Yamaha RX-V870 Owner's Manual - Page 21

To play a source with the digital sound field processor Illustrations: RX-V1070 Parts in shaded areas ( ) are not present on RX-V870. 2 3 1 Follow step 1-6 shown in "OPERATIONS" on page 15. 2 Select the desired program that is suitable for the source. PRO LOGIC The corresponding indicator will illuminate. 3 If desired, adjust the delay time and the output level of each speaker. (For details, refer to the corresponding descriptions on page 22-23.) Notes q If you prefer to cancel the selected program, press the ON/OFF switch. The sound will be the normal 2-channel stereo without surround sound effect. q In the ROCK CONCERT, JAZZ CLUB, CHURCH and CONCERT HALL modes, no sound is heard from the center speaker. q When a monaural sound source is played in the DOLBY PRO LOGIC or ENHANCED mode, no sound is heard from the front speakers and the rear speakers. Sound is heard only from the center speaker. However, if the center mode is in the PHANTOM, the front speakers output the sound of the center speaker. q If you connect an external amplifier to this unit, see if it has built-in surround sound or ambience circuitry. If it does, then be sure that the surround or ambience circuitry on that amplifier is off while you are using the digital sound field processor's Dolby Pro Logic Surround decoding function. q When this unit is in the Dolby Pro Logic Surround mode, if the main-source sound is considerably altered by overadjustment of the BASS, TREBLE controls or BASS EXTENSION switch, the relationship between the center and rear channels may produce an unnatural effect. 21