The CD Changer Skips

AUDIO
AU94-001
JANUARY 21, 1994
SC 400 / 300

Title:
SC 300/400 CD CHANGER SKIPS

MODELS:
SC 400/300

'92-'93 SC 400/300 CD changer's optical mechanism has been modified to improve the following conditions:

1. CD skips

2. CD won't, play and displays "Err"

DIAGNOSTIC PROCEDURE:

Use a known good CD disk for diagnosis.

1) CD skips / won't play are frequently caused by the condition of the CD disks, or other external factors. Verify that CD skips / won't play are not caused by any of the following:

- CD is inserted with the wrong side up.

- Damaged or dirty CD's (scratches, debris, oil, fingerprints on CD's).

- Rough road surfaces causing the CD to skip.

- Objects in the trunk bumping the CD changer (usually on left turns).





2) After verifying that the CD disks are in good condition, exchange the CD changer. Countermeasured units will have an orange mark inside the CD changer and next to the serial number on the ID label.

Important:
When exchanging a SC 400/300 Panasonic CD changer, send the CD magazine with the CD changer (only the exchange CD changer for SC 400 /300 will be sent with the CD magazine). Exchange units have been countermeasured starting 9/93.

PRODUCTION CHANGE DESCRIPTION:

Green Mark 12/91

Optical Lens was changed to reduce deformation with temperature and spring tension of the loading guide pins was increased to reduce contact with the CD Disc.

Blue Mark 9/92

The coating of the CD magazine clips and the insert / eject roller shape were changed and a brush was added to reduce the occurrence of small clear pieces of protective coating contaminating the playing surface of the CD.

Orange Mark 9/93

Adhesive was applied to the laser diode to insure alignment with the optical pick-up.

CD CLEANING PROCEDURE:





1) Clean the CD playing surface (shiny side) by wiping the CD radially (from the center to the outer edge) with a soft clean cloth. Do not wipe in a circular motion. Make sure that all contaminates have been removed from the playing surface.





2) If there are shavings on the edge of the CD, rub the edge of the CD with the side of a pencil until the shavings are removed.

Please return exchanged unit immediately to Panasonic with the CD magazine.





PRODUCTION EFFECTIVE