13
Frequently Asked Questions
Unit will not turn on
- Check the setting of the Turn On Options switch. (The front panel Power button will be disabled if the
switch is set to Audio or 12V).
- If using Audio Turn on, try increasing the sensitivity of the audio trigger by turning the Turn on Option
switch
to the “Quieter” position. If this does not work, please set the Turn On Switch to Manual and
now try using the front panel. Does the amp now turn on?
- Check that the AC power is live.
When using the audio turn on trigger the volume comes on too loud
- Make sure you are using the Quieter setting.
- Turn down the Level controls for all the channels (12 O
’clock is a good place to start).
- See page 10 for details.
Front panel indicators are red or flashing green and red
- Check Speakers and speaker wires for shorts.
- Ensure that you have not combined the negative (-) terminals of any of the speaker outputs.
- See page 12 for details.
Why is there no sound from my speakers?
- Check that input and output cables are plugged in all the way at both ends.
- Are your preamplifiers and all power amplifiers turned on?
- Is the correct input selected on the preamplifier?
- Is there an audio source playing (CD player, Tuner, etc.).
I can hear a hum or buzzing noise from my speakers
-
Cable TV
is the most common source of hum. If you have a cable TV box connected to your audio
system temporarily remove the cable from the Cable TV box. If the hum goes away the problem is the
cable TV ground. You will need a Cable TV ground isolator which is an inexpensive device that
attaches between your TV cable and the Cable TV box.
- Light Dimmers can cause noise in your audio. Try turning lights that are controlled by dimmers all the
way off. If the hum goes away the problem is the effect the dimmers have on your AC power. A line
conditioner might help.
- Ground Loops are also a common cause of hum and buzzing noise. Finding a ground loop is a
process of elimination. Unplug your source components one at a time. When the hum goes away
you’ve identified the source of the ground loop. You might be able to stop the hum by attaching a wire
from the chassis of the offending component to the chassis or ground screw of your preamplifier.
