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** You can connect an active sub woofer to either of the two jacks. The remaining jack can be used to connect a second active sub woofer. z To connect certain speakers to another amplifier Use the PRE OUT jacks. The same signal is output from both the SPEAKERS jacks and the PRE OUT jacks. For example, if you want to connect just the front speakers to another amplifier, connect that amplifier to the PRE OUT FRONT L and R jacks. Notes on speaker system hookup • Twist the stripped ends of the speaker cords about 2/3 inch (10 mm). Be sure to match the speaker cord to the appropriate terminal on the components: + to + and – to –. If the cords are reversed, the sound will be distorted and will lack bass. • If you use front speakers with low maximum input rating, adjust the volume carefully to avoid excessive output on the speakers. 16 To avoid short-circuiting the speakers Short-circuiting of the speakers may damage the receiver. To prevent this, make sure to take the following precautions when connecting the speakers. Make sure the stripped ends of each speaker cord do not touch another speaker terminal or the stripped end of another speaker cord. Examples of poor conditions of the speaker cord Stripped speaker cord is touching another speaker terminal. Stripped cords are touching each other due to excessive removal of insulation. After connecting all the components, speakers, and AC power cord, output a test tone to check that all the speakers are connected correctly. For details on outputting a test tone, see page 22. If no sound is heard from a speaker while outputting a test tone or a test tone is output from a speaker other than the one whose name is currently displayed on the receiver, the speaker may be short-circuited. If this happens, check the speaker connection again. Speaker impedance To enjoy multi channel surround, connect front, center, and rear speakers with a nominal impedance of 8 ohms or higher, and set the speaker IMPEDANCE SELECTOR to “8W.” Check the instruction manual supplied with your speakers if you’re not sure of their impedance. (This information is usually printed on a label on the back of the speaker.) You may connect a pair of speakers with a nominal impedance between 4 and 8 ohms to all of the speaker terminals. However, even if one speaker within this range is connected, set the IMPEDANCE SELECTOR to “4W”. Note Be sure to connect front speakers with a nominal impedance of 8 ohms or higher if you want to select both sets (A+B) of front speakers (see page 30). In this case, set the IMPEDANCE SELECTOR to “4W”. Hooking 17 Performing Initial Setup Operations Hooking Up and Setting Up the Speaker System Once you have hooked up the speakers and turned on the power, clear the receiver’s memory. Then specify the speaker parameters (size, position, etc.) and perform any other initial setup operations necessary for your system. Before turning on the receiver Make sure that you have: • Turned MASTER VOLUME to the leftmost position (0). • Selected the appropriate front speakers (see “wj SPEAKERS selector” on page 30). Clearing the receiver’s memory Before using your receiver for the first time, or when you want to clear the receiver’s memory, do the following. This procedure is not necessary if the demonstration activates when you turn the power on. 1/u 1 Turn off the receiver. 2 Hold down ?/1 for 5 seconds. The currently selected function, followed by the demonstration message appears in the display. All of the following items are reset or cleared: • All preset stations are reset or cleared. • All sound field parameters are reset to their factory settings. • All index names (of preset stations and program sources) are cleared. • All adjustments made with the SET UP button are reset to their factory settings. • The sound field memorized for each program source and preset stations are cleared. Performing initial setup operations Before using your receiver for the first time, use the SET UP button to adjust the setup parameters so that they correspond to your system. You can adjust the following items. For details on how to make adjustments, see the page in parenthesis. • Speaker size and placement (pages 19~22). • Speaker distance (page 19). • Whether other components will turn on or off automatically via the CONTROL A1 control system (page 53). • Whether the display turns off or not when you press DIMMER (page 54). • STR-DB940 only: – 2 way remote control system operation (page 53). – Selecting the color of the on-screen display (page 54). – Select the TV color system of the monitor (except for models of area U, CA) (page 54). Demonstration Mode The demonstration will activate the first time you turn on the power. When the demonstration starts, the following message appears in the display twice: “Now Demonstration Mode!! To finish the demonstration, please push POWER KEY while this message appears in the display. Thank you!” To cancel the demonstration Press ?/1 to turn the receiver off during...

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