TEX500 LCD
Contents
1. 1 NC 2 TXD 3 RX_D 4 Internally connected with 6 5 GND 6 Internally connected with 4 k Internally connected with 8 8 Internally connected with 7 9 NC 6 3 2 Remote o ype DB15 female o Pin Name Type o 2 1 Interlock IN s 2 ExtAGC FWD IN 3 GND 4 SDAIIC VO 5 VPATIm OUT anal 6 FWD tlm OUT anal T Power Good OUT digit 8 GND 9 GND 10 ExtAGCRFL IN 11 SCLIIC I O 12 IPATIm OUT anal 13 RFL Tim OUT anal 14 On cmd IN digit 15 OFF cmd IN digit 6 3 3 Left MONO Right Om XLR female 1 GND 2 Positive 16 24 Rev 1 0 14 06 04 Meant Inhibits power if closed to GND External signal for power limitation AGC Ground Seriali data for IIC communications Mains voltage PA 5 V for 62 V Forward power 3 V for 1245 W Open collector ON when power is over set up threshold cap 5 4 1 Ground Ground External signal for power limitation AGC Clock for IIC communications Mains current PA 5 V for 47 A Reflected power 3 V for 230 W An impulse to ground 500 ms active power output An impulse to ground 500 ms inhibits power output User Manual WR ELETTRONICA TEX500 LCD 7 Technical specifications 7 1 Physical specifications Panel size Depth Weight Working Temperature 7 2 Electrical specifications General RF output power Frequency range Frequency setting Frequency stability Modulation type Spurious and Harmonics suppression Modulation capability Asyncronous resi2. Panel board CPU The panel card contains the microcontroller PIC16F877 that implements the machine s control software the display and the other components needed to interface the user The card interfaces with the other machine modules both for power supply distribution and for the control and measures Telemetry board This card is the input output CPU interface with external world All the available input and output signals are replied on the DB15 REMOTE connector see cap 6 3 2 On the same board there is also the BNC connector of interlock to disable device Closing the central pin to ground the output power is reduced to zero until connection doesnt removed When it is used with a R V R amplifier this connector is connected through a BNC BNC connector to REMOTE or to INTERLOCK of the power amplifier In case of breakdowns of the amplifier the central conductor is place to ground forcing the device to enter in stand by mode Rev 1 0 14 06 04 User Manual n v R TEX500 LCD 8 4 Main board The main card carries out the following functions e Audio and SCA input handling e Generation of carrying frequency e Modulation 8 4 1 Audio input section The audio input section contains the circuits that perform the following functions Input impedance selection e 15 kHz filtering of the R and L channel e Stereo coder e Preemphasis e Mixing of the mono MPX and SCA channels e Clipper limits the le
3. 3 R F OUT 4 PHASE ADJ 5 19KHZPILOT 6 PREENPHASIS 7 MODE MPX IMP 8 SCA2 9 SCA1 10 MPX RDS 11 SCA2 ADJ 12 MPX RDS ADJ 13 SCA1 ADJ 14 RIGHTADJ 15 RIGHT 16 IMPEDANCE 17 MAINS 18 FUSE 1 19 GSM SLOT IN 20 GSM ANT 21 MODEM 22 INTERLOCK OUT 23 RS232 24 INTERLOCKIN Rev 1 0 14 06 04 2324 25 2627 28 2930 531 35233 Figure 6 2 Output at 60 dB refered to output power level adapted to modulation monitoring Do not use it for spectral analysis Grid for the intake of the air flow ventilation RF output connector N Type Pilot tone phase adjustment trimmer BNC output for the 19 kHz pilot tone This can be used for external devices e g RDS coder synchronization Dip switch to set the preenphasys at 50 or 75 us The preenphasys setting is only relevant for the Left and Right inputs in stereo mode and for the mono input in mono mode while MPX input is unaffected by this setting Dip switch to set the operation mode STEREO or MONO and the MPX input impedance 50 Q or 10 kQ BNC connector SCA2 input BNC connector SCA1 input BNC connector MPX unbalanced input Adjustment trimmer for SCA2 input Adjustment trimmer for MPX input Adjustment trimmer for SCA1 input Adjustment trimmer for the Right channel input XLR connector Right channel audio input Dip switch to set the balanced input impedance 600 Q or 10 KQ Mains supply connectors 115 23
