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Thread: Neo Geo CDZ disc problem

  1. #1
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    Neo Geo CDZ disc problem

    Hi all!

    I have a Neo Geo CDZ and it powers on, I get video and the animated intro. The disk spins for a couple of seconds and then stops. Laser moves, but with a non spinning disc I can not know if it can read or not.

    Any advice about what to try?

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    Quote Originally Posted by Demiurgo View Post
    Hi all!

    I have a Neo Geo CDZ and it powers on, I get video and the animated intro. The disk spins for a couple of seconds and then stops. Laser moves, but with a non spinning disc I can not know if it can read or not.

    Any advice about what to try?
    You could try adjusting the laser voltage pot, but chances are it probably needs a new laser.
    My YouTube channel contains some MVS repairs and stuff:-
    http://www.youtube.com/user/GadgetUK164

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    Do you know where to acquire a replacement laser?

  4. #4
    Blame madman
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    Quote Originally Posted by Demiurgo View Post
    Do you know where to acquire a replacement laser?
    EBay sellers have them.

    [wyo] 9:37 pm: i am fully aware FL sucks. it's a shitty low budget california

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    Quote Originally Posted by GadgetUK View Post
    You could try adjusting the laser voltage pot, but chances are it probably needs a new laser.
    A laser failure can be related to the stopping of disc rotation?

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    Quote Originally Posted by Demiurgo View Post
    A laser failure can be related to the stopping of disc rotation?
    If the laser fails to read the disc, it will spin up for a moment and then stop again. You would likely still get the system intro but then a failure to load the game.
    [Rot] 1:39 pm: Twonk is a SAVIOR!


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    Quote Originally Posted by Tw3ek View Post
    If the laser fails to read the disc, it will spin up for a moment and then stop again. You would likely still get the system intro but then a failure to load the game.
    Yes, those are exactly the symptoms. Also, I checked the lens with a magnifying camera and is totally scratched, so I ordered a new one to replace it.

  8. #8
    Old Man
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    The CDZ will power on to the menu screen without the laser being operational. Usually, from power on and a disc pre-loaded, the game should boot automatically. If the system defaults to the console menu screen then there is a problem.

    Replacing the laser is fairly straight forward on the CDZ, just be very careful how you unplug the little cables that plug into the laser assy - it can be very easy to pull the wires out of their sockets. Make sure you unplug them by wiggling them gently free, do not tug on the wires to unplug the sockets!!
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  9. #9
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    I've also had this happen on one of my units. As everyone said, replacing the laser did the trick. Also not a bad idea to regrease the rails that the laser mech moves on while you're installing the new laser.

    超えるべき奴がいる。

    北斗神拳は無敵だ。

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    Quote Originally Posted by Tarma View Post
    Replacing the laser is fairly straight forward on the CDZ, just be very careful how you unplug the little cables that plug into the laser assy - it can be very easy to pull the wires out of their sockets. Make sure you unplug them by wiggling them gently free, do not tug on the wires to unplug the sockets!!
    Thanks a lot for the info and the advice! I will be careful with that.

  11. #11
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    Quote Originally Posted by BlackaneseNiNjA View Post
    I've also had this happen on one of my units. As everyone said, replacing the laser did the trick. Also not a bad idea to regrease the rails that the laser mech moves on while you're installing the new laser.
    I hope to get the new laser this month, is already ordered. I already greased the rails, and even a bit the gears, but I will clean everything when the new laser arrives to remove old grease remains, and I will regrease carefully while installing. Thanks also for the advice!

  12. #12
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    Look how scratched is the lens...
    Attached Images Attached Images

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    Old Man
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    Yeah, I think it's fair to say that's fucked.
    Bonuskun - "Please young man. You telling me to shut up on an internet forum is about going to have the same effect of trying to tell Tarma that Metal Slug 4 was the best Neo Game ever.

    Not going to happen."


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    Mr. Big's Thug

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    How in the world did that even happen?

    Would be neat to see if you can wet sand it and buff it back to being a smooth finish though.

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    Quote Originally Posted by ysselcneogeo View Post
    How in the world did that even happen?
    I have no idea, but it looks like the lens was scratched on purpose.


    Quote Originally Posted by ysselcneogeo View Post
    Would be neat to see if you can wet sand it and buff it back to being a smooth finish though.
    Yes, the new laser will take some time to arrive, and I already removed the damaged one from the console, so I will try to carefully polish the lens as much as possible and check it again. Nothing to lose anyway!

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    Polishing the lens was ineffective...

    Anyway, the new laser arrived to Japan today, so I hope to have it soon!

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    Quote Originally Posted by Demiurgo View Post
    Polishing the lens was ineffective...

    Anyway, the new laser arrived to Japan today, so I hope to have it soon!
    That lens appears to have been damaged on purpose. No amount of polish will restore it sadly

    Hopefully the new lens arrives to you soon!
    [Rot] 1:39 pm: Twonk is a SAVIOR!


  19. #19
    Mr. Big's Thug

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    Its just not logical why anyone would ruin the lens. It makes me wanna buy a couple spares so the thing last me the rest of my life.

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    Quote Originally Posted by Tw3ek View Post
    That lens appears to have been damaged on purpose. No amount of polish will restore it sadly
    Yes, looks like the damage was not an accident... and I wonder what kind of accident can make a damage like that.

    Quote Originally Posted by Tw3ek View Post
    Hopefully the new lens arrives to you soon!
    It arrived today!

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    Quote Originally Posted by ysselcneogeo View Post
    Its just not logical why anyone would ruin the lens. It makes me wanna buy a couple spares so the thing last me the rest of my life.
    Well, is a quick way to sabotage the console without any obvious damage, but again I wonder why anybody will do something like that...

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    Lens received, installed and CDZ now working like a dream!

  23. #23
    Old Man
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    Quote Originally Posted by Demiurgo View Post
    Lens received, installed and CDZ now working like a dream!
    Cool, glad to hear you've got your CDZ up and running again!

    Just out of interest, where did you get your replacement lens from? Generic from eBay? I'd love to be able to find stock of the original Sharp lasers...
    Bonuskun - "Please young man. You telling me to shut up on an internet forum is about going to have the same effect of trying to tell Tarma that Metal Slug 4 was the best Neo Game ever.

    Not going to happen."


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  24. #24
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    Quote Originally Posted by Demiurgo View Post
    Lens received, installed and CDZ now working like a dream!

    Awesome! What cd titles are you planning to hit up first?

    超えるべき奴がいる。

    北斗神拳は無敵だ。

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    Quote Originally Posted by BlackaneseNiNjA View Post

    Awesome! What cd titles are you planning to hit up first?
    I started with Art of Fighting 3, but problem arose again...

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