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