4. Amplitude frequency response Total harmonic distortion THD MPX operation Composite S N FM MPX amplitude frequency response MPX Total harmonic distortion THD Stereo separation Stereo operation TEX500 S S N FM Stereo Audio amplitude frequency response Total harmonic distortion THD Stereo separation Remote connections Interlock IN Interlock OUT Serial interface Telemetry card 18 24 Rev 1 0 14 06 04 RMR ELETTRONICA N Type female connector impedance 50 Ohm BNC connector 60 dB wrt carrier level impedance 50 Ohm 1 Vpp minimum load 4 7 kOhm gt 80dB wrt 75 KHz measured in the band 20 Hz 20 kHz 50 us deemph RMS detect 0 5 dB 20Hz 15Khz with preemphasis lt 0 05 gt 5dB wrt 75 kHz measured in the band 20 Hz 100 kHz 50 us deemphasis RMS detect 0 1 dB 20 Hz 53 KHz 0 3 dB 53 KHz 100 KHz lt 0 05 gt 55 dB typical 60dB with external stereo decoder model gt 2 dB wrt 75 kHz measured on decoded channels in the band 20 Hz 20 KHz 50 us deemphasis RMS detector 0 5 dB 20 Hz 15 KHz with preemphasis lt 0 05 gt 50 dB typical 55 dB BNC female the exciter is forced in stand by mode when the inner conductor is grounded BNC female when exciter is in stand by mode the inner conductor usually floating become grounded DB9 female RS232 DB15 female give indications on the state of the device User Manual n v R TEX50
5. 04 19 24 TEX500 LCD n W R 8 1 1 8 1 2 8 1 3 8 2 8 3 20 24 Surge Protection This card contains two mains fuse accessible from outside figure 6 2 note 17 and 29 and it contains a MOV battery to protect main supply and machine from over range mains voltage Then the mains voltage reaches the main Power switch placed on front panel and if itis on ON state mains voltage arrives to TR1 service transformer One of its secondary output generates through interface card 24 V voltage that excites power rele placed on Surge card so PFC or rectifier units connect to it will be on voltage PFC board rectifiers PFC units are rectifiers that modulates absorbed current so that the wave shape is sinusoide having so 99 power factor PFC can work with input mains voltage from 90 V to 250 V When you use it with mains voltage of 110 V is necessary to install two PFC units because there is a lot of absorbed current In PFC output there are 350 V of rectified voltage You can replace PFC units with one or two traditional rectifying units but without power factor protection Power supply There are two power supply switching mode of 50 V 25A that have an input voltage check Output voltage is set from microprocessor in function of RF power required Two power supply units works in parallel mode and they have a balance current circuit so that the distributed current from every module is approximately the same one
6. by trained personnel R V R Elettronica SpA doesn t assume responsibility for injury or damage resulting from improper procedures or practices by untrained unqualified personnel in the handling of this unit Please observe all local codes and fire protection standards in the operations of this unit LS WARNING always disconnect power before opening covers or removing any part of this unit Use appropriate grounding procedures to short out capacitors and high voltage points before servicing LS WARNING this device can irradiate radio frequency waves and if it s not installed following the instructions contained in the manual and local regulations it could generate interferences in radio communications This is a CLASS A equipment In a residential place this equipment can cause hash In this case can be requested to user to take the necessary measures R V R Elettronica SpA reserves the right to modify the design and or the technical specifications of the product and this manual without notice 2 Warranty Any product of R V R Elettronica is covered by a 24 twenty four month warranty For components like tubes for power amplifiers the original manufacturer s warranty applies R V R Elettronica SpA extends to the original end user purchaser all manufacturers warranties which are transferrable and all claims are to be made directly to R V R per indicated procedures Warranty shall not include 1 Damage while the equipmen
7. deviation at 100 and is useful to regulate the input levels of the audio channels Rev 1 0 14 06 04 User Manual WR ELETTRONICA TEX500 LCD 6 External Description This chapter reports the elements of the front and rear panels of the TEX 500 6 1 Front Panel 1 2 3 4 5 6 7 8 9 Mop TEX500 LCD Hlonatoddeottotagoa ON LOCK FOLDBACK R F MUTE CONTRAST ESC LEFT UP RIGHT DOWN ENTER 10 DISPLAY 11 POWER 12 AIR FLOW 13 ALARMS PS1 14 ALARMS PS2 User Manual Figure 6 1 Green LED lit when the exciter 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 Yellow LED lit when the exciter s power output is inhibited by an external interlock command Display contrast adjusting trimmer Push button to exit from a menu Push button to move in the menu system and to modify the parameters Push button to move in the menu system and to modify the parameters Push button to confirm a parameter and to enter in a menu Liquid crystals display ON OFF switch Grid for the intake of the air flow of the forced ventilation Red LED lit when the Power Supply 1 doesn t work correctly Red LED lit when the Power Supply 2 doesn t work correctly Rev 1 0 14 06 04 13 24 TEX500 LCD 6 2 Rear Pannel 1 R F TEST 2 AIR FLOW
