CED VideoDisc and Player Discussion

[dumbchemist]

About a week ago, I tried to play a CED on my Sears 934...150 player. It seemed to load the disc; but, the stylus acted as if there was no signal from the disc and went back to its park position. I thought that was odd so I tried to play the disc on my SJT-200 player and this player acted the same way (no signal from the disc). I decided to check the disc itself since 2 different players had acted the same. I pulled out the disc from the caddy and there was NO disc to pull out. I then removed the cover on the Sears player and everything looked okay inside. I removed the cover on the SJT-200 player. Inside, there were 4 discs stacked on the platter. Apparently, the mechanism had not been working correctly. I then removed the discs being as careful as possible not to leave too many fingerprints on them. To identify each disc, I had to insert each disc into an empty caddy and play the disc on my Sears player. In this way, I was able to match each disc up to its caddy.

During the above "exercise", I found out what was the cause. It seems that one of the rings that surrounds a disc was broken on the end that is at the label end of the caddy. I believe that the broken ring did not go back into the caddy correctly when the disc was removed which caused the disc to stay in the player.

Has anybody else have a similar experience?

Because of the above, my SJT player does not work when loading a disc. The back loading motor continues to run even after a disc has been inserted and the inserted disc will not rise when the player is set to unload.
_________________
Sears 934-54780150 & 934.54810350,
Realistic CED-1
1-SJT-400. 2-SJT-200 & 1-SJT-090.
CLD-D406, CLD-980.
MDP-600, MDP-MR1.

[SelectaVision420]

holy cow, so you are saying as a result of the "traffic jam" the player will no longer unload a disc? maybe there is a broken piece of caddy spine still in there?
_________________
Sears 274 & 934(80150,10&11350),sft100,sgt250,sjt090,100,101,200,300,400,vp550, VP4000!
caddy.daddy.fleetwood@gmail.com

[blindfury420]

Check on the function gear assembly on the back right. See if the metal bar (transfer rod) is still attached to the gear by the transfer rod coupling. Looks like a lego hand on the side of the gear that holds the transfer rod. It can break easily. Cedatum sells this part! This may not be the solution to your problem but its the first thing i check if a disc wont raise or lower!
_________________
I dont own

McMicheal 5001h
Hitachi VIP202P
JCP 686-5705
RCA SKT265, SKT300
RCA SJT400X, SJT425

[dumbchemist]

[Rixrex]

You can contact Cedatum at Cedatum.com to get the replacement part.

You can also repair the part by drilling a small hole where the pin broke off and inserting a metal pin of the proper size to match the hole in the gearing, and using epoxy to hold it in place. I have made such metal replacement pins out of small nails.

But buying the replacement part plus a spare is easier.

[SelectaVision420]

in my manual its called a transfer rod coupling, im not sure if the part number is the same for the sjt, but the skt part number is 157543
_________________
Sears 274 & 934(80150,10&11350),sft100,sgt250,sjt090,100,101,200,300,400,vp550, VP4000!
caddy.daddy.fleetwood@gmail.com

[Rixrex]

That's the name alright. They are the same part. The part is used for any SJT/SKT player.

When installing it, you must support the transfer rod in a way that keeps it up above the pivot point, and you have to turn the gearing so the pivot point is at the upper front position. This allows you to insert the new or repaired part and then drop the rod into place.

Then you manually rotate the gearing into normal off position, or into a lower position close to the bottom switch, making sure the transfer rod is through the turntable slot all the while.

The part probably snapped because the weight of four discs was just too much to lift.

[dumbchemist]

[Rixrex]

Best way is by weight. As you said, a disc is about 1 lb, and the caddy is only half pound. So a lightweight caddy means no disc.

Only SJT/SKT players don't allow easy visual check of disc still in player. All other players have a way to see inside easily.

[dumbchemist]

[SelectaVision420]

[Rixrex]

I doubt you will miss it any longer. Take an empty caddy in one hand and a full caddy in the other and you'll see there's a significant difference in the heftiness of each. Once you are aware of this difference, you'll be fine.

[dumbchemist]

10-4 good buddies.

I think that only the RCA sjt series could be prone to allowing more than 1 disc inside.

My Sears 150 will allow only 1 disc at a time inside as any attempt to insert a second disc is physically impossible. I cannot vouch for the other models of players though as I have not seen them in-person (so to speak).
_________________
Sears 934-54780150 & 934.54810350,
Realistic CED-1
1-SJT-400. 2-SJT-200 & 1-SJT-090.
CLD-D406, CLD-980.
MDP-600, MDP-MR1.

[Rixrex]

The strange thing is that the disc should raise up properly in any SJT/SKT player if the transfer rod and coupling are working. If not working but still allowing a caddy to be inserted, then the coupling would not have been broken since it is the part that operates the microswitches to do this function.

The only thing I can see as a problem that would cause this would be a transfer rod that does not lift the disc all the way up, and hence the caddy slides over the disc allowing it to drop back down even though the caddy is removed. Of course, the disc would not play as the microswitches operated by the caddy spine would not be engaged.

I would say, once you get the part and replace it, operate the player with cover off to be sure the disc is being raised up all the way needed. Also make sure your transfer rod has the cap still on its tip. Also make sure the reciever spindle above the turntable is not gone, as sometimes it gets taken out and not returned.