Troubleshooting - ELAC MIRACORD 70 Bedienungsanleitung/Sicherheitshinweise

TROUBLESHOOTING

Symptom
Motor doesn't work
Audio signals are
reproduced distorted
or not loud enough,
even if volume is
turned to max. on
(pre-) amp
The right channel
ap-pears on left
channel and vice
versa
Loud humming noise
Faint humming noise
The music doesn't
sound naturally
16
Possible root cause
No connection to the mains or
mains fuse burnt through
Power supply not
connected properly
Front switch in position „0"
(pre-) amp doesn't have
enough gain
(pre-) amp is misadapted
The channels are swapped
Metal housing acts as
antenna and catches
humming
Metal housing acts as
antenna and catches
humming
Wrong speed selected
Remedy
Check mains plug, receptacle and fuse
Check the low voltage plug for
correct fi t and fi x it.
Switch the front switch to position "1".
Make sure the preamplifi er connected
to the turntable provides a suitable input
and a RIAA equalization. If applicable,
a phono preamp must be connected in
advance
For the Audio Technica AT95 system,
please use the option „Moving Magnet"
for the phono preamp and an input
impedance of 47 kOhm.
Swap the two RCA plugs (left and right
channel) which are plugged into the
turntable's RCA jacks.
Check all connections; for acoustical
check relating major problems reduce
the amp's volume level to minimum.
Possibly the RCA plugs ground rings
should be readjusted.
In certain cases, it makes sense to
connect the metal parts of the turntable
to signal ground of the (phono-) preamp.
On the rear side of the turntable there's
an earthing screw for this purpose.
Please use a wire with enough cross
section for this ground connection.
Check which speed should be chosen
for playing the current record. There
are also records on the market which
have the same diameter as an LP (30
cm) but must be played at 45 rpm (e.g.
maxi singles). On the other hand, there
are also records in single format (17 cm)
which should be played at 33 ⅓ rpm (so
called "EPs").