Yamaha RX-V663 Owner's Manual page 29

Connecting the FM and AM
antennas
Both FM and AM indoor antennas are supplied with this
unit. Connect each antenna correctly to the designated
terminals. In general, these antennas should provide
sufficient signal strength.
Notes
• Be sure to set the tuner frequency step (Asia and General
models only) according to the frequency spacing in your area in
advance (see page 97).
• The AM loop antenna should be placed away from this unit.
• A properly installed outdoor antenna provides clearer reception
than an indoor one. If you experience poor reception quality,
install an outdoor antenna. Consult the nearest authorized
Yamaha dealer or service center about outdoor antennas.
• The AM loop antenna should always be connected, even if an
outdoor AM antenna is connected to this unit.
Indoor FM
antenna
(supplied)
ANTENNA
UNBAL.
REMOTE
Ground (GND terminal)
For maximum safety and minimum interference, connect the
antenna GND terminal to a good earth ground. A good earth
ground is a metal stake driven into moist earth.
AM loop antenna
(supplied)
MD/CD-R MD/CD-R DV
1 2 3
OPTIC
DIGITAL
OUTPUT
FRO
ZO
R
AM
GND
FM
75Ω
TRIGGER
OUT
Outdoor AM antenna
Use a 5 to 10 m (16 to 33
ft) vinyl-covered wire
extended outdoors from a
window.
Connecting the wire of the AM loop antenna
Insert
Open the lever
y
The wire of the AM loop antenna does not have any polarity
and you can connect either end of the wire to AM or GND
terminal.
Assembling the supplied AM loop antenna
Connections
Close the lever
27
En