Troubleshooting - Emerald Physics EP 200.2SE Owner's Manual

Direct Short
Thermal Protection
Over Current
Power Supply Voltages
Fault mode occurs when you see the Master Power Indicator going RED – If your EP
200.2SE goes into fault mode, immediately power down and wait 30 seconds before re-
powering your EP 200.2SE. Please carefully examine the rear panel and check to be
sure that none of your speaker connections are touching. Check to be sure that all
Input, Output and/or jumper cables are in place with a solid connection. Wires can and
do become twisted or pulled out or away from their normal connection(s). Play particular
attention to your speaker cables at both the output of the EP 200.2SE and your
speakers themselves. Check again to be sure that no wires are touching – this creates
a short circuit and this is bad.
Maintaining Your Emerald Physics amplifier
Your Emerald Physics power amplifier requires no periodic maintenance. It has no user-
serviceable parts inside. To avoid the risk of electric shock, do not remove its top cover.
The exterior can be cleaned with a soft cloth pre-moistened only with a few drops of
water or glass cleaner.

Troubleshooting

No sound
Make sure the patch cords are connected hooking up the pre-out to main-in jacks
Check that AC is live.
Is the unit on?
Check that input cables and speaker wires are secure at both ends.
Make sure that you have selected the correct input.
Is the Hi-Temp or Protect (or both) illuminated? Check for excessive temperature, short
circuited speaker wires, low impedance speaker load, and inadequate ventilation to
remove heat.
Background Hum
First unplug all sources Audio and Video as they possibly can present hum on their
lines. One must then introduce one unit at a time to see if the hum comes back. Video
(particularly Cable Company Equipment) are known offenders in this regard. If the hum
re-introduces itself, please call your Cable Provider and ask them to install an
appropriate filer. There are "Hum Busting" products that one can self-install to see if this
solves the problem (note: it probably will).
One can also try the following -
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