Troubleshooting & Maintenance Lexicon
5-4
5. The RT-20 is not compatible with all high-definition display
devices. In some cases, this connection might produce video
artifacts in the picture.
6. The RT-20 includes copy-protection circuits that might prevent
recording or produce video artifacts in the picture when the
RT-20 is connected to a VCR or A/V selector.
After changing the HDMI resolution setting, images are not
properly displayed on the display device.
1. Activate STOP mode.
2. Press and hold the remote control STOP button for at least two
seconds to open the Front Panel Display Menu.
3. Use the remote control and buttons to highlight HDMI
RESET on the front panel display.
4. Press the remote control ENTER button to activate HDMI reset.
See “HDMI RESET” on page 3-34 for more information.
RF interference is present in the video output.
Make sure the RT-20 is not positioned near unshielded TV or FM
antennas, cable TV decoders, and other RF emitting devices that
might cause interference. Replace unshielded cables with shielded
cables whenever possible.
When recorded on a VCR or passed through an AV selector,
there is a disturbance in the playback picture.
Because of the RT-20’s copy protection circuits, connection of this
device through a VCR or A/V selector can prevent recording or
cause problems with the picture. This is not a malfunction.
Still frame images shake.
Set the Pause Mode parameter to Field. When this parameter is set
to Field, the RT-20 produces tight, stable, and generally shake-free
still frame images. See “Pause Mode” on page 3-22 for more infor-
mation.
An icon appears on the on-screen display.
The icon shown at the right appears on the on-screen
display when the RT-20 or the loaded disc does not allow
the selected command.

AUDIO OUTPUT OPERATION

The RT-20 is powered on, but there is no audio.
1. Deactivate the following playback modes (if applicable): stop
mode, resume mode, pause mode, still frame playback, frame-
by-frame playback, and slow playback. Audio automatically
mutes when these playback modes are activated.
2. Examine the rear panel to ensure that the required audio con-
nections have been made.
3. Make sure all associated components are powered on and con-
figured with the correct settings. In particular, make sure volume
is set to an audible level.
4. Make sure the RT-20 has a digital and an analog audio output
connection. Some disc formats, such as DVD-As and SACDs, do
not generate digital audio output signals.
5. Make sure the RT-20 is not connected to the phono (turntable)
audio input connector on the associated component.