8. to help scroll the menu When turned on the LCD display shows the predefined screen with the graphic representation of the instantaneous modulation level and indication of the direct power supplied ccd s HNI Find s 2a ll The bar on right of Mod indicate the progress of the modulation in real time the hatched bar signals the maximum nominal modulation level of 75 kHz 100 Rev 1 0 14 06 04 User Manual n v R TEX500 LCD To change the set power level select the line relating to the power with the DOWN push button and keep the ENTER push button pressed until it enters the modification mode The screen that is shown in the modification mode is similar to the following I FF 2a ll The bottom line gives the instantaneous reading of the power 297W in this example whereas the bar indicates the set level To increase the level press the RIGHT DOWN push button and to reduce it press LEF T UP As the set level increases or decreases the bar becomes longer or shorter to display the current setting When the desired level is reached press ENTER to confirm and exit the predefined menu Note that the set value is stored anyway so if you press ESC or let the timeout go by without pressing a key the power will remain at the last set level If you press the ESC push button while you are in the predefined menu you will be shown the following selection screen from which you can access all the other menus Fanc Pur F A Se
9. value with UP and DOWN push button and then confirm with ENTER The indication of the instantaneous deviation is multiplied by a factor 10 in the x10 mode so the hatched indicator on the predefined menu will coincide with the 7 5 kHz value instead of 75 KHz This display mode is useful when you want to view low deviation levels such as for example those due to the pilot tone or to the subcarriers The Power Good function is a distributed power check and alarm function When output power is under Power Good threshold value machine changes DB15 Remote connector s pin state on rear panel see figure 6 2 note 14 Rev 1 0 14 06 04 User Manual n v R TEX500 LCD Percentage Power Good value is refered to nominal machine power that is 500 W and is not refered to distributed power So if you set 80 value it will correspond to 400 W indifferently from set up power 9 4 2 Power Menu Pwr This screen shows the user the measures relating to the exciter s RF power output e Forward Power Fwd e Reflected Power Rfl EF ied Dae ll kfl 12 ll The values shown are readings and therefore cannot be modified note the empty triangle To modify the power setting use the predefined menu as described above 5 4 3 Power Amplifier Menu PA This screen consisting of three lines that can be scrolled with the UP and DOWN push buttons shows the user the measures relating to the device s final power amplifier e Vol
10. 0 LCD 8 Working Principles A schematic view of the modules and connections making up the TEX500 is shown in figure 8 1 RF 2XRF 2XRF RF Sumo LPF DRIVER gt SPLITTER _ RF MODULES COMBINER bRECT coup E VPA 50VDC 2X VPA cone BIAS INPUT AUDIO RDS gt MAIN BOARD FUSE BOARD FWD PWR RFL PWR 3 X VPA 50VDC 7 BIA INTERFACE gt PANEL Ooa VOLTAGE REG 2 X 50VDC PS ALARM MAINS DC gt Ae a ALIMM 50V 25A LED CARD TELEMETRY PROT RECTIFIER Figure 8 1 Below a brief description of each module s functions is given whereas the complete diagrams and layout of the cards are given in the Technical appendix in vol 2 8 1 Power Supply TEX500 power supply is composed by three important sections 1 Over range protection Surge Protection board see cap 8 1 1 protects machine from eventual unexpected variations of the mains voltage 2 Service This section contains elements that do not regard directly the power supply they are Service transformer Power switch Service voltage selector Service fuse 3 Power Supply Various units supplies an adapted supply to RF power amplifier modules The units that compose power supply are rectifiers PFC or traditionals and switching supply Machine is available in different configuration for voltage rectify One PFC only 230V One rectifier only 230V User Manual Rev 1 0 14 06
