User manual MCINTOSH MX120 AUDIO AND VIDEO PREAMPLIFIER PROCESSOR

[. . . ] A/V Control Center MX120 Owner's Manual Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories. Patent No's: 5, 451, 942; 5, 956, 674; 5, 974, 380; 5, 978, 762; 6, 226, 616; 6, 487, 535 & other U. S. and worldwide patents issued & pending. [. . . ] The delays can be adjusted from 1 foot to 20 feet in one foot increments for each Loudspeaker. Note: Before performing the TIME DELAY adjustments, you must first have completed the SPEAKER SIZE adjustments. 1. Press and hold the Front Panel SETUP Push-button for approximately three seconds to enter the Setup Mode. The word SETUP will appear on the MX120 Front Panel Display and the MAIN SYSTEM SETUP Menu will appear on the Monitor/TV screen. Using the Up or Down directional push-buttons, select SPEAKER TIME DELAY on the On-Screen Menu, followed by the SELECT/OK Push-button on the Remote Control. Refer to figure 10. Note: The very first time the SPEAKER TIME DELAY MENU is accessed, the factory default settings will be indicated. MENU: SPEAKER TIME DELAY LEFT FRONT 10FT CENTER 10FT RIGHT FRONT 10FT RIGHT SURROUND 10FT RIGHT BACK SUR 10FT LEFT BACK SUR 10FT LEFT SURROUND 10FT SUBWOOFER 10FT MAIN MENU Figure 10 3. Measure the distance from the Listening/Viewing Area to each of the Loudspeakers. A table has been provided to record the measurements and settings. Note: A distance measurement that contains fractions of a foot, should be rounded up or down to the nearest whole number for this procedure. 4. Select the appropriate Loudspeaker location and type by using the Up or Down directional push-buttons to select first the menu item and then press the Left or Right directional push-buttons to change the current setting. When all of the settings on the SPEAKER TIME DELAY Menu agree with the Loudspeaker measured distances in your Home Theater System, select MAIN MENU. The MAIN SYSTEM SETUP Menu will reappear on the Monitor/TV screen. Continue next to the SPEAKER LEVEL Settings. If you do not wish to perform SPEAKER LEVEL Adjustments at this time, select MAIN MENU from the menu. The MAIN SYSTEM SETUP Menu will reappear on the Monitor/TV screen and proceed to the next step. Select EXIT from the MAIN SYSTEM SETUP Menu. If you are satisfied with the changes that you have made, select YES to save those changes or NO not to save them. The MX120 will then return to normal operation. Refer to figure 7 on page 25. Loudspeaker Time Delay Location Default Setting New Setting Left Front Center Right Front Right Surround Right Back Sur Left Back Sur Left Surround Figure 9 28 10 feet 10 feet 10 feet 10 feet 10 feet 10 feet 10 feet 10 feet Subwoofer SETUP, con't How to Adjust Loudspeaker Levels A properly setup Home Theater Surround Sound System will have all Loudspeaker levels adjusted to the same volume level in the Listening/Viewing Area. The MX120 includes a built-in test signal generator and its output is switched into each Loudspeaker, either automatically or manually. The correct volume level for each Loudspeaker can be determined in the Listening/Viewing area, either with a sound pressure meter or by listening. Level adjustments are made in 1dB steps, over a plus or minus 12dB range, by using the Remote Control Left and Right directional push-buttons. Notes: Before adjusting the SPEAKER LEVELs, perform the SPEAKER SIZE and SPEAKER TIME DELAY adjustments first. The SPEAKER LEVEL On-Screen Display will only indicate channels that have been switched On in the SPEAKER SIZE Menu. A sound level pressure meter will greatly aid in adjusting the Loudspeaker levels and the Left Front Loudspeaker Volume level can serve as a reference. MENU: SPEAKER LEVEL OFF LEFT FRONT CENTER RIGHT FRONT RIGHT SURROUND RIGHT BACK SURR LEFT BACK SURR LEFT SURROUND SUBWOOFER MAIN MENU 0 0 0 0 0 0 0 0 1. [. . . ] Press the Front Panel STANDBY/ON Push-button, if Zone A is not active. Press the ZONE B Push-button and immediately press the STANDBY/ON Push-button, the Front Panel Alphanumeric Display will indicate Zone B Input Source Select and Volume Level. Refer to figure 59. Note: During the time the LED Indicator above the ZONE B Push-button is illuminated (approximately three seconds), the Zone B Volume Level may be changed using the VOLUME Control. The Zone B Power may also be switched Off by pressing the Front Panel STANDBY/ON Push-button within the three second time period. [. . . ]