Aiwa NSX-A508 - Manual (Page 22)

GENERAL
MAINTENANCE TROUBLESHOOTING GUIDË
I-
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 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 playback/recording
head (deck 2 only), 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 heads 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.
• 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.
21 ENGLISH
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, wait for at least 5 seconds, and
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 16)
An erroneous display or a malfunction occurs.
-► Reset the unit as stated below.
TUNER SECTION
There is constant, wave-like static.
• 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 11 )
The sound is off-balance or not adequately high.
• Is the playback head dirty? (-► page 21)
Recording is not possible.
• Is the erasure prevention tab on the tape broken off? (-» page
12)
• Is the recording head dirty? (-> page 21)
Erasure is not possible.
• Is the erasure head dirty? (-> page 21)
• Is a metal tape being used?
High frequency sound is not emitted.
• Is the recording/playback head dirty? (-► page 21)
CD PLAYER SECTION
The CD player does not play.
• Is the disc correctly placed? (-► page 9)
• Is the disc dirty? (-► page 21)
• 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.
1 Press POWER to turn off the power.
2 Press POWER to turn the power back on while pressing ■
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.