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46
Troubleshooting
If you run into any problem using this stereo
system, use the following check list.
First, check that the power cord is connected
firmly and the speakers are connected
correctly and firmly.
Should any problem persist, consult your
nearest Sony dealer.
General
The display starts flashing as soon as you
plug in the power cord even though you
haven’t turned on the power
(demonstration mode).
•Press DISPLAY (MHC-RXD9/RXD80/
RXD7/R770) or DEMO (STANDBY)
(MHC-GRX9900/GRX70/GRX70J/
GRX50) when the power is turned off.
The demonstration disappears.
The demonstration mode appears
automatically the first time you plug in
the power cord or if there is a power
outage lasting longer than half a day.
The clock setting/radio presetting/timer is
canceled.
•The power cord is disconnected or a
power failure occurs longer than half a
day.
Redo the followings:
— “Step 2: Setting the time”
— “Step 3: Presetting radio stations”
If you have set the timer, also redo
“Waking up to music” and “Timer-
recording radio programs”.
There is no sound.
•Rotate VOLUME clockwise.
•The headphones are connected.
•Insert only the stripped portion of the
speaker cord into the SPEAKER jack.
Inserting the vinyl portion of the speaker
cord will obstruct the speaker
connections.
•There is no audio output during timer
recording.
Before placing a cassette in the
tape deck
Take up any slack in the tape. Otherwise the tape
may get entangled in the parts of the tape deck and
become damaged.
When using a tape longer than 90
minutes
The tape is very elastic. Do not change the tape
operations such as play, stop, and fast-winding etc.
frequently. The tape may get entangled in the tape
deck.
Cleaning the tape heads
Clean the tape heads after every 10 hours of use.
When the tape heads become dirty;
— the sound is distorted
— there is a decrease in sound level
— the sound drops out
— the tape does not erase completely
— the tape does not record.
Make sure to clean the tape heads before you start
an important recording or after playing an old tape.
Use separately sold dry-type or wet-type cleaning
cassette. For details, refer to the instructions of the
cleaning cassette.
Demagnetizing the tape heads
Demagnetize the tape heads and the metal parts that
have contact with the tape every 20 to 30 hours of
use with a separately sold demagnetizing cassette.
For details, refer to the instructions of the
demagnetizing cassette.
Precautions (continued)
Summary of Contents for MHC-GRX50
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