CD Player Malfunctions - Skips on Rough Road Surface
Group 65Sound Systems,
Cruise, Alarms, Monitors
Bulletin Number
65 18 96
Woodcliff Lake, NJ
March 1998
Product Engineering
This Service Information bulletin supersedes S.I. 65 18 96 dated November 1996 which should be removed and discarded from your S.I. binder.
Changes to this revision are identified by a black bar and asterisks.
SUBJECT:
CD Changer Malfunctions-CD Skips When Road Surface is Rough
MODEL:
All Models with CD changer
Situation:
Because of design characteristics, the CD changer can be sensitive to vibrations which occur during driving over rough road surfaces. To avoid skipping during CD play, the damping mechanism containing springs and sensitive dampers is incorporated in the unit.
Those springs must be adjusted properly to make sure that the operation of the internal suspension unit is optimized for the different mounting positions of the CD changer.
Further, it is very important to use the 3 transportation screws whenever the CD changer is removed from the car and stored for an extended period of time, to prevent collapse and deterioration of the internal dampers. Be sure to use all 3 screws, otherwise the internal mechanism can be damaged beyond recovery.
Correction:
When installing a CD changer, or in the event of a customer complaint of a skipping CD, be sure that the suspension spring adjustment is in the correct position.
The suspension spring position for the different mounting positions is as shown.
Requires the spring settings as shown.
Requires the spring settings as shown.
Requires the spring settings as shown.
For the Alpine CD changer, the setting has to be secured by using patches, otherwise the adjustment can change by itself.
*Information:
Important notes for CD changers in mobile application:
^ The CD changer is only capable of accepting and correctly positioning standard 12 cm CDs. It is essential to use CDs that are not too thick and are deburred in the center and on the outer edge. Otherwise, the transport rollers are unable to reliably pick up and transport the CD.
^ Transparent CDs and CDs with asymmetrical dimensions cannot be optically recognized and positioned reliably by the photoelectric light beams.
^ In the event of a customer complaint, the cause of the fault should be precisely diagnosed before the CD changer is exchanged.
^ As the fault may be caused by a defective CD magazine or by defective CDs, an attempt should be made to rectify the complaint by using a new CD magazine or other CDs.
^ If a CD magazine is jammed and all trays are retracted, the magazine can be extracted by:
- using the Magazine Eject Card in older ALPINE units (model TR1001 or TR1003)-see Service Bulletin 65 O2 96 from April of '96
- using a thin, long blade (feeler gauge, metal ruler, etc) in PIONEER or newer ALPINE (model 404 or 584) units. To disengage the locking tab, the blade should be inserted between magazine and the magazine compartment as shown on the illustrations.
Releasing jammed magazine: ALPINE (locking tab at the bottom of the magazine)
Releasing jammed magazine: PIONEER
(locking tab at the side of the magazine)
*The defective CD changer should be returned in the original packaging from the replacement unit together with CD magazine. Also, when the unit is being shipped, the damper components must be firmly secured by means of the transport retaining screws and retaining pin (although do not use the pin in case of jammed magazine or stacked CD). Failure to comply with this could cause transport damage.*
Important:
CD changers without a CD magazine and without transport securing devices will, with immediate effect, be returned by the Warranty Parts Return Center and the warranty claim will be rejected.
Warranty Information: For information only.