Unison Research P30K, Руководство пользователя

Страница: 5 / 10

5
- Locate the four screws holding the valve cage in place,
and unscrew each one by two turns.
- Slide the valve cage to the left until it is free from the
screws and then lift it clear.
- Replacement of the valve cage is the reverse of the
above procedure.
5. CONNECTION TO THE MAINS
Before connecting your P30K to the mains, ensure that your
local mains voltage is the same as that indicated on the rear panel.
Never connect the amplifier to AC mains if the local voltage
is higher than that indicated on the rear panel!
The mains fuses are situated in the fuse-holder which is integral
with the IEC mains socket. The correct value of mains fuses is
indicated on the rear panel and in the technical specifications at the
end of this manual.
Always replace fuses with new ones of the same
type and value !
6. OPERATION
Warning! Switch on the P30K only after all the input and
output connections (including loudspeaker connections) have
been made and checked !
Before switching on, ensure that the volume control is at zero
(fully anti-clockise), and allow around 30 seconds from switch-on for
initial warm-up and stabilisation of the valves before turning up the
volume.
Note that good practice for switch-on and switch-off is as
follows: Switch on the Preamplifier first, then the Power Amplifier.
When switching-off, reverse the above sequence.
The P30K takes about 15 minutes from switch-on to reach its
best performance.