User manual MCINTOSH C500

[. . . ] Controller/Preamplifier/Tube Preamplifier C500 Owner's Manual McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549 The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. WARNING - TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. To prevent the risk of electric shock, do not remove cover or back. No user-serviceable parts inside. IMPORTANT SAFETY INSTRUCTIONS! PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT. 1. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. [. . . ] Rotate the SELECT 2 Control to select the Tuner Input and adjust the VOLUME Control to the desired listening level. Refer to figure 32 . Figure 32 Note: If the C500 Controller is in the SETUP Mode, exit before proceeding. Figure 30 Note: Connect a 1/8 inch Stereo Mini "Y" adapter to Data Port number 6 on the C500 Controller. From each leg of the "Y" adapter connect a Cable to the Data In jacks on each CD Player. 2. Press the SETUP Push-button twice to access the Setup Preamp Mode, unless the C500C is already in the Setup Preamp Mode. Rotate the MENU Control until the words "TRIM 0. 0 TUN" appears. If there are any other Data Port re-assignments to be made, repeat steps 3 and 4. Note: DATA PORTS may also be switched off by selecting "- -" using the SELECT 2 Control Refer to figure 31. Figure 33 Note: The Level Input Trim can also be set via the Remote Control. Figure 31 6. If no other adjustments are to be made at this time, press the SETUP Push-button to exit the Setup Preamp Mode or proceed to the next desired Setup Preamp Mode for adjustment. Trim Level Adjustment Various source components can have slightly different volume levels. This could result in the constant need to readjust the C500 Volume Control when switching between different Input Sources. The Level Input Trim Feature on the C500 Controller allows the adjustment of levels for each of the Source Inputs, so that they have the same relative volume. The Tuner and CD Inputs are used in the following example. Notes: The possible range of adjustment in volume level is ±6dB. The Tape/Record Output Levels are unaffected by any changes in the Level Trim Settings. Any LEVEL Trim adjustments made are retained in permanent memory and can be changed only by performing a new Level Trim Procedure. The Tuner Input Volume Level can serve as a reference or choose another Input 4. If necessary, rotate the SELECT 2 Control until the word TUN appears on the right side of the Front Panel Alphanumeric Display, "TRIM 0. 0 TUN". If necessary, rotate the SELECT 1 Control until two zeros appears in the center of the Front Panel Alphanumeric Display, "TRIM 0. 0 TUN". Rotate the SELECT 2 Control until the word CD appears on the right side of the Front Panel Alphanumeric Display, "TRIM 0. 0 CD". Rotate the SELECT 1 Control until the Volume Level of the CD Input is the same as the Tuner Volume Level. Figure 35 indicates a 3. 0dB decrease in the CD Level. Figure 35 8. Rotate the SELECT 2 Control until the next desired Input Source Name is displayed. Repeat steps 6, 7 and 8 until all the Inputs with sources connected to the C500 have the same relative volume levels when switching between them. 21 Accessory Control 10. If no other adjustments are to be made at this time, press the SETUP Push-button to exit the Setup Preamp Mode or proceed to the next desired Setup Preamp Mode for adjustment. When the Trigger A or B Power Control Outputs on the C500 Controller are used, one of the Triggers may be assigned to switched On or Off by using the ACCessory Pushbutton on the supplied Remote Control. [. . . ] Ordinary meters are incapable of indicating the short interval information in a sound wave. The mass of the meter movement is too great to respond to the nearly instantaneous changes in music program material. That short interval information can have a duration less than as onehalf of one thousandth of a second. Even if the meter Figure 103 were capable of such high velocity movement, the human eye could not perceive the displayed information. [. . . ]