11. 0 V 50 60 HZ Mains supply fuse Lodging for introduce the GSM card Pushing the button is possible to extract the card from its lodging GSM antenna DB9 connector for interconnections with extenal modem BNC interlock out connector when exciter is in stand by mode the inner conductor usually floating become grounded DB9 connector for interconnection with other devices and for factory parameters programming BNC interlock in connector the exciter is forced in stand by mode when the inner conductor is grounded User Manual WR ELETTRONICA 25 SERVICE 26 FWD EXT AGC 27 RFL EXT AGC 28 I2C BUS 29 REMOTE 30 LEFT MONO MPX ADJ 31 SERVICE VOLTAGE SEL 32 SERVICE FUSE 33 LEET MONO MPX 34 FUSE 2 User Manual TEX500 LCD DB9 connector for research all processed parameters of the RF section Trimmer for the control of the delivered power in function of the income FWD fold REMOTE connector Trimmer for the control of the delivered power in function of the income RFL fold REMOTE connector DB9 connector for IC bus networking DB15 connector for telemetry of the machine Adjustment trimmer for Left Mono channel input Mains voltage selector 120 240V Service protection fuse XLR connector Left Mono channel input Mains supply fuse Rev 1 0 14 06 04 15 24 TEX500 LCD 6 3 Connectors description 6 3 1 RS232 Type DB9 female h 00000 0 ear OD
12. TEX500 Table of Contents 1 Preliminary Instructions 1 Warranty 1 3 First Aid 2 3 1 Treatment of electrical shocks 2 3 2 Treatment of electrical Burns 3 4 General Description 4 5 Quick guide for installation and use 6 5 1 Preparation 6 5 2 Use T 5 3 Settings and calibration T 5 4 Software 8 6 External Description 13 6 1 Front Panel 13 6 2 Rear Pannel 14 6 3 Connectors description 16 7 Technical specifications 17 7 1 Physical specifications 17 7 2 Electrical specifications 17 8 Working Principles 19 8 1 Power Supply 19 8 2 Panel board CPU 20 8 3 Telemetry board 20 8 4 Main board 21 8 5 Driver card 21 8 6 Power amplifier 21 8 LPF card 22 8 8 BIAS card 22 9 Identification of the Modules 23 9 1 Upper view 23 9 2 Bottom view 24 User Manual Rev 1 0 14 06 04 l TEXS00 Rev 1 0 14 06 04 This page was intentionally left blank User Manual n v R TEX500 LCD 1 Preliminary Instructions This manual is written as a general guide for those having previous knowledge and experience with this kind of equipment well conscious of the risks connected with the operation of electrical equipment It is not intended to contain a complete statement of all safety rules which should be observed by personnel in using this or other electronic equipment The installation use and maintenance of this piece of equipment involve risks both for the personnel performing them and for the device itself that shall be used only
13. TEXS00 User Manual Volume 1 re Iminary Mersi on CEO Manufactured by RW Ra File name TEX500 en P65 Version 1 0 Date 14 06 2004 Revision History Date Version Reason Editor 14 06 04 1 0 First Version G De Donno TEX500 User Manual Version 1 0 Copyright 2004 R V R Elettronica SpA Via del Fonditore 2 2c 40138 Bologna Italia Telefono 39 051 6010506 Fax 39 051 6011104 Email info rvr it Web www rvr it All rights reserved 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 information storage and retrieval system without written permission of the copyright owner Notification of intended purpose and limitations of product use This product is a FM transmitter intended for FM audio broadcasting It utilises 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 SpA declares that this FM transmitter is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC CE n v R
14. dual AM syncronous residual AM C A power supply Power consumption at 500 W RF Input Left Mono MPX Input Right Mono Input MPX SCA RDS input Input impedance Input level Preemphasys SCA1 and SCA2 input SCA1 and SCAZ input impedance SCA1 and SCAZ input level User Manual Rev 1 0 14 06 04 483 mm 19 x 132 5 mm 3 HE 650 mm 26 1 2 31 Kg 10 C 50 C 0 to 500 W adjustable with continuity 87 5 MHz 108 MHz step 10kHZz it is possible to specify different steps at the moment of the order Direct software programming 1ppm from 10 C to 50 C Direct carrier modulation Respects relevant FCC and CCIR standards typical 75 dBc Respects relevant FCC and CCIR standards typical 240kHz MPX o Mono 210 kHz Stereo lt 65 dB wrt 100 peak AM without deemphasis lt 55 dB wrt 100 peak AM with 75 kHz deviation at 400Hz without deemphasis 90 V 250 V full range Power factor gt 0 97 with PFC 0 85 kVA Type XLR female balanced or unbalanced Type XLR female balanced or unbalanced Type BNC unbalanced 10 kOhm o 600 Ohm XLR Left Right Mono 10 kOhm o 50 Ohm BNC MPX selectable with DIP switch 20 dBm 13 dBm continuosly adjustable via trimmer Selectable 0 50 us CCIR 75 us FCC 2 BNC unbal connectors 10 kOhm 20 dBm 13 dBm for 2 0 kHz continuosly adjustable via trimmer 17 24 TEX500 LCD Output RF Out RF Test 19 kHz pilot tone MONO operation S N FM
