Skanti TRP 5000, Инструкция по эксплуатации

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Position of
CHECK SWITCH
Check of Deflection to
3 corresponds
to approx.
Actual deflection
V A
V s1
V S2
V G
I 1
I 2
V D
anode DC voltage
screen grid voltage
of valve no. 1
screen grid voltage
of valve no. 2
control grid bias
cathode current of
valve no. 1
cathode current of
valve no. 2
supply voltage to
driver amplifier 1700
300
300
-49
165
165
28
V
V
V
V
mA
mA
V
2.4 to 3.5
dependent on supply voltage
2.4 to 3.6 dependent
on valve characteristics
2.3 to 3.7 dependent
on valve characteristics
Table 6.4.1
If the meter shows no reading in these positions, reference should be
made to section 6.5.
With POWER switch set to DUPLEX, FULL and TUNE button not pressed, valve
current readings, I1
and I2, in the A3J mode, un-modulated will be
approx. 1.4, and in the A3H mode, un-modulated approx.2.3.
6.5
Replacement of Fuses
All fuses, except the high tension fuse, are accessible on the front
panel of the Power Pack. The high tension fuse becomes accessible when
the Power Pack is pulled out.
Note: Set SUPPLY switch to OFF and open external supply voltage switch
before opening the equipment and replacing fuses. Short circuit both
ends of high tension fuse to chassis using an insulated tool before
touching it.
Fuse ratings are given in table 6.5.1 and table 6.5.2 below. Fuses with
marked ratings within 5 per cent of the ratings given must be used. Note
that slow or fast blowing fuses must be used where specified.