Introduction
53
Reference
Disc MessagesTroubleshooting

●If this product does not function properly even after you have implemented the possible

solutions given above

Many functions of this product are implemented by microcomputers. If malfunction is caused by

thunder or static electricity, or the main unit does not function properly even when you press a

button, disconnect the power plug from the AC outlet, wait for a while, and then connect this

product again. Then reset the clock.

Disc message Meaning Possible solution
CANNOT PLAY You are trying to play back an unplayable disc or
a disc that has many scratches. Replace the disc.
NO DISC No disc is loaded. –
NO AUDIO The disc may be an illegally copied disc. You cannot listen to the disc.
LR ONLY You are playing back a multi-channel track for
which down-mix is prohibited. This is normal operation.
Problem Possible cause Possible solution Reference
page
No sound/video is
produced.
Improper connection. Connect all cords properly as in
"Connections". 11 - 15
Headphones are connected. Disconnect the headphone plug. 8
The clock display is
flashing.
A power failure occured or the
power plug was disconnected. Reset the clock. 16
Disc playback does not
start.
The disc is upside down. Place the disc on the disc tray with
the letter-printed surface facing up. 22
Moisture has condensed on the
lens.
Leave the main unit turned on, wait
for approximately 1 or 2 hours, and
then operate the main unit.
3
A certain point cannot be
played back properly. The disc is scratched or dirty. Clean or replace the disc. 52
The volume of cassette
tape playback is low. The head or capstans are dirty. Clean the head or capstans. 52
You cannot record a
cassette tape.
The cassette tape is write-
protected. Cancel the write-protection. 44
A radio broadcast cannot
be received. No antenna is connected. Connect an antenna. 11
A whirring noise is
produced.
The main unit is located close to a
TV, computer, or other electric
appliance.
Place the main unit away from a TV,
computer, or other electric appliance. 3
The timer does not work.
You did not set the clock. Set the clock. 16
The main unit is turned on. After setting the timer, turn off the
main unit. 48, 49
You cannot operate the
remote control.
The remote control batteries are
running low.
Replace the batteries with new
batteries. 9
You cannot operate the
main unit with the number
buttons on the remote
control.
The remote control mode selector
on the remote control is set to TV.
Set the remote control mode selector
to AUDIO. 16
A noise comes from the
rear of the main unit.
The internal cooling fan produces
a noise as it rotates.
The noise is not a malfunction. This is
to prevent excessive heat. 13, 17
UX-QD90[UNUS].book Page 53 Thursday, September 29, 2005 1:29 PM