TEX300 LCD
Contents
1. 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 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 Eis oe Z L Ifa 37 9 A C Tm VPA Visualization of the amplifier module voltages IPA Visualization of the amplifier module current User Manual Rev 0 1 04 02 05 11 26 TEX300 LCD R VA 5 4 4 5 4 5 5 4 6 12 26 Eff Visualization of the efficiency IPA Visualization of the inner temperature of the machine Settings Menu Set This menu lets you read and set the operating frequency Fi 95 606 MHz Fl 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 serial bus connection 1 C type FIIC 93 IIC Regulation of the I2 C address The I C network address is important when the exciter is connected to an RVR transmission system that envisages use of this protocol We recomm2. 6 PHASE ADJ 7 19KHZPILOT 8 PREENPHASIS 9 MODE MPX IMP 10 SCA 2 11 SCA 1 12 MPX RDS 13 SCA2ADJ 14 MPX RDS ADJ 15 SCA1 ADJ 16 RIGHTADJ 17 RIGHT 18 IMPEDANCE 19 MAINS 20 FUSE 1 21 R F OUT 22 INTERLOCK OUT 23 SERVICE 24 INTERLOCK IN 25 MODEM 26 FWD EXT AGC User Manual ry 1 E E Ery E SA aa N Yo ce 23 24 25 262728 29 30 31 3233 34 Figure 6 2 Output at 60 dB refered to output power level adapted to modulation monitoring Do not use it for spectral analysis Lodging in order to introduce the GSM card Pressing the button is possible extract the card from its lodging SMA connector for GSM Antenna Grid for the intake of the air flow ventilation 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 Adjustment trimmer for MPX input Adjustment trimmer for SCA2 input Adjustment trimmer for MPX or RDS input Adjustment trimmer for SCA1 in
3. CCIR weighted with deemphasys 50 us gt 68 dB wrt 40kHz CCIR weighted with deemphasis 50 us better than 0 5 dB 30Hz 15kHz tipycal 0 2 dB lt 0 1 tipycal 0 07 THD N 30Hz 15kHz lt 0 02 measured with1 KHz e 1 3 kHz tones 1 1 ratio at FM 75 kHz lt 0 1 tipycal 0 05 measured with 3 18kHz square wave and 15 kHz sine wave a 75 kHz FM gt 80 dB wrt 75 kHz measured in the band 20 Hz HPF no LPF with deemphasis 50 us detector RMS tipycal 85 dB 0 2 dB 30 Hz 53 kHz 0 5 dB 53 kHz 100 kHz lt 0 1 THD N 30Hz 53kHz lt 0 15 THD N 53kHz 100kHz lt 0 1 typical 0 05 measured with 3 18kHz square wave and 15 kHz sine wave at 75 kHz FM gt 50 dB tipycal 60dB 30Hz 53kHz gt 75 dB wrt 75 kHz measured in the band 20 Hz HPF 23 kHz LPF with deemphasis 50 us detector RMS L amp R demodulated tipycal 78 dB gt 65 dB wrt 75kHz CCIR weighted with deemphasis 50 us L amp Rdemodulated gt 58 dB wrt 40kHz CCIR weighted with deemphasis 50 us L amp Rdemodulated 0 5 dB 30 Hz 15 kHz lt 0 05 THD N 30Hz 15kHz User Manual Stereo Separation Main Sub Ratio Remote connections Interlock IN Interlock OUT Serial Interface Service Cbus Modem Remote Interface Telemetry Interface Options TLM 10MHz User Manual TEX300 LCD gt 50 dB tipycal 55 dB gt 40 dB tipycal 45 dB 30Hz 15kHz BNC female type placing to ground the
4. The RF section is placed on a fin that supplies to the cooling through forced ventilation LPF card This card is a low pass filter and its function is to 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 Rev 0 1 04 02 05 User Manual INAN TEX300 LCD 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 8 8 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 REFL Excess of temperature Excess of absorbed current from a RF module User Manual Rev 0 1 04 02 05 25 26 TEX300 LCD T
5. center conductor the transmitter comes forced in stand by mode BNC female type when the transmitter enter in stand by mode the central conductor normally floating come place to gorund DB9 female RS232 DB9 female reserved to the firmware programmation DB9 female 1 C bus communication for the optional telemetry DB9 female optional telemetry for modem via RS232 DB15 female IIC 5 analogic input digital 5 analogic output digital Tipo DB15 female gives indications on the state of the machine Telemetry Interface battery charge and GSM Modem call the retailer in order to verify the availability SMA optional connector for the 10MHZ output Rev 0 1 04 02 05 21 26 TEX300 LCD 8 Working Principles A schematic view of the modules and connections making up the TEX300 LCD is shown in figure 8 1 5 LPF DIRECT COUPL DRIVER RF MODULES l VPA 50VDC VPA 50VDC j t BIAS RF MAIN BOARD FUSE BOARD INPUT AUDIO RDS gt FWD PWR RFL PWR A 2 X VPA 50VDC T J BIAS INTERFACE lt gt VOLTAGE REG 50VDC PS ALARM v MAINS em pc gt gt ALIM 50V 25A RECTIFIER LED CARD TELEMETRY Figure 8 1 Below a brief description of each module s functions is given whereas the complete diagrams and layout of the cards are gi
