Pioneer LD-S2 LaserDisk drawer problem

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Is the friction just trying to turn a gear-train , the wrong way. Do you hear the drawer motor spinning? Most likely perished drive band between first and second pinion, next likely cracked first pinion if plastic

The motor is audible, both when loading and (trying to) unload. There is no obvious indication that anything is broken. If the drawer is blocked when unloading, it automatically retracts, as it's supposed to.

It is probably a lubrication problem. I need to know what lubricant to use.

If worse comes to worst, I can call Pioneer and ask for advice.

To wit.

I had the same problem, opened up the unit, determined that friction was the problem, but don't remember what I did about it.

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You're a great help.

Clean all the rails and use Lubriplate on them. Also, I think this one use d a drive belt. The belt may be slipping as it takes a bit to get hte draw er started. Check these first and update this thread. In the meantime, I'l look up my old records. I haven't seen one of these in a long time.

Dan

I saw a reference to drive belts.

Thanks. I'll get to it later today.

Getting to the loading mechanism requires removing at least two large circuit boards. On the chance I might damage them (physically or electrically), I'm not going to remove them -- especially as I don't have a proper work area. However...

The service manual shows that the tray can be lubricated along its tracks, which are easily accessed when the tray is "out". The lubricants used are described as

Floil GB-TS-1 Jig No. GYA-008

Grease G-397 Jig No. GYA1001

I was able to find both at Encompass Parts Distribution and PacParts:

They're not cheap. Anyone know any substitutions?

There is a loading belt and a synchro belt. Both appear to require major disassembly to access.

Thanks.

alt.video.laserdisc is pretty dead these days, but you may want to post this question in the LaserDisc Database forums:

Thanks.

Since my previous post, I checked the gearing on the disk tray. It was COMPLETELY DRY. There's no sign there had EVER been ANY lubrication at all.

Perhaps the right lube will fix it. If anyone has suggestions for less-expensive versions of the "official" Pioneer lubricants (at least one of which is still used, in BD players), please let me know. Thanks.

Most of the vendors who sold equipment servicing tools, parts and materials had small kits of different lubricants for electro-mechanical assemblies. Some of the gelled lubricants appeared to have the same characteristics as greases used in manufacturing of VCRs, optical drives etc.

GC Electronics products included several lubricants, and I found that their calcium stearate-based Luberex product is a very good general purpose light duty grease. The last tube I bought was ~$4 for 2 FL oz/56 gms.

-- Cheers, WB .............

Belts have been mentioned but I would like to add my vote. It's the tray loading belt. 20 years old and a big heavy tray? You're lucky it still works at all!

Mark Z.

Much gracias for the suggestion. I don't need to fix the unit "immediately". I can visit the GC site, poke around, and ask a few questions. Thanks.

Closer to 25 years. Perhaps the moderate PNW climate helped preserve it.

The service manual shows that there are at least two belts, one of which drives the loading tray, the other the tray door. Both are buried deep within the machine. I don't wish to open it if I don't have to.