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Trouble with Sears Model 934.54810350-Motor Spins

 
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Sun Aug 29, 2010 10:53 pm    Post subject: Trouble with Sears Model 934.54810350-Motor Spins Reply with quote

I'm trying to get one of my two CED players to work. They both originally worked fine, but both developed different problems. The problem I'm having with the Sears is this;

When I load a disc I can hear the motor start up and the Red Side 1 light comes on, but nothing else happens.

If I take the cover off I can see that the disc is just sitting there and not dropping down into the player and spinning.

If I slip the disc holder back in it releases the CED and the motor stops spinning.

Wondering if anyone can tell me why the disc is not dropping down and going into the play mode. Any advice would be appreciated.
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deantjeep



Joined: 03 Aug 2010
Posts: 312
Location: Newberg, OR

PostPosted: Mon Aug 30, 2010 9:41 am    Post subject: Perhaps your answer here Reply with quote

Hi, I just received a free Sears player, an older model from your particular player, and it had the same issue. The motor spins up, but the disc will not drop down to the turntable to play. The answer is to replace the loading belt (http://cedmagic.com/tech-info/belt-replacement-guide/vip1000-chassis.html). Use this link to view where the belt is located.
I purchased a replacement belt from Tom at CEDmagic.
My free player now works like new. It is absolutely quiet, smooth loading, and great picture and sound. The stylus is in great shape. These are not easy to find either. I have 3 of them, 2 of which I kept from an old Realistic player that I tossed during the last move.

Hope this helps you out! Good luck!
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Mon Aug 30, 2010 10:01 am    Post subject: Re: Perhaps your answer here Reply with quote

deantjeep wrote:
The motor spins up, but the disc will not drop down to the turntable to play. The answer is to replace the loading belt (http://cedmagic.com/tech-info/belt-replacement-guide/vip1000-chassis.html).


Really? Interesting. In your situation, was the belt intact, but just not working properly? I know that my loading belt is there on mine. I just looked at it last night. And as I mentioned, I have had this player for awhile and it worked fine until about a year ago. But if something as easy and inexpensive as the belt might fix it I will sure give it a try.

Thanks for the info,
George
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Mon Aug 30, 2010 10:01 am    Post subject: Re: Perhaps your answer here Reply with quote

deantjeep wrote:
The motor spins up, but the disc will not drop down to the turntable to play. The answer is to replace the loading belt (http://cedmagic.com/tech-info/belt-replacement-guide/vip1000-chassis.html).


Really? Interesting. In your situation, was the belt intact, but just not working properly? I know that my loading belt is there on mine. I just looked at it last night. And as I mentioned, I have had this player for awhile and it worked fine until about a year ago. But if something as easy and inexpensive as the belt might fix it I will sure give it a try.

Thanks for the info,
George
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deantjeep



Joined: 03 Aug 2010
Posts: 312
Location: Newberg, OR

PostPosted: Mon Aug 30, 2010 11:32 am    Post subject: Reply with quote

Yes, the belt was still there and intact, however as I watched the loading process, I could see that the belt was not tight enough to operate the loading process. It would just slip and the loading motor would just spin without moving the belt. Once I replaced the belt, I could see everything moving properly and the loading motor spun, rotating the new belt and the disc dropped onto the turntable.
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Mon Aug 30, 2010 1:10 pm    Post subject: Reply with quote

deantjeep wrote:
Yes, the belt was still there and intact, however as I watched the loading process, I could see that the belt was not tight enough to operate the loading process. It would just slip and the loading motor would just spin without moving the belt. Once I replaced the belt, I could see everything moving properly and the loading motor spun, rotating the new belt and the disc dropped onto the turntable.


Great. Well, I ordered a belt from Tom and he's just in the next state South of me, so I should have it soon. I'll install it and be sure to report back. Thanks again for the tip. It is just so much easier to figure out these issues when you can compare notes with other owners.
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deantjeep



Joined: 03 Aug 2010
Posts: 312
Location: Newberg, OR

PostPosted: Mon Aug 30, 2010 4:22 pm    Post subject: Reply with quote

I hope it works out for you!