6. 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 residual AM Syncronous residual AM Display Input device Signalling device Preemphasis C A power supply Power Factor Correction AC Apparent Power Consumption Active Power Consumption Input Left Mono MPX Input Input impedance Input level Right Input Input impedance Input level MPX RDS Input Input impedance Input level SCA1 and SCA2 Inputs Input impedance User Manual Rev 0 1 04 02 05 482 6 mm 19 x 132 5 mm 5 22 520 mm 20 47 24 Kg 10 C 50 C 0 to 300 W adjustable with continuity 87 5 MHz 108 MHz step 10kHz 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 lt 75 dBc typical 80 dBc Respects relevant FCC and CCIR standards typical 180kHz MPX o Mono 150 kHz Stereo gt 65 dB typical 70 dB wrt 100 peak AM without deemphasis gt 50 dB typical 60 dB wrt 100 peak AM with 75 kHz deviation at 400Hz without deemphasis Alphanumerical LCD 2 row x 16 characters 4 pushbutton 4LED Selectable 0 50 us CCI
7. 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 User Manual Rev 0 1 04 02 05 7 26 TEX300 LCD 5 4 8 26 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 e Preemphasis switch 6 Figure 6 2 50 us 75 us e L and R input impedance type XLR switch 16 Figure 6 2 Switch 1 R XLR input impedance ON 600 Q9 OFF 10 kQ NO CE Switch 2 L XLR input impedance ON 600 Q OFF 10 kQ e Operation mode input impedance MPX 7 Figure 6 2 switch 7 Figure 6 2 lt 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 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 to help scroll the menu When turned on the LCD display shows the predefined scr
8. 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 LE DO NOT RETURN UNITS WITHOUT OURAUTHORIZATION AS 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 RY R V R Elettronica SpA Service Via del Fonditore 2 2c 40138 BOLOGNA ITALY Tel 39 051 6010506 3 First Aid The personnel employed in the installation use and maintenance of the device shall be familiar with theory and practice of first aid 3 1 Treatment of electrical shocks 3 1 1 If the victim is not responsive Follow the A B C s of basic life support 2 26 Place victim flat on his backon a hard surface Open airway lift up neck push forehead back Figure 1 clear out mouth if necessary and observe for breathing 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 Figure 1 Figure 2 Check carotid pulse Figure 3
9. to the forward power The percentage value of Power Good is refers to the nominal power of the equipment that is to 300 W not to the distributed forward power If a value equal to 50 is set it will correspond to 150 W indifferently from the set up power The Power Good function is a distributed power check and 10 26 Rev 0 1 04 02 05 User Manual RIR TEX300 LCD 5 4 2 5 4 3 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 PgR Modification of the Power Good threshold referred to the reflected power The percentage value of Power Good is refers to the nominal power of the equipment that is to 30 W not to the distributed reflected power Per cui se si imposta un valore pari a 50 esso corrisponder a 15 W indifferentemente dalla potenza impostata If a value equal to 50 is set it will correspond to 150 W indifferently from the set up power It works only in presence of the telemetry option TLM used for the send of the reflected power alarm The modification of this parameter does not have effect on any output signal on the DB15 Remote connector placed on the rear panel of the equipment Power Menu Pwr This screen shows the user the measures relating to the exciter s RF power output EF ied 2a Il Ffl 12 I Fwd Visualization of the forward power Ril Visualization of the reflected power
10. 300 LCD ELETA 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 T7 5 3 Settings and calibration 7 5 4 Software 8 6 External Description 14 6 1 Front Panel 14 6 2 Rear Pannel 15 6 3 Connectors description 17 7 Technical specifications 19 7 1 Physical specifications 19 7 2 Electrical specifications 19 8 Working Principles 22 8 1 Power Supply 22 8 2 Panel board CPU 23 8 3 Telemetry board 23 8 4 Main board 24 8 5 Driver card 24 8 6 Power amplifier 24 8 7 LPF card 24 8 8 BIAS card 25 User Manual Rev 0 1 04 02 05 i TEX300 LCD Rev 0 1 04 02 05 This page was intentionally left blank User Manual INAN TEX300 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 by trained personnel R V R Elettronica SpA doesn t assu
