In Case Of Difficulty - Kenwood KR-797 Instruction Manual

In case of difficulty

What appears to be a mulfunction may not always be serious. If your unit should not perform as expected, consult the table
below to see if the problem can be corrected before seeking help from your dealer or service representative.
28
Operation to reset
The microcomputer may fall into malfunction (impossibility to
operate, erroneous display, etc.) when the power cord is unplugged
while power is ON or due to an external factor. In this case, execute
the following procedure to reset the microcomputer and return it to
normal condition.
Amplifier
Symptom
Sound is not output or the volume level is
low.
The STANDBY indicator blinks and sound is
not output.
Sound is not output from one of the speak-
ers.
Sound is not output from the surround
speaker and/or center speaker, or their sound
is very small.
A hum noise is generated when the PHONO
input is selected.
System control is not available when TAPE1
or MD is selected.
System control is not available.
Display is dimly lit.
Tuner
Symptom
Radio stations cannot be received.
Interference.
A station which was preset cannot be re-
ceived by pressing the corresponding nu-
meric key.
1 Unplug the AC power plug from the wall outlet.
2 While holding the POWER switch depressed, plug the AC
÷ Please note that resetting the microcomputer clears the contents
stored in and returns to the condition when it left the factory.
Cause
÷ The speaker cords are disconnected.
÷ MUTE is ON.
(The MUTE ON indicator is blinking)
÷ The SPEAKERS keys are set to OFF.
÷ The TAPE 2 MONITOR key is set to ON.
÷ Speaker cords are short-circuited.
÷ The speaker cord is disconnected.
÷ The BALANCE control is set to an extreme
position.
÷ The surround speaker cords and/or center speaker
cord are disconnected.
÷ The Surround play mode has not been engaged.
÷ The surround and center speaker levels are set to
the minimum positions.
÷ The audio cord from the turntable is not inserted
securely into the PHONO jacks.
÷ The turntable is not grounded.
÷ "TAPE1" or "MD" is not displayed.
÷ The XS8 and SL16 modes were switched while
the AC plug is left plugged into the wall power
outlet.
÷ The setting is not correct.
Cause
÷ No antenna is connected.
÷ The broadcast band is not set properly.
÷ The frequency of the desired station is not tuned.
÷ Noise due to ignition noise of an automobile.
÷ Noise due to an influence from an electric appli-
ance.
÷ Noise due to a nearby TV set.
÷ The preset station belongs to a frequency that
cannot be received.
÷ The preset memory was cleared because the
power cord had been unplugged for a long period
of time.
÷ The TUNER input is not selected.
plug into the power outlet.
÷ Connect them properly referring to "Connec-
tion of speakers".
÷ Press the MUTE key to OFF.
÷ Set the SPEAKERS key to ON.
÷ Set the TAPE 2 MONITOR key to OFF.
Set the input selector to the position other than
tuner.
÷ Turn the power off, eliminate the short-circuit-
ing, then turn on the power again.
÷ Connect it properly referring to "Connection of
speakers".
÷ Adjust the Left/Right balance.
÷ Connect them properly referring to "Connec-
tion of speakers".
÷ Set the presence mode.
÷ Adjust the surround and center speaker levels.
÷ Insert the audio cord plugs securely into the
PHONO jacks.
÷ Connect the grounding wire to the GND termi-
nal on the rear panel.
÷ Switch the display to TAPE 1 or MD.
÷ Unplug the AC plug from the wall outlet and
switch the XS8 or SL16 mode as required.
÷ Adjust the brightness with the DISPLAY key.
÷ 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 system farther away from the TV
set.
÷ Preset a station with a receivable frequency.
÷ Preset the station again.
÷ Select the TUNER input.
KR-897/KR-797 (En)
Remedy
78
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78
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78
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45
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Remedy
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