User manual HARMAN KARDON TU-950 TECHNICAL MANUAL

[. . . ] 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 THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU'AU FOND. 80 Crossways Park West Woodbury, NY 11797 www. harmankardon. com ©1997 Harman Kardon, Incorporated Signature 1. 5 Congratulations!As the owner of a Harman Kardon Signature Series 1. 5 Power Amplifier, you have at your command a unique product. The 1. 5 has been carefully designed to deliver the best possible sonic performance, along with outstanding industrial design, that matches other Harman Kardon Signature Series products and complements any interior design. In order to fully enjoy the performance of your amplifier, please take a few minutes to read this owner's manual. [. . . ] § Power Amp Trigger Input: Connect this jack to a matching 6- to 12-VDC trigger output on a compatible device to have the 1. 5 automatically turn on from the Standby mode when voltage is applied from the triggering unit. Note that a 3. 5mm mono mini-plug with a positive tip should be used for the connection. Due to the high-current draw of the Signature 1. 5, it is NOT recommended that the accessory outputs on the back of audio/video components be used to power this product. - TM Channel One Input: When the amplifier is being used in the two-channel (Stereo) mode, connect the right channel output of your preamp or processor to this input jack. When the amplifier is being used in the Bridged Mono mode, this jack is not used. £ Bridge/ Normal Switch: When the amplifier is used for two-channel stereo operation, this switch should be in the NORMAL position. ¢ Channel Two Output: When the amplifier is being used in the two-channel (Stereo) mode, connect the left channel speaker to the positive (+) and negative ( ) terminals. When the amplifier is being used in the Bridged Mono mode connect the Positive (+) terminal ONLY to the Positive (+) terminal on your speaker. - 5 Signature 1. 5 Note: When making any connections between source components, processors or preamplifiers and the 1. 5, or when making any connections to speakers, be certain that both the input device and the 1. 5 are turned off. To ensure that there will be no unwanted signal transients that can damage equipment or speakers, it is always best to unplug all equipment from AC power outlets before making any connections. Modern electronic products often have a "standby" mode that may be activated even though the product may appear to be turned off. Plug the AC adapter into a switched outlet that will be activated when you wish to have the amplifier turn on. This may be the switched outlet at the rear of an AV receiver or other audio equipment, an AC outlet that is part of a current sensing control unit activated by a preamp or surround processor or a switched AC wall outlet. Be careful not to cut the individual strands or twist them off; for optimal performance, all strands must be used. Next, loosen the knobs of the speaker output terminals far enough so that the cap moves back on its threads past the holes at the rear of the terminal. Making certain that you observe the correct polarity for the type of system being installed (Stereo or Bridged Mono), pass the exposed wire through the hole until the wire is visible from the bottom end. Holding the wire in place, twist the cap back so that the connection is secured. Do not overtighten or use tools, as this may damage the plastic terminal cap or break the delicate wire strands and decrease system performance. Important Note: When making speaker wire connections, be certain that none of the strands from one lead touch any other lead. This will cause a short circuit and may damage your amplifier or speakers. Damage from short circuits caused in this manner is not covered by the product warranty. Connections may also be made using spade lugs or standard 4 mm OD banana plugs. Before using a banana-type jack, make certain that the plastic screw caps on the 1. 5 are firmly tightened by turning them clockwise until they are snug against the chassis. This will ensure that the maximum surface area of the plug is in contact with the jack. [. . . ] At the conclusion of your listening session, there is no need to manually turn off the 1. 5. When the 2. 0 or other triggering device is turned off, the 1. 5 will return to the Standby mode and the LED Indicator 3 will turn amber. Important Note: If you will not be using your audio system for an extended period of time, such as during a vacation, it is always a good idea to turn the unit off using the Power Switch. This will prevent the automatic turn-on circuits from accidentally turning the system on during your absence. Operation Operation of the Signature Series 1. 5 is simple. [. . . ]