TROUBLESHOOTING

Problem

Cause

Remedy

 

 

 

The sound field parameters and

“16 MEMORY GUARD” on the SET MENU is set to

Select “OFF” (see page __).

some other settings on this unit

“ON”.

 

cannot be changed.

 

 

 

 

 

This unit does not operate

The internal microcomputer has been frozen by an

Disconnect the AC power cord from the outlet and

properly.

external electric shock (such as lightning or excessive

then plug it in again after about 30 seconds.

 

static electricity) or by a power supply with low

 

 

voltage.

 

 

 

 

“CHECK SP WIRES” appears on

Speaker cables are short circuited.

Make sure all speaker cables are connected correctly.

the front panel display.

 

 

 

 

 

The sound is degraded when

This unit is in the standby mode.

Turn on the power of this unit.

listening with headphones

 

 

connected to a tape deck or CD

 

 

player that is connected to this

 

 

unit.

 

 

 

 

 

There is noise interference from

This unit is too close to the digital or high-frequency

Move this unit further away from such equipment.

digital or high-frequency equip-

equipment.

 

ment, or this unit.

 

 

 

 

 

This unit suddenly turns into the

The internal temperature becomes too high and the

Wait until this unit cools down and then turn it back

standby mode.

overheat protection circuitry has been activated.

on.

 

 

 

■Tuner

 

Program

Cause

Remedy

 

 

 

 

 

FM stereo reception is

The characteristics of FM stereo broadcasts may cause

Check the antenna connections.

 

noisy.

this problem when the transmitter is too far away or

Try using a high-quality directional FM antenna.

 

 

the antenna input is poor.

Use the manual tuning method.

 

 

 

 

 

There is distortion, and

There is multipath interference.

Adjust the antenna position to eliminate multipath

 

clear reception cannot be

 

interference.

 

obtained even with a good

 

 

FM

FM antenna.

 

 

 

 

 

 

 

The desired station cannot

The station is too weak.

Use the manual tuning method.

 

be tuned in with the

 

Use a high-quality directional FM antenna.

 

automatic tuning method.

 

 

 

 

 

 

 

Previously preset stations

This unit has been disconnected for a long period.

Re-store the stations.

 

can no longer be tuned in.

 

 

 

 

 

 

 

The desired station cannot

The signal is weak or the antenna connections are

Tighten the AM loop antenna connections and orient it

 

be tuned in with the

loose.

for best reception.

 

automatic tuning method.

 

Use the manual tuning method.

 

 

 

 

 

There are continuous

Noises result from lightning, fluorescent lamps,

Use an outdoor antenna and a ground wire. This will

AM

crackling and hissing

motors, thermostats and other electrical equipment.

help somewhat, but it is difficult to eliminate all noise.

 

noises.

 

 

 

 

 

 

 

There are buzzing and

A TV set is being used nearby.

Move this unit away from the TV.

 

whining noises (especially

 

 

 

in the evening).

 

 

 

 

 

 

E-114