E L A N H O M E S Y S T E M S
Page 48 © ELAN Home Systems 2009 • All rights reserved.
D12 INSTALLATION MANUAL
Symptom Possible Cause Solution
Audio “Hum” 1. Ground potential difference between
source components (ground loop)
2. Faulty/damaged cables
3. Faulty wiring
1. (a) Test AC outlet using ground tester.
(b) Reverse the AC plug of components with
non-polarized ends plugged into the same
outlet strip as amp.
2. Check source equipment cables for damage
and faulty connections.
3. (a) Make sure volume controls are not hooked
up backwards.
(b) Check for shorts in wiring (see item
2 in “No audio…”).
Distorted Audio at Normal
Volume Levels
1. Input gain set too high
2. Defective/incompatible speaker
3. Volume control miswired
4. Volume control Impedance Match
settings incorrect
1. Reduce gain to the channel in question.
2. (a) Check for physical damage to speaker.
(b) Ensure speakers have appropriate power
rating for amplifier.
(c) Ensure speakers have at least 4 Ohm
impedance. This amp is compatible with
speakers with 8-4 Ohm impedance or greater.
3. Check for proper input/output connections at
volume control. Input comes from amplifier,
output goes to speakers.
4. Verify/correct Impedance Match settings.
Audio is Unclear, Bass
Response Low
Speakers out of phase Verify that + of amplifier goes to +of speaker
and - of amplifier goes to - of speaker on ALL
speaker leads.
Incorrect Source Playing
on Speakers
1. Source connected to wrong
input of amplifier
2. Speakers connected to incorrect
speaker outputs
3. Incorrect input selected for channel
1. Verify/correct input connections.
2. Verify/correct speaker connections.
3. Verify input menu
Volume level/ Gain Cannot be
Increased
1. ACE Limiter engaged
2. "AVR" or Automatic Volume Reduction
is engaged
1. Check Volume menu for ACE indication, if indi-
cated check and verify procedures as listed in
"Distorted Audio at Normal Volume Levels".
2. Check Volume menu for AVR indication, check
Ambient Temperature menu for possible overheat-
ing. Check and verify proper ventilation. If well
ventilated follow the steps for "Distorted Audio at
Normal Volume Levels".
First notes of door chime from
C2 missing.
Power Save enabled Use 12V Zone Triggers or disable Power Save.
Signal to rear fill channels cut
in and out.
See above See above
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