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Technical Manual(INSTALLATION & USE)SERIES ETL0310 TELEVISION TRANSMITTERCMAN0310EuroTel S.r.l.Via Martiri della LibertàAngolo Via Beltrame20035 Lissone (MI), ItalyTel. 39 039 24361 – Fax 39 039 2436222E-Mail salesmail@eurotel.it – Web http://www.eurotel.it
EUROTEL – ITALYTV Transmitter ETL0310Series ETL0310 TELEVISION TRANSMITTER(INSTALLATION & USE)TABLE OF CONTENTS1.2.3.4.5.INTRODUCTION . 4SCOPE. 4TRANSMITTER CONFIGURATIONS. 4COMPOSITION . 4TECHNICAL SPECIFICATIONS . 5General . 5Video Input Parameters. 5Audio Input Parameters. 5I.F. Parameters. 5Output Parameters . 6Transmission Quality. 6Dimensions and Weight . 6EC (European Community) Certification and Type Approval . 66.FUNCTIONAL DESCRIPTION . 7General description . 77.TRANSMITTER CONFIGURATIONS & MODEL NUMBERS . 88.INSTALLATION . 9Stand Alone Mounting Procedure. 9Controls, Displays & Connectors (front panel) . 9Controls, Displays & Connectors (rear panel) . 11Enable IN/OUT DIN socket . 11D.C. power input socket (A.C.- D.C. equipment only). 11SERIAL DATA COM (RS-232) socket . 12SERIAL DATA RS-485 socket. 12E-LINK socket . 12Auxiliary control socket. 139.OPERATING PROCEDURES. 14First Time Operation for Stand Alone Transmitters . 1410.METERING POWER SUPPLY MODULE - MULTI-FUNCTION METERING DISPLAY . 14Alphanumeric LCD display description. 15First level menu description . 15Warning LED. 1611.ALIGNMENT AND MAINTENANCE INSTRUCTIONS . 16Procedure L.O.: Operation and set-up of Synthesised Local Oscillator MODM96B. 17Procedure A.G.C.-A.L.C.: Linearity pre-correction and the R.F. power output – Controller MODM33-6 . 18FIGURESFigure 1: Television Transmitter ETL0310 . 5Figure 2: Television Transmitter ETL0310 blocks diagram. 7Figure 3: Audio input connections. . 10Figure 4: Enable socket and connector. 11Figure 5: D.C. input socket . 11Figure 6: Serial Data Com in-out socket . 12Figure 7: Serial DataRS485 in-out socket. 12Figure 8: E-LINK in-out socket. 12Figure 9: ETL0310, rear panel of 4 W A class to 10W AB class models, A.C. mains only . 13Figure 10: ETL0310, rear panel of 10 W A class to 50 W AB class models, A.C. mains only . 14Figure 11: Blocks diagram for pre-correction set-up of TV Transmitters. 19TABLESTable 1: List of available products. 4Table 2: Transmitter modular components . 4Table 3: Product certification . 6Table 4: Model code number. 8Table 5: Codes for position “9”. 8Table 6: Examples of model code. 8Table 7: Front panel control & connection devices referred to Figures 1 . 9Table 8: Wiring of audio connector . 10Table 9: Rear panel connections . 11Table 10: Wiring to the Auxiliary Control socket. 13Nov 02CMAN0310ENG1
TV Transmitter ETL0310EUROTEL - ITALYTechnical ManualSeries ETL0310 Television TransmitterAMENDMENT RECORD SHEETWhen an amendment to this publication is incorporated, the record below is to be completed and APPROVAL RECORD SHEETWhen an approval to this publication is incorporated, the record below is to be completed.ReleaseSignatureAUTHORITYDATE EUROTEL S.r.l.The information contained herein is the property of EUROTEL S.r.l. and is supplied without liability for errors or omissions andno part may be reproduced, used or disclosed, except as authorized by contract or other written permission. The copyrightand the foregoing restriction on reproduction, use and disclosure extends to all media in which this information may beembodied, including magnetic or electronic storage, etc.WARNINGSObserve safety precautions when handling this unit. This equipment operates with dangerous voltages and currents.Always disconnect power before opening covers or removing any part or module of this unit.2CMAN0310ENGNov 02
