Sharp HT-CN300W operation manual Troubleshooting chart, „ Operation, „ Sound, „ Tuner

Troubleshooting chart

HT-CN300W

Many potential problems can be resolved by the owner without calling a service technician.

If something is wrong with this product, check the following before calling your authorised SHARP dealer or service centre.

„ Operation

Symptom	Possible cause	Reference
		page
When a button is pressed,	z Set this unit to the power stand-by	P. 35
the unit does not respond.	mode and then turn it back on. If the
	unit still malfunctions, reset it.
Timer playback does not	z Is your unit unplugged, or has the	P. 22
start.	power failure occurred? Reset the
	clock.
The display on the unit is	z Press the DIMMER button on the	P. 23
dark.	remote control.
The power is not turned on.	z Is the unit unplugged?	P. 12
„ Sound

Symptom	Possible cause	Reference
		page
No sound is heard.	z Is the volume level set to "0"?	P. 23
	z Are the speaker wires	P. 8
	disconnected?
	z Is the speaker size set to NO (OFF)?	P. 29
	z Is other equipment connected	P. 10
	properly?
The sounds from speakers	z Are the speaker leads connected to	P. 8
are not well balanced.	the wrong channels?
	z Is each speaker placed at the same	P. 14
	distance from the listener?
	z Are speakers adjusted to the same	P. 31
	level?
Noise is heard during	z Move the unit away from any
playback.	computers or mobile phones.

„ Tuner

Symptom	Possible cause	Reference
		page
Radio makes unusual noise	z Move the unit away from any
consecutively.	computers or mobile phones.
	z Is the FM/AM loop aerial placed	P. 8
	properly? Move the aerial away from
	the AC power lead if located near.
„ Remote control

Symptom	Possible cause	Reference
		page
The remote control does not	z Is the remote control plugged in?	P. 12
operate properly.	z Is the battery polarity respected?	P. 16
	z Are the batteries dead?
	z Is the distance or angle incorrect?	P. 16
	z Are there any obstructions in front of
	the remote control sensor?
	z Is the remote control sensor	P. 8
	connected to the main unit?
	z Is the LEARN/TRANSMIT selector	P. 20
	switch set to LEARN?
	z Is the remote control sensor	P. 16
	exposed to strong light (inverter
	fluorescent light, direct sunlight,
	etc.)?
	z Is the remote control for another
	equipment used simultaneously?
The unit cannot be turned on	z Is the AC power lead of the unit	P. 12
with the remote control.	plugged in?
	z Is the remote control plugged in?	P. 12
	z Are the batteries inserted?	P. 16
Signals are not memorised in	z Is the remote control plugged in?	P. 12
operation buttons for other	z Is the angle or the distance correct	P. 20
equipment.
	for memorisation?

References	Troubleshooting chart -
	-

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02/7/11 HT-CN300W_A_5.fm