Tips; Search For Errors - t.a.c. C-60 Manuel D'utilisation

C-60 24.04.2009 16:53 Uhr Seite 40
Burn in/ Warm up
Your audio components need a certain time
period until they reach maximum performance.
The duration of this "warm up" time is very diffe-
rent for the various elements of your audio system.
Higher and homogeneous sound quality is achie-
ved while keeping the device switched on.
Your audio specialist dealer has enough experi-
ence to give you more information.
Net frequency noise
Some audio source devices may in combination
with the amplifier cause a humming noise at
power line frequency audible from your speakers.
Usually, its volume varies with the volume setting
of the amplifier. This is no sign of a defect or fault
of your audio products but has to be eliminated.
Generally, every wall-powered device connected
to the ground wire of the power plug can cause
this problem when connected to the amplifier.
Experience shows that this problem is mainly cau-
sed by antenna-connected components (as TV-sets
or Tuners), personal computers, electrostatic loud-
speakers, subwoofers, record players or headpho-
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TIPS

ne amplifiers that are connected to the audio
inputs of the amplifier. Another possible reason for
humming noise is electromagnetic interference of
other components' power supplies with pick-up-
systems of record players (change the place of the
record player for a test).
In most electric devices the ground potentials of all
signals are connected to each other at one central
point, where they have one common connection.
If the device uses the protective conductor of the
wall outlet, the corresponding wire of the line cord
is connected intractably to the metal housing of
the device. This is mostly the point where the cen-
tral grounding point is attached to. By doing this
the housing is able to shield all signals from exter-
nal radiated noise. Some main amplifiers are
equipped with a "Ground Lift" switch. If it is acti-
vated, ground potential of the chassis and the pro-
tective ground wire are being separated from the
central signal ground point. The protective ground
wire keeps its function. Sometimes this helps pre-
vent noise caused by errors in grounding.
If the problem occurs and cannot be solved by
yourself your audio specialist dealer will help you.

SEARCH FOR ERRORS

Symptom Possible Cause
Mains cable is not connected to a suitable
Unit does not work
mains wall outlet.
after pressing the
power button
Mains cable has not been firmly inserted into
wall power socket and the device's socket.
Otherwise it may be defective.
Unit fuse or unit is defective.
An unsuitable data medium e.g. a DVD or a
An inserted disc is
data CD-R has been inserted.
not read
Perhaps the CD is dirty or scratched.
The CD was not inserted with the printed side
up.
A CD-R or CD-RW was written at too great a
speed.
The magnetic puck has not been attached on
top of the inserted Audio CD or the CD cham-
ber cover has not been closed completely.
If there is a large major in the ambient tempera-
Play does not start
ture, moisture may have precipitated in the
after pressing
player's drive.
"PLAY/PAUSE"
(8)(24)
A wrong input channel or a volume setting
No sound on both
too low has been selected at the amplifier.
channels although
the unit is ready for
The appropriate audio output of the player is
use (front panel dis-
not connected or not correctly connected with
play (4) is functional) the desired input connector of the
receiver/amplifier.
CD playing has not been started.
Output level "LEV" (34)(35) has been set too
low with the remote control.
Front panel display It has been switched off before using "DIM-
MER" (28).
does not work
Countermeasure
Connect to a functioning socket using a suitab-
le mains voltage.
Check the power cable. If necessary,
exchange it with a suitable mains cable
and push its plug firmly into wall socket and
the device's power connector.
Contact your dealer.
This special disc cannot be played back with
this player.
Clean the CD and try it again.
Insert the CD in the correct position.
The disc cannot be played.
Make sure the magnetic puck is fitted and
close the CD chamber cover by moving it as
far as possible toward the front of the CD
player.
After 1-2 hours the moisture should have
evaporated and the CD will play again.
Check and correct the connections and set-
tings.
Create an audio connection between the CD
player and the receiver/amplifier as descri-
bed in the "Installation" section.
Start playback with "PLAY/PAUSE" (8)(24).
Carefully increase the output level.
Press the button "DIMMER" (28) one more time.
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