EUROTEL – ITALYTV Transmitter ETL0310FIRST AID IN CASE OF ELECTRIC SHOCKDO NOT TOUCH THE VICTIM WITH YOUR BARE HANDS until the circuit is broken. SWITCH OFF. If this is not possible, PROTECTYOURSELF with DRY insulating material and pull the victim clear of the conductor. If breathing has stopped, indicated byunconsciousness, lack of respiratory movements and a ‘blue’ look to cheeks, lips, ears and nails, START RESUSCITATION AT ONCE.EMERGENCY RESUSCITATION: EXPIRED AIR METHODIf possible, lay the victim on his back, with his head slightly higher than his feet. Clear the mouth and the throat of any obviousobstruction.Kneel on one side of the victim, level with his head. LIFT THE JAW AND TILT THE HEADBACK AS FAR AS POSSIBLE. (Figures 1 and 2).One of the following may now happen: Breathing may begin and consciousness return. Breathing may begin, but consciousness may NOT return. Turn the victim on hisside and ensure that the airway is kept clear. Breathing may return, but be NOISY, which means that the airway is not fullyclear. Try to clear the airway.If there is no sign of breathing:Fig 1Fig 2Check that the head is still tilted back.Take a deep breath. Pinch the victim’s nose and blow firmly into his mouth. As you do, his chestwill RISE (Figure 3).Turn your head away and take another breath, watching for the chest to FALL (Figure 4).Start with four quick deep breaths and then continue with one breath every five seconds (i.e. 12times a minute). This should be continued until the victim revives or a doctor certifies death.Fig 3As consciousness returns, the victim will start to breathe on his own and a ‘pink’ colour replacesthe ‘blue’ look. This is the time to stop resuscitation. Continue to hold his chin up and so keepthe airway clear.In the case of injuries to the mouth, it may be necessary to use mouth-to-nose resuscitation.Seal the victim’s mouth with your cheek and blow firmly into his nose, proceeding as above.In any case, it is ESSENTIAL to commence resuscitation WITHOUT DELAY and to send formedical assistance immediately.Fig 4TREATMENT FOR BURNSIf the victim is also suffering from burns, then, without hindrance to resuscitation, observe the following: Do not attempt to remove clothing adhering to the burns. If possible, alleviate the pain from the burn part by immersing in cold water. If help is available or as soon as resuscitation is no longer required, the wound should be covered with a DRY cleandressing. Oil and/or grease, in any form, SHOULD NOT be applied. If severely burnt, get the victim to hospital immediately.Nov 02CMAN0310ENG3
TV Transmitter ETL03101.EUROTEL - ITALYINTRODUCTIONThe Series ETL0310 Television (TV) Transmitter receives at its inputs Video and Audio programme signals, processes them at standardI.F. frequency, converts the I.F. signal to the desired transmitting R.F. channel and amplifies the R.F. signal to a power suitable forBroadcasting or for driving external high power Amplifiers. The TV Broadcasting Transmitter ETL0310 is supplied in two differentversions, depending on the band-pass R.F. output filter. If the Transmitter is to be connected directly to the transmitting antenna, the unitis supplied with a band-pass filter installed into the chassis (UHF) or outside the chassis (VHF). In this case the model has a TX suffix,as explained in Section 7. If the Transmitter is used as Exciter for higher power stages, then the band-pass filter is omitted. A completeselection of options, covering R.F. output, band of operation, TV standards and power supplies, together with ordering information, isgiven in Section 7.2.SCOPEThe scope of this manual is to provide information on the use and operation of the Series ETL0310 TV Transmitter. This manual coversall Transmitters having outputs in Band III VHF and Bands IV & V UHF. Most of the present information can be used also forTransmitters having outputs in Band I VHF. The technical information available for the ETL0310 Series Transmitters is given in twoTECHNICAL MANUALS. The first MANUAL, concerns “INSTALLATION & USE”, while the second MANUAL, “TECHNICAL DATA”,provides in-depth technical information, such as special alignment procedures, schematic diagrams, parts layouts and parts lists. Unlessa special order is made, only the “INSTALLATION & USE” handbook is normally shipped with the equipment.3.TRANSMITTER CONFIGURATIONSDepending on the R.F. Amplifiers installed after the Up-Converter, several power outputs and performance configurations are possible,according to the final application. Class “A” equipment has been designed to drive higher power external R.F. Amplifiers, either solidstate or tube. With class “A” Exciters, most of the pre-correction operational margin can be used to compensate for the distortion