Aiwa CX-NA31 manual Care and Maintenance, Troubleshooting Guide

CARE AND MAINTENANCE

Occasional care and maintenance of the unit and the software are nseded 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 dama,ge the finish of the unit.

TCIclean the heads and tape paths

After every 10 hours of use, clean the heads and tape paths with a head cleaning cassette or cotton swab moistened with cleaning fluid or denatured alcohol. (These cleaning kits are commercially available.)

When cleaning with a cotton swab, wipe the recording/playback

%head, erasure head (deck 2 only), capstans, and pinchrollers.

#——%

After cleaning the heads and tape paths with a liquid head cleaning cassette or a moistened swab, wait until the cleaned parts are completely dry before inserting the tapes.

To demagnetize the heads

The Iheads may become magnetized after long-term use. This may narrow the output range of recorded tapes and increase noise. After 20 to 30 hours use, demagnetize the heads with any commercially available demagnetizer,

Care of discs

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

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

Care of tapes ,

*Stc]re tapes in their’ cases after use.

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

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

TROUBLESHOOTING GUIDE

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 3) ‘

●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 17)

An erroneous display or a malfunction occurs.

+Reset the unit as stated below,

TUNER SECTION

There is constant, wave-like static.

c Is the antenna connected properly? (+ page 4)

●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 10)

The sound is off-balance or not adequately high.

●Is the playback head dirty? (+ page 22)

Recording is not possible.

●Is the erasure prevention tab on the tape broken off? (+ page 1o)

●[s the recording head dirty? (+ page 22)

Erasure is not possible.

●Is the erasure head dirty? (+ page 22)

●Is a metal tape being used?

High frequency sound is not emitted.

●Is the recording/playback head dirty? (+ page 22)

CD PLAYER SECTION

The CD player does not play.

●Is the disc correctly inserted? (+ page 11)

●Is the disc dirty? (+ page 22)

●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 the POWER button to turn off the power.

2Press the POWER button to turn the power back on while pressing the ■ CLEAR button. 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 repeat step 2.

ENGLfSH 22