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For digital sources, sound is sometimes not
output depending on media type.
• Format of digital input source is fixed. Other digital formats
will not be output.
➞ Set Digital Format to “Auto” in the Digital Setup sub-
menu of the Input Setup menu.
For DTS and MPEG sources, noises or incorrect
starts occur when the digital source is played.
• Digital Format settings is incorrect.
➞ Try setting Digital Format to the same as the input source
in the Digital Setup sub-menu of the Input Setup menu.
Operation of fan is heard.
• TX-DS989 is equipped with internal ventilation fan to prevent
overheating. This is not a malfunction.
OSD menu settings cannot be changed.
• The settings are locked.
➞ Unlock the settings in the OSD menu: About → Lock
Setup → Unlocked.
Components do not operate from the remote zone
(Zone 2)
• Improper connection.
➞ Check connections.
• Something is blocking the remote sensor.
➞ Move the obstacle.
Sound for a digital source turns on and off
depending on the media being played.
• Digital input format is fixed, so other formats are not played.
➞ Set “Auto” in the OSD menu: Input Setup → Digital Setup
→ Digital Format → Auto.
When playing digital sources such as DTS and
MPEG sources, noise is heard or the beginning is
cut off.
➞ Set the format type in the OSD menu: Input Setup →
Digital Setup → Digital Format.
Also refer to the respective instruction manuals of the compact
disc player, DVD player, video cassette recorder, TV monitor,
etc., that compose your entertainment system.
Since the unit contains a microcomputer to provide advanced
functions, it may malfunction due to external noise or static
electricity. If this happens, press the POWER switch on the unit
and then press it in again after about five seconds.
• Remote controller is not pointed at the remote sensor of the
TX-DS989.
➞ Point the remote controller at the remote sensor of the TX-
DS989.
• Remote controller is too far from the TX-DS989.
➞ Operate the remote controller within 16 feet (5 meters).
• Remote controller is functioning in a different mode
➞ Press the AUDIO MODE button.
OTHER
LATE NIGHT function cannot be used.
• Playback source is not Dolby Digital encoded.
➞ Check that the DOLBY DIGITAL indicator lights up on
the display.
LFE LEVEL function cannot be used.
• Playback source is not Dolby Digital, DTS, or MPEG
encoded.
➞ Check that the DOLBY DIGITAL, DTS, or MPEG
indicator lights up on the display.
Cinema Re-EQ function cannot be used.
• Listening mode is set to “Theater-Dimensional” or “Direct.”
➞ See table on page 45.
Parameter cannot be set for Front Effect, Reflect
Level, Reverb Level, Room Size, etc.
• Parameter may not be able to be set depending on the listening
mode.
➞ See table on page 45.
Multichannel audio is not output.
• To listen to multichannel audio, “Yes” must be selected in the
Multichannel sub-menu in the Input Setup menu.
➞ Check that the component is connected to the MULTI
CHANNEL INPUT port and check the OSD Menu
settings.
Cannot change OSD Menu settings.
• OSD Menu is locked so that it cannot be changed.
➞ Set “Unlocked” at the Lock Setup sub-menu in the About
menu.
Components in remote zone (Zone 2) do not
operate properly.
• Components are incorrectly connected.
➞ Check connections.
• Objects are interfering with remote controller signals.
➞ Move inferring objects away from path of remote
controller signals.
Troubleshooting guide
