Aiwa CX-NHMT75 manual Care and Maintenance, General, Tuner Section, Cassette Deck Section

GENERAL
CARE AND MAINTENANCE	TROUBLESHOOTING GUIDE

Occasional care and maintenance of the unit and the software are needed to optimize the performance of your unit.

To clean the cabinet

Use a soft and dry cloth.

If the surfaces are extremely dirty, use a soft cloth lightly moistened with mild detergent solution. Do not use strong solvents, such as alcohol, benzine or thinner as these could damage the finish of the unit.

To clean the tape heads

When the tape heads are dirty;

-high frequency sound is not emitted

-the sound is not adequately high

-the sound is off-balance

-the tape cannot be erased

-the tape cannot be recorded on

After every 10 hours of use, clean the tape heads with a head cleaning cassette.

Refer to the instructions of the cleaning cassette for details.

To demagnetize the tape heads

The tape heads may become magnetized after long-term use. This may narrow the output range of recorded tapes and increase noise.

After every 20 to 30 hours of use, demagnetize the tape heads with a separately sold demagnetizing cassette.

Refer to the instructions of the demagnetizing cassette for details.

Care of discs

•When a disc becomes dirty, wipe the disc from the center out with a cleaning cloth.

•After playing a disc, store the disc in its case. Do not leave the disc in places that are hot or humid.

Care of tapes

•Store tapes in their cases after use.

•Do not leave tapes near magnets, motors, television sets, or any source of magnetism. This will downgrade the sound quality and cause noise.

•Do not expose tapes to direct sunlight, or leave them in a car parked in direct sunlight.

If the unit fails to perform as described in these Operating Instructions, check the following guide.

GENERAL

There is no sound.

•Is the AC cord connected properly?

•Is there a bad connection? (➞ page 4)

•There may be a short circuit in the speaker terminals.

➞Disconnect the AC cord, then correct the speaker connections.

•Was an incorrect function button pressed?

Sound is emitted from one speaker only.

•Is the other speaker disconnected?

The output sound is not stereo.

•Is the Karaoke function turned on? (➞ page 23)

An erroneous display or a malfunction occurs.

➞Reset the unit as stated below.

The unit blacks out when the power is turned off.

•Is the power economizing mode set to “ECO ON” or “ECO AUTO”? (➞ page 7)

The power is not turned on.

➞Disconnect the AC cord, and connect it again in a few seconds.

TUNER SECTION

There is constant, wave-like static.

•Is the antenna connected properly? (➞ page 6)

•Is the signal weak?

➞Connect an outdoor antenna.

The reception contains noise interferences or the sound is distorted.

•Is the system picking up external noise or multipath distortion?

➞Change the orientation of the antenna.

➞Move the unit away from other electrical appliances.

CASSETTE DECK SECTION

The tape does not run.

•Is deck 2 in pause mode? (➞ page 13)

The sound is off-balance or not adequately high.

•Is the playback head dirty? (➞ above)

Recording is not possible.

•Is the erasure prevention tab on the tape broken off? (➞ page 14)

•Is the recording head dirty? (➞ above)

Erasure is not possible.

•Is the erasure head dirty? (➞ above)

•Is a metal tape being used?

High frequency sound is not emitted.

•Is the recording/playback head dirty? (➞ above)

CD PLAYER SECTION

The CD player does not play.

•Is the disc correctly placed? (➞ page 15)

•Is the disc dirty? (➞ above)

•Is the lens affected by condensation?

➞ Wait approximately one hour and try again.

To reset

If an unusual condition occurs in the display window or the cassette decks, reset the unit as follows.

1Press POWER to turn off the power.

2Press POWER to turn the power back on while pressing s CLEAR. Everything stored in memory after purchase is canceled.

If the power cannot be turned off in step 1 because of a malfunction, reset by disconnecting the AC cord, and connect it again. Then carry out step 2.

30 ENGLISH