Yamaha RX-V640RDS EN - Manual (Page 15)

13
English
PREP
ARA
TION
100kHz/10kHz
FREQUENCY
STEP
50kHz/9kHz
FM/AM
TUNER
75 Ω UNBAL.
FM ANT
GND
AM ANT
■ Connecting the AM loop antenna
1 Set up the AM loop antenna, then connect it
to the terminals on this unit.
2 Press and hold the tab to insert the AM loop
antenna lead wires into the AM ANT and
GND terminals.
3 Orient the AM loop antenna for the best
reception.
Notes
• The AM loop antenna should be placed away from this unit.
• The AM loop antenna should always be connected, even if an
outdoor AM antenna is connected to this unit.
A properly installed outdoor antenna provides clearer
reception than an indoor one. If you experience poor
reception quality, an outdoor antenna may improve the
quality. Consult the nearest authorized YAMAHA
dealer or service center about the outdoor antennas.
FREQUENCY STEP switch (China and General
models only)
Because the inter-station frequency
spacing differs in different areas, set the
FREQUENCY STEP switch (located on
the rear panel) according to the frequency
spacing in your area.
North, Central and South America:
100 kHz/10 kHz
Other areas: 50 kHz/9 kHz
Before setting this switch, disconnect the
AC power plug of this unit from the AC
outlet.
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.
Indoor FM
antenna
(included) AM loop antenna
(included)
Connecting the antennas
RX-V640RDS
Open the cover of the
included 75-ohm/300-ohm
antenna adapter. Cut the external sleeve
of the 75-ohm coaxial
cable and prepare it for
connection.
Cut the lead wire and
remove it.
Insert the cable wire into the
slot, and clamp it with pliers.
Snap the cover into
place.
1 2
Unit:
mm (inch)
3
Lead wire
4
Clamp with
pliers. Clamp
with
pliers.
Insert the wire
into the slot.
5
75-ohm/300-ohm antenna adapter (U.K. model only)
11 (7/16)
8 (5/16)
6 (1/14)
Both AM and FM indoor antennas are included with this
unit. In general, these antennas should provide sufficient
signal strength.
Connect each antenna correctly to the designated
terminals.
CONNECTIONS
0103RX-V640_09-18_EN-GB.p65 03.2.12, 6:48 PM 13