15. each other with male and female connectors or with flat cables ending in connectors This type of design makes maintenance operations and any required module replacement easier The RF power section makes use of two MOSFET modules able to deliver more than 300W each The operating frequency is governed by a thermally compensated reference oscillator working within a phase locked loop PLL The TEX500 reaches frequency lock within a maximum of 30 seconds TEX500 is able to work in all range frequency without calibration and setting operations The microprocessor system includes an LCD display on front panel and push button panel for interaction with the user and implements the following functions e Setting the output power e Setting the operating frequency e Activation and deactivation of power delivery e Measurement and display of the working parameters of the exciter e Communications with outside devices Four LEDs indicate the machine status and are found on the front panel ON LOCK FOLDBACK and RF MUTE moreover two red LEDs indicate eventual Power Supply breakdowns Rev 1 0 14 06 04 User Manual n v R TEX500 LCD The exciter s management software is based on a menu system The user can navigate between the various submenus by using four push buttons ESC LEF T UP RIGHT DOWN and ENTER On rear panel there are Mains connectors with a voltage selector that allow to use different mains voltage Full Range versio
16. ers you can use a similar procedure while getting help from the x10 option that can be selected from the Fnc menu With this option the modulation level indicated is multiplied by a factor 10 so the drawn indication of the predefined menu coincides with a deviation value of 7 5 KHz Rev 1 0 14 06 04 7124 TEX500 LCD n W R 5 4 8 24 For the stereophonic version there is a special menu in which the levels of the Right and Left channels are indicated separately with the relative indicators of the nominal levels for the maximum deviation of 75 KHz Preemphasis switch 6 Figure 6 2 Land R input impedance type XLR switch 16 Figure 6 2 TE Switch 1 R XLR input impedance ON 600 Q OFF 10 kQ Switch 2 L XLR input impedance ON 600 2 OFF 10 kQ Operation mode input impedance MPX 7 Figure 6 2 switch 7 Figure 6 2 a Switch 1 Operation mode ON Mono OFF Stereo Switch 2 MPX input impedance ON 50 Q OFF 10 kQ Software The machine is provided with a two line LCD display where a set of menus is shown An overall view of the machine s menus is given in figure 5 1 One of the following symbols may be present on the left side of the display depending on the case F The parameter highlighted by the arrow can be modified E The arrow points out the current line the parameter of which cannot be modified This symbol is present in the menus made up of more than two lines
17. especially if the machine is used as a modulator for a power amplifier Set the desired power level from the predefined menu Activate the RF power output from the Fnc menu Settings and calibration The only adjustments to be manually made on the TEX500 are those relating to the audio operation levels and modes A trimmer for each one of the exciter s inputs is on the rear panel of the device The printing on the panel indicates which input each trimmer refers to The sensitivity of the various inputs can be adjusted using the trimmers within the limits described in the following tables Ingresso Figura6 2 Trimmer Sensibilit Note RDS 10 11 20 13dBm Input level for 2 0 kHz deviation 30 dB SCA1 9 12 8 413dBm_ Input level for 7 5 kHz deviation 20 dB SCA2 8 10 8 4 13dBm Left 83 25 18 13dBm Input level for 75 kHz deviation 0 dB Right 15 13 18 4 13dBm When adjusting the sensitivity level of the inputs keep in mind that the instantaneous modulation level is given in the predefined menu and that an indicator signals the 75 KHz level To get a proper adjustment we recommend you put a level signal on the machine s output equivalent to the level of its own audio program and adjust the relative trimmer until the instantaneous deviation coincides with the indication of 75 KHz To adjust the levels of the inputs of the subcarri
18. gure 1 Figure 2 Check carotid pulse Figure 3 if pulse is absent begin artificial circulation Figure 4 depressing sternum Figure 5 Rev 1 0 14 06 04 User Manual n v R TEX500 LCD Figure 3 Figure 4 Figure 5 In case of only one rescuer 15 compressions alternated to two breaths If there are two rescuers the rythm shall be of one brath each 5 compressions e Do not interrupt the rythm of compressions when the second person is giving breath e Call for medical assistance as soon as possible 3 1 2 If victim is responsive e Keep them warm Keep them as quiet as possible e Loosen their clothing a reclining position is recommended e Call for medical help as soon as possible 3 2 Treatment of electrical Burns 3 2 1 Extensive burned and broken skin e Cover area with clean sheet or cloth e Do not break blisters remove tissue remove adhered particles of clothing or apply any salve or ointment e Treat victim for shock as required e Arrange transportation to a hospital as quickly as possible e If arms or legs are affected keep them elevated If medical help will not be available within an hour and the victim is conscious and not vomiting give him a weak solution of salt and soda 1 level teaspoonful of salt and 1 2 level teaspoonful of baking soda to each quart of water neither hot or cold Allow victim to sip slowly about 4 ounces half a glass over a period of 15 minutes Discontinue fluid if vomi
