Musical Fidelity NU-VISTA Series, Руководство по установке

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P a g e 12
Basic problem-solving with an amplifier is similar to troubleshooting other electrical or electronic equipment.
Always check the most obvious possible causes first, such as the following examples:
Problem Probable Cause Remedy
No power when
POWER button is
pressed.
Mains power plug is not fully inserted
into rear socket. Power cables
between amp and PSU not correctly
connected.
Plug in securely.
Connect PA, Control and Nuvistor PRE power
cables.
No sound Mute function is still active.
Unit is starting up, valves are still
heating up.
Wrong connections between input
sources and the unit
Press the MUTE button on the remote control to
cancel.
Wait until unit is started up correctly, see page
11.
Check audio input lead connections.
Sound cut Loose connection Check input connections.
Switch unit off. Check connections for shorting
strands or wires. When all has been double-
checked reduce volume and switch unit back
on.
Remote control
does not work.
Amplifier’s POWER switch is set to
off.
One or more batteries fitted the
wrong way around.
Batteries are flat.
Remote control is not pointed
directly towards the front panel of
the amplifier.
Interference from another source.
Set switch to on.
Insert batteries correctly.
Change batteries for a new set.
Ensure there is no obstruction between the
remote control and amplifier front.
Lighting such as fluorescent, incandescent, or
even sunlight contains large amounts of infra
red radiation. Ensure such sources are not
shining directly on the infra red window as this
could swamp the signal from the remote control.
Also check the system and any other nearby
remotes for stuck buttons.
Hum. Audio connector plug not fully
pushed in.
Cable Fault
Unsuitable cable (e.g. cable grounds
not connected)
Insert plug securely.
Check cable is connected at both ends.
N.B. Some esoteric cables have internal wiring
intentionally disconnected/modified. For best
results on all inputs analogue AND digital,
please use good quality screened coax; signal
and screens both separately connected at both
ends.
No audio output, or
too low level output.
Incorrect or missing connections
Volume level too low
Wrong source selected
Check connections and make sure they are
secure.
Check volume level.
Selected correct source, check inputs on the
back panel.
LEDs are not
lighting up. LEDs can be turned off, in case they
are too bright for dark rooms.
Power switch on Nu-Vista PSU is
OFF
See page 11 for display controls.
See page 11 for starting up.
PROBLEMS?