System Installation
After unpacking the unit, and placing it on a solid surface capable of supporting its weight, you will need to make the connections to your audio and video equipment.
Audio Equipment Connections
We recommend that you use high-quality interconnect cables when making connections to source equipment and recorders to preserve the integrity of the signals.
When making connections to audio source equipment or speakers it is always a good practice to unplug the unit from the AC wall outlet. This prevents any possi- bility of accidentally sending audio or transient signals to the speakers that may damage them.
1.Connect the analog output of a CD player to the CD Inputs £.
NOTE: When the CD player has both fixed and vari- able audio outputs it is best to use the fixed output unless you find that the input to the receiver is so low that the sound is noisy, or so high that the signal is distorted.
2.Connect the analog Play/Out jacks of a cassette deck, MD, CD-R or other audio recorder to the Tape Input Jacks ∞. Connect the analog Record/In jacks on the recorder to the Tape Output Jacks ¢ on the AVR 225.
3.Connect the output of any digital sources to the appropriate input connections on the AVR 225 rear panel. The Optical and Coaxial Digital Inputs be#$ may be used with a Dolby Digital or DTS source such as a DVD player, or the output of a conventional CD or LD player’s PCM (S/P-DIF) output.
4.Connect the Optical Digital Audio Output ‡ or the Coaxial Digital Audio Output ° on the rear panel of the AVR 225 to the matching digital input connections on a CD-R or MiniDisc recorder.
5.Assemble the AM Loop Antenna supplied with the unit as shown below. Connect it to the AM and GND Screw Terminals ¡.
6.Connect the supplied FM antenna to the FM Antenna (75-Ohm) Connection ™. The FM anten- na may be an external roof antenna, an inside pow- ered or wire lead antenna or a connection from a
cable TV system. Note that if the antenna or connec- tion uses 300-ohm twin-lead cable, you must use the 300-ohm-to-75-ohm adapter supplied with the unit to make the connection.
7.If you have a DVD-Audio or SACD player, or other component that includes an onboard surround decoder and 6-channel line-level audio outputs, you may connect these audio outputs to the 6-Channel Direct Inputs i.
8.Connect the front, center and surround Speaker Outputs ª‚⁄¤‹ to the respective speakers.
To ensure that all the audio signals are carried to your speakers without loss of clarity or resolution, we sug- gest that you use high-quality speaker cable. Many brands of cable are available and the choice of cable may be influenced by the distance between your speakers and the receiver, the type of speakers you use, personal preferences and other factors. Your dealer or installer is a valuable resource to consult in select- ing the proper cable.
Regardless of the brand of cable selected, we recommend that you use a cable constructed of fine, multistrand copper with a gauge of 14 or smaller. Remember that in specifying cable, the lower the number, the thicker the cable.
Cable with a gauge of 16 may be used for short runs of less than 10 feet. We do not recommend that you use cables with an AWG equivalent of 18 or higher due to the power loss and degradation in performance that will occur.
Cables that are run inside walls should have the appro- priate markings to indicate listing with UL, CSA or other appropriate testing agency standards. Questions about running cables inside walls should be referred to your installer or a licensed electrical contractor who is famil- iar with the NEC and/or the applicable local building codes in your area.
When connecting wires to the speakers, be certain to observe proper polarity. Remember to connect the “negative” or “black” wire to the same terminal on both the receiver and the speaker. The AVR 225 con- forms to the latest CEA-recommended color-coding for speaker terminals. Accordingly, the positive (+) terminal, which was previously red, is now a specific color to assist you in making the correct connections. If your speakers have color-coded connections, match the terminal on the AVR 225 to the like terminal on your speakers. For existing speakers with a red termi- nal for the positive connection, the connections on the AVR 225 are as follows:
Front Left = White | Front Right = Red |
Center = Green | |
Surround Left = Blue | Surround Right = Gray |
NOTE: While most speaker manufacturers adhere to an industry convention of using black terminals for negative and red ones for positive, some manufactur- ers may vary from this configuration. To ensure proper phase and optimal performance, consult the identifica- tion plate on your speaker or the speaker’s manual to verify polarity. If you do not know the polarity of your speaker, ask your dealer for advice before proceeding, or consult the speaker’s manufacturer.
We also recommend that the length of cable used to connect speaker pairs be identical. For example, use the same length piece of cable to connect the front-left and front-right or surround-left and sur- round-right speakers, even if the speakers are a different distance from the AVR 225.
9.Connections to a subwoofer are normally made via a line-level audio connection from the Subwoofer Output • to the line-level input of a subwoofer with a built-in amplifier. When a passive subwoofer is used, the connection first goes to a power amplifier, which will be connected to one or more subwoofer speakers. If you are using a powered subwoofer that does not have line-level input connections, follow the instruc- tions furnished with the speaker for connection information.
Video Equipment Connections
Video equipment is connected in the same manner as audio components. Again, the use of high-quality inter- connect cables is recommended to preserve signal quality.
Although any compatible video device may be con- nected to any video input (with the exception of the Video 1 and Video 2 Out Jacks dg34 35
3839 , which may only be connected to a video recorder), to make programming device codes into the remote control easier, we recommend that you connect your VCR to the Video 1 Connectors cd
3233 34 35 , your television to the Video 2 Input Connectors f36 37 , and your cable-TV converter or satellite receiver to the Video 3 Input Connectors
h40 41 .
1.Connect a VCR’s or other video source’s audio and video Play/Out jacks to the Video 1 or Video 2 In Jacks cf32 33 36 37 on the rear panel. The Audio and Video Record/In jacks on the VCR should be connected to the Video 1 or Video 2 Out Jacks dg34 35 38 39 on the AVR 225.
