• Two rescuers: one rescue breath after each 5

compressions.

• Do not stop chest compressions while giving

articial breathing.

• Call for medical help as soon as possible.

3.1.2 If the victim is conscious

• Cover victim with a blanket.

• Try to reassure the victim.

• Loosen the victim’s clothing and have him/her

lie down.

• Call for medical help as soon as possible.

3.2 Treatment of electric burns

3.2.1 Large burns and broken skin

• Cover affected area with a clean cloth or

linen.

• Do not break any blisters that have formed;

remove any clothing or fabric that is stuck to

the skin; apply adequate ointment.

• Administer adequate treatment for the type of

accident.

• Get the victim to a hospital as quickly as

possible.

• Elevate arms and legs if injured.

If medical help is not available within an hour, the victim is

conscious and is not retching, administer a solution of table

salt and baking soda (one teaspoon of table salt to half

teaspoon of baking soda every 250 ml of water).

Have the victim slowly drink half a glass of solution for four

times during a period of 15 minutes.

Stop at the rst sign of retching.

Do not administer alcoholic beverages.

3.2.2 Minor burns

• Apply cold (not ice cold) strips of gauze or dress

wound with clean cloth.

• Do not break any blisters that have formed;

remove any clothing or fabric that is stuck to

the skin; apply adequate ointment.

• If needed, have the victim change into clean,

dry clothing.

• Administer adequate treatment for the type of

accident.

• Get the victim to a hospital as quickly as

possible.

• Elevate arms and legs if injured.

TEX50LCD/S

ELETTRONICA

3 / 46

User Manual

Rev. 2.2 - 24/03/23

4. General Description

The TEX50LCD/S, manufactured by R.V.R. Elettronica, is an exciter for

Frequency Modulated audio broadcasting in a frequency modulation able to

transmit in the band between 87.5 and 108 MHz, in step of 10 KHz, with an RF

output power adjustable up to a maximum of 50 W into a 50 Ohm standard load.

The unit is factory aligned and calibrated at the time of manufacture. Because of

this manufacture process, there is no eld tune-up or alignment necessary.

Factory tolerances are:

- Maximum Output Rated Power: 47 dBm ±1 dB

- Minimum Output Rated Power: 37 dBm ±1 dB

- Gain: Not Applicable (the equipment is supplied without a radiant system, that

shall be borne by the customer).

The TEX50LCD/S are designed to being contained into a 19” rack box of 2HE.

4.1 Unpacking

The package contains:

1 TEX50LCD/S

1 User Manual

1 Mains power cables

The following accessories are also available from Your R.V.R. Dealer:

• Options for the equipment:

/AUDIGIN-

TEX

/RDS-

TEX2HE

/RDS-

TEX-E-

2HE

/TLC-

TEX2HE

/TLM-

TEX2HE

/TLW-

TEX2HE

/TLW-

TEX-E-

2HE

/RTC-

TEX

/FW2

/AUDIGIN-TEX

●

/RDS-TEX2HE

●

/RDS-TEX-E-2HE

●

/TLC-TEX2HE

●

/TLM-TEX2HE

●

/TLW-TEX2HE

●

/TLW-TEX-E-2HE

●

/RTC-TEX

●

/FW2

●

●: compatible option / ○: option already included / x : not compatible option

Table 4.1: table of compatibility of the various options

• Spare parts

• Cables

4 / 46 User Manual

Rev. 2.2 - 24/03/23

TEX50LCD/S

ELETTRONICA

4.2 Features

This exciter contain a low-pass lter that reduces the harmonic emission to provided

for by international standards (CCIR, FCC or ETSI) and can be connected directly

to the antenna.

Two major features of TEX50LCD/S are compact design and user-friendliness.

Design is based on a modular concept: the dierent functions are performed

by modules that, for the most part, are connected through male and facilitates

maintenance and module replacement.

The RF power section of the TEX50LCD/S features a MOSFET module delivering

up to 50W output power.

