TEX502LCD USER MANUAL VOLUME1 Manufactured by R.V.
File Name: TEX502LCD_ENG_2.0.indb Version: 2.0 Date: 26/06/2019 Revision History Date Version 26/06/2019 2.0 Reason Second Version Editor J. H. Berti TEX502LCD - User Manual Version 2.0 © Copyright 2019 R.V.R. Elettronica Via del Fonditore 2/2c - 40138 - Bologna (Italia) Telephone: +39 051 6010506 Fax: +39 051 6011104 Email: info@rvr.it Web: www.rvr.it All rights reserved Printed and bound in Italy.
TEX502LCD Technical Specifications TEX502LCD Parameters U.M. Value Frequency range Rated output power Modulation type Operational Mode Ambient working temperature Ambient Working Humidity Frequency programmability Frequency stability Modulation capability Pre-emphasis mode Spurious & harmonic suppression MHz W ppm kHz μS dBc 87.
TEX502LCD AUDIO INPUTS Left / Mono Right MPX SCA/RDS AES/EBU (optional) TOS/Link (optional) Connector Type Impedance Input Level /Adjust Connector Type Impedance Input Level Connector Type Impedance Input Level / Adjust Connector Type Impedance Input Level / Adjust Connector Type Impedance Input Level / Adjust Connector Type Ohm dBu Ohm dBu Ohm dBu Ohm dBu Ohm dBfs XLR F Balanced 10 k or 600 -13 to +13 XLR F Balanced 10 k or 600 -13 to +13 BNC unbalanced 10 k or 50 *-13 to +13 2 x BNC unbalanced
TEX502LCD Table of Contents 1. 2. 3. 3.1 3.2 4. 4.1 4.2 4.3 4.4 4.5 5. 5.1 5.2 5.3 5.4 6. 6.1 6.2 7. 7.1 7.2 7.3 7.4 7.5 7.6 8. 8.1 8.2 8.3 9. 9.
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TEX502LCD ELETTRONICA 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, important for the efficacy and the maintenance (repairs). 1.
TEX502LCD 4 ELETTRONICA Units returned without a return authorisation may be rejected and sent back to the sender. • 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. Do not stop chest compressions while giving artificial breathing. • Call for medical help as soon as possible. 3.1.2 Please send spare and warranty replacement parts orders to the address provided below.
TEX502LCD ELETTRONICA 4. General Description The TEX502LCD, manufactured by R.V.R. Elettronica, is a transmitter 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 500 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 field tune-up or alignment necessary.
TEX502LCD ELETTRONICA Two major features of TEX502LCD are compact design and user-friendliness. Design is based on a modular concept: the different 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 TEX502LCD features a LD-MOSFET module delivering up to 800W output power.
TEX502LCD ELETTRONICA 4.3 Frontal Panel Description [1] [2] [3] [4] AIR FLOW ON LOCK FOLDBACK [5] R.F. MUTE [6] CONTRAST [7] ESC [8] [9] [10] ENTER [11] DISPLAY [12] POWER User Manual Air flow for the forced ventilation. Green LED, lit when the transmitter is working. Green led, lit when the PLL is locked on the working frequency. Yellow LED, lit when the foldback function is operating (automatic reduction of the delivered RF power).
TEX502LCD 4.4 ELETTRONICA Rear Panel Description [1] [2] [3] [4] [5] PLUG VDE plug for mains supply. FAN Fan for the forced ventilation of the transmitter. R.F. OUTPUT RF output connector, N-type, 50Ω. PHASE ADJ ������������������������������������ Pilot tone phase adjustment trimmer�. PILOT LVL ������������������������������������������������������������� BNC output for the pilot tone. This can be used for external devices (e.g. RDS coders) synchronization�.
TEX502LCD ELETTRONICA [31] RFL EXT. AGC [32] FWD EXT. AGC [33] RS232 [34] REMOTE [35] MODEM 4.5 4.5.1 Connectors Description Left (MONO) / Right Type: Female XLR 1 2 3 4.5.2 Trimmer for automatic gain control based on external signal of reflected power. Trimmer for automatic gain control based on external signal of forward power. Not used. DB15 connector for telemetry of the machine. Non used�.
TEX502LCD ELETTRONICA 5. Installation and use This section provides a step-by-step description of equipment installation and configuration procedure. Follow these procedures closely upon first power-on and each time any change is made to general configuration, 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.
TEX502LCD ELETTRONICA 5.1 5.1.1 Preparation 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.
TEX502LCD ELETTRONICA TEX502LCD @ 90÷260 Vac (1x) 8A tipo 5x20 Mains fuses Table 5.1: Fuses 5.1.2 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 flammable gas.
