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E
NJ f
|
TROUBLE SHOOTING
without havirig to call a service representative.
Fault
AM
Broadcast
Reception
A persistent 'hum' occurs when the
station is tuned in.
Intermittent crackling or continuous
background 'roaring.'
Cause
Cure
Known
as modulation hum, this can affect whole
areas where reception conditions are unfavorable.
Atmospheric electricity or electrical storms, possibly
fluorescent lighting or other electrical equipment.
High pitched whistles, etc., particularly
at night.
Signals from adjacent stations are interfering with
reception.
FM Broadcast
Reception
Occasional crackling interference
(particularly with remote, weak
signal stations)
Noisy interference becomes particular-
ly marked for stereo broadcasts, and
spoils enjoyment.
np nn
The FM STEREO
indicator flickers ..
when listening to stereo broadcasts.
Reception suffers from unclear,
distorted sound, although an external
FM antenna is being used.
|
Electrical noise from automobile or motor cycle
ignition systems.
Interference from other electrical equipment,
particularly thermostats.
FM stereo broadcasts are inherently more liable to
this at remote, low signal strength locations.
Signal input from the antenna is too weak.
You are not perfectly tuned in to the station.
Signal input from the antenna
is too srong.
During stereo test transmissions, sound
which should come from only one
channel can be heard faintly from
the other.
PA ——_—_—_
nn
Increase the distance between the TV and CT-610.
feeder.
Set up an externa!
FM antenna
Listen at the BLEND
setting.
Use an external
FM antenna
suitable to your local
signal strength.
J
i rn.
Tune in correctly
(see the section on FM Broadcast
Reception).
En m
Er
oS
a
ie
'
Connect an attenuator between the antenna and the CT-610.
Try reverting back to the T-typ e FM internal antenna provided.
Provided the 'leakage' of one channel into the other is very
11
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