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R.V.R. ELETTRONICA S.r.l. (BO)

Pag. 42

VJ3000 - Technical and Maintenance Manual

SECTIONAL VIEW OF THE POWER

SUPPLY P2 (FIG.8A)

THREE-PHASE VERSION

1

....................

Threephase power connector block (MORS1)

2

....................

A.C. driver output connector block (MORS2)

3

....................

Anode supply bridge rectifier (D3, D4, D5, D6, D7
and D8)

4

....................

High voltage capacitor discharge resistor (R10,
R11, R12 and R13)

5

....................

Anode supply transformer

6

....................

High voltage anode supply filter capacitor (C3)

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Summary of Contents for VJ3000

Page 1: ...M a n u f a c t u r e d b y R V R E l e t t r o n i c a I t a l y T E C H N I C A L A N D M A I N T E N A N C E M A N U A L MANUALETECNICOEDIMANUTENZIONE VJ3000...

Page 2: ...ETTRONICA S r l BO Pag 2 VJ3000 Technical and Maintenance Manual VJ3000 3KW Power Triode Amplifier 87 5 108 MHz Technical and Maintenance Manual Manuale Tecnico e di Manutenzione English Pag 3 Italian...

Page 3: ...g 28 Front Meter Panel View Description Pag 29 Front Meter Panel View Fig 3 Pag 30 Front Tuning Panel View Description Pag 31 Front Tuning Panel View Fig 4 Pag 32 Front and Rear Protection Panel View...

Page 4: ...11 Pag 53 R F Cavity s Left Side View Description Pag 54 R F Cavity s Left Side View Fig 12A Pag 55 R F Cavity s Top View Description Pag 56 R F Cavity s Top View Fig 12B Pag 57 SECTION3 Tube Install...

Page 5: ...cedure of Modules Pag 78 Setup 4 Pag 82 Setup 5 Pag 83 Setup 6 Pag 84 Setup 7 Pag 85 Setup 8 Pag 86 Setup 9 Pag 87 APPENDIXA Circuit Diagram Bills of Material and Layouts Pag 174 Protection Card Pag 1...

Page 6: ...opening covers or removing any part of this unit Use appropriate grounding procedures to short out capacitors and high voltage points before servicing Any damage to the goods must be reported to the c...

Page 7: ...eal the package perfectly The customer always assumes the risks of loss i e R V R is never responsible for damage or loss untill the package reaches R V R premises For this reason we suggest you to in...

Page 8: ...24 MONTHS 12 MONTHS 3 000 HOURS K 24 MONTHS 12 MONTHS 1 000 HOURS L LIFE TESTED AT FACTORY IN LIEU OF AN OTHER WARRANTY 12 24 MONTHS 12 MONTHS The last category is for hardware or accessory items whe...

Page 9: ...Distributor or OEM from whom purchased should be notified in case there are some special instructions All products returned on a warranty claim must be shipped via prepaid freight and include a comple...

Page 10: ...nd Maintenance Manual WARRANTY OF THE DIFFERENT TYPE OF TUBES MODEL MOUNTH HOURS CODE 3CX800A7 12 3 000 N 3CX1500A7 12 3 000 N 3CX3000A7 12 5 000 R 3CX15000A7 12 3 000 N 4CX3500A 12 5 000 R 4CX5000A 2...

Page 11: ...by qualified personnel exercising due care R V R ELETTRONICA s r l shall not be responsible for injury or damage resulting from improper procedures or from the use of improperly trained or inexperien...

Page 12: ...VE FOR BREATHING 4 QUICK FULL BREATHS REMEMBER MOUTH TO MOUTH RESUSCITATION MUST BE COMMENCED AS SOON AS POSSIBLE C C I R C U L A T I O N CHECK CAROTID PULSE DEPRESS STERNUM 1 1 2 TO 2 IF PULSE ABSENT...

Page 13: ...required d Arrange transportation to a hospital as quickly as possible e If arms or legs are affected keep them elevated NOTE If medical help will not be available within an hour and the victim is con...

