Before requesting service for this unit, check the chart below for
a possible cause of the problem you are experiencing. Some sim-
ple checks or a minor adjustment on your part may eliminate the
problem and restore proper operation.
If you are in doubt about some of the check points, or If the
remedies indicated in the chart do not solve the problem, refer to
the directory of authorized service centers (enclosed with this
unit) to locate a convenient service center, or consult your
Technics dealer for instructions.
(In U.S.A. consult MSC Authorized Servicenters for detailed In-
structions.)
Problem Probable cause(s) I Suggested remedy
While listening to FM broadcasts
An unusual hissing noise is
heard when listening to the
broadcast in stereo, but not
heard when listening
monaurally.
Noise Is excessive In both
stereo and monaural broad-
casts.
The FM stereo indicator or
the quartz lock Indicator
flickers, without completely
Illuminating.
Excessive distortion in the
sound of stereo broad-
casts.
A slight noise may be heard because the method
used for modulation of FM stereo broadcasts is
different than that used for monaural broadcasts.
Poorlocationand/or directionof the antenna
Transmittingstationis too far away.
Poor locationandlor direction of the antenna
TransmittingstationIs too far away.
Nearbybuildingor mountain
• Try reducing the treble sound by using the treble con-
trol.
• Try changing the location, height andlor direction of
the antenna.
• If an indoor antenna is being used, change to an
outdoor antenna.
• Try using an antenna with more elements.
• Try changingthe location, heightandlor directionof
the antenna.
• If an Indoor antennaIs beingused, changeto an
outdoorantenna.
• Try usingan antennawith more elements.
While listening to AM broadcasts
An unusual "beat" sound Is
heard.
A low.pitched =hum" sound
Is heard when the
broadcast is tuned.
A strange hissing noise Is
produced continuously or
Intermittently.
The unitis being used at the same time as the
televisionset.
Interferencefrom adjacent broadcastsignals
The AM loop antenna connection wires are too
close to the power cord.
Causedbythe "discharge phenomenon"and the
"oscillation phenomenon"of electric appliances
(suchas fluorescent lights,TV, small series-type
motors,rectificationequipment,etc.).
• Turn off the television set, or use this unitfarther
away from it.
• Try reducingthetreble soundby usingthetreblecon-
trol.
• Place the antennaconnectionwires and the power
cord farther apart.
• Try placingthis unitfarther awayfrom such eClulp-
ment.
Problems noted at all times
Power will not switch ON. The power cord plug is not completely inserted.
No sound Is heard.
Sound stops during a
performance, or no sound
Is heard when the power Is
switched ON.
(The word "OVERLOAD"
appears on the display.)
The word "ERROR"
appears on the display.
BothA and B speakersare turndOFF.
The tape monitorfunction isON.
The mutingfunction isON.
Connectionsare incompleteor Incorrect to the
speaker systems,etc.
The Incorrectinputselector has been pressed.
The protectioncircuitryhas functionedbecause
the positiveand negative speakerconnection
wires are "shorted". Speakersystemswithan
impedanceless than the indicatedrated
impedanceof thisunitare used or under severe
use,suchas loudvolume,excessivepowerand In
an excessivelyhot environment.
When the Dolby Pro Logic systemis ON, bothA
and B speakersare turnd ON.
When both A and Bspeakers are being used
simultaneously,the DolbyPro Logicsystem Is
turned ON.
• Confirmthat the powercord plug isconnected
completely.
• Pressthe HELPbutton. (Thedisplay will scroll
throughthe causesof the problem.)Use thisdisplay
as a guideto remedythe problem.
• Check to be surethat all connectionwires are
correctlyconnected.
• Checkto be sure thatthe correct selector Is
pressed.
• Switchoff the power,and after determiningand
correctingthe cause,switchON the poweronce
again.
• Use a speakersystem of the properImpedance
rating.
• Press the HELP button.
(The display will scroll through the causes of the pro-
blem.)
Use this display as a guide to remedy the problem.
23
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