19. n audio input and RF output connectors telemetry connector protection fuses two inputs for modulated signals on subcarriers from special external encoders normally used in Europe for RDS Radio Data System transmission User Manual Rev 1 0 14 06 04 5 24 TEX500 LCD RMR J 5 1 gt gt 6 24 Quick guide for installation and use This chapter contains the necessary information for installing and using the machine In the event any aspects are not completely clear for example when using the machine for the first time we recommend you carefully read the entire description contained in this manual Preparation Unpack the exciter and before doing any other operation be sure it has not been damaged during transport In particular check that all the connectors are in perfect condition Check that the voltage selected coincide with mains voltage The protection fuses can be accessed from the outside on the rear panel see figures 6 2 Extract the fuse carrier with a screwdriver to check its integrity or for replacement if necessary The fuses to be used are different and depends from the mains voltage selected Mains Voltage 115 V Mains Fuse 25 A 10x38 Service Fuse 2A 5x20 Mains Voltage 230 V Mains Fuse 16 A 10x38 Service Fuse 1A 5x20 Check that the TEX500 switch is in the off position POWER button is on the front panel see figure 6 1 and inhibits Surge Protection machine s card Connect the RF
20. o suppress the harmonic components generated by the amplifier below the levels required by regulations Moreover in the end of filter there is a directional coupler its function is the measurement of the forward and reflected output power On this card there is an RF sample at 60dB compared with the output and it is available on a BNC connector This sample is useful for checking the characteristics of the carrier but not of the higher order harmonics BIAS card Main function of this card is to check and to correct the polarization voltage BIAS of Mosfet in RF amplifier section Moreover it supplies the measure of the absorbed current as sum of the absorbed currents from every module and it contains a circuit for the signalling of the breakdowns in the Power Supply Without alarm condition Bias voltage is regulated only in function of output power set up with a feedback mechanism based on the reading of the effectively distributed power AGC Bias voltage is also influenced from other factors like Excess of reflected voltage External AGC signals Ext AGC FWD Ext AGC RFL Excess of temperature Excess of absorbed current from a RF module Rev 1 0 14 06 04 User Manual Lay TEX500 LCD 9 Identification of the Modules The TEX500 is made up of various modules connected to each other with connectors so as to make maintenance and any required module replacement easy 9 1 Upper view The 9 1 figure show
21. output of the exciter to the antenna cable or to a fictitious cargo able to dissipate the power generated by the TEX500 ATTENTION without load when machine is working don t touch RF output connector to avoid electrical shocks and burns Connect the mains cable to the MAINS connector on rear panel see figure 6 2 ATTENTION mains connector is a bare terminals attention that line is not under voltage when you are connecting it ATTENTION It is crucial that the mains system be provided with earthing to ensure both the operators safety and correct operation of the device Connect the audio cables and RDS SCA of the signal source to the proper connectors on the back of the exciter help yourself with figure 6 2 Rev 1 0 14 06 04 User Manual RW Rs ELETTRONICA 5 2 5 3 User Manual TEX500 LCD Use Energize the exciter by putting the switch found on the front panel in the ON position Enter the Set menu and set the desired operating frequency See chapter 5 4 fora description of the various menus By using the switches and trimmer found on the rear panel set the characteristics Impedance preemphasis and if it s necessary stereo mono and the levels of the audio and RDS inputs if used NOTE When the device leaves the factory it is delivery with the output power adjustment at minimum and in the OFF position It is however recommended that you always check the set level before activating power supply