TEX502LCD ELETTRONICA The transmitter normally have the outlet air in the back of machine. In this case, provide adequate ventilation of the room. HOT COLD 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. HOT COLD User Manual 50cm Rev. 2.
TEX502LCD ELETTRONICA HOT Is highly recommended to install the rack at least 50 cm from the rear and side wall so as to allow an optimum air flow and to facilitate workers. 50cm COLD 50cm 5.1.2.1 Rack power supply connections Provide for the following (applicable to operating tests and putting into service): √ Single-phase 230 VAC or 115 VAC (-15% / +10%) mains power supply for TEX502LCD, both with adequate earth connection.
TEX502LCD ELETTRONICA L N PE 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. R S T N PE 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.
TEX502LCD 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”. 5.1.3 Device power supply connections Provide for the following (applicable to operating tests and putting into service): √ Single-phase 230 VAC or 115 VAC (-15% / +10%) mains power supply for TEX502LCD, both with adequate earth connection.
TEX502LCD ELETTRONICA Note: to ensure both the safety of the operators and the correct functioning of the apparatus, it is essential that the network system is grounded, and that it is properly connected to the equipment. Useful tips for a correct connection: 5.1.4 • Provide an adequate grounding of the electrical system.
TEX502LCD ELETTRONICA Connect the RF output of the transmitter to an antenna cable or to a dummy load capable of dissipating the power generated by the amplifier. To begin with, set transmitter to minimum output power and switch if off. Connect the amplifier INTERLOCK OUT output to the matching INTERLOCK IN input fitted on all R.V.R. Elettronica transmitters as standard; if your transmitter is a different brand, identify an equivalent input.
TEX502LCD ELETTRONICA 5.1.5 First power-on and setup Perform this procedure upon first power-up and each time you make changes to the configuration of the transmitter this component is integrated into. Note : Standard factory settings are RF output power off (Pwr OFF) and regulated output power set to upper limit (unless otherwise specified by customer). 5.1.5.
TEX502LCD ELETTRONICA W) reflects actual output power reading, which may be lower than regulated power supply when Automatic Gain Control is running in power supply limitation mode (please read section 5.3 about RF power supply modulation for more details). Note: Output power may be set using the Pwr OFF control.
TEX502LCD ELETTRONICA To set subcarrier input levels, you may use the same procedure and option “x10” available in the Fnc menu. With this option, modulation level is multiplied by a factor of 10, which means that default menu bar meter reflects a 7.5 kHz deviation. A special menu with separate indications of Left and Right channel levels and relating indicators of nominal levels for maximum deviation (75 kHz) is provided.
TEX502LCD ELETTRONICA The screen that is shown is similar to the following�: Menu 2 NOTE: It is advisable to write down the password set, if you forget the password it is not possible to recover it automatically. To recover the password, contact Customer Service by sending the alphanumeric PUK code of 6 characters generated automatically when entering the password. 1c) To modify power level setting, hold down the ENTER button until opening the power setup menu.
TEX502LCD ELETTRONICA If PWR is set to OFF, i.e. power output is disabled, move cursor to PWR. Press ENTER and label will switch to ON, i.e. power output is enabled. Press ESC twice to go back to the default menu (menu 1). 3) Fine tune power setting from menu 2 (see description of item 1b) until achieving the desired value. WARNING: Equipment is capable of delivering more than rated output power (500 W for TEX502LCD); however, never exceed the specified power rating.
TEX502LCD ELETTRONICA Menù 1 Predefined menu Menu 2 Menù 2 Password menu Power Adjustment Menu Menu 3 Selection Menu Menu 4 Operation Menu Menu 5 Power Menu Menu 6 Power Amplifier Menu Menu 7 Settings Menu Menu 8 Miscellaneous Menu Menu 9 Versions Menu Menu 10 Channels Menu Figure 5.2 When the display is off, touching any key will turn on backlighting.
TEX502LCD ELETTRONICA As soon as operating conditions are restored, power output is re-enabled with the same settings in use prior to the alarm condition. Under 20kHz, no modulation occurs. After a preset time of about 5 minutes (not editable), a NO AUDIO condition is indicated in the main screen, but power is not inhibited. State 2 To gain access to a submenu, select menu name (name is highlighted by cursor) using button or and press the ENTER button.
TEX502LCD ELETTRONICA Mod Modifies modulation display (toggles between “x1” and “x10”). In “x10” mode, instantaneous deviation indication is multiplied by a factor of 10, and the bar meter on the default menu will reflect 7.5 kHz instead of 75 kHz. This display mode is convenient when you wish to display low deviation levels, such as those caused by pilot tone or subcarriers. PgD Modifies Power Good threshold for forward power.
