Question about Panasonic SC-DK20 System

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Fault The CD changer does not work after changing lens. Lens change became neccessary when CDs will not play

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Ok man first thing I need to know did you decide the Pickup assy was bad or did a repair shop?? I fyou did or the repair shop how did they come to that conclusion??? if a pickup is truly bad you cant just repalce it and expect it to work No my friend Im not saying your stupid or any of the sort just uninformed maybe.. If a pickup assy is replaced you must first off have the service manual to see where the rf terminal is to connect your scope to look at the rf pattern. Now you also must have the serviuce manual to perform the focus and tracking Offset adjustment as well as the focus and tracking gain alighnment. First thing you wanna do is adj the offset adjustment as this will set the focus and tracking coils in a center alighnment for the gain Now this is a very important adjustment my friend as if the offsets off on focus it wont play certan disc and if the tracking is off alighnment it will skip all over all of a suddenly for no reason. Now you must have a scope to see what bthe rf pattern looks like to do any sort of alighnment or to see what bthe state of the laser is in. as sometimes even new laser assys. need whats called a grating adjustment and you really need the right tools as well as the right equipment to do these adjustments with . A laser pickup dosent go out as often as most servicers says it does as there was a servey done with the Mishuta corp( panasonic) and 85% of returned pickups were not defective and should not have been replaced. Now im not sure on how much experience you have with this stuff but if your a hobby type repairer thats great but please you may be over your head so see if someone with the proper eqipment as well as the proper tools can assist you in this repair. And I do think its a good thing that you are trying My friend But without the right service manuals as well as the proper tools your spend a bundle and get Now where??!! GOOD LUCK

Posted on May 21, 2006

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Posted on Jan 02, 2017

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2 Answers

I have a Phillips MC/50. The CD changer keeps changing and won't play, just keeps flipping. If you use the tuner, you still hear the clicks of the CD changer. You have to unplug it.


There is a switch inside the changer that will not release. Most likely the plastic stop it rides on has broken off . This is common when the changer keeps shuffling the disc all the time

Dec 18, 2010 | Philips MC-70 CD Shelf System

1 Answer

CDs change without playing. Installed new motor and starts to spin and stops, and cycles through the cartridge.


Check to see if the laser lens is still on the laser!
If not see if its in unit and glue back on with radio/tv cement(don't super glue)! If don't work replace the laser.

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Yamaha CDC-765: sometimes skips when playing CDs


The problem is in the laser for sure. Try cleaning with a cd cleaning tool. It's the easiest solution because changing the laser is not always available solution.

Stelios.

Feb 21, 2010 | Yamaha CDC-765 5-Disc CD Changer

1 Answer

Cd player loads cds but wont play them then spits them out or if they do play but not correctly


Hi. The problem is usually a lens fault.

Try first using a cleaner cd to clean the lens. If that does not work, the unit must be taken apart, and the lens cleaned using solution and soft cotton stubs.Lens cleaning may affect warranty status. Call manufacturer to get more info.

Here a general article on the topic, procedures to clean the lens are the same for CD and DVDs:My player does not read disks

Regards.

Jan 16, 2010 | Blaupunkt Car Audio & Video

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When Making A CD To Play On My technics SL-PD8 It


If thhis happens quite often , and does not depend on the media, then it is usually a dirty lens problem. The lens is dirty or scratched and sometimes cannot read CD TOC (table of content).

If this happens only on reocrded CDs , try changing the media used. For example if you used +R, try with -R.

If this happens on all media, then try cleaning the lens with a lens cleaner CD or blowing some canned air on the lens.


See: CD and DVD Lens Cleaner...


May 02, 2009 | Technics SL-PD8 5-Disc CD Changer

1 Answer

My cd player isn't reading the discs, I've got power it will change cds every thing appears to be working until the cd is ready to play. What can I do?


if you have already used a laser lens cleaning cd and it will not read that either , then a manual cleaning of the lens will need to be done , its probably just can't see well right now

Dec 11, 2008 | Pioneer PD-F908 101-Disc CD Changer

1 Answer

Kenwood cd stopped pla computer made cds after i dropped it now will play for about 1min then stops


hi 1paullawrenc, try get your lens cleaned by using a lens cleaner hope this solve your problem.
raj..

May 11, 2008 | Kenwood CD-203 5-Disc CD Changer

1 Answer

Wont play cds


Sorry to say this but it's done.
get a new one ,you will get a lot more for your money these days.

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1 Answer

My Pd-f4o7 25 CD changer


Mechanical fault, monitor loading arm but most likely belts.

capital98

Dec 19, 2007 | Pioneer PD-F407 25-Disc CD Changer

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