For your information, 27 troubleshooting guide, Precautions – Sony MHC-771 User Manual

Page 28

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For Your Information

27

Troubleshooting
Guide

If you run into any problem using this
stereo system, use the following check list.
And first check the following points:
•The power cord is connected firmly.
•The speakers are connected correctly and

firmly.

Should any problem persist after you have
made the checks below, consult your
nearest Sony dealer.

Tuner

“TUNED” flashes in the display.

➔ Adjust the antenna.

“STEREO” flashes in the display.

➔ Adjust the antenna.

Severe hum or noise.

➔ Adjust the antenna.
➔ The signal strength is too weak.

Connect the external antenna.

➔ Connect the ground wire.

A stereo FM program cannot be
received in stereo.

➔ Press STEREO so that “STEREO”

appears.

Tape Player

The tape does not record.

➔ No tape in the cassette holder.
➔ The tab has been removed from the

cassette.

➔ The tape has reeled to the end.

The tape does not record nor
playback or there is a decrease in
sound level.

➔ The heads are dirty. Clean them.*
➔ Magnetic deposits have built-up on

the record/playback heads.*

There is excessive wow or flutter, or
the sound drops out.

➔ The capstans or pinch rollers are

contaminated.*

The tape does not erase completely.

➔ Magnetic deposits have built-up on

the record/playback heads.*

Noise increases or the high
frequencies are erased.

➔ Magnetic deposits have built-up on

the record/playback heads.*

* See “Maintenance.”

On safety
• The unit is not disconnected from the AC

power source (mains) as long as it is
connected to the wall outlet, even if the
unit itself has been turned off.

• Unplug the system from the AC power

outlet if it is not to be used for an
extended period of time. To disconnect
the AC power cord, pull it out by the
plug. Never pull the cord itself.

• Should any solid object or liquid fall into

the component, unplug the stereo system
and have the component checked by
qualified personnel before operating it
any further.

• AC power cord must be changed only at

the qualified service shop.

On installation
Place the stereo system in a location with
adequate ventilation to prevent heat build-
up in the stereo system.
Do not place the unit in an inclined
position.
Do not place the unit in locations where
it is:
- Extremely hot or cold
- Dusty or dirty
- Very humid
- Vibrating
- Subject to direct sunlight

On condensation in the CD player
component
If the system is brought directly from a cold
to a warm location, or is placed in a very
damp room, moisture may condense on the
lens inside the CD player. Should this
occur, the CD player will not operate.
Remove the CD and leave the system
turned on for about an hour until the
moisture evaporates.

To save a tape permanently
To prevent a tape from being accidentally
recorded over, break off the cassette tab
from side A or B as illustrated. If you later
want to reuse the tape for recording, cover
the broken tab with adhesive tape.

When you are using a TYPE II (CrO

2

) or

TYPE IV (metal) cassette, be careful not to
cover the detector slots which allow the
tape player to automatically detect the type
of tape.

For Your
Information

Precautions

Troubleshooting Guide

Maintenance

Specifications

Index to Parts and

Controls

Index

continue to next page

Precautions

If you have any questions or problems
concerning your stereo system, please
consult your nearest Sony dealer.

Side A

Tab of side A

Tab of
side B

Detector slots

TYPE II

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