Page 14: ...00W The amplifier features motorised matching of the anode load and input circuits allowing coverage of the entire frequency band The VJ3000 has been designed to use a Monophase supply Threephase on r...

Page 15: ...ure panel open insufficient ventilation and high voltage supply inactive Two bicolor leds red green are situated on this panel indicating excess grid current together with two indicators which indicat...

Page 16: ...87 5 108Mhz others on request Output Power 3500W max 3000W typically R F Output Impedance 50 Ohm R F Output Connector 7 8 EIA Flange R F Input Impedance 50 Ohm R F Input Connector N type RF Drive Powe...

Page 17: ...Maintenance Manual TABLE B MECHANICAL SPECIFICATIONS Rack Dimensions 22 24 565 mm W 33 46 850 mm D 48 00 1220 mm H Panel Dimensions 19 483 00 mm W 42 1066 8 mm H Weight 770 Lbs 350 Kg Operating Temper...

Page 18: ...onitoring anode current 6 Fig 7 the IG TRIODE card for monitoring grid current 4 Fig 7 the PLATE MEASURE card for monitoring anode current 5 Fig 7 and the A C Control Line 13 Fig 7 It is possible to p...

Page 19: ...citors C2 and C3 for the anode supply 6 Fig 8C a diode bridge D3 D4 D5 D6 D7 and D8 for rectifying the anode supply 3 Fig 8C Other components are situated on the diode bridge support four resistors R1...

Page 20: ...lizer is a single phase design fitted inside the unit with connector blocks for the input eand output Fig 15 It comprises a variac AT a series transformer TS a servo motor S and a control circuit C Th...

Page 21: ...iable capacitors C6 is connected to the load tuning motor M3 LOAD and C34 which is used to aid low frequency tuning The socket is situated in the bottom section into which the tube is inserted In this...

Page 22: ...g Forced ventilation Filament voltage 7 5V Filament current 51 5A Capacity with grounded cathode Input 38 0 pF Output 0 60 pF Feed through 24 0 pF Capacity with grounded grid Input 38 0 pF Output 24 0...

Page 23: ...23 VJ3000 Technical and Maintenance Manual FRONT AND REAR VIEW FIG 1A 1 Free panels 6U 2 Meter panel 3 Tuning panel 4 Protections panel 5 High voltage panel 6 Front air filter panel 7 Blower air filt...

Page 24: ...R V R ELETTRONICA S r l BO Pag 24 VJ3000 Technical and Maintenance Manual FIG 1A...

Page 25: ...R V R ELETTRONICA S r l BO Pag 25 VJ3000 Technical and Maintenance Manual TOP VIEW FIG 1B 1 Air flow chimney 2 R F output connector...

Page 26: ...R V R ELETTRONICA S r l BO Pag 26 VJ3000 Technical and Maintenance Manual FIG 1B...

Page 27: ...R V R ELETTRONICA S r l BO Pag 27 VJ3000 Technical and Maintenance Manual TOTAL VIEW FIG 2 1 R F Chamber 2 Inductance 3 Power supply P1 section 4 Power supply P2 section 5 Blower 6 Air flow chimney...

Page 28: ...R V R ELETTRONICA S r l BO Pag 28 VJ3000 Technical and Maintenance Manual FIG 2 1 3 5 4 2 6...

Page 29: ...of the zero point of the grid current Ig meter 5 ANODE CURRENT Mechanical adjustment of the zero point of the anode current meter 6 DIR REF Switch to select the measurement of direct or reflected pow...

Page 30: ...R V R ELETTRONICA S r l BO Pag 30 VJ3000 Technical and Maintenance Manual FIG 3...

Page 31: ...FRONT TUNING PANEL FIG 4 1 INPUT Press button INPUT for tuning of the input circuit 2 LOAD Press button for tuning the load 3 SWITCH Switch enabling the tuning motors 4 PLATE Press button PLATE for t...

