TROUBLESHOOTING

Problem

Cause

Remedy

See

page

 

 

 

This unit does not

The internal microcomputer has been

Disconnect the power cable from the AC wall outlet

—

operate properly.

frozen by an external electric shock (such

and then plug it in again after about 30 seconds.

 

 

as lightning or excessive static electricity)

 

 

 

or by a power supply with low voltage.

 

 

 

 

 

 

“CHECK SP WIRES” appears in the front panel display.

Speaker cables are short-circuited.

Make sure all speaker cables are connected correctly.

16

There is noise

This unit is too close to the digital or high-

Move this unit further away from such equipment.

—

interference from

frequency equipment.

 

 

digital or radio

 

 

 

frequency equipment.

 

 

 

 

 

 

 

The picture is

The video source uses scrambled or

 

 

disturbed.

encoded signals to prevent dubbing.

 

 

 

 

 

 

This unit suddenly

The internal temperature becomes too

Wait about 1 hour for this unit to cool down and then

—

enters the standby

high and the overheat protection circuitry

turn it back on.

 

mode.

has been activated.

 

 

 

 

 

 

■Tuner

 

Problem

Cause

Remedy

See

 

page

 

 

 

 

 

FM stereo reception is

The characteristics of FM stereo

Check the antenna connections.

31

 

noisy.

broadcasts may cause this problem

 

 

 

Try using a high-quality directional FM

—

 

 

when the transmitter is too far away or

 

 

the antenna input is poor.

antenna.

 

 

 

 

Use the manual tuning method.

58

 

 

 

 

 

 

There is distortion, and

There is multi-path interference.

Adjust the antenna position to eliminate

—

 

clear reception cannot

 

multi-path interference.

 

FM

be obtained even with a

 

 

 

good FM antenna.

 

 

 

 

 

 

 

 

 

 

 

 

 

The desired station

The signal is too weak.

Use a high-quality directional FM antenna.

—

 

cannot be tuned into

 

 

 

 

 

Use the manual tuning method.

58

 

with the automatic

 

 

tuning method.

 

 

 

 

 

 

 

 

 

Previously preset

This unit has been disconnected for a

Preset the stations again.

59, 60

 

stations can no longer

long period.

 

 

 

be tuned into.

 

 

 

 

 

 

 

 

 

The desired station

The signal is weak or the antenna

Tighten the AM loop antenna connections

—

 

cannot be tuned into

connections are loose.

and orient it for the best reception.

 

 

with the automatic

 

 

 

 

 

Use the manual tuning method.

58

 

tuning method.

 

AM

 

 

 

 

There are continuous

Noises can result from lightning,

Use an outdoor antenna and a ground wire.

—

 

crackling and hissing

fluorescent lamps, motors, thermostats

This will help somewhat, but it is difficult to

 

 

noises.

and other electrical equipment.

eliminate all noise.

 

 

 

 

 

 

 

There are buzzing and

A TV set is being used nearby.

Move this unit away from the TV set.

—

 

whining noises.

 

 

 

 

 

 

 

 

142 En