Yamaha RX-Z7 User Manual
Page 137
137
En
Troubleshooting
AD
DITIONAL
INFO
RMA
T
ION
■ HDMI
■ Tuner (FM/AM)
■ HD Radio (U.S.A. model only)
Problem
Cause
Remedy
See
page
No picture or sound.
The number of the connected HDMI
components is over the limit.
Reduce the number of the connected HDMI
components.
—
HDCP authentication failed.
Check that the connected HDMI components support
the HDCP copy protection standards.
—
Problem
Cause
Remedy
See
page
FM
FM stereo reception is
noisy.
The characteristics of FM stereo
broadcasts may cause this problem
when the transmitter is too far away or
the antenna input is poor.
Check the antenna connections.
Try using a high-quality directional FM
antenna.
—
Use the manual tuning method.
There is distortion, and
clear reception cannot
be obtained even with a
good FM antenna.
There is multi-path interference.
Adjust the antenna position to eliminate
multi-path interference.
—
The desired station
cannot be tuned into
with the automatic
tuning method.
The signal is too weak.
Use a high-quality directional FM antenna.
—
Use the manual tuning method.
Previously preset
stations can no longer
be tuned into.
This unit has been disconnected for a
long period.
Preset the stations again.
AM
The desired station
cannot be tuned into
with the automatic
tuning method.
The signal is weak or the antenna
connections are loose.
Tighten the AM loop antenna connections
and orient it for the best reception.
Use the manual tuning method.
There are continuous
crackling and hissing
noises.
Supplied AM loop antenna is not
connected.
Connect the AM loop antenna correctly even
if you use an outdoor antenna.
Noises can result from lightning,
fluorescent lamps, motors, thermostats
and other electrical equipment.
Use an outdoor antenna and a ground wire.
This will help somewhat, but it is difficult to
eliminate all noise.
There are buzzing and
whining noises.
A TV set is being used nearby.
Move this unit away from the TV set.
—
Problem
Cause
Remedy
See
page
This unit cannot
receive the HD Radio
signals of the
selected radio
station.
The radio station provides analog FM/
AM radio service only.
Select other radio stations that provides the HD
Radio service.
The signal is too weak.
Adjust the antenna position.
—
Use a high-quality FM/AM antenna.
—
This unit cannot
select other audio
programs than the
main program.
The radio station provides an audio
program only.
HD Radio information
does not appear.
The radio station does not provide the
information.