Operating frequency stability is ensured by a temperature-compensated reference

oscillator and is maintained by a PLL (Phase Locked Loop) system. The exciter

will go into frequency lock within 30 seconds after power-on.

The TEX50LCD/S can operate throughout the frequency bank with no need for

calibration or set-up.

An LCD on the front panel and a push-button board provide for user interfacing

with the microprocessor control system, which oers the following features:

• Output power setup.

• Operating frequency setup.

• Power output enable/disable.

• Power Good feature (User-selectable output power alarm threshold).

• Measurement and display of transmitter operating parameters.

• Communication with external devices such as programming or telemetry

systems via RS232 serial interface or I2C.

Four LEDs on the front panel provide the following status indications: ON, LOCK,

FOLDBACK and RF MUTE.

The exciter have an input for the external 24 Vcc supply. This auxiliary supply

source, that can be realized by the user with the help of rescue batteries, is

automatically used in case of AC voltage absence.

The exciter management rmware is based on a menu system. User has four

navigation buttons available to browse submenus: ESC , , , ed ENTER.

TEX50LCD/S

ELETTRONICA

5 / 46

User Manual

Rev. 2.2 - 24/03/23

The rear panel features the mains input connectors, as well as audio input

connectors and RF output connector, telemetry connector, protection fuses and

two inputs for signals modulated onto subcarriers by suitable external coders, such

as RDS (Radio Data System) signals commonly used in Europe.

4.3 Frontal Panel Description





®  ®®

  

  



� «

   

z 

�o

w 

   

 □

« 

   

   



®®®

    

 





  



  



□





-L









  

  



 

  

 

  

® ®



 

1 2

[1] AIR FLOW Air ow for the forced ventilation.

[2] ON Green LED, lit when the exciter is working.

[3] LOCK Green led, lit when the PLL is locked on the working frequency.

[4] FOLDBACK Yellow LED, lit when the foldback function is operating (automatic

reduction of the delivered RF power).

[5] R.F. MUTE Yellow LED, lit when the exciter’s power output is inhibited by an

external interlock command.

[6] CONTRAST Display contrast adjusting trimmer (on the top of the equipment).

[7] ESC Push button to exit from a menu.

[8] Push button to move in the menu system and to modify the

parameters.

[9] Push button to move in the menu system and to modify the

parameters.

[10] ENTER Push button to conrm a parameter and to enter in a menu.

[11] DISPLAY Liquid crystals display.

[12] POWER ON/OFF switch.

6 / 46 User Manual

Rev. 2.2 - 24/03/23

TEX50LCD/S

ELETTRONICA

4.4 Rear Panel Description

[1] PLUG VDE plug for mains supply.

[2] FAN Fan for the forced ventilation of the exciter.

[3] R.F. OUTPUT RF output connector, N-type, 50Ω.

[4] PHASE ADJ Phase adjustment trimmer.

[5] PILOT LVL Pilot tone adjustment trimmer.

[6] MODE/MPX IMP Dip-switch to set the operation mode (STEREO or MONO)

and the MPX input impedance, 50Ω or 10kΩ.

[7] SCA 1/RDS BNC connector, SCA 1/RDS unbalanced input.

[8] MPX BNC connector, MPX unbalanced input.

[9] MPX ADJ Adjustment trimmer for MPX input.

[10] SCA 1/RDS ADJ Adjustment trimmer for SCA 1/RDS input.

[11] RIGHT ADJ Adjustment trimmer for the Right channel input.

[12] RIGHT XLR connector, balanced Right channel input.

[13] TOSLINK Not used.

[14] ADJ R Not used.

[15] ADJ L Not used.

[16] SLOT Not used.

[17] SERVICE/RDS DB9 connector for interconnection with other devices and for

factory parameters programming.

[18] 24VDC IN Not used.

[19] FUSE BLOCK Fuse carrier.Use a screwdriver to access the fuse.

[20] R.F. TEST POINT RF test output, approx. 20 dBm wrt the RF output power

level.

