Yamaha DDP-10 Owner's Manual - Page 22

4. When "TEST CENTER ···dB" is shown on the display, adjust the level of test tone from the center speaker by pressing the PARAMETER + or - button so that it becomes almost as same as that of the main speakers. * While adjusting, the test-tone is fixed on the selected speaker. PARAMETER NOTE: Once you have completed these adjustments, use only the master VOLUME control of the amplifier (or receiver) to adjust the whole listening volume. Do not change any other volume setting in the system. T DVD/LD P DSP Adjustable * Pressing "+" increases and "-" decreases the value. Pressing and holding the button will change the value continuously. 5. In the same way, when "TEST R SUR. ···dB" is shown on the display, adjust the level of test tone from the right surround speaker so that it becomes almost as same as that of the main speakers. 6. In the same way, adjust the level of test tone from the left surround speaker. 7. When adjustments are finished, press the TEST switch once again. 18