Pioneer LD-S2 LaserDisk drawer problem

[William Sommerwerck]

I had to pull out my LV player to compare the LV of "Roger Rabbit" with the
BD. This player is almost 25 years old, and is getting mechanically cranky. To
wit...

The motor-driven drawer closes, but won't open unless I tip the player
forward. * Moving the drawer manually reveals substantial friction, possibly
due to deteriorated lubricant.

I downloaded the service manual from "manual buddy". (Yes, the name is
suspicious-sounding, but it was only $5, and the scan was excellent.)
Unfortunately, the manual doesn't discuss mechanical servicing (other than
alignment).

Before tearing into the unit... Two questions...

Thanks in advance.

* It weighs over 30 pounds and is built like a tank.


"'We already know the answers -- we just haven't asked the right questions."
-- Edwin Land

 

[N_Cook]

I had to pull out my LV player to compare the LV of "Roger Rabbit" with the
BD. This player is almost 25 years old, and is getting mechanically cranky. To
wit...

The motor-driven drawer closes, but won't open unless I tip the player
forward. * Moving the drawer manually reveals substantial friction, possibly
due to deteriorated lubricant.

I downloaded the service manual from "manual buddy". (Yes, the name is
suspicious-sounding, but it was only $5, and the scan was excellent.)
Unfortunately, the manual doesn't discuss mechanical servicing (other than
alignment).

Before tearing into the unit... Two questions...


Thanks in advance.

* It weighs over 30 pounds and is built like a tank.


"'We already know the answers -- we just haven't asked the right questions."
-- Edwin Land

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

 

[William Sommerwerck]

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.

 

[[email protected]]

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

You're a great help<g>.

 

[[email protected]]

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

Dan

 

[William Sommerwerck]

Clean all the rails and use Lubriplate on them. Also, I think this one used

a drive belt. The belt may be slipping, as it takes a bit to get the drawer
started.

I saw a reference to drive belts.

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.

Thanks. I'll get to it later today.

 

[William Sommerwerck]

Check these first and update this thread.

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:

http://www.encompassparts.com/item/5569346/Pioneer/GYA-008/Silicon_Oil_Pl750

http://www.encompassparts.com/item/5569350/Pioneer/GYA1001/Lubricating_Oil_Pdm50

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.

 

[Dave Garrett]

I had to pull out my LV player to compare the LV of "Roger Rabbit" with the
BD. This player is almost 25 years old, and is getting mechanically cranky. To
wit...

The motor-driven drawer closes, but won't open unless I tip the player
forward. * Moving the drawer manually reveals substantial friction, possibly
due to deteriorated lubricant.

I downloaded the service manual from "manual buddy". (Yes, the name is
suspicious-sounding, but it was only $5, and the scan was excellent.)
Unfortunately, the manual doesn't discuss mechanical servicing (other than
alignment).

Before tearing into the unit... Two questions...


Thanks in advance.

* It weighs over 30 pounds and is built like a tank.

30 pounds? Closer to 75. I used to think my CLD-97 was heavy, until I
got a recently-serviced LD-S2 last year. Built like a tank is an
understatement.

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

http://forum.lddb.com/ (you have to register to gain access to the
forums)

http://www.lddb.com (main site)

 

[William Sommerwerck]

alt.video.laserdisc is pretty dead these days, but you may want

to post this question in the LaserDisc Database forums:

http://forum.lddb.com
You have to register to gain access to the forums.

http://www.lddb.com (main site)

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.

 

[Mark Zacharias]

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.

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.

 

[William Sommerwerck]

GC Electronics products includes 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.

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.

 

[William Sommerwerck]

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!

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.