ADCOM
GFT
-555
OWNERS
MANUAL
WELCOME
We
ask that you thoroughly
read
this owners manual before turning your Adcom GFT-555 tuneron.
Your Adcom GFT-555 digital tuner represents excellent value in advanced tuner design. The
superior performanceof theGFT-555 is the result
of
athorough rethinking
of
high performanceconcepts
in tuner design.
We
have written this manual to anticipate the kinds of questions and problems that you might
encounter while enjoying the full benefits
of
your ADCOM GFT-555 tuner.
SECTION
1
WHAT TO
DO
WHEN
YOU
OPEN THE BOX
Before each GFT-555 left the factory, it was carefully inspected for physical imperfections
as
a routine part
of
ADCOM's systematic quality control. This, along with full electrical and mechanical
testing, should insure a product flawless in both appearance and performance. Afteryou have unpacked
the tuner; inspect it for physical damage. Save the shipping carton and all packing materials, as they are
essential
to
reduce to a minimum the possibility
of
transportation damage, should the product ever need
to
be shipped again.
In
the unlikely event that damage has occurred, notifyyourdealer immediately and
request the name
of
the carrier
so
that a written claim to cover shipping damage can be initiated.
THE RIGHT TO ANY CLAIM AGAINST A PUBLIC CARRIER CAN BE FORFEITED IF THE CARRIER
IS NOT NOTIFIED PROMPTLY AND IF THE SHIPPING CARTON
AND
PACKING MATERIALS ARE
NOT AVAILABLE FOR INSPECTION.
SAVE
ALL
PACKING MATERIALS UNTIL THE CLAIM HAS
BEEN SETTLED.
SECTION
2
WHERE TO
PUT
IT
(AND WHERE NOT TO)
Adequate ventilation will assure trouble free operation of your tuner. The unit may be mounted
either
as
a free standing unit
or
in a standard 19" rack using the accessory rack mount adaptors, model
# RM-3 (available through yourADCOM dealer). The tuner should not be totally enclosed with otherheat
producing components.
SECTION
3
WHERE (AND HOW)
ALL
THE WIRES
GO
(Please refer to the diagram on page
3)
The ultimate performance
of
the GFT·555, like any otherfine tuner, relies on the quality and set up
of
the
FM
antenna and the quality of the broadcast signal. Please
read
this section carefully, the time
invested will bedirectly returned in improved sound quality. Remember, whenever rear panel connections
are being made, the GFT·555 and all associated components should be switched
OFF.
AM ANTENNA
0,0,
and 0
The GFT·555 comeswith amovable ferrite loop forAM reception
O.
Simply swinging this loop
out
away from the back panel of the GFT·555 will provide reasonable AM reception. Should you find that you
are not receiving adequate AM reception, you may make your own AM
antenna
This is accomplished by
taking oneend ofasingleinsulated wireand connecting it
to
theterminal onthe rear panel oftheGFT-555
marked AM 0.This wire may then be run to a high pOint in your home
or
hung out of a nearby window.
Running another insulated wire from the GND(ground) terminal
Oon
the rear panel of the GFT·555
to
a
good ground may also improve AM reception.
FM ANTENNA
f)and
8
Your G
FT-555
is
provided with afolded dipole wire antenna Before the tuner is plugged in, connect
this antenna to the terminals marked 300 ohms8 on the back panel. TheGFT-555 mayalso be used with
antennasystems designed for
75
ohm co-axial (round) cable. This type of connection is common
to
many
cable systems being used. When a
75
ohm system is being used, the cable should be terminated
by
an
"F"-type connector. This "F" connector is then connected to the terminal labeled
75
ohms
f)
on the rear
panel of the GFT·555.
The basic folded dipole antenna included with the GFT-555 allows forthe reception
of
FM
stations
2
