Yamaha MDX-793 Owner's Manual - Page 26
Troubleshooting
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TROUBLESHOOTING If your MD recorder fails to operate normally, check the following table. It lists common operating errors and simple measures which you can take to correct the problem. If it cannot be corrected, or the symptom is not listed, disconnect the recorder's power cord and contact your authorized YAMAHA dealer or service center for help. Fault Cause The unit does not respond to operations. • MD is dirty or damaged. • MD is damaged ("UTOC ERR appears in the display). It happens that this unit does not work normally. • There is an influence of strong external noise (lightning, excessive static electricity, etc.) or a misoperation was performed while using this unit. Playback is not possible. • Moisture on the laser pickup. • The power is OFF. • The disc has been loaded incorrectly. Recording is not possible. The MD cannot be removed when partially inserted. Excessive noise. The remote control does not operate. • An unrecorded (blank) MD was loaded ("Blank Disc" appears in the display) . • The disc is record protected ("Protected" appears in the display). • A pre-mastered MD is loaded ("PlaybackMD" appears in the display). • The source is not connected correctly. • The input setting is incorrect. • The recording level is too low. • The digital output level of the digital source is too low. • There is not enough blank space left on the MD. • If the power cord was unplugged or there was a power outage during recording, that recording may be lost. • The carriage lock function has activated. • The unit is too close to a television or other component. • The batteries are exhausted. • The remote control transmitter is operated from an incorrect distance or angle. • The remote control sensor is located in strong direct light. Cure • Replace the current disc with a new one. • Turn this unit power off and disconnect the AC power from the AC outlet. After about 30 seconds have passed, connect the power and try again. • Leave the unit switched ON and wait 20 to 30 minutes for the moisture to evaporate before trying to play the disc. • Press POWER to turn the power ON. • Reload the disc with the label side facing up, and the arrow pointing toward the disc insertion slot. • Insert a recorded MD. • Slide the record-protect tab to the closed position. • Load a recordable MD. • Check all connections again. • Press INPUT repeatedly to select the correct input jacks. • Turn REC LEVEL to adjust the recording level. • Set the digital output level of the digital source to "MAX". • Load a recordable MD with fewer recorded tracks, or erase unnecessary tracks from the current MD. • If recording was interrupted, try recording again starting from the beginning. • Insert the MD completely, then press 0 EJECT to eject it. • Place the unit farther away from the television or other component. • Replace batteries. • Operate it from less than 6 meters (about 20 feet) and 30°. • Place the unit away from the strong light. To clean the cabinet Use a soft cloth slightly moistened with mild detergent solution. Care of MDs • Do not expose the MD to direct sunlight or heat sources such as hot air ducts, nor leave it in a car parked in direct sunlight as there can be a considerable rise in temperature inside the car. • Periodically remove dust and debris from the cartridge surface by wiping it with a dry cloth. • Because the MD itself is housed in a cartridge, you can handle it normally without being concerned about dirt or fingerprints. However, malfunctioning may result if the cartridge itself is dirty or warped. Do not open the shutter on the MD cartridge Trying to force the shutter open will damage the shutter. 26