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Elenos T25000, Handbook

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Elenos T25000 Handbook Download Page 28

Hand Book    T25000   -  

28

Technical Office  TEL: +39 532 829 965   FAX: +39 532 829 177

Sheet # 1

Summary of Contents for T25000

Page 1: ...BROADCAST EQUIPMENT Via G Amendola 9 44028 Poggio Renatico Ferrara Italy Tel 39 532 829 965 Fax 39 532 829 177 E mail info elenos com support elenos com Web Site http www elenos com...

Page 2: ...2 829 965 FAX 39 532 829 177 The constructor reserves the right to modify the information in this manual at any time without advising update 2000 Elenos S r l Printed in Italy Cod MAN0034 21 10 1996 P...

Page 3: ...SSION SYSTEM 19 TUNING INSTRUCTIONS 20 OPERATIONAL LIMITS 22 PERIODIC MAINTENANCE 23 ADJUSTMENT OF THE FILAMENT VOLTAGE 24 REMARKS ON ELECTRICAL DIAGRAMS 25 LINE VOLTAGE DIAGRAM CONNECTION 26 PART LIS...

Page 4: ...20127 45 Electrical diagram E20127 1 of 6 46 Part list E20127 52 Layout E20128 61 Electric diagram E20128 62 Part list E20128 63 Layout E20131 64 Electric diagram E20131 65 Part list E20131 66 E20138...

Page 5: ...ssion of frequency modulation total deviation 150 KHz using a thermionic tube in an amplifying cavity with adjustable input and output frequency tuning Conceived as the final stage in a transmission s...

Page 6: ...Hand Book T25000 6 Technical Office TEL 39 532 829 965 FAX 39 532 829 177...

Page 7: ...CURRENT IA TYP 1 9A 4A ANODE CURRENT IA MAX 4 3A GRID CURRENT IG TYP 200 Ma 500 mA GRID CURRENT IG MAX 1A BIAS VOLTAGE TYP V BIAS 35 200V FILAMENT VOLTAGE range V FIL 6 1 6 4V R F CAVITY TEMPERATURE T...

Page 8: ...d in order to extend the life of the thermionic tube if the RF power required is less than the nominal value see technical notes on the filament The high voltage anode power supply 7500 volts DC is ge...

Page 9: ...potentiometers located on the card E20131 x behind the front panel see circuit diagrams 2 V HT selects the reading of the anode supply voltage 10KV f s d DC 3 V BIAS selects the reading of the cathod...

Page 10: ...by the anode circuits is too high If the impedance of the radiating system is incorrect or unstable it is possible that large fluctuations of grid current will be experienced with likely intervention...

Page 11: ...seconds the protection logic puts the transmitter into the ERRATIC VF protection state and repeats the preheating cycle TIMER ACTIVITY before restoring normal operation The principle causes of anomali...

Page 12: ...ter is located on the front panel which registers the number of hours that the unit has been connected to the line supply This provides useful information for the purpose of periodic maintenance A swi...

Page 13: ...Hand Book T25000 13 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 FRONT PANEL...

Page 14: ...edicated to the antenna structure Given the very low values of parasitic inductance of the connections to the T25000 the amount of electrical energy of atmospheric origin can only be partially control...

Page 15: ...e supply which MUST be respected In the absence of precise indications the section of cable should allow for a current density of not greater than 4A per square millimetre of conductor for example a 5...

Page 16: ...ety interlock system The RF connections are as follows the RF output of the modulator is connected to the RF input of the first intermediate stage the RF output of the first intermediate stage is conn...

Page 17: ...possible to cause permanent damage to the equipment Remove the top panel of the unit Remove the hot air exit flue above the amplifying cavity after having disconnected the thermal probe tied to the fl...

Page 18: ...taken with the connection to the radiating system as the principal cause of functional problems within the first few hours of operation is caused by an inefficient RF load The connection phase of the...

Page 19: ...on off switches of all the transmitter components of the system At this point the T25000 is ready to operate and follows the following start up sequence the following front panel indicators will ligh...

Page 20: ...iver s reflected power value Make adjustments to obtain the maximum relative power output of the final stage using the ANODE TUNING control top right and if necessary adjust the two controls INPUT TUN...

Page 21: ...s of ANODE TUNING top right to maximise the relative power output and thus the electrical efficiency of the T25000 These instructions refer to output tuning however it will be necessary during this pr...

Page 22: ...condensing If fluctuations in line voltage are very large the whole system should be adjusted taking account that the RF power output can exceed the safety limits of the equipment or the radiating sy...

Page 23: ...nic tube see chapter regarding filament voltage adjustment Every three months periodic alignment of the amplifier tuning is necessary to compensate for consumption of the thermionic tube This is essen...

Page 24: ...power level with the front panel open to allow adjustment of the low power trimmer potentiometer located on card E20127 x reference P6 2 Rotate the trimmer clockwise for 3 or 4 turns this will reduce...

