Yamaha RX 797 Owners Manual - Page 51

TROUBLESHOOTING The sound is The power of this unit is turned off, or this Turn on the power of this unit. degraded when unit is set to the standby mode. listening with the headphones connected to the CD 17 player or the tape deck connected to this unit. The sound level is low. The LOUDNESS control is functioning. Set the LOUDNESS control to the FLAT position. 20 The input source The CD DIRECT AMP button is turned Turn off the CD DIRECT AMP button. cannot be changed on. although the INPUT 20 selector is rotated. Using the BASS, TREBLE, BALANCE and LOUDNESS controls does not affect the tonal quality. The CD DIRECT AMP or the PURE DIRECT button is turned on. The CD DIRECT AMP or the PURE DIRECT button must be turned off to use those controls. 20 ■ Tuner Problem Cause Remedy FM stereo reception is noisy. The particular characteristics of the FM stereo broadcasts being received may cause this problem when the transmitter is too far away or the antenna input is poor. Check the antenna connections. Try using a high-quality directional FM antenna. Try using the manual tuning method. There is There is multipath interference. distortion, and clear reception cannot be obtained even with a good FM FM antenna. The desired station cannot be tuned in with the automatic tuning method. The signal is too weak. Adjust the antenna position to eliminate the multipath interference. Try using a high-quality directional FM antenna. Try using the manual tuning method. Previously preset stations can no longer be tuned in. This unit has been disconnected for a long period. Preset the stations again. The desired station cannot be tuned in with the automatic tuning method. The signal is weak or the antenna connections are loose. Tighten the AM loop antenna connections and orient it for the best reception. Try using the manual tuning method. AM There are continuous crackling and hissing noises. The noises may result from lightning, fluorescent lamps, motors, thermostats or other electrical equipment. Try using an outdoor antenna and a ground wire. This will help somewhat, but it is difficult to eliminate all noise. There are A TV set is being used nearby. buzzing and whining noises. Move this unit away from the TV set. See page 14 25 - 14 25 26 - 25 - - ADDITIONAL INFORMATION 47