Pioneer VSX-919AH-K manual Other audio problems, Phase Control

Additional information 12

Other audio problems

SymptomRemedy

Broadcast stations cannot be selected automatically, or there is considerable noise in radio broadcasts.

For FM broadcasts

•Fully extend the FM wire antenna, adjust the position for best reception and secure to a wall, etc.

•Use an outdoor antenna for better reception (see page 30).

For AM broadcasts

	• Adjust the position and direction of the AM antenna.
	• Use an outdoor antenna for better reception (see page 30).
	• Noise may be caused by interference from other equipment, such as a
	fluorescent light, motor, etc. Switch off or move the other equipment, or move
	the AM antenna.
A multichannel DVD source	• Make sure that the multichannel analog inputs are selected (see Selecting the
appears to be downmixed to	multichannel analog inputs on page 42).
2 channels during playback.
Noise is output when	• This is not a malfunction of the receiver. The scan function of your player
scanning a DTS CD.	alters the digital information, making it unreadable, resulting in noise being
	output. Lower the volume when scanning.

When playing a DTS format LD there is audible noise on the soundtrack.

•Make sure that the input signal type is set to DIGITAL (see Choosing the input signal on page 58).

Can’t record audio.	• You can only make a digital recording from a digital source, and an analog
	recording from an analog source.
	• For digital sources, make sure that what you’re recording isn’t copy protected.
	• Check that the OUT jacks are properly connected to the recorders input jacks
	(see Connecting other audio components on page 29).

Subwoofer output is very low. • To route more signal to the subwoofer, set it to PLUS or set the front speakers

	to SMALL (see Speaker Setting on page 95).
Everything seems to be set up	• The speakers may be out of phase. Check that the positive/negative speaker
correctly, but the playback	terminals on the receiver are matched with the corresponding terminals on the
sound is odd.	speakers (see Connecting the speakers on page 18).
The PHASE CONTROL	• If applicable, check that the lowpass filter switch on your subwoofer is off, or
feature doesn’t seem to have	the lowpass cutoff is set to the highest frequency setting. If there is a PHASE
an audible effect.	setting on your subwoofer, set it to 0º (or depending on the subwoofer, the
	setting where you think it has the best overall effect on the sound).
	• Make sure the speaker distance setting is correct for all speakers (see Speaker
	Distance on page 97).
Noise or hum can be heard	• Check that personal computers or other digital components connected to the
even when there is no sound	same power source are not causing interference.
being input.
There seems to be a time lag	• See Automatically setting up for surround sound (Auto MCACC) on page 37 to
between the speakers and	set up your system again using MCACC (this will automatically compensate for
the output of the subwoofer.	a delay in the subwoofer output).
The maximum volume	• Check that the Volume Limit is set to OFF (see Volume Limit Setup on
available (shown in the front	page 100).
panel display) is lower than
the +12dB maximum.

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