Page 25: ...sarm the machinery and in order to tune the radio frequency amplifier cavity The electrical schemes have split up in two categories connection schemes between different unity and relative schemes of e...

Page 26: ...Hand Book T25000 26 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 LINE VOLTAGE DIAGRAM CONNECTION...

Page 27: ...et 2 Part List of Sheet 2 Sheet 3 Part List of Sheet 3 Sheet 4 Part List of Sheet 4 Sheet 5 Part List of Sheet 5 Sheet 6 Part List of Sheet 6 Sheet 7 Part List of Sheet 7 E20123 Part List of E20123 E2...

Page 28: ...Hand Book T25000 28 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Sheet 1...

Page 29: ...st of Sheet 1 Terminals array 1 6 contact 5 with fuse Terminals array 1 8 contact Main Switch 380 V 25 A Switch HT 1 400V 3 Phase 45 KW Switch HT 2 400V 3 Phase 45 KW T PROT 1 Thermal Protection 29A 3...

Page 30: ...Hand Book T25000 30 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Sheet 2...

Page 31: ...2 Bridge type KBPC250G D3 Bridge type KBPC250G D4 Bridge type KBPC250G D5 Bridge type KBPC250G D6 Bridge type KBPC250G D7 Bridge type KBPC250G D8 Bridge type KBPC250G D9 Bridge type KBPC250G D10 Bridg...

Page 32: ...Hand Book T25000 32 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Sheet 3...

Page 33: ...532 829 965 FAX 39 532 829 177 Part list sheet 3 R1A Wire Resistor 35x100 20 ohm R1B Wire Resistor 35x100 20 ohm R1C Wire Resistor 35x100 20 ohm Meas Tranf Transformer 1 1 20V 20V Filament Transforme...

Page 34: ...Hand Book T25000 34 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Sheet 4...

Page 35: ...t list sheet 4 MOV 1 MOV type S20K 275 MOV 2 MOV type S20K 275 MOV 3 MOV type S20K 275 MOV 4 MOV type S20K 275 MOV 5 MOV type S20K 275 MOV 6 MOV type S20K 275 MOV 7 MOV type S20K 275 MOV 8 MOV type S2...

Page 36: ...Hand Book T25000 36 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Sheet 5...

Page 37: ...7 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Part list sheet 5 PWR M eter100uAf s M 3D R PWR M eter100uAf s M 3D TEST M eter100uAf s M 3D IA M eter100uAf s M 3D IG M eter100uAf s M 3D S T...

Page 38: ...Hand Book T25000 38 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Sheet 6...

Page 39: ...22 pF C3 Ceramic F P Capacitor 1000 pF C4 Ceramic Capacitor 4700 pF C5 Ceramic F P Capacitor 1000 pF C6 Ceramic Capacitor 4700 pF C7 Ceramic F P Capacitor 1000 pF C8 Ceramic Capacitor 4700 pF C11 Cer...

Page 40: ...Hand Book T25000 40 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Sheet 7...

Page 41: ...ing Output Motor Motor type 36 10 5 Tuning Input Motor Motor type 36 10 5 Coupling Input Motor Motor type 1 61 013 325 Anode Tuning Switch Switch Togle 2 Way 3 Pos 131FL Anode Impedance Switch Switch...

Page 42: ...Hand Book T25000 42 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Layout E20123 3 Cathode bias and signals conveyor board...

Page 43: ...Hand Book T25000 43 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Electrical diagram E20123 3...

Page 44: ...12 Resistor 0 25W 49 9 1 R14 Resistor 5W 0 12 1 R15 Resistor 5W 0 12 1 P1 Trimmer type 67WR100 P2 Trimmer type 67WR100 C1 Ceramic Capacitor 100nF 63V C2 Ceramic Capacitor 100nF 63V C3 Ceramic Capacito...

Page 45: ...Hand Book T25000 45 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Layout E20127 General control board layout...

Page 46: ...Hand Book T25000 46 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Electrical diagram E20127 1 of 6...

Page 47: ...Hand Book T25000 47 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Electrical diagram E20127 2 of 6...

Page 48: ...Hand Book T25000 48 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Electrical diagram E20127 3 of 6...

Page 49: ...Hand Book T25000 49 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Electrical diagram E20127 4 of 6...

Page 50: ...Hand Book T25000 50 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Electrical diagram E20127 5 of 6...

Page 51: ...Hand Book T25000 51 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Electrical diagram E20127 6 of 6...

Page 52: ...100 0 25 W 1 R21 Resistor 1 M 0 25 W 1 R22 Resistor 34 K 0 25 W 1 R23 Resistor 100 0 25 W 1 R24 Resistor 1020 0 25 W 1 R25 Resistor 1020 0 25 W 1 R26 Resistor 100 0 25 W 1 R27 Resistor 1 M 0 25 W 1 R2...

Page 53: ...5 W 1 R77 Resistor 10 M 0 25 W 1 R78 Resistor 10 K 0 25 W 1 R80 Resistor 1 K 0 25 W 1 R81 Resistor 4750 0 25 W 1 R82 Resistor 10 K 0 25 W 1 R83 Resistor 10 K 0 25 W 1 R84 Resistor 10 K 0 25 W 1 R85 Re...