of theR.F. Amplifiers being driven. Class “AB” equipment, delivering higher power in the same size, is better suited for stand-alone operationwith direct connection to the transmitting antenna. In this case the built-in pre-correction is used to compensate the internal R.F.Amplifiers.Table 1: List of available productsDESCRIPTION4.BANDR.F. WCLASSUHF TV TransmitterIV-V4“A”MOE138AAR.F. MODULESETL0310TA.MODELUHF TV Superdriver TransmitterIV-V10“A”MOE138NA MOE140AETL0310TC.UHF TV TransmitterIV-V50“AB”MOE138NA MOE140CETL0310TH.VHF TV TransmitterIII10“A”MOE155AETL0310TF.VHF TV TransmitterIII50“AB”MOE155CETL0310TG.VHF TV TransmitterI10“A”MOE156AETL0310TR.VHF TV he Series ETL0310 TV Transmitter consists of seven plug-in modules mounted in a standard 3 U 19” rack cabinet. In addition to theseven plug-in modules, the R.F. Power amplifier(s) are mounted on a heat sink on the rear panel, and a switch mode Power Supply ismounted on the cabinet wall. The plug-in modules are interfaced by a motherboard through 96-pin type connectors on each card,equipped, when necessary, with coaxial sockets. The other modules are hard wired into the chassis. All the available modules areshown below.Table 2: Transmitter modular componentsNORMAL CONFIGURATION MODULESVideo ProcessorSound ModulatorVision ModulatorA.G.C. - A.L.C. ControllerSynthesized Local OscillatorUp ConverterMetering & Power Supply Unit ( 5 V, 15 V)Switch Mode Power Supply Unit for R.F. AmplifiersNOTES(*)(*)(*)(*)(*)(*)(*) (**)(**)UHF BIV-VMODM23AMODM25AMODM24BMODM33-6MODM 96BMODM41BMODM206MOE104A10VHF 3MODM206MOE104A10OTHER AVAILABLE MODULESIRDETO system, scrambler adapterDC fed Power Supply ( 5 V, 15 V, V for R.F.Amplifiers)Metering (to be used with DC fed Power Supply)NOTES(****)(***)UHF BIV-VMOE77MOE107VHF BIIIMOE77MOE107MODM27-4MODM27-4* Plug in module.4** A.C. fed configuration.(***)*** D.C. fed configuration.CMAN0310ENG**** Plug-in extender type circuit board.Nov 02
EUROTEL – ITALYTV Transmitter ETL0310Figure 1: Television Transmitter ETL03105.TECHNICAL SPECIFICATIONSGeneralPrimary power.230/240/127/110 V a.c. 15%, 47 to 60 HzPower options . 24 V d.c. 20%, -10%. 48 V d.c., 20%Power consumption .100W max. full power, 40W max., st-by(4 W analog and 2W digital RF output power models).200W max. full power, 40W max., st-by(10 W analog and 4W digital RF output power models).250W max. full power, 40W max., st-by(50 W analog and 20W digital RF output power models)Operating temperature range.0 C to 45 C.Storage temperature range.-10 C to 70 C.Protections & alarms (depending on model).Over voltage (crowbar), over-current,high HS temperature, excessive reflected power,low output power.Video Input ParametersNumber of inputs.2 with automatic switchCross talk attenuation between inputs . 56 dB up to 5 MHzInput signal level .1 V p.p.Input manual gain adjustment. 3 dBInput impedance .75 Ω, unbalancedInput return loss . 30 dBVideo clamping .Sync tip or back porch selectableWhite clipping set at.95% of modulation depthAudio Input ParametersNumber of inputs.2 with automatic switchInput signal level . 8 dBU at 50 KHz pk. dev.Input manual gain adjust. 10/-3 dBInput impedance .600 Ω or 3 kΩTest tone nominal frequency.400 HzI.F. ParametersVision Intermediate Frequency . 38.9 MHz or as per Standard specified.I.F. Filter.SAW acoustic device.Different specifications.EuroTel can provide most TV Standards.Nov 02CMAN0310ENG5
TV Transmitter ETL0310EUROTEL - ITALYOutput ParametersOutput frequency range .BANDS IV-V: 470-860 MHzBAND III: 174-250 MHzBAND I 47-90 MHzOutput impedance.50 ohm, unbalancedVideo S/N unified weighted. 62 dBAudio S/N ratio. 60 dB @ 50 KHz deviationPermissible VSWR. 1.5In-band Intermodulation Products. 60 dBc (-8,-10,-16 dB) @ rated outputSpurious suppression . 60 dBHarmonic suppression . 60 dBLong term output frequency stability . 0.5 PPM / 6 monthsTransmission QualityDifferential Gain error. 3%Differential Phase error . 3 Luminance non-linearity. 5%ICPM . 3 Video Amplitude/freq. response. 0.5 dB within the vision bandGroup Delay tolerance . 30 nsAudio Distortion. 0.5 % at 1kHzAudio Amplitude freq. response. 