Kenwood VR-9050 In case of difficulty, 34 EN

In case of difficulty

Resetting the Microcomputer

The microcomputer may malfunction (unit cannot be operated, or shows an erroneous display) if the power cord is unplugged while the power is ON, or due to some other external factor. If this happens, execute the following procedure to reset the microcomputer and return the unit to its normal operating condition.

Unplug the power cord from the wall outlet, then plug it back in while holding down the (POWER ON/STANDBY) key.

•Please note that resetting the microcomputer will clear the contents of the memory and returns the unit to the state it was in when it left the factory.

Amplifier

Symptom	Cause	Remedy
No sound from the speakers.	• The speaker cords are disconnected.	• Connect them properly referring to
		“Connecting the speakers”	%
	• VOLUME is set to the minimum position.	• Adjust the volume to a proper level.
	• MUTE is ON.	• Turn OFF the MUTE.	¡
	• The SPEAKERS switches are set to OFF.	• Set the SPEAKERS switches to ON.	)
	• Headphones are connected to the PHONES	• Unplug the headphones plug.	™
	jack.
The STANDBY indicator blinks and sound is	• Speaker cords are short-circuited.	• Turn the power off, eliminate the short-
not output.		circuiting, then turn on the power again.
Sound is not output from one of the speakers.	• The speaker cord is disconnected.	• Connect it properly referring to “Connecting
		the speakers”.	%
	• The speaker is not set up correctly.	• Set it up properly referring to “Speaker set-
		tings”.	&
Sound is not output from the surround	• The surround speaker cords and/or the center	• Connect it properly referring to “Connecting
speakers and / or the center speaker, or their	speaker cord is disconnected.	the speakers”.	%
sound is very small.	• The speaker is not set up correctly.	• Set it up properly referring to “Speaker set-
		tings”.	&
	• A surround mode has not been engaged.	• Select a surround mode.
	• The surround and/or center volume controls	• Adjust the speaker levels using the test tone.
	are set to the minimum level.		*
A humming noise is generated when the	• The audio cord from the record player is not	• Insert the audio cord plugs securely into the
PHONO input selector is selected.	connected to the PHONO jacks.	PHONO jacks.
	• The record player is not grounded.	• Connect the grounding wire to the GND
		terminal on the rear panel.
When playing a Dolby Digital source signal	• There are many possible causes for this	• Set the input mode to digital manual before
using a DVD player, the sound is cut off soon	problem, depending on the type of DVD player	starting playback of the Dolby Digital source.
after it starts.	used.		8
No sound is produced during playback from	• The input mode is set to digital manual.	• Press the INPUT MODE key to select to full
a DVD player.		auto mode.	8
A video source cannot be recorded	• The software is copy-guarded.	• Copy-guarded video software cannot be
normally.		recorded.

Tuner

Symptom	Cause	Remedy
Radio stations cannot be received.	• No antenna is connected.	• Connect an antenna.	^
	• The broadcast band is not set properly.	• Set the broadcast band properly.
	• The frequency of the desired station is not	• Tune the frequency of the desired station.
	tuned.		¢
Interference.	• Noise due to ignition noise from an automobile.	• Install the outdoor antenna away from the
		road.
	• Noise due to interference from an electric	• Turn off the power to the appliance.
	appliance.	• Install the receiver farther away from the TV.
	• Noise due to a nearby TV set.
A station which was preset cannot be	• The preset station belongs to a frequency that	• Preset a station with a receivable frequency.
received by pressing the corresponding	cannot be received.	• Preset the station again.
numeric key.	• The preset memory was cleared because the
	power cord had been unplugged for a long
	period of time.

34 EN