R.V.R. Elettronica VJ2000, User Manual

Page: 31 / 110

VJ2000
25 / 44 USER MANUAL Rev. 4.0 - 26/02/01
6. Installation Procedure
6.1 Introduction
This chapter contains information necessary for the installation and initial testing of the
VJ2000 amplifier.
6.2 Unpacking
Remove the unit from its packing and, before any other operation, ensure that the unit
has not suffered any damage in transit and that all its front panel controls are useable.
6.3 Fitting the Tube
To fit the tube follow the following instructions:
1) Unscrew the screws holding the high voltage front panel (22 Fig.1) and open it.
2) Check with care that the tube’s pins are correctly aligned with its socket.
3) Insert the tube into its socket, pressing lightly and first rechecking the correct alignment
of the pins.
4) Check that the tube is fully home in its socket, verifying the correct fit of the grid ring.
5) Shut the high voltage panel and re-fit all the screws.
6.4 Connection and Setup Procedures
To connect the unit, follow the following instructions:
1) Remove the rear panel.
2) Connect a cable of suitable dimensions (the unit can draw up to 20A) to the power input
connector block.
3) Connect the exciter supply cable to the corresponding connector block, taking care to
connect the earth (ground) to its correct connector.
4) Connect a 50 Ohm coaxial cable (type RG 213) fitted with an "N" type male connector
to the input connector.
5) Connect an antenna or a dummy load with an impedance of 50 Ohm to the output
connector type 7/8" (7/16" or LC on request).
Ensure that the coaxial cable has an impedance of 50 Ohm and that it can handle a
continuous power of at least 2000 Watts.
6) After having connected the 220 V driver supply and an RF output connector to the
driver, switch the VJ2000’s POWER switch to OFF and the ST.BY. switch to ON.
7) Adjust the exciter power output control to minimum power.