Onkyo TX-NR901 Owner Manual - Page 99
Troubleshooting
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59/3@&OCPPL 1BHF 8FEOFTEBZ 0DUPCFS Troubleshooting If you have any trouble using your TX-NR901, look for a solution in this section. If you can't resolve the issue yourself, contact your Onkyo dealer. Power Can't turn on the TX-NR901? • Make sure that the power cord is properly plugged into the wall outlet. (Non-American and Australian models: make sure that the other end of the power cord is properly connected to the TX-NR901's AC INLET.) • Unplug the power cord from the wall outlet, wait five seconds or more, then plug the cable in again. The TX-NR901 turns off as soon as it's turned on? • The amp protection circuit has been activated. Remove the power cord from the wall outlet immediately and contact your Onkyo dealer. Audio There's no sound, or it's very quiet? • Make sure that all audio connecting plugs are pushed in all the way (page 26). • Make sure that the inputs and outputs of all compo- nents are connected properly (page 26). • Make sure that the polarity of the speaker cables is correct and that the bare wires are in contact with metal part of each speaker terminal (page 23) • Make sure that the input source is properly selected (page 51). • Check the volume. It can be set from 0 to 100 (page 51). The TX-NR901 is designed for home theater enjoyment. It has a wide volume range, allowing precise adjustment. • If the MUTING indicator is shown on the display, press the remote controller's [MUTING] button to unmute the TX-NR901 (page 52). • While a pair of headphones is connected to the PHONES jack, no sound is output by the speakers (page 52). • Check the digital audio output setting on the connected device. On some games consoles, such as those that support DVD, the default setting is off. • With some DVD-Video discs, you need to select an audio output format from a menu. • Make sure that the correct input signal audio format is selected with the [AUDIO SELECTOR] button (page 53). • To use a turntable with an MC-type cartridge requires a commercially available MC phono preamp (page 35). • Make sure that none of the connecting cables are bent, twisted, or damaged. • Not all listening modes use all of the speakers (page 56). • Specify the speaker distances (page 43) and adjust the individual speaker levels (page 44). Only the front speakers produce sound? • When the Stereo listening mode is selected, only the front speakers and subwoofer produce sound. • When the Direct or Pure Audio listening mode is selected, only the front speakers produce sound. • Make sure the speakers are configured correctly (page 41). Only the center speaker produces sound? • If you use the Pro Logic II Movie or Pro Logic II Music listening mode with a mono source, such as an AM radio station or mono TV program, the sound is concentrated in the center speaker. • Make sure the speakers are configured correctly (page 41). The surround speakers produce no sound? • When the Stereo, Direct, or Pure Audio listening mode is selected, the surround speakers produce no sound (page 56). • Depending on the source and current listening mode, not much sound may be produced by the surround speakers. Try selecting another listening mode. • Make sure the speakers are configured correctly (page 41). The center speaker produces no sound? • When the Mono, Stereo, Direct, or Pure Audio listen- ing mode is selected, the center speaker produces no sound (page 56). • When the Orchestra listening mode is selected, the center speaker produces no sound (page 57). • Make sure the speakers are configured correctly (page 41). The surround back speakers produce no sound? • The surround back speakers are not used with all lis- tening modes. Select another listening mode (page 56). • Not much sound may be produced by the surround back speakers with some sources. • If you are using the Dolby Digital EX or THX Surround EX listening mode, make sure that mode is set to On (see "Using the Digital Surround Modes" on page 60). • Make sure the speakers are configured correctly (page 41). The subwoofer produces no sound? • When you play source material that contains no infor- mation in the LFE channel, the subwoofer produces no sound. • Make sure the speakers are configured correctly (page 41). 99