Tools Required

J 39916-A CD and Cassette Diagnostic Audio Kit

If you do not regularly clean the cassette player, the following conditions may occur:

Cassette tapes may not operate correctly if not stored in cases away from the following conditions:

After every 15 hours of operation, clean the cassette player for optimum performance.

Clean the cassette player at least every 50 hours of playing time. This will prevent damage to the cassette player mechanism. The radio may display CLN, CLEAN, or CLEAN TAPE, depending on the type of radio. This will occur only if the radio is equipped with the clean tape indicator feature. This indicates that you have used the cassette player for 50 hours without resetting the tape clean timer. If this message appears on the display, clean the cassette player. The cassette player will play tapes, but clean the cassette player as soon as possible. This will prevent damage to the tapes or to the cassette player.

Cassettes may wear, and the sound quality may degrade over time. If you notice a reduction in sound quality, play a different cassette. A new cassette may indicate whether the tape or the cassette player has caused the condition.

If the sound quality does not improve when you play the second tape, clean the cassette player. Even if the last cleaning was recent, clean the cassette player.

If a noticeable improvement is not achieved after cleaning the cassette player, remove the radio for repair.

The following 2 components are cleaned on a cassette player:

Important: Do not contact the tape head with magnetized tools. If the head becomes magnetized, every cassette that is played in the cassette player will be degraded.

Use the cleaning cassette in J 39916-A in order to correctly clean the head and the capstan. The cleaning cassette has non-abrasive pads that clean the tape head, using a scrubbing action. The cassette cleans the tape head as the hubs of the cleaner cassette turn. During a cleaning, the cassette may eject. The unit has the cut tape detection feature. The feature may mistake the cleaning cassette for a broken tape.

In order to prevent the cleaning cassette from ejecting, perform the following steps:

1. Turn the ignition switch to one of the following positions, depending on the vehicle:

•

ON

•

RUN

•

ACC

•

ACCESSORY

2. Turn OFF the radio.
3. Press and hold the TAPE button for 3 seconds. The radio display will flash CAS 5 times.
4. Insert the scrubbing action cleaning cassette.
5. After the manufacturer's recommended cleaning time, eject the cleaning cassette. When the cleaning cassette ejects, the cut tape detection feature is active again.

The alternative method uses a wet-type cleaning cassette that cleans the tape head using a non-scrubbing action. This cassette uses a fabric belt in order to clean the tape head. This type of cleaning cassette does not eject automatically. A cleaning cassette with a non-scrubbing action may clean less thoroughly than a cleaning cassette with a scrubbing action. The use of this cassette is not recommended.

After the cleaning, press and hold the button that has an up arrow and a line at the bottom for 3 seconds. This resets the clean indicator. The radio display will show -- -- --, which will flash 5 times. The indicator has now been reset.