Sharp HT-SB250 HT-SB250 Operation Manual - Page 14
Troubleshooting chart
UPC - 074000369801
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Troubleshooting chart 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 authorized SHARP dealer or service center. ■ General Symptom No sound is heard. Noise is heard during playback. Possible cause ● Is the input signal (selection) set properly? ● Is the volume level set to "0"? ● Is muting activated? ● Move the unit away from any computers or mobile phones. When a button is pressed, the unit does not respond. The power is not turned on. ● Set this unit to the stand-by mode and then turn it back on. ● Is the unit unplugged? (Refer to page 10.) ● The protection circuit may be activated. Unplug and plug in the power cord again after 5 minutes or more. ■ Remote control Symptom Possible cause The remote control does not operate properly. ● Is the battery polarity correct? ● Is the battery dead? ● Is the distance or angle incorrect? ● Are there any obstructions in front of the unit? ● Is there a strong light shining on the remote sensor? ● Is the remote control for another equipment used simultaneously? The unit cannot be turned on with the remote control. ● Is the AC power cord of the unit plugged in? ● Is the battery inserted? TV cannot be operated with the remote control. ● Depending on the model, some or all functions may not be operable using the remote control of this unit. In this case, use the remote control supplied with the TV. E-13