Question about Marantz CD-4000 CD Player
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Posted on Jan 02, 2017
SOURCE: Marantz CD-5000 CD player
see if the player tries to read the disc. Load a disc and listen.
Does the player make squealing noises or is it totally quiet? Squealing noises may indicate that the player is trying to synchronize with the disc but can't due to an obstruction on the lens or in the laser path inside the pickup or a defect in the pickup. This can also be caused by an intermittent signal problem due to a faulty ribbon cable.
Totally silent means that the photo sensor is not getting any usable input from the laser at all, meaning that the pickup is "blind" for lack of a better word.
This can be caused by an obstruction of the beam by foreign matter on the lens or inside the pickup all the way to a marginal or failed laser diode and/or photosensor array. This can also be caused by a bad ribbon cable with one or more severed traces.
You could try to clean the optics. This is the most common malfunction as far as i know in all disc players. It would involve taking the cover off and finding a way to expose the lense, and then cleaning it with a very gentle brush. some players have a cover for the lense that swings to the side during playing, this greatly reduces the chance of dust accumulating, but its still worth the try.
If you actually see dust on the lense, then its just that simple. clean, close, play.
If still ur problem is not solved then i am sad to say you have to get it repaired and thats the only solution..
Posted on Feb 22, 2008
these models use the 12.1 philips laser mechanism and it is a very common problem for failing to read discs.
various technics / marantz / philips / cyrus cd players etc also use it and are plagued with the same fault.
it's a 90% chance the laser is dead!
philips realised the unreliability of this laser and uprated it to the identical looking VAM-12.
do not dismiss the spindle motor as these also fail quite alot on this mechanism.
hope this helps.
Posted on Sep 12, 2010
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