Maintenance, Trouble Shooting And Things To Avoid - Infinity IRS Epsilon Owner's Manual

Epsilon

Maintenance, Trouble Shooting and Things to Avoid

Power-up sequence
Turn on the system in sequence from signal sources to preamp to SCU to amplifiers, keeping the amplifiers for last.
Turn the amplifiers on one channel or stereo amplifier at a time, and wait for each to stabilize before turning on the next.
This procedure gives you time to immediately turn off the amplifier in question, if there is any unusual or loud noise
resulting from incorrect connections or control settings, before damage can occur. At the end of the initial power-up, you
should be greeted by silence from your system.
If any loud or unusual noise occurs, quickly turn off all components and re-check all connections and SCU control
settings, paying particular attention to woofer amplifier phase and the SCU's phase switch setting.
Play some music
Put on a CD or LP or tape, and advance the preamp volume control. Play the system at a moderate level for a while
and check that the left and right speakers are actually reproducing left and right channel sounds - a test CD with voices
or sounds in each channel separately is very helpful for this. Verify that the system sounds well balanced from left to
right with stereo music, and that each of the drivers is actually operating.
MAINTENANCE, TROUBLE SHOOTING AND THINGS TO AVOID
Remember to change the batteries!
The two 9V batteries located in each speaker's rear compartment should be changed at least every two years, well
before they are fully discharged. Given their invisibility and their subtle effect on sound quality, this is an easy item to
forget about, with no attention-getting reminders that the batteries need replacing. Letting the batteries fully discharge
will often result in chemical damage to the batteries, their connections, and their surroundings.
Since these batteries are inexpensive, you may find it convenient to change them annually, on an anniversary, or at the
same time that other maintenance items around the home are performed - for example, the changing of clock batteries
or the batteries in smoke detectors. A note in this manual detailing the batteries' installation date and the next change
date can help to remind you.
Cleaning
The Epsilon enclosures should be keep dust free - simply wipe the enclosures' finished surfaces with a soft, clean, lint-
free cloth on a regular basis. The cloth grilles covering the rear of the speakers may be lightly vacuumed with a dust
brush attachment. Do not vacuum over the location of the rear-facing EMIT tweeter at the top rear of the enclosure.
The front grille cloth may be lightly brushed to remove dust. Do not vacuum over the openings of the LEMIM, EMIM
and EMIT drivers.
Keep the case and panels of the SCU free from dust by wiping with a soft cloth and by vacuuming with a dust brush
attachment.
No power to the SCU
If the SCU is plugged into a known live outlet (test it with a lamp or voltmeter), the power cord has no sign of damage
and is plugged into the SCU, but the SCU does not power up, check its fuse by following the procedure in the Epsilon
Servo Control Unit Connections, Changing the voltage selector or fuse, page 12.
A blown fuse is extremely rare and is the result of a surge on the power line, the incorrect fuse, the wrong voltage
setting, or the failure of a component in the SCU. If the fuse is blown, replace it with a fuse having the correct rating. If
the second fuse also blows, take the SCU to your dealer for service.
CAUTION: The SCU contains no user serviceable parts. Do not attempt to repair the SCU. Refer all service
requirements to qualified personnel.
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