Question about Pioneer CDJ-1000 CD Player

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CDJ Laser Alignment/Calibration

I have a couple of CDJ 1000's (Pioneer) and over time the laser has come out of alignment/focus/calibration (whichever you would like to refer to that as). I need to know if there is anyone out there who knows the procedure to realign/focus/calibrate the laser. Thanks in advance.

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They dont normally go out of focus, any trouble reading discs / freezing is usually caused by a worn out laser which will require replacement.

Posted on Sep 24, 2008

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Posted on Jan 02, 2017

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My laser plummet is loose how do I fix it


There are no less than 7 screws involved in maintaining the laser plummet alignment. Make sure the 2 on the side are snug, but not tight as it will damage the plummet and the single standard screw on top is secure as well.
The 4 hex set screws on the top of the plummet mount are for calibration. Set the instrument up on a tripod and turn the plummet on. mark the position of the laser on the floor, then turn the instrument 180 deg horizontally. if the laser is no longer in the same place i recommend getting it professionally calibrated. 6 of the 7 screws involved affect the calibration, and it is not a job for the light hearted. As well, if those screws backed out, then likely more (maybe unseen) are loose as well.
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Jun 25, 2011 | Pioneer CDJ-1000 CD Player

1 Answer

Dvd plays sometimes


If this unit had worked in the past and has started acting up without being droped, jarred, banged, or slammed around, then it may very well be as easy as dirty optics. Get a lens cleaner kit or a Q-tip with a little glass cleaner and clean off the lens of the optical transport.

If this does not work:

You will need to see what the optical transport is doing. The door needs to be opened and the switch that tells the player the door is closed needs to be tripped (usually with a paper-clip or small tool). Watch the optical transport to make sure it moves back and forth, up and down BUT DO NOT LOOK INTO THE LENS DIRECTLY as this can cause retinal damage. If it does all these things, then the motors are working properly and the issue is either in the optical alignment or the decoder chip.

If it's the optical alignment, you might be able to open the player and start changing the height of the drive placement so the laser focuses more accurately on the disc. This will require a disc with an opaque or printed side to stay in the drive while you calibrate. You can then safely look at the disc and see the red dot of the laser to determine the size of the dot. The smaller the size, the more in focus the laser is. This calibration must be done for the entire length of the oprical transport track. there are two screws that change this on either end and both muse be checked and calibrated. The optical transport has some focus adjustment capability (hence the up and down motion of the optics), but if the transport is beyond the limited capabilities of the auto focus, it needs to be brought back to correct.

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1 Answer

Freezing video


Different discs are read with different focus ranges. Production pressed DVDs are different in thickness that recordable DVDs and CDs are also different than the afore mentioned items. Your optical transport could be out of alignment, but check to see if CDs will play first. If CDs and Production DVDs will play, it is possible that you have a dirty lens or there is something interfering with the laser (i.e. dirt).

Here are a couple of solutions:

If this unit had worked in the past and has started acting up without being droped, jarred, banged, or slammed around, then it may very well be as easy as dirty optics. Get a lens cleaner kit or a Q-tip with a little glass cleaner and clean off the lens of the optical transport.

If this does not work:

You will need to see what the optical transport is doing. The door needs to be opened and the switch that tells the player the door is closed needs to be tripped (usually with a paper-clip or small tool). Watch the optical transport to make sure it moves back and forth, up and down BUT DO NOT LOOK INTO THE LENS DIRECTLY as this can cause retinal damage. If it does all these things, then the motors are working properly and the issue is either in the optical alignment or the decoder chip.

If it's the optical alignment, you might be able to open the player and start changing the height of the drive placement so the laser focuses more accurately on the disc. This will require a disc with an opaque or printed side to stay in the drive while you calibrate. You can then safely look at the disc and see the red dot of the laser to determine the size of the dot. The smaller the size, the more in focus the laser is. This calibration must be done for the entire length of the oprical transport track. there are two screws that change this on either end and both muse be checked and calibrated. The optical transport has some focus adjustment capability (hence the up and down motion of the optics), but if the transport is beyond the limited capabilities of the auto focus, it needs to be brought back to correct.

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Any error codes??? you must provide some more info... is the screen blank? When you are trying to insert a cd do you hear any noise from the mechanism?

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