E L A N H O M E S Y S T E M S
INSTALLATION MANUAL
© ELAN Home Systems 2009 • All rights reserved. Page 63
S86A
Table 5-1 Audio Troubleshooting Procedures
Symptom Possible Cause/s What an authorized installer can do
Audio “hum”
or buzz
through system
speakers
when audio
playing.
1. Ground Loop
2. Source Input
level too high.
3. Faulty/damaged
cables.
4. Faulty wiring.
a. Ensure proper grounding using a three prong grounded AC
outlet.
b. Isolate problem by disconnecting each source one-by-one.
Reduce level settings in VIA!TOOLS or ELANTOOLS.
Check source equipment cables for damaged cables and
faulty connections.
a. Make sure any volume controls are not hooked up backwards.
b. Check for shorts in wiring.
Poor Audio
quality.
Audio is
unclear, Bass
response is
low.
1. Speakers out
of phase.
2.Incorrect left/
right assignment
of source
or zone RCA
cables.
3. Source level
programming
too high/too
low.
Carefully check polarity of each speaker.
Isolate to source or zone and correct.
Increase/decrease source level (+9/- 6dB).
Audio plays at
full volume in
a variable
zone. No volume
control
with IR zone
controller
(Keypad,
etc.).
1. Fixed zone
output connected
to amp
in variable
zone.
2. Loop output
connected
instead of variable
zone output
Set DIP switches to Variable.
Connect Variable zone output to amplifier.
No audio from
one or more
channels
1. Loose/bad
speaker cable
connection
2. Break/short
in speaker
cable.
3. Speaker is
defective.
4. Source not
sending audio.
Check cable ends at binding posts and speaker terminals.
Check continuity of each speaker cable using a multimeter. If
short or open is indicated, check wiring for proper connections.
Swap with known good speaker.
Verify source is powered up and playing. Check any Tape
Monitor settings on A/V Receiver.
Audio very
distorted in
areas using
volume controls
Impedance-
Match settings
incorrect.
Volume control
miswired
Correct Impedance-Match jumper settings on volume control(s)
Check for proper input/output connections at volume control.
Input comes from amplifier, output goes to speakers.
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