[21] CARRIER FREQ. ADJ Fine adjustment trimmer for the carrier frequency.

[22] PREEMPHASIS Dip-switch to set the preemphasis at 50 or 75 μs. The

preemphasis setting is relevant only for the Left and Right

inputs in stereo mode and for the mono input in mono mode,

while MPX input is unaected by this setting.

[23] 19KHZ PILOT OUT BNC output for the 19 kHz pilot tone. This can be used for

external devices (e.g. RDS coders) synchronization.

[24] SCA 2 BNC connector, SCA2 unbalanced input.

[25] SCA2 ADJ Adjustment trimmer for SCA2 input.

[26] LEFT/MONO ADJ Adjustment trimmer for LEFT/MONO channel input.

[27] LEFT/MONO XLR connector, balanced LEFT/MONO channel input.

[28] IMPEDANCE Dip-switch to set the balanced input impedance, 600Ω or

10kΩ.

[29] AES/EBU Not used.

[30] INTERLOCK IN Interlock input BNC connector: the transmitter is forced in

stand-by mode by grounding the central conductor.

TEX50LCD/S

ELETTRONICA

7 / 46

User Manual

Rev. 2.2 - 24/03/23

[31] RFL EXT. AGC Trimmer for automatic gain control based on external signal

of reected power.

[32] FWD EXT. AGC Trimmer for automatic gain control based on external signal

of forward power.

[33] RS232 Not used.

[34] REMOTE DB15 connector for telemetry of the machine.

[35] MODEM Non used.

4.5 Connectors Description

4.5.1 Left (MONO) / Right

Type: Female XLR

1 GND

2 Positive

3 Negative

4.5.2 Remote

Type: Female DB15

Pin Name Type Meaning

1 Interlock IN By passes power if closed at GND

2 Ext AGC FWD IN Ext. signal,1-12V, for power

limitation (AGC)

3 GND Ground

4 SDA IIC I/O IIC communication serial data

5 VPA Tlm ANL OUT PA power supply voltage 3,9V F.S.

6 FWD Tlm ANL OUT Forward power 3,9V F.S.

7 Power Good DIG OUT Open collector, enabled whenpower

exceeds the set threshold

8 GND Ground

9 GND Ground

10 Ext AGC RFL IN Ext. signal.,1-12V, for power

limitation (AGC)

11 SCL IIC I/O IIC communication clock

12 IPA Tlm ANL OUT PA power supply current 3,9V F.S.

13 RFL Tlm ANL OUT Reected power 3,9V F.S.

14 On cmd DIG IN One grounded pulse (500 ms)

enables power supply

15 OFF cmd DIG IN One grounded pulse (500 ms)

disables power supply.

8 / 46 User Manual

Rev. 2.2 - 24/03/23

TEX50LCD/S

ELETTRONICA

5. Installation and use

This section provides a step-by-step description of equipment installation and

conguration procedure. Follow these procedures closely upon rst power-on

and each time any change is made to general conguration, such as when a new

transmission station is added or the equipment is replaced.

IMPORTANT: always remove the mains voltage before carrying out any type of

installation and/or maintenance. It is essential to interrupt the power supply to

avoid the risk of electric shock which could cause material damage to people or

property, serious injuries and even death.

The equipment must only be installed by qualied personnel.

With qualied personnel, it identies personnel who respond to all directives, laws

and regulations concerning safety, applicable to installation and operation of this

device.

The choice of qualied, and appropriately trained, personnel is always under

responsibility of the company in which this personnel is a part, because is the

company in question that determines whether a worker is suitable for a particular

job, in order to protect its safety by respecting the applicable law on workplace

safety matter.

These companies must provide appropriate training to their sta on electrical

devices, and make sure that they familiarize themselves with the contents of this

manual.

The respect of the safety instructions set, forth in this manual or in the specied

legislation, does not exempt you from compliance with other specic regulations

regarding installation, place, Country or other circumstances affecting the

equipment.

