Simaudio Neo 400M Amplifier - Manual (Page 10)

400M Power Amplifier
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10
Operating the 400M
We recommend leaving your Nēo 400M powered
up at all times to maintain optimal performance.
When you plan on being away for a few days, it may
not be a bad idea to power off your amplifier. Please
keep in mind that once fully “broken-in”, your 400M
requires several hours of operation before reaching
optimal performance after powering it up again.
Turning on your Nēo 400M for the first time
Prior to turning the amplifier on for the first time,
make sure that every cable is properly connected to
avoid any problems. Then turn on your preamplifier
connected to the 400M. Flick the main rocker
switch, located on the rear panel, labeled “POWER”
to the ‘1’ (on) position. The blue LED on the front
panel will blink for up to 10 seconds while it
achieves standby mode. When it stops blinking and
is not illuminated, your 400M is in standby mode.
Next, briefly press the push button labeled
“Standby” located on the front panel. You will hear a
very faint click sound confirming that everything is in
order. The blue LED on the front panel will
illuminate, indicating that the 400M is now
powered up and ready for use.
On and Off Sequence
To avoid having any annoying noises (ie. “thumps”
and “pops”) emanate from your speakers when
powering your 400M on or off, you should always
power up your preamplifier prior to powering up
your 400M. As well, always power down your
400M prior to powering down your preamplifier.
Troubleshooting
Your Nēo 400M
Mono Power Amplifier is equipped
with a self-diagnostic system that will automatically
shut itself down when it detects either DC (direct
current) or it enters into thermal protection mode
due to overheating. When either of these situations
occur, the blue LED on the front panel will begin to
blink continuously. If your 400M power amplifier
turns itself off or will not power up, there may very
well be some DC present in the amplifier’s input
coming from your preamplifier’s outputs. To
determine if there is any DC present power down
your 400M via the main power rocker switch, then
disconnecting the input to the 400M leaving only
the speaker connected. Attempt to power up your
400M again: A successful power up will indicate the
presence of DC coming from your preamplifier or
one of your signal sources (ie. CD Player). When
your amplifier has overheated, simply wait until it
cools down before attempting to power it back on
again. If your 400M still doesn’t power up, turn off
the main power switch and check the AC fuse. If the
fuse appears OK, put it back in its socket and then
try powering up again. If the fuse is blown, replace
it with a fuse of the same rating, and repeat the
above process. At this point, you should be able to
power up your 400M. If not, immediately consult
your Authorized MOON Retailer for assistance.