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 Post subject: [CLD-99S] Refuses to play CDs.
PostPosted: 13 Oct 2024, 20:14 
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Pioneer cld-99s player plays LD discs perfectly, but refuses CD discs, maybe there is some kind of laser adjustment, please tell me.
The player recognizes what is in it now. CD disk but does not want to play it, spins it and then stops.
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 Post subject: Re: The Pioneer cld-99s player refuses to play CDs.
PostPosted: 13 Oct 2024, 20:30 
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Buy a CD player.
Be happy it still spins LDs
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 Post subject: Re: The Pioneer cld-99s player refuses to play CDs.
PostPosted: 13 Oct 2024, 20:46 
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Try cleaning the lense with water and a swab. Sometimes it’s just that easy an issue.

If that doesn’t work, could possibly be centering or focus issue but hard to say.
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 Post subject: Re: The Pioneer cld-99s player refuses to play CDs.
PostPosted: 13 Oct 2024, 20:52 
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I cleaned the lens as you recommended, but it didn’t help.
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 Post subject: Re: The Pioneer cld-99s player refuses to play CDs.
PostPosted: 13 Oct 2024, 20:57 
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I would personally try focus now. If you say it plays LD perfectly with no video distortion or audio drop outs, most likely not a centering issue. Also, I think you did confirm the player was able to read the CD TOC? If so, that is a good sign.

Just make sure to take pictures of all the pot settings prior to trying these adjustments.
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 Post subject: Re: The Pioneer cld-99s player refuses to play CDs.
PostPosted: 13 Oct 2024, 21:02 
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Yes, it plays LD discs perfectly without sound loss and with good video image.
I will take a photo of the potentiometer, but where is it located and how will it need to be adjusted?
I played more than ten LD discs, they work perfectly, the sound is also excellent, but more than 5 pieces of CD, not one did not play, although the player identified them all as CD discs
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 Post subject: Re: The Pioneer cld-99s player refuses to play CDs.
PostPosted: 14 Oct 2024, 01:18 
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If it plays LDs but not CDs then the first item to look at is spindle motor centering.
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 Post subject: Re: [CLD-99S] Refuses to play CDs.
PostPosted: 14 Oct 2024, 08:12 
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How can I do motor spindle centering?
centering needed by height?
On this "swinging" bar there is a flag for adjusting it horizontally, do you need to use it to adjust it?
Or does this require replacing the bushings in the engine?


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Last edited by dejavu on 14 Oct 2024, 12:44, edited 1 time in total.
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 Post subject: Re: [CLD-99S] Refuses to play CDs.
PostPosted: 14 Oct 2024, 12:44 
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dejavu wrote:
Pioneer cld-99s player plays LD discs perfectly, but refuses CD discs, maybe there is some kind of laser adjustment, please tell me.
The player recognizes what is in it now. CD disk but does not want to play it, spins it and then stops.


Are these real (pressed) CDs? If so, what condition are they in?

When this player plays LDs is it playing the Digital Sound on the LD?

These are the basic questions that need to be asked first, before you do a single thing like cleaning the lens.
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 Post subject: Re: [CLD-99S] Refuses to play CDs.
PostPosted: 14 Oct 2024, 12:49 
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Yes, this is a real pressed CD, the condition is normal (careful storage and use)
When playing the LD disc, the digital sound is played perfectly.
When playing with maximum rewind speed (forward or backward) LD the picture breaks, but when rewind speed is higher than average and lower, the picture is fine.
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 Post subject: Re: [CLD-99S] Refuses to play CDs.
PostPosted: 14 Oct 2024, 13:40 
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Ok, just checking. “Confirming the complaint is real” is the first step of any diagnosis.
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All about LD care, inner sleeves, shrink wrap, etc.

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 Post subject: Re: [CLD-99S] Refuses to play CDs.
PostPosted: 14 Oct 2024, 14:29 
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How can I fix this problem with reading CDs?
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 Post subject: Re: [CLD-99S] Refuses to play CDs.
PostPosted: 14 Oct 2024, 16:26 
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Other than the suggestion of spindle motor centering I have no idea.

If it plays LDs perfectly with Digital Sound…I wouldn’t bother. There’s too much risk that messing around with something will mess up LD functionally which is invaluable. You can get a really good used CD played for €50.
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 Post subject: Re: [CLD-99S] Refuses to play CDs.
PostPosted: 14 Oct 2024, 17:38 
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The laser needs to read the data on the disc as close to an 90 degree angle as possible. The arc is much sharper for a CD inner track than a LD meaning a CD has a higher requirement for precision centering. I have not done this on a 3070, same as the 99s, for years so you need to look in the service manual for how to do it. It is not an easy process with these older machines. It involves adjustment screws that will move the mechanical base side to side to get the laser at a 90 degree angle from the center of the spindle motor.
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 Post subject: Re: [CLD-99S] Refuses to play CDs.
PostPosted: 14 Oct 2024, 18:47 
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signofzeta wrote:
Other than the suggestion of spindle motor centering I have no idea.

If it plays LDs perfectly with Digital Sound…I wouldn’t bother. There’s too much risk that messing around with something will mess up LD functionally which is invaluable. You can get a really good used CD played for €50.

How is the motor spindle centered?


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 Post subject: Re: [CLD-99S] Refuses to play CDs.
PostPosted: 16 Oct 2024, 08:29 
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In general, today the LD disk stopped working, it is not even detected, i.e. it does not spin....(:
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