I ordered from Tom, all 3 belts for this player and had to replace 2 of the 3.

Good Luck!
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Thu Sep 02, 2010 7:30 pm    Post subject: Sears Player - New Problems - Still Won't Play Reply with quote

deantjeep wrote:
I hope it works out for you!

I ordered from Tom, all 3 belts for this player and had to replace 2 of the 3.

Good Luck!


OK, got the loading belt from Tom, installed it, and it changed the problem, but did not fix it. I read in the troubleshooting guide that a problem that sounded similar to mine could be caused by a bad or missing stylus. I knew my stylus was good before my last move, but I took it out and took a look. Put it back in, put in a disc and this time it played perfectly. Maybe my stylus had just gotten a bit ajar in my last move. Whatever the reason, I now have two working CED players once again.
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deantjeep



Joined: 03 Aug 2010
Posts: 312
Location: Newberg, OR

PostPosted: Thu Sep 02, 2010 8:14 pm    Post subject: Reply with quote

Hi there,

With the new loading belt in place, does the disc now load and drop onto the turntable? If so, then you did fix that problem.

Next to check is to open the player and watch the arm drive belt. Make sure this belt is working and not slipping. I had to replace this belt when I replaced the loading belt in my player. It had too much slack in it, stretched with age, so I replaced it. I didn't try to load and play a disc prior to changing both belts.

After that check the timing belt, although I never had one of those fail.

Do you know for sure if your stylus is good? Players do all sorts of strange things when the stylus goes bad.

Maybe some other owners can provide you with additional information, should they have encountered the same problem.

Good Luck!
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Fri Sep 03, 2010 3:16 pm    Post subject: Reply with quote

deantjeep wrote:
Hi there,

With the new loading belt in place, does the disc now load and drop onto the turntable? If so, then you did fix that problem.

Next to check is to open the player and watch the arm drive belt. Make sure this belt is working and not slipping. I had to replace this belt when I replaced the loading belt in my player. It had too much slack in it, stretched with age, so I replaced it. I didn't try to load and play a disc prior to changing both belts.

After that check the timing belt, although I never had one of those fail.

Do you know for sure if your stylus is good? Players do all sorts of strange things when the stylus goes bad.

Maybe some other owners can provide you with additional information, should they have encountered the same problem.

Good Luck!


Well, the latest update is that it was playing fine, but came to a point about midway and just started skipping at the same location. Would not go forward. Plus, the reject button did nothing. In looking at the inside more closely, the drive belt had fallen off and is very stretched out. So, should have ordered all new belts when I ordered the loading belt. I have ordered the others and I'm confident replacing the belts is going to solve the problem. Will report back later.
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deantjeep



Joined: 03 Aug 2010
Posts: 312
Location: Newberg, OR

PostPosted: Fri Sep 03, 2010 4:26 pm    Post subject: Reply with quote

Sounds exactly like my issues with my player. Changing out that arm drive belt should solve your issue.

I use to have an old Realistic CED1 player, which I bought new when they came out at Radio Shack. It finally died for good and I tossed it out during my move to Oregon. I kept my stylii (2), the original box and manual from the player. Glad I did, as the stylii work perfectly in this new (old) Sears player and the player fits perfectly in the box.

What is nice about this player is that even though it is mono, it has the RCA AV outputs. The 90 and 100 players don't have AV outputs, only the RF output. This old Sears player also runs absolutely quiet, very smooth operation.

Hope you get your player up and running with the new belt!
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Sat Nov 24, 2012 8:56 pm    Post subject: Reply with quote

Well, I find myself in the same situation I was in two years ago when I originally posted about both my players. Each of them once again has a problem. While I troubleshoot my RCA I thought I'd try to solve the issues with my Sears player again. The drive belt has been replaced, but that only partially solved the problem. The player plays fine until about midway on the disc. As it nears the midway point you can hear a clicking noise. Then, after clicking for a bit it begins to skip at that point and will not go forward.
I don't recall now if I ever replaced the arm drive belt. Does it sound like this could be the issue? Also, a couple years ago I believe i was referencing a troubleshooting section here on the forum, but I can't seem to locate that now.
I'm not sure where the belt are located on this particular player.
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Rixrex



Joined: 28 May 2004
Posts: 1222

PostPosted: Sat Nov 24, 2012 9:50 pm    Post subject: Reply with quote

That belt is a toothed belt at the rear left side of the player looking from the front. Maybe that's the trouble.