11. 6 3 1 RS232 Type DB9 female OONDAARWHNDY NC TX_D RX_D Internally connected with 6 GND Internally connected with 4 Internally connected with 8 Internally connected with 7 NC 6 3 2 Service for programming of the factory parameters Type DB9 female 6 3 3 IPC Bus ooOoNOoQo QGARA UN Type DB9 male User Manual OONDARWHDY NC SDA Serial Data SCL Serial Clock NC GND GND Rev 0 1 04 02 05 17 26 TEX300 LCD 6 3 4 Remote Type DB15 female Pin Name Interlock Ext AGC FWD GND SDA IIC VPA Tim FWD tlm Power Good GND GND Ext AGC RFL SCL IIC IPATIm RFL Tim On cmd OFF cmd 6 3 5 Left MONO Right Type XLR female 1 2 3 18 26 GND Positive Negative I O OUT anal OUT anal OUT digit N I O OUT anal OUT anal IN digit IN digit Rev 0 1 04 02 05 Meant Inhibits power if closed to GND Ext signal 1 12V for power limitation AGC Ground Serial data for IIC communications Mains voltage PA 3 9V F S Forward power 3 9V F S Open collector ON when power is over set up threshold cap 5 4 1 Ground Ground Ext signal 1 12V for power limitation AGC Clock for IIC communications IIC Mains current PA 3 9V F S Reflected power 3 9V F S An impulse to ground 500 ms active power output An impulse to ground 500 ms inhibits power output User Manual i SAN ELETA TEX300 LCD
12. R 75 us FCC 115 V 230 V 15 full range gt 0 98 560 VA 520 W Type XLR female balanced or unbalanced 10 kOhm o 600 Ohm 13 dBm 13 dBm continuosly adjustable via trimmer Type XLR female balanced or unbalanced 10 kOhm o 600 Ohm 13 dBm 13 dBm continuosly adjustable via trimmer Type BNC unbalanced 10 kOhm or 50 Ohm selectable via DIP switch 13 dBm 13 dBm per 7 5 KHz FM externally adjustable Type BNC unbalanced 10 kOhm 19 26 TEX300 LCD Input level Output RF Out Output impedance RF Test Output impedance Output level 19kHz Out Output impedance 19 KHz Pilot tone MONO Operation S N FM Amplitude frequency response Total harmonic distortion THD Intermodulation distortion Transient intermodulation distortion Funzionamento MPX Composite S N FM Amplitude frequency response Total harmonic distortion THD Transient intermodulation distortion Stereo separation Stereo Operation S N FM stereo Amplitude frequency response Total harmonic distortion THD 20 26 Rev 0 1 04 02 05 8 dBm 13 dBm for 7 5 KHz FM externally adjustable N Type female connector impedance 50 Ohm 50 Ohm BNC connector 50 Ohm Approx 60 dB referred to the RF output BNC connector for the RDS synchronization and isofrequency gt 5 Ohm 1Vpp gt 80 dB wrt 75 kHz measured in the band 20 Hz HPF noLPF with deemphasys 50 us detector RMS tipycal 85 dB gt 73 dB wrt 75 kHz
13. TEX300 LCD User Manual Volume 1 reliminar ersion Manufactured by RW Ra Italy C File name TEX300_en P65 Version 0 1 Date 04 02 2005 Revision History Date Version Reason Editor 04 02 05 0 1 First Version J Berti TEX300 LCD User Manual Version 1 0 Copyright 2005 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 RWA TEX
14. 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 User Manual Rev 0 1 04 02 05 23 26 TEX300 LCD 8 4 8 4 1 8 4 2 8 5 8 6 8 7 24 26 Main board The main card carries out the following functions e Audio and SCA input handling e Generation of carrying frequency e Modulation Audio input section The audio input section contains the circuits that perform the following functions e Input impedance selection e 15 kHz filtering of the R and L channel Stereo coder e Preemphasis e Mixing of the mono MPX and SCA channels e Clipper limits the level of the modulating signal so that the frequency deviation does not go past the 75 kHz level e Measurement of the modulating signal 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 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 Power amplifier The RF module supplies 300W and is supplied from a switching supply The active device used in amplifier module is a Mosfet BLF278
15. een with the graphic representation of the instantaneous modulation level and indication of the direct power supplied Hcc s INI Fwd Er lIl 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 0 1 04 02 05 User Manual RVR TEX300 LCD To change the set power level press the ENTER push button until it enters the modification mode The screen that is shown in the modification mode is similar to the following Power Setting Fwy for li 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 LEFT UP push button and to reduce it press RIGHT DOWN __ 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 Fie Pur F A Set Mix Urs Like FSK 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 ha
