R.V.R. Elettronica 4CX7500, Technical Manual

Page: 51 / 82

Date: 25/07/03 R.V.R. Elettronica S.r.l. (BO) VJ10000-TE - R.F. Tube Amplifier
51
TABLE D - MEASURE TESTS CARD
Model VJ10000-TR Volt Fil. Current
Fil.
VA IA VG1 IG1 VG2 IG2
I° STEP input 4.58 V AC 3.36 V AC 172 mv - - - - -
II° STEP input 7 V 6.04 V AC 190 mv 256 mV 549 mV 150 A 575
mV
446 mA
I° STEP Out Test
Point 2.473 V 2.665 V
DC
3.5 V - - - - -
II° STEP Out Test
Point 3.9 V 2.9 V DC 3.9 V 3.9 A 3.9 V 3.9 A 3.9 V
DC
3.9 V
DC
I° STEP Strument
Measure 4.4 V 86 A 7000 V
DC
- - - - -
II° STEP Strument
Measure 7 V 110 A 7500 V
DC
2.5 A -184 V 30 mA 760 100 mA
I° STEP LCD
Measure 4.5 V 100 A 7 KW - - - - -
II° STEP LCD
Measure 7 V 110 A 7.5 KW 2.5 A - 177 V 30 mA 758 101 mA
I° STEP Fluke
Measure - - - - - - - -
II° STEP Fluke
Measure - - - - - - - -
On the measure card there are n°2 trimmer P18 corresponding to VG1 voltage presence and
P19 for VA voltage presence.
These two trimmers set the thresholds for the VG1 and IA voltage presence on the
equipment.
Once that is been verified the voltages presence, the relays are closed to enable the
protection box and leds D17 and D19 are light on to signal the controlled voltage presence.
In case that on the equipment is installed a triode tube, the checking of the VG1 is excluded
because this voltage is created automatically when the tube is in power and is created
inserting the jumper JP14 to have a short circuit so that the starting sequence is ok,
otherwise the equipment never go in high tension.