22. s the view from above the machine with the various components pointed out 24 eee ey z4 a a x t T r T s 9 a B A Po o ea f A 1h a N e Wus o are sits s Lk a o Ta 13 12 11 Figure 9 1 1 Bias Board SLBIAS1K3U 2 2 LPF Board SLLPFTEX1KL 3 Filter Card SLFILPSPJ1KC 4 Panel Board SLPANTXLC004 5 Impeller FAN1 6 Power Factor PFCPSL1000 7 Alim 50V 25A PSL1000_PJ1K 8 Surge Protection Board SLSRGPRPJ1KM 9 Main Board SLMBDTEXLC04 10 Impeller FAN2 11 Driver Board SLDRVTEX500L 12 Splitter Card SLSITEX500L1 13 RF Board SLRFPJKMU44 14 Combiner Card SLCOTEX500L1 15 Fuse Board SLFUSTX500 1 User Manual Rev 1 0 14 06 04 23 24 TEX500 LCD RR 9 2 Bottom view The 9 2 figure shows the view from under the machine with the various components pointed out figura 9 2 1 Impeller FAN1 2 Telemetry Board SLTLMTXLCDO2 3 Surge Protection Board SLSRGPRPJ1KM 4 Trasformer TR1 TRFTEX1000T 5 Interface Board SLINTTX500 2 6 LED PS Board SLLEDPSTEX1K 24 24 Rev 1 0 14 06 04 User Manual
23. ssumes the risks of loss i e R V R is never responsible for damage or loss until the package reaches R V R premises For this reason we suggest you to insure the goods for the whole value Shipment must be effected C I F PREPAID to the address specified by R V R s service manager on the authorization DO NOT RETURN UNITS WITHOUT OURAUTHORIZATIONAS THEY WILL BE REFUSED 4 Be sure to enclose a written technical report where mention all the problems found and a copy of your original invoice establishing the starting date of the warranty Replacement and warranty parts may be ordered from the following address Be sure to include the equipment model and serial number as well as part description and part number R V R Elettronica SpA Via del Fonditore 2 2c 40138 BOLOGNA ITALY Tel 39 051 6010506 First Aid The personnel employed in the installation use and maintenance of the device shall be familiar with theory and practice of first aid Treatment of electrical shocks If the victim is not responsive Follow the A B C s of basic life support e Place victim flat on his backon a hard surface e Open airway lift up neck push forehead back Figure 1 e clear out mouth if necessary and observe for breathing e if not breathing begin artificial breathing Figure 2 tilt head pinch nostrils make airtight seal four quick full breaths Remember mouth to mouth resuscitation must be commenced as soon as possible Fi
24. t Mix Urs Lick To enter one of the submenus select its name which will be underlined by a blinking cursor with the RIGHT or LEFT push buttons and then press the ENTER push button If you instead want to go back to the predefined menu all you have to do is press the ESC push button again Figure 5 1 shows the complete set of the machine s menus User Manual Rev 1 0 14 06 04 9 24 TEX500 LCD n v R 9 4 1 10 24 Switch on Fwd 297 WW Rfl 12 Il ESC a Fie Pur F A Set Mix Urs Lik Selection Menu ENTER Operation Menu Fnc Fwd 297 WW kfl 12 Il Power Menu Pwr PUPS Ira Tmt Fi 98 66 MHz Setting Menu Set FIIC a37 Miscellaneous Menu Mix tRel 026010 906 Dat 197 037260 q4 Version Menu Vrs Lo MMN Pe m MDTINNUVUNNANNUUUUINNNT Channels Menu L amp R Figure 5 1 Operation Menu Fnc Fod x1 Fur Of Puig SH The user can set the deviation display mode activate or deactivate the supply of power from the exciter and set percentage power of Power Good from this menu To work with one of the two functions select the relative line with the UP and DOWN push buttons and then press and continue pressing the ENTER push button until the command is accepted So the Pwr setting will become from On to Off or inverse and the Mod setting will become from x1 to x10 or inverse To change the percentage value of Power Good after selected PWG voice you must change its
25. t is being shipped to R V R for repairs 2 Any unauthorized repair modification 3 _Incidental consequential damages as a result of any defect 4 Nominal non incidental defects 5 Re shipment costs or insurance of the unit or replacement units parts Any damage to the goods must be reported to the carrier in writing on the shipment receipt Any discrepancy or damage discovered subsequent to delivery shall be reported to R V R Elettronica within 5 five days from delivery date To claim your rights under this warranty you shold follow this procedure 1 Contact the dealer or distributor where you purchased the unit Describe the problem and so that a possible easy solution can be detected Dealers and Distributors are supplied with all the information about problems that may occur and usually they can repair the unit quicker than what the manufacturer could do Very often installing errors are discovered by dealers User Manual Rev 1 0 14 06 04 1 24 TEX500 LCD RMR 3 1 3 1 1 2 24 2 Ifyour dealer cannot help you contact R V R Elettronica and explain the problem If it is decided to return the unit to the factory R V R Elettronica will mail you a regular authorization with all the necessary instructions to send back the goods 3 When you receive the authorization you can return the unit Pack it carefully for the shipment preferably using the original packing and seal the package perfectly The customer always a
