Kenwood KRF-V7050D Instruction Manual

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Kenwood KRF-V7050D Instruction Manual Manual pdf 36 page image

36Additional InformationResetting the MicrocomputerThe microcomputer may malfunction (unit cannot be operated,or shows an erroneous display) if the power cord is un-plugged while the power is ON, or due to some other externalfactors. If this happens, execute the following procedure toreset the microcomputer and return the unit to its normaloperating condition.In case of difficultyAmplifierCause• The speaker cords are disconnected.• VOLUME is set to the minimum position.• MUTE is ON.• The SPEAKERS switches are set to OFF.• Speaker cords are short-circuited.• The speaker cord is disconnected.• The surround speaker cords and/or the centerspeaker cord is disconnected.• A surround mode has not been engaged.• The surround and/or center volume controls areset to the minimum level.• The audio cord from the turntable is not con-nected to the PHONO jacks.• The turntable is not grounded.• There are many possible causes for this prob-lem, depending on the type of DVD player used.• The input mode is set to digital manual.• The software is copy-guarded.Remedy• Connect them properly referring to “Connectingthe speakers” $• Adjust the volume to a proper level.• Turn OFF the MUTE. )• Set the SPEAKERS switch(es) to ON. *• Turn the power off, eliminate the short-circuit-ing, then turn on the power again.• Connect it properly referring to “Connecting thespeakers”. $• Connect it properly referring to “Connecting thespeakers”. $• Select a surround mode.• Adjust the speaker levels using the test tone.&• Insert the audio cord plugs securely into thePHONO jacks.• Connect the grounding wire to the GND termi-nal on the rear panel.• Set the input mode to digital manual beforestarting playback of the Dolby Digital source.7• Press the INPUT MODE key to select to digitalauto mode. 7• Copy-guarded video software cannot be re-corded.TunerCause• No antenna is connected.• The broadcast band is not set properly.• The frequency of the desired station is nottuned.• Noise due to ignition noise from an automobile.• Noise due to interference from an electric appli-ance.• Noise due to a nearby TV set.• The preset station belongs to a frequency thatcannot be received.• The preset memory was cleared because thepower cord had been unplugged for a longperiod of time.Remedy• Connect an antenna. @• Set the broadcast band properly.• Tune the frequency of the desired station.™• Install the outdoor antenna away from the road.• Turn off the power to the appliance.• Install the receiver farther away from the TV.• Preset a station with a receivable frequency.• Preset the station again.SymptomRadio stations cannot be received.Interference.A station which was preset cannot be re-ceived by pressing the corresponding nu-meric key.SymptomNo sound from the speakers.The standby indicator blinks and sound isnot output.Sound is not output from one of the speakers.Sound is not output from the surroundspeakers and / or the center speaker, or theirsound is very small.A humming noise is generated when thePHONO input selector is selected.When playing a Dolby Digital source signalusing a DVD player, the sound is cut off soonafter it starts.No sound is produced during playback froma DVD player.A video source cannot be recordednormally.With the power cord plugged in, turn the POWER keyOFF. Then, while holding down the ON/STANDBY key,press POWER key.• Please note that resetting the microcomputer will clear the contents ofthe memory and returns the unit to the state it was in when it left thefactory.