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If you are having problems with your unit, check this list for a possible solution before calling for service.
If you cannot solve the problem from the hints given here, or the unit has been physically damaged, call a qualified person,
such as your dealer, for service.
Troubleshooting
Symptom
No sound is heard.
Hard to listen to broadcasts because of
noise.
The disc sound is discontinuous.
The disc tray does not open or close.
The disc does not play.
The cassette holders cannot be opened.
Impossible to record.
Stereo effect is lost.
Operations are disabled.
Unable to operate the unit from the
remote control.
Cause
Connections are incorrect or loose.
• Antennas are disconnected.
• The AM loop antenna is too close to
the unit.
• The FM antenna is not properly
extended and positioned.
The disc is scratched or dirty.
• The AC power cord is not plugged in.
• Trays are locked.
The disc is placed upside down.
Power supply from the AC power cord
has been cut off while the tape was
running.
Small tabs on the back of the cassette
are removed.
Vocal masking is activated.
The built-in microprocessor may be
malfunctioning due to external
electrical interference.
• The path between the remote control
and the remote sensor on the unit is
blocked.
• The batteries are exhausted.
Action
Check all connections and make
corrections. (See pages 6 to 8.)
• Reconnect the antennas correctly and
securely.
• Change the position and direction of
the AM loop antenna.
• Extend the FM antenna in the best
position.
Clean or replace the disc. (See page
29.)
• Plug in the AC power cord.
• Unlock the trays. (See page 15.)
Place the disc with the label side up.
Turn on the unit.
Cover the holes with adhesive tape.
Cancel the vocal masking (see page
24).
Unplug the AC power cord and then
plug it back in.
• Remove the obstruction.
• Replace the batteries.
EN21-26.MX-J770[U]/3 16/06/2000, 9:37 AM30