Sony MHC-DX9, MHC-BX9 Troubleshooting, General, Precautions continued, Cleaning the tape heads

Precautions (continued)

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.

Troubleshooting

If you run into any problem using this unit, 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 when the power is turned off.

The demonstration mode appears automatically the first time you plug in the power cord or if there is a power outage.

The clock setting is canceled.

•The power cord is disconnected or a power failure occurs. Redo “Step 2: Setting the time” (on page 7). If you have set the timer, redo “Waking up to music” (on page 35) and “Timer-recording radio programs” (on page 37).

The radio presetting/timer setting is canceled.

•The power cord is disconnected or a power failure occurs for longer than half a day. Redo “Step 3: Presetting radio stations” (on page 8).

There is no sound.

•Turn 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.

•The protective device on the amplifier has been activated because of short circuit. (“PROTECT” and “PUSH POWER” flash alternately.) Turn off the unit, eliminate the short-circuit problem and turn on the power again.

•There is no audio output during timer recording.

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