Primo preamplifier
PROBLEMS?
Issue 1
Page
10
of
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
Unit(s) not coming on by trigger
signal
Mains power plug is not fully inserted
into rear socket or mains socket
Mains to unit(s) switched off
Trigger signal too weak or not present
Trigger leads disconnected or faulty
Plug in securely.
Check all units to be triggered have
their MAINS SWITCHES set to ON
The trigger will not work with them
in the off position
Check Trigger signal, and trigger
sending unit
Check Trigger lead(s)
No sound
Mute function is still active
Wrong connections between input
sources and the unit
Volume turned down
Press the
MUTE
button on the
remote control to cancel.
Check audio input lead connections
and correct source is selected
Check volume level
Sound cut(s) out
Loose connection
Check input and output connections
When all has been double-checked
reduce volume and switch unit back
on.
Hum
Audio connector plug not fully
pushed in
Incorrect input switch position
Cable Fault
Unsuitable Cable
(e.g. cable grounds not connected)
Insert plug securely
Check cable is connected at both
ends.
Check the corresponding input switch
is correctly set for RCA or XLR input
N.B. Some esoteric cables have
internal wiring intentionally
disconnected/modified. For best
results on all inputs, 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
Check connections and make sure
they are secure.
Remote control does not work
Amplifier’s
POWER
switch is set to
off
Battery fitted the wrong way round
Battery is flat
Remote control is not pointed directly
towards the front panel of the
amplifier
Interference from another source
Set switch to on
Insert battery correctly
Change battery for a new one
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
Remote control range has greatly
reduced
Battery is running out
Change battery for a new one.
If none of these actions affect a cure, please contact the dealer, or an authorised Musical Fidelity service agent.
Remember; never open the case of the Primo, as this will invalidate the guarantee.
