Kenwood HD-7 - Manual (Page 42)

HD-7/EN
42
Knowledge
In case of difficulty
What seems to be a malfunction is not always so. Before calling for service, check the following table
according to the symptom of your trouble.
Operation to reset
The microcomputer may fall into malfunction (impossi-
bility to operate, erroneous display, etc.) when the
power cord is unplugged while unit is ON or due to an
external factor. In this case, execute the following pro-
cedure to reset the microcomputer and return it to nor-
mal condition.
Unplug the power cord from the power outlet, then
while holding the set key on the main unit depressed,
plug the power cord again.
÷ Please note that resetting the microcomputer
clears the contents stored in and it returns to condi-
tion when it left the factory.
Amplifier section/Speakers
Sound is not produced.
The "standby/timer" indicator blinks in
red and no sound is output.
The "standby/timer" indicator blinks in
green.
No sound from the headphones.
Sound is not produced from the left or
right speakers.
Power is suddenly interrupted.
The clock display blinks without chang-
ing the figures.
Timer operation is not possible.
Remedy Cause Symptom
÷ Connect properly referring to “System con-
nection”.
÷ Set the sound volume to an appropriate
÷ Switch MUTE OFF.
÷ Unplug the headphone plug.
÷ Turn power off and re-connect the speaker
cord.
÷ Adjust the present time again.
÷ Adjust the present time again.
÷ Insert correctly.
÷ Connect properly referring to “System con-
nection”.
÷ Adjust the left/right volume balance.
÷ Cancel the A.P.S. function.
÷ Adjust the present time referring to “Clock
adjustment”.
÷ Adjust the present time referring to “Clock
adjustment”.
÷ Set the timer ON time and OFF time.
÷ Set the timer OFF time later than the timer
ON time.
÷ Refer to "Setting the timer program (PROG.
TIMER)" and select "ON" for "PROG. 1" or
"PROG. 2".
÷ The speaker cords are disconnected.
÷ The volume control of this set is not ad-
justed properly.
÷ The MUTE switch of remote control unit is
switched ON.
÷ The headphone plug is inserted into the
jack.
÷ The speaker cord is short-circuited.
÷ There was a power failure.
÷ The power cord was unplugged from the
outlet.
÷ The headphone plug is inserted incom-
pletely.
÷ The speaker cords are disconnected.
÷ Left/right volume balance is not adjusted
properly.
÷ The A.P.S. function is activated
÷ The power plug was unplugged from the
outlet while the power switch was ON, or
there was a power failure.
÷ The present time has not been adjusted or
there was a power failure.
÷ The timer ON time and OFF time have not
been set.
÷ The same setting is used for the timer ON
time and the timer OFF time.
÷ The timer execution was not set up.
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