Troubleshooting Chart - Sharp HT-CN550DVW3 Operation Manual

Troubleshooting chart (continued)
HT-CN550DVW3
ENGLISH
Tuner
Symptom
The radio makes unusual
noises continuously.
The preset channel cannot
be recalled.
Remote control
Symptom
The remote control does not
operate properly.
The unit cannot be turned on
with the remote control.
E-51
Possible cause
Is the unit placed near the TV or
computer?
Is the FM aerial placed properly?
Move the aerial away from the AC
power lead or the unit if located
near.
Did you remove the plug from the
wall socket, or did a power failure
occur?
Set the channel again.
Possible cause
Is the battery polarity respected?
Are the batteries dead?
Is the distance or angle incorrect?
Are there any obstructions in front of
the unit?
Is the remote control sensor
exposed to strong light (inverter
fluorescent light, direct sunlight,
etc.)?
Is the remote control for another
equipment used simultaneously?
Is the AC power lead of the unit
plugged in?
Are the batteries inserted?
If trouble occurs
When this product is subjected to strong external interference (mechanical shock,
Reference
excessive static electricity, abnormal supply voltage due to lightning, etc.) or if it is
page
operated incorrectly, it may malfunction.
−
If such a problem occurs, do the following:
P. 12
1 Set the unit to the stand-by mode and turn the power on again.
2 If the unit is not restored in the previous operation, unplug and plug in the unit, and
then turn the power on.
When the protection circuit is activated:
P. 43
When short-circuiting the speaker leads or turning the volume too high, the protection
circuit may be activated and the system may enter the stand-by mode.
Unplug the unit and, after 15 minutes or more, plug it in again.
Turn down the volume if set too high.
Before transporting the unit
Reference
1 Press the ON/STAND-BY button to turn the power on.
page
2 Press the OPEN/CLOSE button to open the disc tray.
P. 18
Remove the disc inserted in the unit.
−
3 Press the OPEN/CLOSE button to close the disc tray.
P. 18
4 Press the ON/STAND-BY button to enter the stand-by mode, and
−
then unplug the AC power lead from the wall socket.
P. 18
Condensation
Sudden temperature changes, storage or operation in an extremely humid
environment may cause condensation inside the cabinet (laser pickup, etc.) or on the
−
transmitter on the remote control.
Condensation can cause the unit to malfunction. If this happens, leave the power on
P. 16
with no disc in the unit until normal playback is possible (about 1 hour). Wipe off any
condensation on the transmitter with a soft cloth before operating the unit.
P. 18