0.5 dB, 40Hz to 15KHzDimensions and WeightDimensions .Std. 19” frame, 482 W x470 D x 135 H, mm.Weight for 2 W output models.12 kg. approx.Weight for higher power output models .15 kg. approx.EC (European Community) Certification and Type ApprovalThe ETL0310 TV Transmitter family conforms to Norm prETS 300-339, for TV Broadcasting, according to European Council Directive89/336/EEC and to the Italian Legislative Decree N 476/1992. This Equipment has obtained the relevant Official Certificate ofconformance N EMC/97/046 of 07-04-97.The following table lists the type approvals for the various models of the family and the relevant certificate numbers as of March 1999.Where the “Certificate” position has not been filled in, the equipment is in the process of being certified. For an up to date situationplease contact EuroTel.Table 3: Product certificationModel6Frequency bandR.F. Power W10CertificateETL0310TF VHF Band IIIETL0310TA UHF Band IV-V40003543 of 8/2/99ETL0310TB UHF Band IV-V100003550 of 8/2/99ETL0310TC.UHF Band IV-V100003549 of 8/2/99CMAN0310ENG0003541 of 8/2/99Nov 02
EUROTEL – ITALY6.TV Transmitter ETL0310FUNCTIONAL DESCRIPTIONGeneral descriptionThe Series ETL0310 Television (TV) Transmitter accepts at its input the Video programme signal and the Audio programme signal. TheVideo signal amplitude modulates the I.F. (Intermediate Frequency) Vision Carrier. The Audio signal frequency modulates the I.F. SoundCarrier. The Vision and Sound I.F. carrier signals are then combined in the Vision Modulator module. The composite signal is processedin the A.G.C. - A.L.C. Controller module and then converted to the specified output frequency by the Up Converter module. Output canbe any standard TV Channel in Band IV-V, in Band III or Band I.Signals Video 1 IN and Video 2 IN enter the Video Processor module where a detector looks for the presence of Video 1. The detectorgenerates two signals labelled Command -1 and Command -2 which are used in the Audio section to select the Audio 1 or Audio 2inputs of the Sound Modulator module.Signals Audio 1 IN and Audio 2 IN are connected to the input of the Sound Modulator module where they are selected by means of thecommand signals generated by the Video Processor module, as described above.MODM23AMODM24BMODM41Video 1 INVideo 2 INVideoProcessorVisionModulatorUpConverterAudio 1 INAudio 2 INSoundModulatorA.G.C. - 96BR.F.AmplifierAdditional R.F.AmplifiersBand-passFilterR.F. OutputR.F. OutputOnly in stand-alone transmittersFigure 2: Television Transmitter ETL0310 blocks diagramThe Sound Modulator module also receives the 38.9 MHz (or the vision frequency specified by the standard in use) reference signalcoming from the Vision Modulator, and sends the I.F. Sound Carrier output signal to the Vision Modulator module where it is added tothe I.F. Vision Carrier. The tone On/Off switch located on the front panel of the module is used to enable or disable an internal 400 Hztest tone generator. The Sound Modulator generates D.C. metering signals for Sound level and for Sound carrier deviation, which aresent to the metering unit, for display on the front panel analogue meter.The Vision Modulator module receives the Video signal coming from the Video Processor and the Sound Carrier coming from the SoundModulator. The Video signal amplitude modulates the I.F. Vision carrier. Finally the composite I.F. signal made with the modulatedSound and Vision carriers is sent to the A.G.C. - A.L.C. Controller module. The Carrier frequency IN/OUT socket can be used as monitorof the internal oscillator or as external oscillator input.The I.F. frequency PLL high stability circuit receives the 5 MHz reference frequency from the Local Oscillator Synthesiser module andlocks the I.F. Vision carrier generator of the Vision Modulator module to the reference of the Synthesised Local Oscillator. Therefore allcarrier frequencies within the Transmitter are locked to a single reference.The I.F. signal output from the Vision Modulator module enters the A.G.C. - A.L.C. Controller module that incorporates several signalprocessing circuits and devices, as follows : The A.G.C. section keeps the I.F. level in the A.G.C. - A.L.C. Controller module constant. The A.L.C. section keeps the output R.F. signal at constant level by varying the amount of I.F. signal fed to the Up