User manual MCINTOSH C220

[. . . ] Tube Preamplifier C220 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. Install in accordance with the manufacturer's instructions. [. . . ] Connect a Control Cable from the C220 TAPE DATA Note: With the addition of a McIntosh Power Controller and Remote Control Translator connected to the C220, any McIntosh Classic Components and/or non McIntosh Components connected to the C220 can be operated more conveniently. Contact your McIntosh Dealer for additional information 9 Front Panel Displays, Controls, Push-buttons and Jack BASS Control provides 12dB boost or cut with a flat center position IR Sensor receives commands from a Remote Control OUTPUTS 1 and 2 Push-buttons with indicators, allow the C220 to switch Power Control and Audio to two separate Stereo Power Amplifiers. It is also used in the setup mode for various functions Standby Power On Indicator TREBLE Control provides 12dB boost or cut with a flat center position DISPLAY indicates the Sources, Volume/Balance Levels, Operational Functions and Setup Mode Settings VOLUME Control adjusts the listening level for both channels TONE BYPASS with indicator, when activated the audio signal totally bypasses the Tone Control Circuitry. It is also used in the setup mode for various functions REC MONITOR Push-button with indicator, allows listening to the playback of REC/ TAPE Source while the recording is in process Activates the different Mute Modes STANDBY/ON Push-button switches the C220 ON or OFF (Standby) and resets the microprocessors Connection for low impedance dynamic headphones with 1/4" (0. 64cm) stereo phone type plug, for private listening 10 MONO with indicator, combines the Left and Right Channel signals for Monophonic Sound. It is also used in the setup mode for various functions SETUP Mode Push-button with indicator, allows the changing of the default settings for Inputs, Levels, Special Functions and the Display INPUT Control selects the desired audio signals for listening and recording. It is also used in the setup mode for various functions. Setup How to Operate the Setup Modes Your McIntosh C220 has been factory configured for default operating settings that will allow immediate enjoyment of superb audio without the need for further adjustments. If you wish to make changes to the factory default settings, a Setup Feature is provided to customize the operating settings using the Front Panel Alphanumeric Display. Press the STANDBY/ON Push-button to switch On the C220. Press the C220 Front Panel SETUP Push-button. The LED above the SETUP Push-button will illuminate and the Front Panel Display will indicate C220 V1. 00 or higher. Refer to figure 1. Default Settings Function Name REMOTE TUBE LED AUTOTONE ACCessory < C > TRIGger DISPLAY INPut TRIM BALANCE C220 Setting NORMal ON ON MAIN TUNER > -7 TUNer > TUNer 0. 0 TUNner 00 V_. _ _ Page No. Note: The Red LED above the STANDBY/ON Push-button lights to indicate the C220 is in Standby mode. Note: The Front Panel Display will indicate C220 V1. 00 or higher the first time, after that it will display whatever Setup Mode was last accessed. 13 13 13 13 13 12 12 11 16 11 Firmware Version The C220 functionality is controlled by internal software that is know as Firmware. The Version of the Firmware in the C220 can be identified at any time by utilizing the Setup Mode. Press the SETUP Push-button to access the Setup Mode. Press the Menu or Menu Push-button until C220 V1. 00 or higher appears. The number after the character "V" is the Firmware number. Press the SETUP Push-button to exit the Setup Mode. Figure 1 3. Press Menu (MONO) Push-button and notice that with each press of the push-button, the Setup Mode goes forwards through ten different possible adjustment selections and one informational display. Press Menu (TONE BYPASS) Push-button and notice that with each press of the push-button, the Setup Mode goes backwards through the possible adjustment selections and one informational display. To exit from a specific Setup Mode, press the SETUP Push-button a second time. The LED above the SETUP Push-button will extinguish and the Front Panel Display will revert back to its normal display. Refer to figure 2. Balance For information on using the Balance adjustment, refer to "How to Operate, Balance (Trim Function)" on page 16. Trim Level Adjustment Figure 2 Default Settings The Default Settings Chart at the top of the page (right column) indicate the Function Name, default Settings and the page number for instructions on how to change it. Source Components can have slightly different volume levels resulting in the need to readjust the C220 Volume Control when switching between different sources. The C220 allows the adjustment of levels for each of the Source Inputs for the same relative volume. [. . . ] Setup Pressing the SETUP Push-button activates the Setup Mode of the C220 and allows customizing various operating functions. Refer to page 14 for additional information. Mute Press the MUTE Push-button, on the C220 Front Panel or on the Remote Control, to Mute the Audio at the OUTPUTS Connectors and HEADPHONES Output Jack. The Front Panel Alphanumeric Display will indicate the Input Source Name followed by the word MUTE in place of the actual volume setting. [. . . ]