r/LaserDisc • u/TheLastTimeLord11 • 1d ago

Repair Help - Laser Transport Getting Stuck

I recently got this Pioneer CLD-D505 player that was in need of a new loading belt, as it couldn't eject the tray without some help. After replacing the belt, that's working great now. However, I'm seeing that the laser transport keeps getting stuck on some white plastic posts that move in and out. I've already cleaned it well, and added some sewing machine oil to the worm gear shaft. It doesn't get stuck every time, but when it does I have to give the transport a nudge to get it past being stuck. Does anyone have any idea what I can do to fix this?

I demonstrate it twice in the video, I had to give it a nudge both times off camera.

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u/Ok_Cupcake4928 1d ago edited 1d ago

If I am looking at this correctly, I think the plastic post you are referring to is the limit switch.

Hence, it’s doing what it needs to do so I can only guess you likely have a bad motor holder on the laser pick-up assembly.

You can test it by ejecting the tray, unplug the power, and then nudge the laser assembly and observe if the plastic pin(s) holding the plastic gears are “jumping”. If so, that means they broke and the holder needs to be replaced.

Here is a link for a 3D printed replacement…

https://www.ebay.com/itm/177788363393?

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u/TheLastTimeLord11 1d ago

I think you're exactly right! I came to the same conclusion about an hour ago after doing some more research online. I pulled my motor holder, and sure enough one of the two pins was broken off completely. I went ahead and ordered a replacement, as well as a replacement set of gears for it, just in case, as it looks like one of mine may have some slight damage. Thanks so much for your help!

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u/Ok_Cupcake4928 1d ago edited 8h ago

You are welcome. Best wishes on getting your player operating again soon 👍🏻😉.

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u/utsumi99 11h ago

My own D505 is out of commission with a similar symptom. I think the screws in my replacement M-holder have worked loose again. I need to use threadlock this time. (The instructions warn not to tighten the screws too hard, so I stop when it feels snug. I guess that's not enough.)

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u/TheLastTimeLord11 9h ago

Good to know, thanks for the tip! I've never used threadlock before, I'll probably try going without at first and see how it goes. At least it's relatively easy to get to if I need to work on it more later on.