IMPORTANT: there is a possible danger due electric shock, therefore it is mandatory

to comply with the applicable law on safety with regard to electrical aspects.

Once the desired conguration has been set up, no more settings are required

for normal operation; at each power-up (even after an accidental shutdown),

the equipment defaults to the parameters set during the initial conguration

procedure.

The topics covered in this section are discussed at greater length in the next

sections, with detailed descriptions of all hardware and rmware features and

capabilities. Please see the relevant sections for additional detail.

IMPORTANT: When conguring and testing the transmitter in which the equipment

is integrated, be sure to have the Final Test Table supplied with the equipment ready

at hand throughout the whole procedure; the Final Test Table lists all operating

parameters as set and tested at the factory.

TEX50LCD/S

ELETTRONICA

9 / 46

User Manual

Rev. 2.2 - 24/03/23

5.1 Preparation

5.1.1 Preliminary Requirements

The equiment ventilation and the work space must be suitable for maintenance

operations according to the directive in force in the country in which this device

is installed.

It is necessary to leave a minimum distance of 50 cm on the front and back sides

of the device to have a proper functioning and to facilitate air circulation through

the ventilation grids.

In any case, the device must respect the distance established by the safety directive

in force in the country where this equipment is installed.

This device is designed to operate at -10 °C to 45 °C without loss of performance.

The ambient air must be clean of dust and not condensed; the maximum humidity

must never exceed 95%.

It is important to remember that strong changes in temperature can lead to

generation of condensation, in particular environmental conditions. In case of the

station where this device is located should be subjected to these physical events,

it is good to monitor these devices, once you put it into service, in addition to trying

to protect the device itself as much as possible.

IMPORTANT: never supply voltage to the equipment in presence of condensation.

This problem can occur more frequently in devices warehoused for a long time or

in those used as an active reserve.

The antenna RF, power supply and connection cables must have the section

suitable for the maximum current intensity.

5.1.2 Preliminary checks

Unpack the transmitter and immediately inspect it for transport damage. Check

carefully that all the connectors are in perfect condition and check for the absence

of humidithy. Otherwise, wait until it is completely dry.

In case of problems in this step, immediately contact after-sales assistance.

The mains power supply protection fuses are conveniently located externally on

rear panel. Remove the fuse holder with a screwdriver to check its integrity or to

replace it if necessary. The following fuse are used:

10 / 46 User Manual

Rev. 2.2 - 24/03/23

TEX50LCD/S

ELETTRONICA

TEX50LCD/S

@ 90÷260 Vac

Mains fuses (1x) 3.15A tipo 5x20

Table 5.1: Fuses

5.1.3 Placement of equipment

Useful tips for a correct installation:

• Do not use in presence of external elements near inlets and outlets ventilation

systems, as they could prevent a proper ventilation of the device.

• Do not place near any source of heat or ammable gas.

• Avoid places subject to accumulation of humidity, dust, sand, salt or environments

that could compromise the correct operation of the equipment.

• Avoid installing the equipment into inhabited places due to possible noise

pollution or on fragile supports. The operation of the equipment can cause a

noise due to forced ventilation. The mounting surface must be able to withstand

the weight of the device and must be sturdy.

Note: below we will refer to a complete station, where the device can be a part of

it. The same procedures also apply in case of the device is used individually.

The device is usually connected inside a 19 “rack and xed with M5 screws in the

appropriate holes.

The equipment must be installed at least 1 mt from the ground.

Install the rack in the point in which the transmitter will be put in operation. The

rack is mounted on wheels for easy movement so that, once placed in the desired

location, it is advisable to use the four screws located at the base of the rack to

stabilize it perpendicularly to ground.

The environment, where you have decided to install the rack, should be set up

for about 25°C of air conditioning and equipped with a lter to remove dust and

salt air.

TEX50LCD/S

ELETTRONICA

11 / 46

User Manual

Rev. 2.2 - 24/03/23

The transmitter normally have the outlet air in the back of machine.

