Onkyo HT-R420 appendix Troubleshooting, Symptoms Causes Remedies, Tuner, Other

Troubleshooting

Symptoms Causes Remedies Pages

Too much noise is heard or sound is interrupted occasionally. (The FM STEREO indicator does not light steadily.)

•FM stereo waves may produce a hiss noise when a certain level is reached.

•The position or direction of the FM antenna is incorrect.

•The station is too weak.

• Press the FM MODE button to go off the	22
FM STEREO indicator.
• Adjust the position, height, and direction	14, 15
of the FM antenna.
• Connect an FM outdoor antenna. Try to	15
use an antenna with more elements.
[For installation of the outdoor antenna,

consult your nearest dealer as it requires special skills and experience.]

Tuner

Recording

Other

Sound is distorted or	• The radio wave is distorted.	–	–
sound volume decreases.	• Cars are running or airplanes are flying	–	–
	near the house.
Sound is excessively	• There is a tall building or a mountain	–	–
distorted.	nearby.
	[The waves transmitted from the
	transmission center (direct waves) and
	the waved reflected by buildings or
	mountains (diffraction waves) interfere
	with each other causing multi pass
	distortion.]
No preset channels are	• The power cord is unplugged for a long	• The preset data in memory is lost. Preset	23
selected.	time.	the radio stations again.
Sound is reproduced from	• The sound system you are trying to	• Make an analog connection.	32
the speakers but not	record is DTS or Dolby Digital surround.
recorded.
LATE NIGHT function	• Playback source is not Dolby Digital	• Check that the Ÿ DIGITAL indicator lights	17
cannot be used.	encoded.	up in the display.
Multichannel audio is not	• Input signal format is set to “Auto” or	• Set the input signal format to “Multich”.	26
output.	“Analog”.
	• The component is not connected to the	• Check that the multichannel output jacks	11
	DVD jacks.	of the component is connected to the
		DVD FRONT L/R, SURROUND L/R,
	• The DVD player output settings are	CENTER and SUBWOOFER jacks.	–
		• See the instruction manual supplied with
	incorrect.	your DVD player, and check that it is set
		for multi channel output.

Memory Preservation

This unit does not require memory preservation batteries.

Abuilt-in memory power backup system preserves the contents of memory during power failures and even when the power cord is unplugged.

The power cord must be plugged in order to charge the backup system. The memory preservation period after the unit has been turned off varies depending on climate and placement of the unit. On average, memory contents are protected over a period of a few weeks after the time the unit has been turned off. This period is shorter when the unit is exposed to a very humid climate.

When incorrect operation is observed

¥The HT-R420 contains an internal microcomputer that performs high-level operations. However, on extremely rare occasions, noise or interference from an external source or static electricity may cause faulty operation. If this occurs, unplug the power cord from the wall outlet, wait five or more seconds, and then plug it back in. This should correct the situation.

¥To reset the surround mode and other settings to the factory default settings, hold down the VIDEO 1 button with the HT-R420 turned on and then press the STANDBY/ON button. ÒClearÓ appears in the front display and the HT-R420 enters the standby state.

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