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pbiancardi
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Post subject: Re: Can spindle motors be rebuilt? Posted: 02 Nov 2018, 12:57 |
Advanced fan |
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Joined: 11 Oct 2015, 16:35 Posts: 555 Location: United States Has thanked: 2 times Been thanked: 76 times
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cplusplus wrote: I would assume so. No idea what the cost would be though. That is what I think also. If someone is sitting on an expensive player where raiding parts from a similar model isn't possible this might be the only option if / when a spindle motor goes.
_________________ Sony HIL-C2EX w/ AC3 Sony HIL-C1 w/ AC3 Sony MDP-999
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cplusplus
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Post subject: Re: Can spindle motors be rebuilt? Posted: 03 Nov 2018, 03:02 |
Hardcore fan |
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Joined: 13 Aug 2018, 03:18 Posts: 1517 Has thanked: 447 times Been thanked: 587 times
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rein-o wrote: You are dealing with a technology issue, these were never made to be taken apart and rebuilt. This is true, but I was in a situation where my spindle motor was no longer functional and there were no parts available, I would attempt to rebuild it myself. I've seen some rebuilds of pretty small DC motors. I guess the next step would be attempting to find a motor of the same specifications which seems a lot less realistic.
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pbiancardi
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Post subject: Re: Can spindle motors be rebuilt? Posted: 05 Dec 2018, 18:36 |
Advanced fan |
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Joined: 11 Oct 2015, 16:35 Posts: 555 Location: United States Has thanked: 2 times Been thanked: 76 times
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rein-o wrote: Ugh, those small caps are a total pain to deal with, you need to have Zero shake and or special equipment to replace them.
When those types of board are made they go through a river of liquid solder or have machine arms doing the soldering jobs.
Also one needs to find out how those mags are in way of distance from the outer to inner ring, that will make a difference if worn and if they need to be replaced.
Those coils shouldn't need to be messed with but they can always be re-wound if needed, thats the easiest part of the whole spindle there. I take no credit for any of this information, this is from my buddy on FB. I figured all we need is someone capable of doing this and I think I found him. I know a lot of you think FB LD groups are all fun and games with no serious discussion going on and while I do agree that the large group now sucks there are other groups and some of us are trying to do meaningful things on the platform (along with the normal joking around) - There are no capacitors on the board only two resistors, jumpers, and hall effect monitors. Components are SMD, difficult to do by hand but not impossible for a skilled tech (none of this was solder bathed on). The hall effect monitors sense electromagnetic fields they are basically speed monitors. Possible points of failure for a spindle motor are - 1. Seized bearing. 2. Burned coil. 3. Dead hall effect monitor. 4. Physical damage to the case or shaft. If we have a spindle motor that is known to be bad while the rest of the player is working perfectly he is confident that motor can be repaired.
_________________ Sony HIL-C2EX w/ AC3 Sony HIL-C1 w/ AC3 Sony MDP-999
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rein-o
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Post subject: Re: Can spindle motors be rebuilt? Posted: 05 Dec 2018, 19:46 |
Jedi Master |
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Joined: 03 May 2004, 19:05 Posts: 8104 Location: Dullaware Has thanked: 1219 times Been thanked: 843 times
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Those parts are not solder bath correct, but some electronics are done that way, not the above. Just pointing out the types of non human soldering. It can be done but very, very hard. You need that stable hand or a robotic arm. As the picture says they are Hall Sensors, I've never heard of them, but then again I've never heard of everything. I just did a search and see what they are but they sure do look like those micro caps that are on more modern electronics that I've encountered with guitar pedals and amps. https://en.wikipedia.org/wiki/Tantalum_capacitorI didn't know the correct name but I believe these are what I've encountered in the past. No matter, good luck to whoever is doing it. The nice thing is that the coil wire is not super thin so you can wrap it by hand and it only has a few wraps not multi-thousands like guitar pickups or other transformers.
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remav
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Post subject: Re: Can spindle motors be rebuilt? Posted: 18 Oct 2019, 02:02 |
Honest fan |
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Joined: 15 Aug 2018, 02:00 Posts: 100 Location: United States Has thanked: 2 times Been thanked: 13 times
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I have a CLD-99 spindle motor that might fit your need. It still works, but at best only gets through a couple movies before slowing & finally stops. One thought I had is that it is just dying for some lube & I see there is a hole on top. Any chance that's all it might need? If so, what lube & how? Next, if the bearing is just too far gone it might be a good candidate for a fix attempt. Contact info for anyone who would like to try?
The only other thing that I'd like to say to anyone out there that is thinking this is major surgery. It isn't. Yes, you have to move a few things out of the way, but with the cables & braces etc out of the way, the Pioneers of this vintage require only 4 screws to allow removal of the entire track/laser assy. Move a slide rail out of the way (1 screw) & 3 screws are all that hold the motor in. It drops out the bottom. Most importantly, nothing you touch affects any of the alignments. The donor box for my 99 was a CLD-503, so a little easier, but anyone with a little ability should not fear swapping out a spindle motor.
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jimbanville1
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Post subject: Re: Can spindle motors be rebuilt? Posted: 14 Apr 2021, 03:46 |
Genuinely interested |
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Joined: 11 Mar 2021, 04:45 Posts: 42 Location: United States Has thanked: 0 time Been thanked: 7 times
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cplusplus wrote: Disassembled a failing spindle a CLD-D702. There are three electrolytics in there. 50v 33uf. Could cap failure be the direct cause of some spindle failures? I just disassembled my motor. Can you tell me how to remove the hub without damaging it please? Thanks EDIT...nevermind...got it!
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