In this case, provide adequate ventilation of the room.

COLD

HOT

50cm

In alternative is cooled by forced ventilation and the air outlet is located on the roof

of machine. Is recommended a length of tube approximetively of 1,5 meter.

COLD

HOT

50cm

12 / 46 User Manual

Rev. 2.2 - 24/03/23

TEX50LCD/S

ELETTRONICA

Is highly recommended to install the rack at least 50 cm from the rear and side

wall so as to allow an optimum air ow and to facilitate workers.

50cm

COLD

HOT

5.1.3.1 Rack power supply connections

Provide for the following (applicable to operating tests and putting into service):

√ Mains power supply full range 80 ÷ 260 VAC full-range for TEX50LCD/S, both

with adequate earth connection.

√ For operating tests only: dummy load with 50 Ohm impedance and adequate

capacity (50W as a minimum for TEX50LCD/S).

Connect the overall power cord of machine. The cable can be slid through the

cable gland located on the back, or on the roof, of the machine and conductors

must be attached to the general disconnecting switch terminals.

Note: The connection of machine to power supply is done by xing a multi-pole

cable with exposed terminals to a terminal board. Make sure, with no possibility

of error, that the cable is not under tension when you connect it to the machine.

WARNING: Is highly recommended to don’t turn on the machine without rst

having connected the RF output to antenna or dummy load!

If you have a dummy load capable to dissipate the RF power generated by the

transmitter, it is advisable to carry out rst tests by linking to it rather than to the

transmission antenna.

If transmitter require a single-phase power with F (black or brown or grey) + N

(blue) + GND (green yellow), keep in mind this requirement to connect to your

distribution board.

TEX50LCD/S

ELETTRONICA

13 / 46

User Manual

Rev. 2.2 - 24/03/23

If transmitter require three-phase power with 3F (black, brown and grey) + N

(blue) + GND (green yellow), keep in mind this requirement to connect to your

distribution board.

Note: the mains must be equipped with adequate earth connection properly

connected to the equipment. This is a pre-requisite for ensuring operator safety

and correct operation.

The following table shows the recommended cable cross-sections:

CONNECTOR

THREE-PHASE

CABLE SECTION

SINGLE-PHASE

CABLE SECTION

L/ Ø 6mm

RØ 4mm /

SØ 4mm /

TØ 4mm /

NØ 4mm Ø 6mm

PE Ø 4mm Ø 6mm

Tipically the distribution board contains the thermal-magnetic circuit breakers for

each amplier included in the system and one for service.

14 / 46 User Manual

Rev. 2.2 - 24/03/23

TEX50LCD/S

ELETTRONICA

WARNING: Electric shock hazard! Never handle the RF output connector

when the equipment is powered on and no load is connected. Injury or death

may result.

Ensure that the distribution board of the transmitter is set to “OFF”.

5.1.4 Device power supply connections

Provide for the following (applicable to operating tests and putting into service):

√ Mains power supply full range 80 ÷ 260 VAC full-range for TEX50LCD/S, both

with adequate earth connection.

√ For operating tests only: dummy load with 50 Ohm impedance and adequate

capacity (50W as a minimum for TEX50LCD/S).

Note: to ensure the safety of the operators, carry out the wiring according to the

laws and regulations in force in the country where this equipment is installed.

Check that the POWER switch on the front of TEX50LCD/S is in the “OFF”

position.

The transmitter has two switches: one is embedded in VDE socket for mains power

cord and interrupts all mains power supply of the machine, while the second is on

the front panel and acts by inhibiting the switching power supply of the machine.

Connect the mains power cable to the MAINS connector on the rear panel.

Warning: Be sure to connect the equipment correctly, to avoid the risk of

damaging. It is necessary connect the ground conductor of the power supply

cable to the specic terminal in the multipole socket and check the eciency of

your own grounding system.

The control and RF connection diagram, between the amplier and its exciter,

and the connection with the load are represented in gure 5.1.

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