Introduction
77

Troubleshooting

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.

Problem Possible cause Possible solution Reference
page
No sound/video is
produced.
Improper connection. Connect all cords properly. 11
Headphones are connected. Disconnect the headphone plug. 8
The clock display is
flashing.
A power failure occurred or the
power plug was disconnected. Reset the clock. 17
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. 75
An error occurred on the MD. Record to the MD again. 51
The volume of cassette
tape playback is low. The head or capstans are dirty. Clean the head or capstans. 75
You cannot record an
MD/cassette tape.
The MD/cassette tape is write-
protected. Cancel the write-protection. 55, 75
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
You cannot set the timer. You did not set the clock. Set the clock. 17
The timer does not work. The main unit is turned on. After setting the timer, turn off the
main unit. 69, 71
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. 17
When you turn on the
main unit, a noise comes
out from the rear of the
main unit.
The internal cooling fan produces
the noise as it rotates.
The noise is not a malfunction. This is
to prevent excessive heat. 13, 18
UX-QD7[UB]-05.fm 77 ページ 2004年9月6日 月曜日 午後5時49分