16. ements of the front and rear panels of the TEX300 LCD 6 1 Front Panel 1 2 3 4 5 6 7 8 9 U BOLOGNA U TEXS500 LCD ON LOCK FOLDBACK R F MUTE CONTRAST ESC LEFT UP RIGHT DOWN ENTER 10 DISPLAY 11 POWER 12 AIRFLOW 13 ALARMS PS1 14 ALARMS PS2 14 26 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 0 1 04 02 05 User Manual INAN 6 2 Rear Pannel TEX300 LCD 7 8 9 10111213141516 17 18 19 1 R F TEST 2 GSMSLOT IN 3 GSMANT 4 AIRFLOW 5
17. emetry 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 0 1 04 02 05 5 26 TEX300 LCD 5 5 1 6 26 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 TEX300 LCD 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 output of the exciter to the antenna cable or to a fictiti
18. end you do not modify it without a good reason Versions Menu Vrs This screen shows the version and the release date of the software tFel 2010966 Dat 19 70372 0iq Tab TEsL 123456 Rel Visualization of the software release Rev 0 1 04 02 05 User Manual RVR TEX300 LCD Dat Visualization of the date release Tab Visualization of the release of the configurations table loaded in memory 5 4 7 Channels Menu L amp R The right and left channel input levels are depicted with horizontal bars as shown in the following figure The hatched pointer indicates the level that corresponds with the total deviation at 100 and is useful to regulate the input levels of the audio channels Lo IMMM e TIVITVUTVULNUUNUTNUIINI Visualization of the Vmeter for left channel R Visualization of the Vmeter for right channel 5 4 8 Men FSK FSK Menu for the regulation of the operation parameters of the TEX300 LCD for FSK signalling that it consists in the periodic forwarding of a alphanumeric code of 6 characters codifies in the Morse code using one frequency shift of the frequency transmission FSE OM Cod 123545 FSK Enabled or disabled the FSK function Cod Codice Morse inviato composto da un carattere tre cifre e due caratteri Morse code sended consisting of a character three ciphers and two characters User Manual Rev 0 1 04 02 05 13 26 TEX300 LCD 6 External Description This chapter reports the el
19. epair 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 0 1 04 02 05 1 26 TEX300 LCD INAN ELET If your 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 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 assumes the risks of loss i e R V R is never responsible for damage or loss until
20. ere burns e Apply cool not ice cold compresses using the cleansed available cloth article Do not break blisters remove tissue remove adhered particles of clothing or apply salve or ointment Apply clean dry dressing if necessary e Treat victim for shock as required Arrange transportation to a hospital as quickly as possible If arms or legs are affected keep them elevated User Manual Rev 0 1 04 02 05 3 26 TEX300 LCD 4 4 26 General Description The TEX300 LCD 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 300 W into a 50 Ohm standard load TEX300 LCD 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 TEX300 LCD 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 each other with male and female connectors or wi
21. his page was intentionally left blank 26 26 Rev 0 1 04 02 05 User Manual
22. if pulse is absent begin artificial circulation Figure 4 depressing sternum Figure 5 Rev 0 1 04 02 05 User Manual INAN TEX300 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 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 Keep them warm Keep them as quiet as possible Loosen their clothing a reclining position is recommended Call for medical help as soon as possible 3 2 Treatment of electrical Burns 3 2 1 Extensive burned and broken skin Cover area with clean sheet or cloth Do not break blisters remove tissue remove adhered particles of clothing or apply any salve or ointment e Treat victim for shock as required Arrange transportation to a hospital as quickly as possible 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 vomiting occurs LE DO NOT give alcohol 3 2 2 Less sev
23. me 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 LE 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 Lg 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 equipment is being shipped to R V R for repairs 2 Any unauthorized r
24. ous cargo able to dissipate the power generated by the TEX300 LCD 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 Itis 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 0 1 04 02 05 User Manual ELETA RIR TEX300 LCD 5 2 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 for a description of the various menus By using the switches and trimmer found on the rear panel set the characteristics impedance preemphasis and if its 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 especially if the machine is used as a modulator for a power amplifier Set the de