If you can run the plyer with the cover off, maybe you can listen to find out where the clicking is coming from to track it down.
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Sun Nov 25, 2012 11:57 am    Post subject: Reply with quote

Rixrex wrote:
That belt is a toothed belt at the rear left side of the player looking from the front. Maybe that's the trouble.

If you can run the plyer with the cover off, maybe you can listen to find out where the clicking is coming from to track it down.


Well, I took the cover off and unfortunately, the Sears is designed for less convenient access than the RCA. There is a full circuit board on top that obscures the platter. I didn't want to tear too much apart since I just sent for the replacement belts and can't do any repairs until they arrive.
I don't see the toothed belt, but I'm assuming it is somewhere underneath that circuit board. I did play a movie and as always, it plays perfectly until about midway. Then the clicking starts. When I put my ear down to the player the clicking was definitely coming from the back portion of the player. Sounded like it was right at the back middle.
Are there any troubleshooting guides for this machine that describe how to dismantle it to gain access to the belts to change them? I don't want to start disassembling things that don't need to be taken apart when I get the new belt.
Thanks for any info anyone can provide!
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Rixrex



Joined: 28 May 2004
Posts: 1222

PostPosted: Sun Nov 25, 2012 6:41 pm    Post subject: Reply with quote

Okay, the toothed belt ought to be visible looking at the rear of the player, maybe from the lower part of from underneath. You may only be able to see a small part of it.

You should also look for an obstruction that stops the stylus arm from moving forward and causes the belt to slip gear and click. I'm thinking that's the clicking sound, if it's not the belt having worn teeth at that point.

It will take a lot of peering in, between, and around blockages, and a good strong flashlight.
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Mon Nov 26, 2012 12:49 pm    Post subject: Reply with quote

Rixrex wrote:
Okay, the toothed belt ought to be visible looking at the rear of the player, maybe from the lower part of from underneath. You may only be able to see a small part of it.

You should also look for an obstruction that stops the stylus arm from moving forward and causes the belt to slip gear and click. I'm thinking that's the clicking sound, if it's not the belt having worn teeth at that point.

It will take a lot of peering in, between, and around blockages, and a good strong flashlight.


Got it. I will give it another look and see what I can see.
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SelectaVision420



Joined: 25 Mar 2012
Posts: 1226
Location: Hartford

PostPosted: Sat Dec 01, 2012 3:18 pm    Post subject: Reply with quote

the toothed belt is at the back of the player, in mine its orange
_________________
Sears 274 & 934(80150,10&11350),sft100,sgt250,sjt090,100,101,200,300,400,vp550, VP4000!
caddy.daddy.fleetwood@gmail.com
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dumbchemist



Joined: 27 Oct 2011
Posts: 291
Location: Central New York

PostPosted: Sun Dec 02, 2012 3:38 am    Post subject: Reply with quote

This is just an FYI on the Sears players and may apply to other Hitachi style players:

My 934 player that I bought in 1983 was having a problem with the stylus assembly being slow to move over to play a disc. The drive arm belt was replaced this past summer so I knew it should not be giving problems. It seemed that the lubricant on the 2 linear bearings for the stylus drive arm at the front and back of the player had gotten sticky (I guess from age.) Because of the way the player is built, it is very hard to get at either one for cleaning. I did what I could do to remove the old grease and then relubricated the bearings with petroleum jelly. I then had the player load and unload a disc a number of times in order to get the stylus arm to move back and spread the jelly on the bearings. The player now works as in the olden days. I did the same treatment on my other 934 player and it responded as well.
_________________
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.
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SelectaVision420