Convertermodule. Switches A.G.C. / m.g.c and A.L.C. / m.l.c. are used for testing and alignment. Switch PREC. ON/OFF controls the insertion of the linearity pre-corrector for the output stages. Pre-correction is made at I.F.frequency. Screwdriver controls directly accessible from the front panel of the A.G.C. – A.L.C. Controller allow easy adjustment of the R.F.output power, either in manual mode (open loop) or in A.L.C. mode (closed loop).After this processing, the I.F. signal leaves the A.G.C. - A .L.C. Controller module and enters the Up Converter module, which alsoreceives the appropriate conversion signal from the Local Oscillator module at a frequency above the transmitted vision carrierfrequency. The difference between conversion signal and transmitted vision frequency is the value of the I.F. frequency specified by thestandard in use.The R.F. OUT signal output from the Up Converter Module is sent to the R.F. Amplifier stages. The basic Transmitter has a poweroutput of 4 W. Different R.F. Amplifier modules are installed to achieve the required power output. Amplifiers are based on LDMOStechnology.An output band-pass filter is supplied if the Transmitter is specified for stand-alone operation, (without an external R.F. output amplifier).The A.C. ONLY mains fed Transmitter has a Power Supply arrangement that works as follows: the On/Off switch on the front panel turnsthe equipment on by controlling the A.C. input to the mains transformer and a green LED is lit when the mains voltage is enabled. Thistransformer feeds rectifiers that provide raw D.C. power to two different power supplies. The first supply is the Metering - Power Supplymodule that provides the 5 V and 15 V D.C. The second supply module is a Switch Mode Power Supply that generates the D.C.voltage needed by the R.F. power amplifiers.Nov 02CMAN0310ENG7
TV Transmitter ETL0310EUROTEL - ITALYThe A.C. - D.C. fed Power Supply option allows operation from 220/230 V mains as well as 24 V D.C. or 48 V D.C. (depending onoption). In this case the input D.C. voltage is used by a switch mode power supply to generate the 5 V, 15 V and the D.C. voltageused by the R.F. Amplifiers. The ON/OFF switch on the front panel controls the A.C. & D.C. input power. A yellow LED indicator turns onwhen the ON/OFF switch is enabled.The metering unit is used to monitor signals and supply voltages and provides the following additional features. Protection against excessive R.F. drive to the final R.F. Power Amplifier. Protection to the final R.F. Power Amplifier for excessive reflected power. Alarm for low output power.Additionally, alarms corresponding to the above conditions are also provided, by means of hard-wired relay contacts, to the AuxiliaryControl Connector located on the rear apron of the Transposer.7.TRANSMITTER CONFIGURATIONS & MODEL NUMBERSThe model number of the ETL0310 Transmitter is a 15-position code as follows:Table 4: Model code onI.F.PLL12131415-TV Std.spareorspareorTXPositions 1 to 8 are fixed and never change.Position 9 specifies power output, band of operation and operating class of final R.F. Amplifier with the following letter code. Blankspaces are reserved to equipment on special order or under development.Table 5: Codes for position “9”Po WBandClassPosition 94UHF IV-V“A”A10UHF IV-V“A”C50UHF IV-V“AB”H10VHF III“A”F50VHF III“AB”G10VHF I“A”R50VHF I“AB”QPosition 10 defines type of frequency generation. EuroTel now only supplies Synthesised Local Oscillators as standard equip
VHF TV Transmitter III 50 “AB” MOE155C ETL0310TG. VHF TV Transmitter I 10 “A” MOE156A ETL0310TR. VHF TV Transmitter I 50 “AB” MOE156C ETL0310TQ 4. COMPOSITION The Series ETL0310 TV Transmitter consists of seven plug-in modules mounted in a standard 3 U 19” rack cabinet. In addition to the
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repair genes) in the datasets created in this research are as follows: ageing-related DNA repair genes‟ protein products tend to interact with a considerably larger number of proteins; their protein products are much more likely to interact with WRN (a protein whose defect causes the Werner‟s progeroid syndrome) and XRCC5 (KU80, a key protein in the initiation of DNA double-strand repair .