25. put 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 115 230 V 50 60 Hz Mains supply fuse RF output connector N Type BNC interlock out connector when exciter is in stand by mode the inner conductor usually floating become grounded DB9 connector for research all processed parameters of the RF section BNC interlock in connector the exciter is forced in stand by mode when the inner conductor is grounded DB9 connector for interconnections with extenal modem Trimmer for the control of the delivered power in function of the income FWD fold REMOTE connector Rev 0 1 04 02 05 15 26 TEX300 LCD 27 RFL EXT AGC Trimmer for the control of the delivered power in function of the income RFL fold REMOTE connector 28 REMOTE DB15 connector for telemetry of the machine 29 RS232 DB9 connector for interconnection with other devices and for factory parameters programming 30 SERVICE VOLTAGE SEL Mains voltage selector 115 230V 31 12C BUS DB9 connector for IC bus networking 32 SERVICE FUSE Service protection fuse 33 LEFT MONO MPX ADJ Adjustment trimmer for Left Mono channel input 34 LEFT MONO MPX XLR connector Left Mono channel input 35 FUSE 2 Mains supply fuse 16 26 Rev 0 1 04 02 05 User Manual INAN ELETA TEX300 LCD 6 3 Connectors description
26. sired power level from the predefined menu Activate the RF power output from the Fnc menu 5 3 Settings and calibration The only adjustments to be manually made on the TEX300 LCD 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 Figura 6 2 Trimmer Sensibilita Note RDS 10 11 20 13 dBm _ Input level for 2 0 kHz deviation 30 dB SCA1 9 12 8 13dBm_ Input level for 7 5 kHz deviation 20 dB SCA2 8 10 8 13 dBm Left 33 25 13 13 dBm Input level for 75 kHz deviation 0 dB Right 15 13 13 13 dBm 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 subcarriers you can use a similar procedure while getting help from the x10 option that can be selected from the
27. t 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 8 1 3 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 8 2 Panel board CPU The panel card contains the microcontroller PIC18F452 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 8 3 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 doesn t removed
28. th 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 TEX300 LCD reaches frequency lock within a maximum of 30 seconds TEX300 LCD 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 0 1 04 02 05 User Manual INAN TEX300 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 LEFT 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 version audio input and RF output connectors tel
29. ve to do is press the ESC push button again Nel caso che l allarme di temperatura fosse abilitato al superamento della soglia di allarme verra visualizzata la seguente schermata tt ATTENTION t OVER TEMPERATURE LE NOTA Questa schermata sar visualizzabile solo se si nella schermata predefinita User Manual Rev 0 1 04 02 05 9 26 TEX300 LCD INAN Switch on i i E Fai Eaa Esc Ero Fer F A Gat Tok rr Li i 4 Selection Menu ESC ENTER he ae Fobi DR Foki 3 Operation Menu Fnc bP ied rod Erli iz H Power Menu Pwr bire HS U Ifa me A Te Led Power Amp Menu P A FF Gid Wio Setting Menu Set IICI zs Miscellaneous Menu Mix PE iii ii Bat Fa 3 ao Sime Tab TEPL tie at Version Menu Vrs F Channels Menu L amp R HEI DH Cad bee FSK Menu FSK Figure 5 1 Figure 5 1 shows the complete set of the machine s menus 5 4 1 Operation Menu Fnc FFwr OH Hod x16 PaO 5S FoR I a Pwr Enabled On or disabled Off the power distribution of power from the exciter Mod Modification of the modulation visualization selectable between x1 and x10 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 PgD Modification of the Power Good threshold referred
30. ven in the Technical appendix in vol 2 8 1 Power Supply TEX300 LCD 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 22 26 Rev 0 1 04 02 05 User Manual RVR TEX300 LCD 8 1 1 Surge Protection This card contains two mains fuse accessible from outside figure 6 2 note 20 and 35 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 it is 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 rel placed on Surge card so PFC or rectifier units connect to it will be on voltage 8 1 2 PFC board rectifiers PFC units are rectifiers that modulates absorbed current so tha
Download Pdf Manuals
Related Search