Yamaha Av1 Service Manual

En141
VideoOnly the front speakers work on multi-
channel audio.
The playback device is set to output 2-channel audio (PCM, etc.) 
only. Change the digital audio output setting on the playback device.
Noise/hum is heard.
This unit is too close to other digital or radio frequency 
device. Move this unit further away from such device.
The cable connecting this unit and playback device is defective. If there is no problem with the connection, replace with another cable.
The sound is distorted.
Any device...

En142
FM/AM radio
Problem
Cause
Remedy
FM radio reception is weak or noisy.
There is multi-path interference. Adjust the FM antenna height or orientation, or place it in a different location.
Your area is too far from the FM station transmitter. Press MODE to select “Mono” (monaural reception) (p.65).
Use an outdoor FM antenna commercially available. We recommend using a 
sensitive multi-element antenna.
AM radio reception is weak or noisy.
The noises may be caused by fluorescent lamps, motors,...

En143
USB and network
Problem
Cause
Remedy
This unit does not detect the USB 
device.
The USB cable connecting this unit and USB device is not 
compliant with USB 2.0. Use a USB cable compliant with USB 2.0.
Folders and files in the USB device 
cannot be viewed.
The folder structure not supported by this unit is applied.This unit supports folder hierarchies of up to 8 levels and up to 500 items (total of 
files and subfolders) per folder. If necessary, modify the folder structure on your 
USB device.
The...

En144
Remote control
Problem
Cause
Remedy
This unit cannot be controlled using the 
remote control.
Out of the operating range. Use the remote control in the operating range (p.5).
The batteries are weak. Replace with new batteries.
Direct sunlight or lighting is striking the remote control sensor of 
this unit. Adjust the lighting angle, or reposition this unit.
The remote control is set to control external devices. Press SOURCE/RECEIVER to set the remote control to control this unit (the key 
lights up...

En145
Error indications on the front display
Message
(alphabetical order)
Cause
Remedy
Access denied
Access to the PC is denied. Configure the sharing setting and select this unit as a device to which music contents are shared (p .80).
Access error
This unit cannot access the USB device. Turn off this unit and reconnect your USB device. If the problem persists, try another U SB device.
This unit cannot access the iPod connected to the US B jack. Turn off the iPod and turn on it again.
There is a problem...

En146
Audio informationAudio and video synchronization (Lipsync)Lip sync, an abbreviation for lip synchronization, is a technical term that involves both a problem, and the capability of 
maintaining audio and video signals synchronized during post-production and transmission.
Whereas the audio and video latency requires complex end-user adjustment, HDMI version 1.3 incorporates an 
automatic audio and video syncing capab ility that allows devices to perform this synchronization automatically and...

En147
DTS Digital SurroundDTS Digital Surround was developed to replace the analog soundtracks of movies with a 5.1-channel digital sound 
track, and is now rapidly gaining popularity in movie theaters around the world. DTS, Inc. has developed a home theater 
system so that you can enjoy the depth of sound and natural spatial representation of DTS Digital Surround in your 
home. This system produces practically distortion-free 5.1-channel sound (technically, left, right and center channels, 2 
surround...

En148
Video informationComponent video signalWith the component video signal system, the video signal is separated into the Y signal for luminance and the Pb and Pr 
signals for chrominance. Color can be reproduced more faithfully with this system because each of these signals is 
independent. The component signal is also called the “color difference signal” because the luminance signal is 
subtracted from the color signal. A monitor with component input jacks is required in order to output component...

En149
Video signal flowVideo signals input from a video device to this unit are 
output to a TV as shown below.(solid line) is always av ailable.  (dotted line) is 
available only when “Analo g to Analog Conversion” 
(p.114) in the “Setup” menu is set to “On” (default).
■  Video conversion table You can select a resolution and an aspect ratio applied to HDMI-output video processing.
 This unit does not convert 480-line and 576-line video signals interchangeably.
HDMI out
COMPONENT VIDEO out
S VIDEO 
out...

En150
HDMI ControlHDMI Control allows you to operate external devices via HDMI. If you connect a TV that 
supports HDMI Control to this unit with an HDMI cable, you can control this unit (power, 
volume, etc.) in conjunction with TV remo te control operations. You can also control 
playback devices (HDMI Control-compatible  BD/DVD players, etc.) connected to this 
unit with an HDMI cable. 
For details on connections, see “Connecting a TV” (p.31) and “Connecting video 
devices (BD/DVD players, etc.)”...