Page 54: ...25 W 1 R129 Resistor 100 K 0 25 W 1 R130 Resistor 10 K 0 25 W 1 R131 Resistor 10 K 0 25 W 1 R132 Resistor 10 K 0 25 W 1 R133 Resistor 475 K 0 25 W 1 R134 Resistor 150 K 0 25 W 1 R136 Resistor 150 0 5...

Page 55: ...5 R181 Resistor 10 K 0 25 W 1 R182 Resistor 6810 0 25 W 1 R183 Resistor 6810 0 25 W 1 R184 Resistor 10 K 0 25 W 1 R185 Resistor 10 K 0 25 W 1 R186 Resistor 10 K 0 25 W 1 R187 Resistor 10 K 0 25 W 1 R1...

Page 56: ...F 50V C32 Ceramic Capacitor 4 7 nF 50V C35 Ceramic Capacitor 4 7 nF 50V C36 Ceramic Capacitor 4 7 nF 50V C37 Ceramic Capacitor 4 7 nF 50V C38 Ceramic Capacitor 4 7 nF 50V C39 Ceramic Capacitor 4 7 nF...

Page 57: ...uF 63V C84 Ceramic Capacitor 4 7 nF 2KV C85 Electr Vert Capacitor 10 uF 35V C86 Electr Vert Capacitor 10 uF 35V C87 Electr Vert Capacitor 1000 uF 40V C88 Ceramic Capacitor 4 7 nF 50V C89 Electr Vert C...

Page 58: ...acitor 10 uF 35V C133 Ceramic Capacitor 100 nF 63V C134 Ceramic Capacitor 100 nF 63V C135 Ceramic Capacitor 100 nF 63V C136 Ceramic Capacitor 100 nF 63V C137 Ceramic Capacitor 100 nF 63V C138 Ceramic...

Page 59: ...type 1N4007 D47 Diode type 1N4007 D48 Diode type BY255 D49 Diode type 1N4007 D50 Diode type 1N4007 D51 Diode type 1N4007 D52 Diode type 1N4148 D53 Diode type 1N4148 D54 Diode type 1N4148 D55 Diode typ...

Page 60: ...r 2 pin RL1 Relay Finder type 40 31 RL2 Relay Finder type 40 31 RL3 Relay Finder type 40 31 CN1 ANSLEY connector 2x10 pin CN2 ANSLEY connector 2x10 pin CN3 ANSLEY connector 2x10 pin CN4 AMP connector...

Page 61: ...Hand Book T25000 61 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Layout E20128...

Page 62: ...Hand Book T25000 62 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Electric diagram E20128...

Page 63: ...K 0 25 W 1 R3 Resistor 49 9 0 25 W 1 C1 Paper Capacitor 0 1 uF 1000 V 5 MOV1 MOV type S20K 275 MOV2 MOV type S20K 275 MOV3 MOV type S20K 275 D1 Diode type P600K D2 Diode type P600K D3 Diode type P600...

Page 64: ...Hand Book T25000 64 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Layout E20131...

Page 65: ...Hand Book T25000 65 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Electric diagram E20131...

Page 66: ...istor 0 5W 330 5 R21 Resistor 0 5W 330 5 R22 Resistor 0 5W 330 5 R23 Resistor 0 5W 330 5 R24 Resistor 0 5W 330 5 R25 Resistor 0 5W 330 5 R26 Resistor 0 5W 330 5 R27 Resistor 0 5W 330 5 R28 Resistor 0...

Page 67: ...N4007 DL1 Led type HLMP 2685 DL2 Led type HLMP 2685 DL3 Led type HLMP 2685 DL4 Led type HLMP 2685 DL5 Led type HLMP 2685 DL6 Led type HLMP 2685 DL7 Led type HLMP 2685 DL8 Led type HLMP 2685 DL9 Led ty...

Page 68: ...Hand Book T25000 68 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 E20138...

Page 69: ...Hand Book T25000 69 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 Part list E20138...

Page 70: ...Hand Book T25000 70 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 E20144...

Page 71: ...177 Part list E20144 PCB1 Board E20144 0 D3 Diode type A12FR120 D4 Diode type A12F120 D5 Diode type A12FR120 D6 Diode type A12F120 D7 Diode type A12FR120 D8 Diode type A12F120 D9 Diode type A12FR120...

Page 72: ...Hand Book T25000 72 Technical Office TEL 39 532 829 965 FAX 39 532 829 177 E20139 Interface board optional...

Page 73: ...r 5mm 4 7 nF 50V C6 C7 Mylar capacitor 5mm 100 nF 63V C8 C9 C10 Ceramic Capacitor 5mm 4 7 nF 50V C11 Electrolytic vert capacitor 10 uF 35V D1 D4 Diode type 1N4148 D5 Diode type 1N4007 D6 D13 Diode typ...

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