TEX502LCD ELETTRONICA 5.3.3 Power Amplifier (P.A) Menu This screen is made up of four lines that can be scrolled using the buttons and shows the readings relating to final power stage: and Menu 7 Note that these are readings, rather than settings, and cannot be edited (note the empty arrow). 5.3.4 VPA Voltage supplied by amplifier module. IPA Current draw of amplifier module. Eff Efficiency based on ratio of forward power to amplifier module power, in percent ( FWD PWR/(Vpa x Ipa) % ).
TEX502LCD 5.3.5 ELETTRONICA Miscellaneous Menu (Mix) This menu lets you set equipment address in an I2C bus serial connection: Menu 9 IIC I2C address setting. The I2C network address becomes significant when the transmitter is connected in an RVR transmission system that uses this protocol. Do not change it unless strictly required. PSW Setting a numeric password of 4 characters.
TEX502LCD ELETTRONICA The bar meter reflects the level corresponding to a 100% deviation for each channel and provides a convenient reference when setting audio channel input levels. Menu 11 5.4 L Left channel Vmeter. R Right channel Vmeter.. Optional Function A range of options is available for the product to add certain functions and/or modify existing functions. Outlined below are the functions available at the moment, which must be specified on order to R.V.R. Elettronica. 5.4.
TEX502LCD 5.4.1.1 ELETTRONICA FSK Enables / disables FSK code transmission. Cod Shows the Morse code sent normally. Changing the ID code User may change the FSK code used as a station identifier at any time. This procedure requires: • 1 RS232 male-female cable; • Hyper Terminal interface (make sure it has been installed together with Windows®) or equivalent serial communication software.
TEX502LCD ELETTRONICA 6. Identification and Access to the Modules 6.1 Identification of the Modules The TEX502LCD is made up of various modules linked to each other through connectors so as to make maintenance and any required module replacement easier. 6.1.1 TEX502LCD Upper view The figure below shows the equipment upper view with the various components pointed out. figure 8.
TEX502LCD 6.2 ELETTRONICA Spare parts The list below identifies the spare parts codes for a simple replacement of modules in case of maintenance. Spare Parts Name Switching power supply RF final control card RF final section Main audio card + PLL + VCO CPU panel & Display Fan Driver Card 30 / 36 Rev. 2.
TEX502LCD ELETTRONICA 7. Working Principles 7.1 Panel board The panel board contains the microcontroller (PIC18F452) that implements the equipment control software, the display and the other components needed to interface with the user. The board is connected with the other machine modules, both for power supply distribution and for the control and measures. 7.
TEX502LCD 7.3 ELETTRONICA Telemetry board This board is designed to inform the user of the equipment operation state. All input and output signals are available on the DB15 connector. The same board also features the “INTERLOCK” BNC connector for disabling the device. By grounding the central pin, the output power is reduced to zero until the connection is removed. When an R.V.R. amplifier is used, this connector is linked to the power amplifier REMOTE or INTERLOCK by means of a BNC-BNC connection.
TEX502LCD ELETTRONICA 7.6 Control Board The main function of this board is to check and correct the MOSFET polarization voltage of the RF amplifier section. It also provides the measurement of the absorbed current and contains a circuit for signaling power supply unit faults. If no alarms are present, the voltage is adjusted only depending on the set output power, with a feedback mechanism based on the reading of the power really delivered (AGC).
TEX502LCD ELETTRONICA 8. Maintenance and repair procedures 8.1 Introduction This section provides general information about maintenance and electrical settings for the TEX502LCD transmitter. The maintenance is separated into two sections depending on the complexity of the procedure and the instrumentation required for the test to complete the maintenance. 8.
TEX502LCD ELETTRONICA 9. Option This section displays views on the variants compared to the basic version to be requested in the order. For more information about the options, rely on the respective user manuals. 9.1 Power UP/DOWN Option (only software) The Power UP/DOWN option modifies the signal receive function for the signals present at the telemetry connector. RF section on / off control signals are treated as control signals for RF output power level to allow for UP/DOWN setting.
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R.V.R Elettronica Via del Fonditore, 2 / 2c Zona Industriale Roveri · 40138 Bologna · Italy Phone: +39 051 6010506 · Fax: +39 051 6011104 e-mail: info@rvr.it ·web: http://www.rvr.it The RVR Logo, and others referenced RVR products and services are trademarks of RVR Elettronica in Italy, other countries or both. RVR ® 1998 all rights reserved. All other trademarks, trade names or logos used are property of their respective owners.
