Sharp SD-EX220 SDEX220 Operation Manual - Page 28
Troubleshooting chart
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SD-EX220 Troubleshooting chart Advanced Features - Enhancing your system - Using other subwoofer For a greater emphasis of bass, a commercially available subwoofer with a built-in amplifier, can be connected to the unit using the SUBWOOFER PRE OUT jack. To subwoofer output jack Audio cable (commercially available) Subwoofer signal Commercially available subwoofer (amplifier built in) To subwoofer input jack Note: No sound is heard from the speaker in which an amplifier is not built in. 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 Possible cause z "CLOCK" appears when the clock z Did a power failure occur? Reset the time is checked. clock. (Refer to page 17.) z When a button is pressed, the unit z Set this unit to the power stand-by mode does not respond. and then turn it back on. z If the unit still malfunctions, reset it. (Refer to page 29.) z No sound is heard. z Is the volume level set to "0"? z Are the headphones connected? z Are the speaker wires disconnected? z The picture on the TV screen is distorted. z When a radio or TV which uses an indoor antenna is placed near the unit, the picture on the TV screen may be distorted or the radio may not function properly. z It is recommended that you use an outdoor antenna. Tuner Symptom Possible cause z The radio makes unusual noises z Is the unit placed near the TV or comput- continuously. er? z Is the FM/AM loop antenna placed properly? Move the antenna away from the AC power cord if located near. z The preset channel cannot be re- z Did a power failure occur? Preset the called. channel again. 28