Troubleshooting Chart - Sharp HT-CN300H Operation Manual

Troubleshooting chart

HT-CN300H
Many potential problems can be resolved by the owner without calling a service tech-
nician.
If something is wrong with this product, check the following before calling your author-
ised SHARP dealer or service centre.
Operation
Symptom
When a button is pressed,
the unit does not respond.
Timer playback does not
start.
The display on the unit is
dark.
The power is not turned on.
Sound
Symptom
No sound is heard.
The sounds from speakers
are not well balanced.
Noise is heard during play-
back.
40
Possible cause Reference
page
Set this unit to the power stand-by P. 41
mode and then turn it back on. If the
unit still malfunctions, reset it.
Is your unit unplugged, or has the P. 22
power failure occurred? Reset the
clock.
Press the DIMMER button on the re- P. 23
mote control.
Is the unit unplugged? P. 13
Possible cause Reference
page
Is the volume level set to "0"? P. 23
Are the speaker wires disconnect- P. 8
ed?
Is the speaker size set to NO (OFF)? P. 35
Is other equipment connected prop- P. 11
erly?
Are the speaker leads connected to P. 8
the wrong channels?
Is each speaker placed at the same P. 14
distance from the listener?
Are speakers adjusted to the same P. 37
level?
Move the unit away from any com-
puters or mobile phones.
TV image
Symptom Possible cause
No images are displayed. Is TV turned on?
Is the input of TV switched?
Is TV connected properly?
Settings are not displayed on The settings will not appear when
the TV screen. TV is connected with an S-video ca-
ble. Verify on the main unit display.
Interference or noise occurs Is the unit placed near TV with inter-
on the TV image. nal aerial? Use an external aerial.
Colour variation interference Are the speakers placed in their
shows on the TV image. proper distances? Turn off the TV
and turn it back on after 15 - 30 min-
utes. If the situation persists, move
the speakers further away from the
TV.
Tuner
Symptom Possible cause
Radio makes unusual noise Move the unit away from any com-
consecutively. puters or mobile phones.
Is the FM aerial or AM loop aerial
placed properly? Move the aerial
away from the AC power lead if lo-
cated near.
02/6/17 HT-CN300H_(E)5.fm
Reference
page
P. 18
P. 18
P. 11
P. 23
P. 14
Reference
page
P. 9