User manual LEXICON CP-3PLUS

[. . . ] Owner's Manual CP-3 PLUS Digital Surround Processor Precautions Save these instructions for later use. Refer to the manufacturer's operating instructions for power requirements. Be advised that different operating voltages may require the use of a different line cord and/or attachment plug. Do not install the unit in an unventilated rack, or directly above heat producing equipment such as power amplifiers. [. . . ] The CP-3 PLUS can also be set to monitor the input level and automatically optimize the input gain. The level is changed from the auto level to the manual level whenever the CP-3PLUS is powered up, or when a new input is selected. When the input button for the currently active input is pressed, the current auto level is displayed. If the same button is pressed again, the input will be set to its manual level. Note: When calibrating the input levels, set the system volume to -25dB or higher to ensure optimum meter accuracy. You may engage the System Mute if you do not want to hear the input. Adjusting Input Parameters To adjust the input parameters for any of the four inputs, select the input, then press the SETUP button on the remote to call up the main Setup menu. The display will show: Select the input you want to adjust by pressing the appropriate input select button at the bottom of the remote. The display will read: SET INPUT(X) GAIN MAN+00 AUTO+00dB 22 CP-3 PLUS Digital Surround Processor Calibration The PARAM v and w buttons increase or decrease the input gain for the input you have selected over a range of -18dB to +12dB. The AUTO setting shows the optimum input level as determined by the CP-3PLUS . If the manual level is set too high, causing input overload, the input level will automatically decrease to the point at which it is no longer causing overload. You can observe this in action by pressing PARAM v until the manual and automatic gain settings are both at +12dB, then play a reasonably loud selection (typically on CD) into this input. You will notice that, while the MAN setting will remain at +12dB, the AUTO setting will decrease until the input is no longer causing distortion. This is an excellent way to determine the optimum setting for the input level. Observe the value of the AUTO setting with a variety of program material and set the MAN gain a few dB above the AUTO setting by pressing PARAM v two or three times. All values are referenced to true clipping, which is 00dB. If using a Dolby Level test tone, adjust the input level to the point at which the LEDs adjacent to the double-D marker just light. Following are some general recommendations for level settings: Compact Disc player: -03dB Multi-Disc (Combi) player: +06dB Video Disc player: +06dB Cassette deck: +03dB AM/FM Tuner: +06dB When you have selected an input level, press STORE to save the setting and return to the Input Menu. Follow this same procedure for each input. You can assign a name (up to 16 characters) to each of the inputs. In the Input Menu, select "SET INPUT NAME", then press PARAM v or w. The On-Screen display will show the 2-line input name display with the leftmost character on the second line flashing. (The LCD indicates the character being adjusted with an underline cursor. ) PARAM v and w will move you forward and backward through the available characters. The sequence of available characters is: Assigning Input Names (*) + , ­ . / 0-9 A-Z * Note that the On-Screen display uses a blinking asterisk (*) to denote a blank space. Press STORE to save the setting and return to the Input menu. 23 Calibration Lexicon Auto-Mode Load (Automatic Input Mode Loading) Auto-Mode Load determines which operating mode will be engaged when a specific input is selected. [. . . ] Avoid using any abrasive materials such as steel wool or metal polish. If the unit is exposed to a dusty environment, a vacuum or low-pressure blower may be used to remove dust from the CP-3PLUS exterior. If severe power surges or sags cause problems with CP-3PLUS memory storage, or you simply want to start with a clean slate, you can restore factory presets into the User registers with the following procedure. This will erase any programs you have stored in the User registers, as well as all setup and calibration values. (Make sure you do not block the infrared receiver on the CP-3PLUS front panel. ) Continue holding down SETUP until the display reads: * RESTORE MODE * SETUP TO EXIT (If you want to resume normal operation without restoring all defaults, this is your last chance. [. . . ]