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ONKYO 6850 The laser does not read disks... The Head twitches and clicks as though magnets do not stick are audible...

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  • adamsht Jul 04, 2008

    ONKYO 6850 cdp R1



    The laser does not read disks... The Head clicks at movement as if it is not drawn by a magnet...

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Do you already clean the laser lens because maybe thats all the problem.

Posted on Jul 04, 2008

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In most cases when the CD does not play it is possible that the optical head is a suspect. Sometimes it might pick up ordinary audio CD but will not play other formats. This indicates that the optical head is weak and so there is no detection or scanning of the CD. If the optical is working the tracks will be read immediately but with no scanning the laser head can be defective.
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Hi a dvd stack in player and i cant play it. the "dest error" show on display


In most cases when the CD does not play it is possible that the optical head is a suspect. Sometimes it might pick up ordinary audio CD but will not play other formats. This indicates that the optical head is weak and so there is no detection or scanning of the CD . If the optical is working the tracks will be read immediately but with no scanning the laser head can be defective.

The main motor will not work in some cases as unless the tracks are read the drive motor will not work with signal from the processor.
Sometimes certain cleaner disks will not be tracked to run for cleaning as it will not be read and so will reject. Hence it is ideal to manually clean the laser head eye using a cleaning swap /cotton bud with gentle pressure on the lens eye.
If there is no result then watch if the CD spins or tries to spin. If so the board seems to work unless a test is taken on the main board but the possibility of a defective optical head can be the suspected fault.
If any of the above seems otherwise we must recheck with possibilities of a malfunction of the main processor board

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I'm able to load the DVD/CD, the display say "reading", the play sign appear but nothing happend, neither sound nor imige come out. I've had the equipment since 2004 and I never this problem...


In most cases when the CD does not play it is possible that the optical head is a suspect. Sometimes it might pick up ordinary audio CD but will not play other formats. This indicates that the optical head is weak and so there is no detection or scanning of the CD . If the optical is working the tracks will be read immediately but with no scanning the laser head can be defective.
Sometimes certain cleaner disks will not be tracked to run for cleaning as it will not be read and so will reject. Hence it is ideal to manually clean the laser head eye using a cleaning swap /cotton bud with gentle pressure on the lens eye.
If there is no result then watch if the CD spins or tries to spin. If so the board seems to work unless a test is taken on the main board but the possibility of a defective optical head can be the suspected fault.
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