Page 32: ...R V R ELETTRONICA S r l BO Pag 32 VJ3000 Technical and Maintenance Manual FIG 4...

Page 33: ...button displays on the two left hand digits the percentage of time that has passed during the pre warming of the filament If kept pressed for more than 30 seconds the high voltage is enable in advanc...

Page 34: ...s been rotated to the DISCONNECT position and that protection will be disabled for about 1 minute 23 PWR FWD Forward power connector 24 PWR RFL Reflected power connector 25 TEMP Temperature probe conn...

Page 35: ...R V R ELETTRONICA S r l BO Pag 35 VJ3000 Technical and Maintenance Manual FIG 5...

Page 36: ...hours that the unit has been operational 4 SELECTOR ST BY H V selector 5 INDICATOR H V ON Red indicator showing the presence of high voltage 6 INDICATOR PHASE R Indicator showing the presence of the R...

Page 37: ...R V R ELETTRONICA S r l BO Pag 37 VJ3000 Technical and Maintenance Manual FIG 6...

Page 38: ...3 3 Grid current sensing resistor R6 4 IG Triode card 5 Plate Measure card 6 Anode current sensing resistor R9 7 Main services transformer T1 8 Polarization filament resistor R1 9 Anode supply anti fl...

Page 39: ...R V R ELETTRONICA S r l BO Pag 39 VJ3000 Technical and Maintenance Manual 1 2 3 4 5 6 8 7 9 14 13 12 11 10 FIG 7A...

Page 40: ...diode bridge D13 3 Main services transformer T1 4 Solenoid switch TE1 for filament voltage 5 Solenoid switch TE2 for HT1 6 Solenoid switch TE3 for HT2 7 Anode current sensing resistor R9 8 Plate Measu...

Page 41: ...R V R ELETTRONICA S r l BO Pag 41 VJ3000 Technical and Maintenance Manual 1 2 3 4 5 6 7 8 11 10 9 12 13 FIG 7B...

Page 42: ...Y P2 FIG 8A THREE PHASE VERSION 1 Threephase power connector block MORS1 2 A C driver output connector block MORS2 3 Anode supply bridge rectifier D3 D4 D5 D6 D7 and D8 4 High voltage capacitor discha...

Page 43: ...R V R ELETTRONICA S r l BO Pag 43 VJ3000 Technical and Maintenance Manual 6 3 4 5 13 1 2 FIG 8A...

Page 44: ...R V R ELETTRONICA S r l BO Pag 44 VJ3000 Technical and Maintenance Manual TRHEE PHASE VOLTAGE INPUT SOCKET FIG 8B...

Page 45: ...MONO PHASE VERSION 1 Monophase power connector block MORS1 2 A C driver output connector block MORS2 3 Anode supply bridge rectifier D3 D4 D5 and D6 4 High voltage capacitor discharge resistor R10 R11...

Page 46: ...R V R ELETTRONICA S r l BO Pag 46 VJ3000 Technical and Maintenance Manual 7 6 4 5 FIG 8C 3 2 1...

Page 47: ...R V R ELETTRONICA S r l BO Pag 47 VJ3000 Technical and Maintenance Manual MONO PHASE VOLTAGE INPUT SOCKET FIG 8D...

Page 48: ...cal and Maintenance Manual R F CAVITY FRONT VIEW FIG 9 1 Variable capacitor C5 moving surface with fingers 2 Variable capacitor C6 LOAD 3 Variable capacitor C34 for tuning at low frequency if present...

Page 49: ...R V R ELETTRONICA S r l BO Pag 49 VJ3000 Technical and Maintenance Manual FIG 9 1 6 3 2 5 4...

Page 50: ...tenance Manual R F CAVITY REAR VIEW FIG 10 1 Filament Transformer T5 2 Deviding Transformer T4 3 Cooling blower FAN1 4 Circular connector 28 pin J1 5 Circular connector 28 pin J2 6 Tuning motor INPUT...

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