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Troubleshooting guide continued – Parasound Halo C1 Controller User Manual

Page 56

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TROUBLESHOOTING GUIDE continued

56

Bass Weak or Missing,
continued

Bass from sub does not
blend with other channels

Hum and/or buzz heard
through speakers or
headphones

Some headphones do
not work with C 1

Surround modes
unavailable

THX modes not available

Poor composite video
image

Audible dialog is out of
sync with speakers’ lip
movements when playing
a DVD

No sound or picture in
remote zone

Remote control affects
wrong zone

Subwoofer level too low

Double filtering

Sub polarity is incorrect

Defective audio interconnect
cable

Ground loop with TV cable system

Ground loop among your
components

Plug body too fat for front-panel
hole

Surround amps or speakers not
entered in Setup

Inapplicable mode or speaker
setup

Wrong cable type

DVD player does not correctly
synchronize the audio signal with
the video image in its progres-
sive-scan mode

Remote zone turned off

Remote infrared sensor plugged
into wrong jack

Check level control on subwoofer or sub-
woofer amp, “Sub” trim on Page 3 of C1/C2
menu on Master remote, and subwoofer level
settings on “Speaker setup” menu

Disable low-pass filter in subwoofer or in C 1

Reverse polarity on sub amplifier

Check all audio interconnect cables in affect-
ed channel or coming from affected source

Disconnect your home theater system from
the cable outlet. If the noise goes away, install
a TV cable ground interrupter

Move the ground switch on your power ampli-
fier(s) to the “lift” position. Isolate the source
component causing the hum. Disconnect
sources one at a time and listen for hum each
time. Press the C 1 mute button before you
remove an input plug and unmute the C 1 after
the plug is out. When you’ve disconnected a
source and the hum disappears, reconnect all
of the other sources again. Contact your deal-
er about modifying the cable used to connect
that component to break its ground path. If the
C 1 and other components are rack-mounted,
use insulated shoulder washers to prevent
metal-to-metal contact between each compo-
nent’s chassis or rack brackets and the rack
rails

Get 3.5-mm stereo extension cord with thinner
plug body

Change “Size” entries in Speaker Setup from
“No” to “Small” or “Large”

Consult mode table in “Using Main Controls”

Use video cable (with yellow plugs), not audio
cable

Switch off the progressive scan mode on the
DVD player. Check

www.parasound.com/halo

for

further information on this issue

Turn remote zone on

Move sensor cable to correct jack

TROUBLE

PROBABLE CAUSE

REMEDY