Harman Kardon ST350 Owners Manual - Page 3
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INSTALLATION PROCEDURE Ventilation: The ST350 tuner is well ventilated in itself. Great care has been given to the design and chassis layout to insure proper component placement. The power transformer is extra heavy duty to reduce heat build up. It is necessary, however, to allow sufficient space around the tuner to permit proper air flow. Install the tuner in a manner to allow for unrestricted circulation. When mounting into a cabinet cut holes to the rear and above the tuner to allow the hot air to escape. Also allow at least 3" of space above the tubes. Do not place 'books or other objects on the cage or in the immediate vicinity of the tuner when installing on a bookshelf or table. This will reduce the air flow and may cause damage to the tubes and components. One further word of caution. When installing the tuner into a cabinet do not place it directly over the amplifier. Allow as much room as possible between the two instruments. The heat generated by the amplifier may cause deterioration of tuner components and performance. Power Requirements: Plug the AC cord into any outlet furnishing 117 volts, 50 or 60 cycle, AC current. The voltage may vary between 105 and 125 volts. An AC convenience receptacle is located on the rear panel of the tuner. You may us it as a power source for your tape player or phonograph. The total wattage is not to exceed 200 watts. Connecting The ST350 To An Amplifier: There are two output receptacles on the right rear of the tuner chassis. They are used to connect the ST350 to your monophonic or stereophonic amplifier. All connection between the tuner and amplifier must be made wih low-capacity shielded cable to prevent hum and noise pickup. Any length up to 50 feet may be used as the ST.3.50 has a special cathode follower output. Monophonic Connection: Attach a shielded cable between the tuner or auxiliary input of your monophonic amplifier and either the left or right output receptacle on the rear panel of the ST350 tuner. Stereophonic Simulcast And FM Multiplex Connection: Attach a shielded cable between each of the two outputs on the ST350 and the two tuner or auxiliary inputs of your stereophonic amplifier. The usual procedure is to connect the FM STEREO output to the left tuner or auxiliary input on your amplifier and the AM STEREO output to the right tuner or auxiliary amplifier input. This permits AM-FM simulcast reception or FM-Multiplex reception if the Harman-Kardon Model MA350 plug-in multiplex adapter is used with the tuner. AM Antenna: The AM swivel loopstick antenna on the rear of the ST350 chassis comprises all the antenna required for normal signal areas. In more remote locations an additional outdoor antenna may be required. This should consist of a single wire,