Joined: 25 Mar 2012
Posts: 1226
Location: Hartford

PostPosted: Sun Dec 02, 2012 10:15 am    Post subject: Reply with quote

dumbchemist wrote:
This is just an FYI on the Sears players and may apply to other Hitachi style players:

My 934 player that I bought in 1983 was having a problem with the stylus assembly being slow to move over to play a disc. The drive arm belt was replaced this past summer so I knew it should not be giving problems. It seemed that the lubricant on the 2 linear bearings for the stylus drive arm at the front and back of the player had gotten sticky (I guess from age.) Because of the way the player is built, it is very hard to get at either one for cleaning. I did what I could do to remove the old grease and then relubricated the bearings with petroleum jelly. I then had the player load and unload a disc a number of times in order to get the stylus arm to move back and spread the jelly on the bearings. The player now works as in the olden days. I did the same treatment on my other 934 player and it responded as well.


thanks for the info!
_________________
Sears 274 & 934(80150,10&11350),sft100,sgt250,sjt090,100,101,200,300,400,vp550, VP4000!
caddy.daddy.fleetwood@gmail.com
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Sun Dec 02, 2012 6:12 pm    Post subject: Reply with quote

Rixrex wrote:
Okay, the toothed belt ought to be visible looking at the rear of the player, maybe from the lower part of from underneath. You may only be able to see a small part of it.

You should also look for an obstruction that stops the stylus arm from moving forward and causes the belt to slip gear and click. I'm thinking that's the clicking sound, if it's not the belt having worn teeth at that point.

It will take a lot of peering in, between, and around blockages, and a good strong flashlight.


Well, my Sears is now working once again although, I'm not quite sure what I did to get it playing. I took the cover off and took out the screws so the circuit board can be tipped to the back revealing the disc and platter. I didn't take it far enough apart to access the toothed belt, but I could see it clearly. I put in a disc and it played both sides with no problems. I did not experience the clicking and then the skipping at one spot midway as I have in the past.
Put it back together and now it is playing fine. i did not change out the toothed belt since it appears to be fine.
So, I'll keep my fingers crossed that it continues to play. On the second movie since it started working again and so far, so good.
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Rixrex



Joined: 28 May 2004
Posts: 1222

PostPosted: Sun Dec 02, 2012 8:04 pm    Post subject: Reply with quote

I would bet that moving the top panel out of the way cleared some weird and tiny obstruction out of the way or particle off the belt, etc. I had these two experiences:

On an RCA SGT 250, the playr always had a scuff/squeak sound when playing. I luricated all over and checked and checked the platter wasn;'t touching and the belt wasn't touching, and so on. Turned out that the top small circuit panel had drooped just enough to cause it to scuff against the top of the center spindle when playing. A little spacer in the screw slot lifted it upo enough to solve the trouble.

Another time, a laserisc player kept skipping backward at the same point in time in any disc. Turns out that was a small particle sitting on the laser assembly track stopping it from moving forward.
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dr8track



Joined: 29 Aug 2010
Posts: 48

PostPosted: Mon Dec 03, 2012 2:24 pm    Post subject: Reply with quote

Rixrex wrote:
I would bet that moving the top panel out of the way cleared some weird and tiny obstruction out of the way or particle off the belt, etc. I had these two experiences:

On an RCA SGT 250, the playr always had a scuff/squeak sound when playing. I luricated all over and checked and checked the platter wasn;'t touching and the belt wasn't touching, and so on. Turned out that the top small circuit panel had drooped just enough to cause it to scuff against the top of the center spindle when playing. A little spacer in the screw slot lifted it upo enough to solve the trouble.

Another time, a laserisc player kept skipping backward at the same point in time in any disc. Turns out that was a small particle sitting on the laser assembly track stopping it from moving forward.


Yes, whatever magical gremlin came to my rescue, I'm thankful that it's working again. Now I just wish my RCA SJT 200 would start working properly again for no explainable reason. Smile But at least I have one functioning CED player, so I'm not complaining.
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