R.V.R. Elettronica VJ3000 Bedienungsanleitung

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 51

VJ3000 - Technical and Maintenance Manual

FIG.10

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 52

VJ3000 - Technical and Maintenance Manual

2.................... Kapton capacitor (C19)

3.................... Input connector (P2)

4.................... Tuning motor Input (M2)

5.................... Tuning motor Grid (M1)

6.................... Circular connector 28-pin (J2)

7.................... Circular connector 28-pin (J1)

8.................... Filament transformer (T5)

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 53

VJ3000 - Technical and Maintenance Manual

8 7

234

FIG.11

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 54

VJ3000 - Technical and Maintenance Manual

R.F. CAVITY LEFT SIDE VIEW

(FIG.12A)

1.................... Tuning motor Input (M2)

2.................... Tuning motor Grid (M1)

3.................... Blower pressure switch (S3)

4.................... R.F. cavity output

5.................... Tuning motor Load (M3)

6.................... Rigid Line

7.................... Low pass output filter (LPF1)

8.................... Filament transformer (T5)

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 55

VJ3000 - Technical and Maintenance Manual

2 3

876

FIG.12A

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 56

VJ3000 - Technical and Maintenance Manual

R.F. CAVITY TOP VIEW

(FIG.12B)

1.................... Thread bars

2.................... Tuning motor Anode (M4)

3.................... Kapton capacitor (C4)

4.................... Low pass output filter (LPF1)

5.................... R.F. output connector (P4)

6.................... Air-flow chimney

7.................... Stop switch of the anode tuning

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 57

VJ3000 - Technical and Maintenance Manual

2 3

76 5

FIG.12B

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 58

VJ3000 - Technical and Maintenance Manual

FIRST TUBE INSTALLATION DIAGRAM (FIG.13)

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 59

VJ3000 - Technical and Maintenance Manual

SECOND TUBE INSTALLATION DIAGRAM (FIG.14)

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 60

VJ3000 - Technical and Maintenance Manual

SECTION 3

INSTALLATION

3.1 INTRODUCTION

This section contains the information necessary for the installation

and preliminary checks of the VJ3000 Triode amplifier.

3.2 UNPACKING

Remove the unit from its packing and, before anything else, ensure

that the unit has not suffered any damage during transit and that all

front panel controls are operational.

3.3 FITTING THE TUBE

To fit the tube, carry out the following procedure:

1) Connent the line power cables to the connector block situated low

down at the rear of the unit The supply voltage should be 380V (or

as requested), threephase plus neutral. Connect the unit to a good

earth. Connect a dummy load suitable power rating, or the antenna

itself, to the amplifier output.

2) Open the rear panel, undoing the fixing screws (Fig.13)

3) Remove the top panel of the rack together with the top of the aluminium

flue (with protective metal net)

4) Switch on the supply ensuring that the ST.BY/H.V. switch is in the

ST.BY. position.

5) Now enable the tuning bottons with the key switch and use the PLATE

key to raise the fingered panel to its upper limit. Now ensure that

power to the unit is disabled.

6) Now insert the tube wwith the silver-plated anode tube into the

fingered hole of the sliding panel.

The tube has two discs that should initially be held towards the

person fitting the tube. Once inserted into the fingers, the tube

should be rotated until the discs are parallel to the part of the

cavity that shows other two discs fixed on the cavity wall itself.

Now raise the tube to position A as shown in Fig.14 and keep it in

this position. Insert the valve tube, rotating it until the grid

ring mates perfectly with the ring of the socket. To ensure the

correct insertion of the valve tube, check that the grid

contact, that nearest the anode is completely inserted in the

fingers mounted on the socket panel (see Fig.14).

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