26. tage VPA e Current consumption IPA e Temperature TMP Pls ak LJ Fa YF H Tm dran L 5 4 4 Settings Menu Set This menu lets you read and set the operating frequency FFI 95 86 MHz By a long press on the ENTER push button you can modify the set frequency using the UP the frequency increases and DOWN push buttons User Manual Rev 1 0 14 06 04 11 24 TEX500 LCD n W R 9 4 5 9 4 6 5 4 121 24 After having set a new frequency value press the ENTER push button to confirm the choice The exciter will release from the current frequency the LOCK LED turns off and it will latch onto the new operating frequency LOCK turns back on Instead if you press ESC or let the timeout go by the frequency will remain set at the previous value Miscellaneous Menu Mix This menu allows you to set the machine s address in a o I C_ type of serial bus connection FIIL 9a The I C network address is important when the exciter is connected to an RVR transmission system that envisages use of this protocol We recommend you do not modify it without a good reason Versions Menu Vrs This screen shows the version and the release date of the software kkel seSR1 89H Dat 119 Hs 2Hh4 Channels Menu L amp R The right and left channel input levels are depicted with horizontal bars as shown in the following figure PL STINT F cM The hatched pointer indicates the level that corresponds with the total
27. ting occurs i DO NOT give alcohol 3 2 2 Less severe burns e Apply cool not ice cold compresses using the cleansed available cloth article e Do not break blisters remove tissue remove adhered particles of clothing or apply salve or ointment e Apply clean dry dressing if necessary e Treat victim for shock as required e Arrange transportation to a hospital as quickly as possible e If arms or legs are affected keep them elevated User Manual Rev 1 0 14 06 04 3 24 TEX500 LCD n W R 4 4 24 General Description The TEX500 made by R V R Elettronica SpA 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 10kHz step with an output RF power adjustable up to a maximum of 500 W into a 50 Ohm standard load TEX500 is available in version with Integrarted Stereo Coder This exciter contains a low pass filter that reduces the harmonic emissions to below the limits allowed by international regulations CCIR or FCC and can therefore be used as a transmitter connected directly to the antenna Outstanding audio features this device has are low distortion and intermodulation values typically 0 03 and the high signal to noise ratio typically 80 dB Important TEX500 features are compactness and great use simplicity The machine infact was designed to be modular its various functions are run from modules nearly all connected to
28. vel of the modulating signal so that the frequency deviation does not go past the 75 kHz level e Measurement of the modulating signal 8 4 2 PLL VCO section This section of the card generates the signal in modulated radiofrequency It is based on a PLL diagram that uses an MB15E06 type of integrated PLL 8 5 Driver card Before going to the final power amplifier the RF signal is pre amplified in this section through a BFR 540 transistor When the exciter is put in stand by the driver is inhibited 8 6 Power amplifier RF power amplifier section is made with two power amplifier modules combined through a Wilkinson splitter and a Wilkinson combiner in strip line technology The splitter is used to divide input power from driver card and to supply an half of it to every RF module The combiner is used to combine output power from every RF module so as to have total power amplifier Splitter amplifier and combiner are plans so that powers generated from the amplifiers add its in phase diminishing the loss of balance and therefore the dissipation of useful power User Manual Rev 1 0 14 06 04 21 24 TEX500 LCD n W R 8 7 8 8 22 24 All RF section is placed on afin that supplies to the cooling through forced ventilation Every RF module supplies 300W and is supplied from a switching supply The active device used in amplifier module is a Mosfet BLF278 LPF card This card is a low pass filter and its function is t
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